Heavy Duty Process Cooling Units remove heat from industrial production equipment, process fluids, and machine-side cooling circuits. Unlike standard commercial HVAC systems, a process cooling unit is engineered specifically around the unique thermal and hydraulic demands of your production line-delivering up to 20% higher operational efficiency and precise temperature stability under continuous operation.

Key Industrial Applications

Plastic Processing: Injection molding, plastic extrusion, blow molding (precise mold cooling reduces cycle times by up to 15-20%).

Metalworking & Machining: Die casting, CNC machinery spindles, laser cutting/welding, EDM equipment.

Industrial Systems: Hydraulic power packs, process tanks, chemical reactors, centralized plant cooling loops.

When Is a Heavy Duty Process Cooling Unit Required?

A dedicated industrial unit is essential when cooling is directly tied to production output and equipment uptime:

Continuous 24/7 manufacturing environments.

High thermal loads requiring exact temperature control (+/-0.5 deg C to +/-1.0 deg C).

High hydraulic resistance requiring high-pressure fluid delivery.

Centralized cooling across multiple production lines.

Replacing undersized or unreliable commercial chillers.

Technical Specifications & Selection Parameters

Parameter	Specification & Available Options
Cooling Capacity	Custom engineered from 5 kW to 1000+ kW (1.4 to 285+ Tons)
Eco-Friendly Refrigerants	R410A, R134a, R407C, R32, R513A (Non-Ozone Depleting)
Compressor Types	Hermetic Scroll, Semi-Hermetic Screw, or Digital Inverter
Condenser Type	Air-Cooled (Finned Tube) or Water-Cooled (Shell & Tube / Plate)
Fluid Temp Range	+5 deg C to +35 deg C (Low-temp glycol units down to -20 deg C)
Flow Rate & Pressure	Stainless steel centrifugal pumps (3.0 Bar to 6.0+ Bar head pressure)
Coolant Compatibility	Water, Water/Glycol mixtures (e.g., 30% Propylene Glycol), Process Oil
Standards & Approvals	CE Compliant, ISO 9001:2015, ASME / PED Pressure Vessel Standards
Control Interface	Microprocessor / PLC with Modbus RS485, Profinet, or Ethernet IP
Electrical Supply	Customized to site requirements (e.g., 380V/3Ph/50Hz, 460V/3Ph/60Hz)

Air-Cooled vs. Water-Cooled Configurations

Air-Cooled Units: Reject heat into the surrounding air via heavy-duty axial fans. Ideal for facilities without an existing cooling tower, outdoor installations, or areas with restricted water supply.

Water-Cooled Units: Transfer heat into a secondary cooling-water circuit (such as a cooling tower). Best suited for indoor plant rooms, high-ambient temperature regions, or facilities with established central cooling water.

Quality Control & Factory Testing

Pressure & Leak Testing: Nitrogen pressure holding and helium leak detection across all refrigeration circuits and brazed joints.

Electrical Safety Inspection: Ground continuity checks, insulation resistance tests, and safety interlock verification.

Full Load Run Testing: Live performance testing under real heat-load conditions to verify compressor amp draw, expansion valve response, pump head pressure, and control accuracy.

Documentation Package: Factory Test Report, CE Declaration of Conformity, Wiring Diagrams, General Arrangement Drawings, and Operation Manuals.

Common Selection Mistakes to Avoid

Sizing by Horsepower (HP) Alone: HP does not account for actual cooling output at your required fluid delivery temperature.

Ignoring Pump Pressure: A chiller may cool the fluid, but an undersized pump will fail to push adequate flow through restrictive machine passages.

Overlooking Glycol Derating: Adding glycol lowers the fluid's heat transfer capacity and increases pump load-this must be factored into thermal sizing.

Neglecting Maximum Ambient Temps: Air-cooled systems sized for 25 deg C ambient conditions will trip on high-pressure alarms when summer heat reaches 40 deg C.

FAQ

Q: What information do I need to provide for a technical quotation?

A: To receive an accurate quote, please provide your equipment application, required supply/return fluid temperatures, required flow rate or pump pressure, coolant type, max summer ambient temperature, and site electrical voltage.

Q: Why is process cooling different from standard commercial air conditioning?

A: Process cooling is designed for heavy-duty, year-round operation directly connected to industrial machinery. It maintains strict fluid temperatures under variable heat loads and provides much higher pump pressures than comfort HVAC equipment.

Q: How does adding glycol affect process chiller selection?

A: Glycol prevents freezing in low-temperature applications, but it reduces heat transfer efficiency and increases hydraulic resistance compared to pure water. Sizing must be adjusted to account for higher fluid density and viscosity.

Q: Can a single process cooling unit serve multiple production machines?

A: Yes. A centralized process cooling system can feed multiple machines provided the total combined cooling load, overall flow rate, and maximum hydraulic resistance across the entire piping loop are properly calculated.

Q: What technical documentation is included with the equipment?

A: Each cooling unit ships with a comprehensive documentation package including a Factory Test Report, CE Declaration of Conformity, Electrical Schematics, General Arrangement Drawing, Spare Parts List, and Operation & Maintenance Manual.

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