100 HP Water Cooled Screw Chiller for plastic molding machines

100 HP Water Cooled Screw Chiller for plastic molding machines 

Industrial chillers are essential auxiliary equipment in plastic production, and water-cooled screw chillers are widely used in plastic factories.  In the plastics industry, water-cooled screw chillers are primarily used for mold cooling and process temperature control in processes such as injection molding and extrusion. Their core function is to precisely regulate mold temperature through circulating cooling water, ensuring the molding quality and production efficiency of plastic products.
In injection molding, the chiller controls the cooling rate and fluidity of the plastic by cooling the mold, preventing shrinkage, deformation, or surface defects caused by excessive temperature, or insufficient filling and bubbles caused by insufficient temperature. This improves surface finish, dimensional stability, and ease of demolding, shortens the molding cycle, and reduces the scrap rate.
In the extrusion process, the chiller is used to cool the extrusion mold or traction equipment, ensuring rapid solidification of the plastic material and preventing material degradation or uneven thickness due to overheating, thus improving production continuity and product consistency.
This 100 HP water-cooled chiller unit is equipped with a Hanbell twin-screw compressor, offering stable operation and high reliability. The compressor can adjust its load according to different demands, making it very energy-efficient.  Furthermore, a fault in one system does not affect the normal operation of the other system. It is suitable for the continuous cooling needs of large-scale plastic processing equipment.

100 HP Water Cooled Screw Chiller Product Information

Temperature control 5ºC to 35ºC
High quality Shell and tube evaporator and condenser
Bizer or Hanbell semi-hermetic screw compressor
Optional refrigerant R134a,R407c and R404a, R22.
Safety protection devices of whole screw chiller

Siemens PLC controller system With HDMI Touch Screen
All models and cooling capacity available Temperature control 5℃ to 35℃. Lower temperature water cooled screw chiller can be customized.

Water-cooled screw chiller advantage

Water-cooled screw chillers utilize screw compressors as their core component, combined with a water-cooling system, offering significant advantages in energy efficiency, stability, and adaptability.
High Efficiency, Energy Saving, and Environmental Performance: The screw compressor features precise rotor meshing and high volumetric efficiency, with a coefficient of performance (COP) typically exceeding 4.0, reducing energy consumption by 15%-20% compared to piston-type units of the same specifications. Some models achieve an 11%-15% increase in energy efficiency under variable frequency drive; the water-cooling method utilizes the high specific heat capacity of water, allowing the condensation temperature to be controlled at around 40℃, more than 10℃ lower than air-cooled units.  For every 1℃ decrease in condensation temperature, efficiency increases by approximately 3%, making the energy-saving advantage more pronounced in high-temperature environments;  it also uses environmentally friendly refrigerants such as R134a, R513A, and R404A, with low global warming potential (GWP), complying with environmental regulations.
Stable and Reliable Operation and Long Lifespan: The screw compressor has a simple structure and fewer moving parts, with an average mean time between failures (MTBF) exceeding 8000 hours. The outlet water temperature fluctuation is controlled within ±0.5℃, superior to the ±1.5℃ of piston-type units, ensuring constant temperature for processes; the unit has a design life of 15-20 years, 5-8 years longer than piston-type units, and can maintain more than 80% of its cooling capacity after long-term use, reducing replacement frequency.
Flexible Capacity Adjustment and Adaptability:  Stepless capacity adjustment from 10%-100% is achieved through slide valve control, adapting to load changes and avoiding energy waste. Some models support variable frequency drive, maintaining a high COP value under partial load; it has a wide range of applications, with cooling capacities covering 100kW to 3000kW, providing outlet water temperatures from -40℃ to 30℃, suitable for various scenarios such as central air conditioning, industrial refrigeration, chemical industry, and food processing.
Compact Structure and Low Noise Design: The screw compressor has a compact structure, reducing the footprint by 30%-40% compared to piston-type units with the same cooling capacity, making installation convenient; the operating noise is below 75 decibels, and can be further reduced through sound insulation design, suitable for places requiring low noise levels such as hospitals and hotels. Easy Maintenance and Safety Protection:  With fewer vulnerable parts, the main maintenance work involves only periodically replacing the lubricating oil and filters, with a maintenance cycle of up to 2000 hours. Each maintenance session takes no more than 2 hours, saving labor and downtime compared to piston-type units.  It integrates multiple protection mechanisms, including high and low pressure protection, anti-freezing protection, and phase loss protection. Since 2019, a low oil level protection function has been added, further enhancing operational safety.

Well Known Brand Compressor

• Unit adopts Germany BITZER or Taiwan HANBELL brand semi-hermetic screw compressor. The latest 5 to 6 patented screw rotor profile with excellent efficiency.
• Adjustable infinite or closely stepped capacity control, features energy efficient, stable and quiet running. Compressor start-up in stages, minimize the impact to electricity. Steady and safe running with low vibration.
• Most advanced patented highest precision manufacturing process.
• Built-in full intelligent monitoring and protection including thermal motor temperature monitoring, phase sequence monitoring, manual reset lock-out, oil temperature sensor.

Microprogramming Control System

• LCD touch screen interface. Industrial Siemens PLC centralized control combined with compressor capacity control system, precisely monitor. 
• Integrated protection for low temperature, high/low pressure, anti-freezing, phase missing, anti-phase, overload, motor over temperature, oil differential, flow switch, start up latency.
• Optional operation language, menu leading, unit running state easy to adjust.

A variety of refrigerants and power source are available

• Standard design charged R22 CFC Free R407C, R410A, R404A, R134A for option.
• 380V-415V/50Hz 3pH for standard design. 380V~415V, 50HZ/60HZ, different design on customers' request.

Easy installation, quality is assured

• Compact structure, less space demand and light in weight, easy for transport and installation.
• Completely wired, inspected and tested pre-delivery, saving installation time and cost.

If you are looking for good quality water cooled screw chiller supplier? Please contact us to get an instant price.

Screw type chiller Application

As Screw type chiller usually with large cooling capacity. It's widely used in plastic industry, concrete mixing， HAVC system. The water cooled screw chiller has compact structure, stable operation, stepless adjustment of cooling capacity, good energy saving, and few wearing parts. Suitable for high-rise buildings, hotels, restaurants, hospitals, scientific research institutes and other large and medium-sized air-conditioning and refrigeration systems with a cooling capacity of 580~1163kW.

100 HP water cooled screw products Specification 

Shipping And Delivery

Delivery time of the Screw Chiller is 20-30 Working Days. 

Shipping by sea with Plywood Package or fill packing in the container.

FAQ

Q1: Could you help us to recommend the model for our project?

A1: Yes, we have engineer to check the details and make the scheme for you. Based on the following:

1)Cooling capacity;

2)chilled water inlet and outlet temperature

3)chilled water flow

4) Refrigerant;

5) Ambient temperature;

6)Voltage;

7) Be used for what industry?

8)Any other special requirements?

Q2: How to ensure your product with good quality?

A2: All our products with CE certificate. And use the well-know brand accessories, such as copeland, danfoss,Hanbell, Bitzer compressor Emerson expansion Valve, Siemens controller.

also can be customized. All OUMAL Chillers are factory tested under load conditions to ensure good quality and easy installation for users

Q3: What's the warranty?

A3: 15 months warranty for free if confirmed by both side damage in the quality reason.

Q4: What's your payment term?

A4: We accept T/T, LC, Western Union, etc. Normally, 30% deposit for production, 70% balance before shipment.

Q5: Are you a manufacturer?

A5: Yes, we have more than 15 years in water chiller business. Also have patent on the water chiller appearance.

The control box design make the unit safety and stably.

Q6: How can i Place an order?

A6: Click Below to fill the table or Call 0086 15112554736.