TopChiller is Your Leading Screw Chiller Manufacturer and Supplier In China
High quality screw chiller with single or dual semi-hermetic screw compressor cooling capacity from 50Ton to 680Ton

TopChiller can design and manufacture all types of screw chillers for you

  • Cooling capacity from 50 Ton to 680 Ton
  • Temperature control range from 5℃ to 30℃
  • High efficiency shell and tube type evaporator
  • Air cooled&water cooled condenser
  • Top brand semi-hermetic screw compressor
  • Cooling efficiency heat exchanger
  • Micro-computer temperature controller
  • Easy installation, operation, and low maintenance cost

Your Premier Screw Chiller Manufacturer and Supplier in China

TopChiller is a professional screw chiller manufacturer and supplier for decades years.

The screw chiller is named after the screw compressor. The refrigeration power (cooling capacity) of the screw chiller is higher than that of a scroll chiller.

Screw chiller features an effective large cooling solution that is mainly used in industrial factories such as chemical plants, ink printing plants, automobile factories.

Screw chillers can also be used for the central air conditioning system, large facilities like office buildings, schools, theaters, factories, warehouses, shopping malls, libraries, etc.

In both industrial cooling and air conditioning applications, screw chillers use less power than individual chiller units and traditional air conditioners.

TopChiller is the most reliable and trusted screw chiller manufacturer in China.

we have an air-cooled screw chiller and water-cooled screw chiller serve to your requirements.

As a professional screw compressor supplier over 20 years, we are providing high-quality screw chillers to our customers.

Screw chiller designed and manufactured by TopChiller featuring outstanding advantages as below:

1. Big cooling capacity and wide models are available. TopChiller has a full screw chiller lineup with cooling capacity from 50ton-680ton, both air-cooled screw chiller and water-cooled screw chiller can meet your demands.

2. The screw compressors for the screw chillers are top international brands such as Bitzer and Hanbell. This type of screw compressor features high efficiency, an energy-saving compressor is used to match the high-quality condenser and evaporator, with high efficiency, stable performance, low noise, and long service life.

3. The screw chiller temperature control system adopts imported PLC program controller. The interface is equipped with a big-screen touching screen which is simple and easy to operate.

4. The screw chiller has reliable safety protection devices, including high and low voltage protector, exhaust overheats protector, compressor motor overheat protector, overload current protector, antifreeze temperature protector, water flow protector, emergency stop switch, temperature sensing fusible plug, safety valve, etc.

5. Each screw chiller is charged environmental friendly refrigerant before delivery to your hand. These refrigerants are R407c, R134a, R410a, and R404a based on your detailed requirements and conditions.

6. Our screw chiller is reasonable in design, compact in structure, beautiful in appearance, need a small occupy space that can be installed outdoors to save your space.

Screw chillers function as big cooling capacity refrigeration machines are widely used in both industrial and commercial applications.

Some benefits of using our screw chillers:

1. Occupy Very Less Installation space

The screw chiller works on screw compressors and usually requires very little space to install them in the industrial factories and commercial buildings. The compressor is the major bulk unit and they have very few electronic control boxes. The inlet/outlet pipes and the main transporter of water and screw chiller do occupy very less space than other types of the chiller.

2. Energy Efficiency

When you use screw chillers, they are energy efficient than any other technology in refrigeration and cooling plants. Since, they can control the level of optimal cooling and never over cools based on the heat load capacity. They consume less energy to function due to the compressor type and its mechanism.

3. Little Maintenance

The screw chiller compressor has very few spare parts and may function in the long run efficiently. also the mechanical side there is very little maintenance to save you time and money.

4.The best screw compressor for long-run

When you install the screw chiller, you can use it in the long run without any disturbance. The screw compressor works efficiently and never becomes troublesome while functioning for a long time.

If you are sourcing a high-quality screw chiller supplier for industrial cooling and air conditioning applications, TopChiller is your best choice.

Do not hesitate to contact our sales engineer to customer your screw chiller.

Screw Chiller Technical SpecificationsScrew Chiller Technical Specifications
Model                                                          ItemsTPW-100WSHTPW-135WSHTPW-175WSHTPW-190WSHTPW-230WSHTPW-255WSHTPW-300WSHTPW-350WSHTPW-375WSHTPW-415WSHModel                                                            ItemsTPW-470WSHTPW-500WSHTPW-560WSHTPW-590WSHTPW-610WSHTPW-720WSHTPW-790WSHTPW-840WSHTPW-940WSH
Cooling Capacitykcal/h86000116100150500163400197800219300258000301000322500356900Cooling Capacitykcal/h425700447200490200533200550400645000705200756800851400
KW100135175190230255300350375415KW495520570620640750820880990
Input PowerKW22303742515665758090Input PowerKW103109118127131151167177199
Max CurrentA405367738997109126137153Max CurrentA177187203218225260288306345
Power Source3PH~380V/415V/480V~50HZ/60HZ(3PH~200V/220V   50HZ/60HZ)Power Source3PH~380V/415V/480V~50HZ/60HZ(3PH~200V/220V   50HZ/60HZ)
RefrigerantTypeR22(R134a/R407c/R404A)RefrigerantTypeR22(R134a/R407c/R404A)
Chargekg17222733384350556066Chargekg828894100110121132143165
ControlThermostatic expansion valveControlThermostatic Expansion Valve
CompressorTypeSemi-hermetic screwCompressorTypeSemi-hermetic Screw
PowerKW22303742515665758090PowerKW103109118127131151167177199
Start modeY-△Start ModeY-△
Capacity control%0-33-66-1000-25-50-75-100Capacity Control%0-25-50-75-100
EvaporatorTypeShell and tube (SS plate heat exchanger)EvaporatorTypeShell and tube (SS plate heat exchanger)
Chilled waterm³/h17.223.23032.74043.951.660.264.571.4Chilled Waterm3/h85.189.498106.6110129141151.3170.4
Water pressureKPa35353538404242454543Water PressureKPa404143454545454345
Pipe connectionInch3″3″3″3″4″4″4″4″4″4″Pipe ConnectionInch5″5″5″6″6″8″8″10″10″
CondenserTypeWater cooled type shell and tubeCondenserTypewater cooled type Shell and tube
Cooling waterm³/h2128.436.64048.353.562.87378.286.8Cooling Waterm3/h102.8108.2118.3128.5132.6155169.7181.8204.5
Water pressureKPa42424243424343454545Water PressureKPa484546484648484547
Pipe connectionInch3″3″3″4″4″4″4″4″5″5″Pipe ConnectionInch5″5″6″6″6″8″8″10″10″
Safety protection devicesInner thermostat for compressor motor, unit overload relay, high and low pressure switch, freeze protection thermostat, reverse phase protection relay, discharge gas thermostat, flow switchSafety protection devicesInner thermostat for compressor motor, unit overload relay,high and low pressure switch, freeze protection thermostat, reverse phase protection relay, discharge gas thermostat, flow switch
DimensionLengthmm2150235024502600275028002800290029003000DimensionLengthmm300031003300350038003900410043004500
Widthmm5606206506807809509509509501200Widthmm120012501380138013801380145014801480
Heightmm1550165016501650165018001950195019501580Heightmm158016301630175017501750178017801780
Net weightkg65090010501200155018001900205020502350Net weightkg250025002650285031503350362038504160
Running weightkg820105012001400180021002200235023802530Running weightkg270030003100335037504000430046005000
The above specifications are according to the following design conditions:
1, Chilled water inlet/outlet temperature 12℃/7℃.
2, Cooling water inlet/outlet temperature 25℃/30℃.
We reserve the right to modify the specifications without further notice.
The above specifications are according to the following design conditions:
1, Chilled water inlet/outlet temperature 12℃/7℃.
2, Cooling water inlet/outlet temperature 25℃/30℃.
We reserve the right to modify the specifications without further notice.
Screw Chiller Technical SpecificationsScrew Chiller Technical Specifications
Model                                                             ItemsTPW-200WDHTPW-270WDHTPW-350WDHTPW-380WDHTPW-460WDHTPW-510WDHTPW-600WDHTPW-700WDHTPW-750WDHTPW-830WDHModel                                                              ItemsTPW-990WDHTPW-1040WDHTPW-1140WDHTPW-1240WDHTPW-1280WDHTPW-1500WDHTPW-1640WDHTPW-1760WDHTPW-1980WDH
Cooling Capacitykcal/h172000232200301000326800395600438600516000602000645000713800Cooling Capacitykcal/h851400894400980400106640011008001290000141040015136001702800
KW200270350380460510600700750830KW99010401140124012801500164017601980
Input PowerKW44607484102112130150160180Input PowerKW206218236254262302334354398
Max CurrentA405367738997109126137153Max CurrentA354374406436450520576612490
Power Source3PH~380V/415V/480V~50HZ/60HZ(3PH~200V/220V   50HZ/60HZ)Power Source3PH~380V/415V/480V~50HZ/60HZ(3PH~200V/220V   50HZ/60HZ)
RefrigerantTypeR22 (R134a / R407c / R404A)RefrigerantTypeR22 (R134a / R407c / R404A)
Chargekg17×222×227×233×238×243×250×255×260×266×2Chargekg82×288×294×2100×2110×2121×2132×2143×2165×2
ControlThermostatic expansion valveControlThermostatic expansion valve
CompressorTypeSemi-hermetic screwCompressorTypeSemi-hermetic screw
PowerKW22×230×237×242×251×256×265×275×280×290×2PowerKW103×2109×2118×2127×2131×2151×2167×2177×2199×2
Start modeY-△Start modeY-△
Capacity Control%0-33-66-1000-25-50-75-100Capacity control%0-25-50-75-100
EvaporatorTypeShell and tube (SS plate heat exchanger)EvaporatorTypeShell and tube (SS plate heat exchanger)
Chilled Waterm3/h344660657988103120120143Chilled waterm³/h170179196213220258282303340
Water PressureKPa35353538404242454543Water pressureKPa404143454545454345
Pipe ConnectionInch4″4″4″5″5″6″6″6″8″8″Pipe connectionInch8″8″8″8″10″10″10″12″12″
CondenserTypeWater cooled type shell and tubeCondenserTypeWater cooled type shell and tube
Cooling Waterm3/h4257738097107126146156174Cooling waterm³/h206216237257265310339364409
Water PressureKPa42424243424343454545Water pressureKPa484546484648484547
Pipe ConnectionInch4″4″4″5″6″4″×24″×24″×25″×25″×2Pipe connectionInch5″×25″×26″×26″×26″×28″×28″×210″×210″×2
Safety protection devicesInner thermostat for compressor motor, unit overload relay,high and low pressure switch, freeze protection thermostat, reverse phase protection relay, discharge gas thermostat, flow switchSafety Protection DevicesInner thermostat for compressor motor, unit overload relay,high and low pressure switch, freeze protection thermostat, reverse phase protection relay, discharge gas thermostat, flow switch
DimensionLengthmm2750280028002950295031503480348034803650DimensionLengthmm365036503750375042304230435043504420
Widthmm7507807808108108508758758951120Widthmm112012201300145013801480145015601650
Heightmm1650165016501650175017501850185018501950Heightmm195019502100215021502250225023002450
Net weightkg1650180018502200245026502800280034503750Net weightkg395041004450470050005250550057506000
Running weightkg1950218022402660296032003380358041604360Running weightkg476047705270546058006100640066806970
The above specifications are according to the following design conditions:
1, Chilled water inlet/outlet temperature 12℃/7℃.
2, Cooling water inlet/outlet temperature 25℃/30℃.
We reserve the right to modify the specifications without further notice.
The above specifications are according to the following design conditions:
1, Chilled water inlet/outlet temperature 12℃/7℃.
2, Cooling water inlet/outlet temperature 25℃/30℃.
We reserve the right to modify the specifications without further notice.
Screw Chiller Technical Specifications
Model                                                     ItemsTPAS-80ASHTPAS-110ASHTPAS-140ASHTPAS-160ASHTPAS-190ASHTPAS-210ASHTPAS-250ASHTPAS-290ASHTPAS-310ASHTPAS-340ASHTPAS-400ASHTPAS-430ASH
Cooling capacitykcal/h6880094600122980135020164260180600212420245100266600292400348300369800
KW80110143157191210247285310340405430
Input powerKW32.543.654.759.773.679.688.2101.2112.8123.8145155
Max CurrentA577595103125135151173191211246263
Power source3PH~380V/415V/480V~50HZ/60HZ(3PH~200V/220V   50HZ/60HZ)
RefrigerantTypeR22(R134a/R407c/R404A)
Chargekg2128354249566370778498112
ControlThermostatic expansion valve
CompressorTypeSemi-hermetic screw
PowerKW3040505567738295104115134142
Start modeY-△
Capacity control%0-33-66-1000-25-50-75-100
EvaporatorTypeShell and tube (SS plate heat exchanger)
Chilled waterm³/h13.818.924.627.032.836.142.549.053.358.470.074.0
Water pressureKPa323235384242454343434143
Pipe connectionInch3″3″3″4″4″4″4″4″5″5″6″6″
CondenserTypeAir cooled type high efficiency finned cooper tube
FanTypem³/hBig volume & low noise axil fan
PowerKW0.42×60.6×60.78×60.78×61.1×61.1×60.78×80.78×81.1×81.1×81.1×101.1×12
Air volumem³/h30000400005000060000700008000090000100000110000116000145000165000
                   Safety protection devicesInner thermostat for compressor motor, unit overload relay,high and low pressure switch, freeze protection thermostat, reverse phase protection relay, discharge gas thermostat, flow switch
DimensionLengthmm220023502600260026502650340034003800380048005800
Widthmm115013501500150019001900170017001900190019001900
Heightmm198020002100210022002200220022002200220022002200
Net weightkg110013001600190022002350255028002850295032003550
Running weightkg130015001840220025302700295032503350356036503950
The above specifications are according to the following design conditions:
1, Chilled water inlet/outlet temperature 12℃/7℃.
2, Cooling air inlet/outlet temperature 30℃/38℃.
We reserve the right to modify the specifications without further notice.
Screw Chiller Technical Specifications
Model                                                          ItemsTPAS-160ADHTPAS-220ADHTPAS-285ADHTPAS-315ADHTPAS-380ADHTPAS-420ADHTPAS-495ADHTPAS-570ADHTPAS-620ADHTPAS-680ADHTPAS-810ADHTPAS-860ADH
Cooling capacitykcal/h137600189200245960270040328520361200424840490200533200584800696600739600
KW160220286314382420494570620680810860
Input powerKW64.786.6106.2118.8145159.2177.2207.6225.6247.6290310.4
Max CurrentA114149185205250274308358388428500533
Power Source3PH~380V/415V/480V~50HZ/60HZ(3PH~200V/220V   50HZ/60HZ)
RefrigerantTypeR22(R134a/R407c/R404A)
Chargekg21×228×235×242×249×256×263×270×277×284×298×2112×2
ControlThermostatic expansion valve
CompressorTypeSemi-hermetic screw
PowerKW30×240×250×255×267×273×282×295×2104×2115×2134×2142×2
Start modeY-△
Capacity control%0-33-66-1000-25-50-75-100
EvaporatorTypeShell and tube (SS plate heat exchanger)
Chilled waterm³/h27.537.849.15465.772.28598106.6117139.3147.9
Water pressureKPa323235384242454343434143
Pipe connectionInch4″4″4″5″6″6″6″6″8″8″8″10″
CondenserTypeAir cooled type high efficiency finned cooper tube
FanTypem³/hBig volume & low noise axil fan
PowerKW0.78×61.1×60.78×81.1×81.1×101.1×121.1×121.1×161.1×161.1×161.1×201.1×24
Air volumem³/h6000080000100000116000145000165000180000205000225000242000285000325000
Safety protection devicesInner thermostat for compressor motor, unit overload relay, high and low pressure switch, freeze protection thermostat, reverse phase protection relay, discharge gas thermostat, flow switch
DimensionLengthmm2600265034003800480058005800780078008000980011600
Widthmm150019001700190019001900220020002200220022002200
Heightmm210022002200220022002200230022502250230023502350
Net weightkg205025202980318034203730395043304650493054505850
Running weightkg236028703420369037804180438046504920536058306530
The above specifications are according to the following design conditions:
1, Chilled water inlet/outlet temperature 12℃/7℃.
2, Cooling air inlet/outlet temperature 30℃/38℃.
We reserve the right to modify the specifications without further notice.

Why TopChiller is Your Reliable Screw Chiller Manufacturer and Supplier In China?

Experienced In Screw Chiller
Over 20 years rich experience of screw chiller manufacturing offering a complete of screw chiller designs and models to meet your requirements.
Full Solutions Provider
Our services including: screw chiller requirement communication, analysis, designing, manufacturing, quality controller, delivery, Keep advising not just manufacturing.
Reduce Your Costs
With rich experience of making screw chillers for your industrial applications can help to work out the correct screw chiller suitable for your needs,our high quality screw chillers will save your costs.
Top Quality Screw Chiller
We always take good care of your screw chiller order from design,raw material purchasing,manufactured,testing and delivery to make sure all screw chiller making process are under control.
Global Screw Chiller Shipment
No matter which country you are from, just tell your nearest seaport or airport name, we can arrange your screw chiller order at fastest shipping even can do door to door delivery.
No Worries Service
World business trip/screw chiller related exhibitions&fairs 2-3 times yearly can settle face to face meeting, 24*7*365 online service with fast feedback.

Other Chiller Types Related With Screw Chiller

Screw Chiller: The Ultimate FAQ Guide

This guide has all information you’re looking for about screw chillers.

It covers everything, from components, working principle, features, classification criteria and installation, just to mention a few.

Keep reading this guide to learn more.

What is a Screw Chiller?

Screw chillers are industrial types of cooling systems that use a screw type of compressor.

You will compress the refrigerant using the screw compressor as one of the process leading to fluid chilling.

Screw chiller

Screw chiller

How Do the Screw Compressors in Screw Chillers Work?

 Twin screw compressor

Twin screw compressor

Screw compressors have both female and male parts or rotors which rely on a timing gear to produce compression.

Apart from that, the male and female rotors also work in conjunction with one another to produce compression.

You will have the male rotor which connects directly to the motor which act as the driving rotor.

On the other hand, the female driver will be the part that receives the driving action (it will be driven).

As the male and female rotors rotate, the volume within their grooves will decrease and compresses the refrigerant.

The refrigerant fluid will flow into the compressor through the inlet forcing the compressor to reduce the tooth space.

It will force the seal line of the scroll compressor to move in the discharge port direction as the compression continues.

Finally, the refrigerant will leave the compressor when the pressure is too high and the seal line is at the discharge point.

How Many Types of Screw Compressors can You Use in the Screw Chillers?

You can choose from the list of two types of scroll compressors to use in your screw chilling applications.

Here are the two types of screw compressors that you can choose from.

  • Single Screw Compressor
  • Twin Screw Compressor

What is the Difference Between the Single Screw Compressor and Twin-Screw Compressors?

You can either choose to use the single screw compressor or the twin screw compressor depending on your application requirements.

Here is a comparison between the two main types of screw compressors.

· Single Screw Compressors

In the single screw compressor, you will find a main rotor and two gate rotors.

It uses the main rotor as the driving rotor in conjunction with the gate rotor thus producing a compression effect.

· Twin Screw Compressors

Twin screw compressors have helical grooved twin rotors which help in producing the compression effect.

As the two helical grooved rotors mesh, it will force the refrigerant to compress and flow in the other direction.

What are the Main Parts of the Screw Compressors?

Screw compressors are positive displacement machines that have various working chambers and parts.

Here are the main components of the screw chillers that you need to pay close attention to.

· Rotor

It comes complete with two main rotors which include the smaller male rotors and the bigger female rotors.

The female rotor has a connection to the prime mover which basically rotates the male rotor.

· Suction Valve

The suction valve is responsible for controlling the movement of the gases within the scroll compressors.

You can either use electrical power or the pneumatic power to control the movement of gases.

· Electrical Motor (Prime Mover)

This is the main source of power for the screw chillers that comes in various forms depending on the design.

It has varying power transmission systems that will vary depending on the design or the model of the screw compressor.

· Lubricant Section

This is the part of the screw compressor that lubricates the moving parts and reduces the effects of friction.

It comprises of the oil or lubricant tank, oil separators, and oil filters.

How Does an Air-Cooled Screw Chiller Compare to a Water-Cooled Screw Chiller?

Well, among the different types of screw chillers, we have the air-cooled screw chiller and water-cooled screw chillers.

Air cooled screw chiller

 Air cooled screw chiller

Water-cooled screw chiller

Water-cooled screw chiller

The working principles of the air-cooled and water-cooled screw chillers are similar and produce the same chilling effect.

Apart from that, they have the same components that help in the chilling of different equipment.

The main difference is the fact that air-cooled chillers use air as the main chilling agent and are often noisy.

On the other hand, water-cooled chillers use water as the main chilling agent and are often quiet.

You will also install the air-cooled chiller outside the building and the water-cooled chillers inside a mechanical room.

What are the Main Components of the Screw Chillers?

Successful operations of the screw chillers to produce a chilling effect requires a combination of efforts from different components.

Here are the main components of the screw chillers that you ought to pay close attention to.

· Compressor

In this case, the main compressor is the screw compressor which is responsible for compressing the refrigerant and increasing pressure.

There are two types of screw compressors which include the single-screw compressor and twin-screw compressor.

· Evaporators

This is the part of the screw chiller which will collect the heat that comes from the system.

It consists of different pipes that contain the liquid that delivers the hot water and heat from the system.

· Condensers

The condenser is responsible for eliminating the heat which the refrigerant collects from the evaporators in the screw chillers.

It has a system that increases the residence time of the refrigerant as it condenses the refrigerant to eliminate heat.

· Expansion Valves

In the expansion valves, there are various components that will assist in controlling the amount of refrigerant.

It will help in reducing the pressure of the refrigerant and supply it in various quantities towards the screw compressors.

· Control Unit

You will use the control unit to configure, program and even monitor every move that occurs within the screw chillers.

It has systems that allows you to connect to the screw chilling system even from a remote location.

· Lubrication System

You will depend on the lubrication system to lubricate the moving parts of the screw chillers to reduce the effects of friction.

It has different parts such as a lubrication tank, and filters that are capable of providing sufficient and clean oil.

What is the Working Principle of a Screw Chiller?

You will have to set the screw chillers according to the right chilling specification that you need.

As soon as you press start on the machine, the refrigerant will move from the refrigerant cylinder to the compressor.

In the screw chillers, we have the screw compressors which are responsible for the compression of the refrigerant.

It will compress the refrigerant and increase the pressure as well as the speed of movement.

With that velocity, the refrigerant will flow from the compressor through pipes and delivery systems straight to the evaporator.

While in the evaporator, the refrigerant will collect the heat that comes from the system your intent to cool down,

The evaporator has a series of pipes that will deliver the heat from the system in pipes that contain flowing water.

The refrigerant will collect the heat from the water and leave them cool while the refrigerant heats up changing into gas.

Loaded with enough heat and pressure, the refrigerant will flow from the evaporator all the way to the condenser.

While in the condenser, the refrigerant will encounter cool water or air which will eliminate the heat it holds.

At the same time, it will change form from gas into a liquid after losing the heat through the condensation process.

The air or water will eliminate the heat and dispose of it properly as the liquid refrigerant moves to the expansion valve.

At the expansion valve, the liquid refrigerant will go through a process of pressure reduction.

It will flow at a slower speed as the expansion valve delivers the liquid refrigerant in bits back to the compressor.

What is the Best Place for Locating a Screw Chiller?

You can locate the screw chillers at any part of the production facility depending on the type of screw chiller.

Water-cooled screw chillers are best located in a mechanical room away from the weather elements that can cause damages.

On the other hand, you will locate the air chillers outside the production facility where it has proper access to enough air.

It is also a very strong machine that can withstand the weather elements and survive for a very long time.

It also produces a lot of noise thus locating it outside in an open space will help in reducing noise irritation.

You can also locate the air-cooled screw chillers in a mechanical room with plenty of ventilation to provide enough air.

What are the main Quality Specifications for the Screw Chillers?

Screw chillers have particular quality specifications that assure you of very high-quality, safe, and durable screw chiller machines.

You must ensure that your screw chillers adhere to all the quality specifications such as:

  • AHRI Quality Certifications which certifies the machine according to the coefficient of performance.
  • DIN EN Quality Certifications such as DIN EN ISO 9001:2015 for quality management systems.
  • CE Quality Certifications for labeling certifications such as EU regulation no. 765/2008.
  • ELT Quality Certifications for the North American Market Certifications
  • RoHS Quality Certifications according to the 2011/65/EU
  • ANSI Quality Certification such as ANSI/ASHRAE

Which Industrial Applications Employ the Use of the Screw Chiller?

You can use the screw chillers in different types of industrial applications to cool different types of equipment.

Here are some of the industrial applications where the screw chillers come in handy.

· Construction Industry

You can use the screw chillers in the construction industry to cool different types of equipment.

For instance, you can use the screw chillers to change concrete molecular structures or supply chilled water for mixing concrete.

· Food Industry

You can also use the screw chillers in the food and beverage industry for a number of chilling functions.

It will help in cooling food faster before you fill the food in different packages for storage or subsequent distribution.

· Central Air Conditioning HVAC Systems

You can use screw chillers in big factories since they have higher chilling effects than other chillers such as scroll chillers.

It will come in handy in ink printing plants, chemical plants, and automobile factories to chill different types of applications.

What are the Benefits of Using the Screw Chillers?

Screw chillers are one of the best types of chilling systems that you can use in the cooling of different machines.

Here are some of the advantages of using screw chillers in different cooling applications.

· Occupies Less Space

Screw chillers are smaller in size and will occupy less installation space in residential and commercial buildings.

They have smaller components that occupy less space thus making them smaller even though the effect is great.

· High-Efficiency Levels

You will also use the screw chillers to cool different equipment efficiently according to the capacity of the industrial application.

You have the freedom of customizing different sizes of screw chillers that can comfortably cool different building installations.

· Energy Efficient

You will experience great energy efficiency by using screw chillers as they use very little energy to produce proper results.

They have proper control on the optimal levels of cooling and never go beyond specific cooling capacities thus conserving energy.

· Emits Minimal Noise

The main type of screw chiller is the water-cooled screw chiller which does not make a lot of noise.

In addition to that, you will house it inside a mechanical room which will help in absorbing the noise.

· Requires Minimal Maintenance Work

You will spend less time and money in the process of maintaining the screw chillers because it requires minimal maintenance.

Screw chillers have fewer parts that’s are very strong and durable that will take ages before they are up for maintenance.

Are There Any Disadvantages of Using the Screw Chillers?

Unfortunately, screw chillers have some limitations despite the numerous benefits that come with it.

Here are some of the limitations that you might experience using the screw chillers.

· High Cost of Purchase

You will spend a lot in the purchase of the screw chillers as they are quite expensive and have high-quality materials.

The cost of manufacturing the scroll chillers is high because it uses very high-quality materials that are not cheap.

· Not Easy to Repair

Since the scroll chillers are hermetic systems, you might go through a difficult time trying to repair it.

You will have to purchase original parts for performing repairs which are often quite expensive.

· Difficult to Disassemble

In addition to that, you will find a lot of difficulty in bringing the hermetic screw chillers apart.

You will have to hire professionals or install the clean in place system which is often costly to acquire.

What is the Difference Between the Screw Chillers and the Scroll Chillers?

Chillers have different types of compressors which help in the compression of different types of refrigerants.

Among the chiller compressors that you can choose from include the scroll compressors and the screw compressors.

A screw chiller is, therefore, a chiller that uses the screw compressor to compress the refrigerant and increase pressure.

On the other hand, scroll chillers use the scroll compressor to compress and increase the pressure of the refrigerants.

 Scroll chiller

 Scroll chiller

What are Some of the Features of the Screw Chillers?

Different types of screw chillers come complete with common features which you must pay very close attention to.

Here are the main features that you will find in most of the screw chillers.

· Different Components

Screw chillers have various components such as unit compressors that have semi-closed screw compressors.

It also has electronically controlled components with heat exchangers and high-quality copper tube condensers and evaporators.

· Security Features

You must also ensure that it has security features that will help in keeping the machine as well as the operators safe.

· Stable Performance

Your screw chillers must also exhibit stable performance with very low noise and high levels of durability.

Most of them have very simple operations with an LCD display on the control panel for proper programming and monitoring.

· Open and Attractive Appearance

It has a very simple, beautiful and open structure that you can easily install into the production facility.

· Flexible Operations

You can also enjoy the flexibility of operating the screw chillers as you can change compressors accordingly.

Implying that you will have to program the machine and the screw compressors to function according to the production specifications.

How Do You Maintain the Screw Compressor Unit of the Screw Chillers?

When you are maintaining the screw chiller units, you need to focus purely on the main parts.

In the screw chiller compressor unit, we have for main parts including:

  • Air Suction Valve
  • Oil Components
  • Air End
  • Electric Motor

Since the screw chillers have very few parts, you don’t have to perform a lot of maintenance on the machine.

In that case, all you have to do is disassemble the parts and clean them very well to eliminate the debris.

The oil components have oil tanks and oil filter systems which you need to clean on a regular basis.

Apart from that, you must also fill the tanks regularly and ensure that the reservoirs are up to the right limits,

In addition to that, you must maintain proper lubrication of the moving parts and replace the broken parts regularly.

Finally, you should treat the refrigerant and any fluids on the screw chillers to eliminate the possibility of fouling the system.

What is the Difference Between the Screw Chillers and the Centrifugal Chillers?

Screw chillers and centrifugal chillers are types of chillers that you can use in different industrial applications to cool equipment.

Despite the similarity in function, screw chillers and centrifugal chillers differ when it comes to the type of compressor.

Screw chillers have the screw compressors while the centrifugal chillers come complete with the centrifugal compressors.

Centrifugal chillers are the most efficient option that you can use when you intend to run the chiller at full load.

 Centrifugal chiller

Centrifugal chiller

It uses the centrifugal force which helps in the compression of the refrigerant to produce enough pressure and speed.

On the other hand, you will use the screw chillers to squeeze the refrigerant between two rotating helical screws.

How do you Choose the Right Type of Screw Chillers?

Since we have different environmental and industrial aspects, you need to choose a screw chiller that will fit your operation requirements.

Here is a step by step process that you can follow to assist you in choosing the perfect screw chiller.

Step One: Determine Heat Load

You must have knowledge on the specific heat load you expect to be chilling using the screw chillers.

With this knowledge, you will be able to choose the right type and size of screw chillers to handle the whole process.

Step Two: Determine Coolant Type

In this case, you will choose between the air-cooled screw chiller or the water-cooled screw chiller.

In other words, you will choose the coolant type that will provide you the perfect flow rates to cool the target temperatures.

Step Three: Know Installation Environment

You must also have proper knowledge on the environment where you will install the screw chillers.

This information will help in getting the right size of screw chillers that you need and the accessories to fit.

Step Four: Check Performance Curves

At this point, you will look at the chiller as well as the pump performance curves among different models.

You should settle for the chillers that have the best types of chilling and pump performances to give the best results.

You will complete the process by selecting the best type of screw chiller to suit your application requirements.

How Much Does a Screw Chiller Cost?

You will purchase the screw chillers at various prices depending on the different types of screw chillers.

The prices vary due to the different sizes of the screw chillers in the market where larger screw chillers cost more.

Apart from that, you will also realize that the better the quality of screw chillers the higher the cost.

In some instances, the minimum order quantity also makes a difference in price as you might have a discount.

You will spend between 3000 and 50,000 US dollars to acquire a screw chiller depending on the type of screw chiller.

What are the main Technological Trends and Alternatives for the Screw Chillers?

Well, there are a lot of improvements in terms of developing the screw chillers for better performance.

Here are some of the technological alternatives and trends that you should consider looking at.

· Increased Energy Efficiency

In a bid to reduce cost of energy, there are new technological advancements in the industry such as variable frequency drives.

As the cooling load decreases, the VFD will also reduce the energy output and increase when cooling load increases.

Om that note, you will be able to save a lot of energy that could be even when the cooling load is low.

·         Gas Driven Systems

You can opt for gas driven screw chillers especially in areas where the cost of power is very high.

Despite that alternative, you should use the gas-driven screw chillers in areas where electric power is a problem.

· 2-Phase Turbines

You can replace the expansion valve using the 2-phase turbines in very large screw chiller applications.

This will help in maintaining the energy potential that is often lost with the use of an expansion valve.

· Larger Sizes of Screw Chillers

You will also replace the small types of screw chillers with the modern large size screw chillers.

The large size of screw chillers will not only increase the capacity of chiller but increase the overall efficiency.

Which Factors Do You Look at When Calculating the Life Cycle Cost of the Screw Chillers?

You should do a proper calculation to know just how long you will take by using the screw chiller.

In other words, you should know the durability of the screw chillers by calculating the life cycle cost considerations.

Here are the main factors that you should look at when calculating the life cycle cost of screw chillers.

· Capital Costs

Here, you will look at the final cost of purchasing and installing the screw chillers with costs such as electric bills.

· Operating Costs

You will look at the amount of money you will spend in paying for energy, treatment and overall maintenance.

· Programmed Servicing and Maintenance Cost

In this case, you will look at the amount of money you will spend in servicing and maintaining the screw chillers.

How Does a Screw Chiller and a Reciprocating Chiller Compare?

Well, the main difference between the screw chillers and the reciprocating chillers is the type of compressors.

Reciprocating chillers have reciprocating compressors while the screw chillers have the screw type of compressors.

Despite that difference, most of the factors such as working principles are similar for both types of chillers.

You can also have air- and water-cooled screw or reciprocating chillers for the purpose of cooling different applications.

What are Some of the Faults that You will Experience with the Screw Chiller?

Screw chillers also work efficiently up to a point where it begins developing a few problems.

You can identify the issue affecting the machine through proper troubleshooting procedures.

Here are some of the problems that you might identify with the screw chillers.

· High- and Low-Pressure Alarms

High-pressure alarms go off when the pressure within the screw chillers are very high than usual.

Low-pressure alarms will also go off when the pressure within the screw chiller system are low.

You can sort this out through proper control of the pressure systems from the control panel.

· Compressor Overheat

You might also experience issues with very high temperatures within the compressor systems.

In such a case, you will activate the thermal protection module to help you in controlling the temperatures well.

At TopChiller, we design and manufacture a range of chiller systems such as air chillers and water chillers.

Contact us today for all your screw chiller needs.

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