China Chiller Unit Manufacturers Suppliers Factory - Custom Chiller Unit Wholesale

Industrial Chiller Unit

Industrial chiller units remove heat from continuous industrial processes or machinery by circulating temperature-controlled chilled water or a water-glycol mixture through a closed-loop refrigeration circuit.

Target Customers: Laser equipment OEMs, CNC machine builders, plastic injection molding integrators, medical device engineers, and industrial facility managers.

Core Value: Delivers fluid temperature stability (±0.1 °C to ±0.5 °C) under fluctuating heat loads, eliminating thermal deformation of process tooling, protecting sensitive optics/electronics, and enabling 24/7 continuous duty cycles.

Portable Chiller Unit
The portable chiller unit is a lightweight and movable small refrigeration equipment. Its core consists of a small fully hermetic compressor, compact condenser, micro throttling element and simple
Industrial Chiller Unit
The industrial chiller units is a large-scale refrigeration complete set of equipment specially designed for industrial production process cooling. Its core consists of an industrial-grade screw
Stand Alone Chiller Unit
The stand alone chiller unit is a modular refrigeration equipment with a complete independent refrigeration system. It does not rely on external auxiliary equipment. Its core integrates an
Air Cooled Chiller Unit
The air cooled chiller units is an efficient refrigeration equipment adopting air cooling mode. Its core consists of a compressor, air-cooled condenser, evaporator, throttling device and intelligent
Water Cooled Chiller Unit
The water-cooled chiller unit is an efficient refrigeration equipment using water as the cooling medium. Its core consists of a compressor, shell-and-tube water-cooled condenser, evaporator,

Product Types & Selection

Select the appropriate chiller configuration by matching heat rejection duty, site ambient limits, and liquid loop hydraulic demands.

Air-Cooled Chiller Units

Operating Principle: Rejects heat directly into surrounding air via forced draft fans over aluminum-finned copper coil condensers.
Capacity Range: 3 kW to 200 kW
Selection Criteria: Ideal for facilities without existing cooling water infrastructure, indoor spaces with fresh air supply, or outdoor skid mounts.

Water-Cooled Chiller Units

Operating Principle: Transfers process heat to a secondary facility cooling tower or water circuit via a shell-and-tube or brazed-plate condenser.
Capacity Range: 30 kW to 500 kW+
Selection Criteria: Recommended for high ambient temperature areas (>40 °C), heavy thermal process loads, or sound-sensitive indoor shop floors.

Technical Specifications

Parameter Category	Standard Specifications	Optional / OEM Customizations
Cooling Capacity	5 kW – 300 kW	Scalable multi-circuit designs up to 500 kW+
Fluid Temp Range	+5 °C to +35 °C	Low-temp glycol cooling down to -20 °C
Temp Stability	±0.5 °C	High-precision PID control down to ±0.1 °C
Refrigerant Type	R410A, R407C	R32, R134a, R454B eco-refrigerants
Compressor Type	Hermetic scroll (Copeland / Danfoss)	Semi-hermetic compact screw compressors
Evaporator Type	316L stainless steel brazed plate	Heavy-duty shell-and-tube / Titanium coil
Pump Configuration	Stainless steel multi-stage centrifugal	High-head / High-flow pump options
Supply Voltage	380 V / 3Ph / 50 Hz	220 V, 415 V, 440 V, 480 V / 60 Hz

Applications & Compatibility

Engineered for seamless integration into high-demand equipment enclosures and factory environments.

Laser Processing

Fiber laser sources, laser cutting heads, and optics cooling.

Metalworking & CNC

High-speed motorized spindles, hydraulic power units (HPUs), and EDM dielectric cooling.

Plastics & Rubber

Injection mold cores, blow molding machinery, and extruder feed throats.

Operating Ambient Range

Full-load rating from -5 °C to +45 °C (Tropicalized packages available up to +50 °C).

Customization & OEM Manufacturing

Manufacturing lines support private-label branding, customized mechanical layouts, and scaled batch supply.

OEM Engineering

Customized frame dimensions, powder coating matching (RAL palette), private labeling, and embedded controller firmware adjustments.

PLC Communication

Integrated RS485 interfaces supporting Modbus RTU, CANopen, or Ethernet/IP protocols for master controller connectivity.

Factory Infrastructure

Production facilities utilize CNC fiber laser cutters, automated copper tube orbital welding, and automatic refrigerant evacuation/charging equipment.

Lead Time & Output

Standard order fulfillment in 15 to 25 calendar days. Modular assembly line supports a monthly output capacity exceeding 500 units.

Quality Control & Testing Protocols

Every chiller unit undergoes complete Factory Acceptance Testing (FAT) prior to export packaging.
Quality Control Steps:

Pneumatic Leak Test

3.0 MPa high-pressure nitrogen hold test for 24 hours on all refrigeration piping.

Helium Mass Spectrometry

Leak testing targeting micro-leaks down to 1 × 10⁻⁶ mbar·L/s.

Electrical Safety Inspection

Hi-pot insulation breakdown testing, grounding continuity, and phase sequence verification.

Full-Load Thermal Run Test

4-hour continuous performance test verifying thermal capacity, compressor draw, pump head pressure, and sensor calibration.

Compliance & Standards

CE compliant, ISO 9001 certified manufacturing, RoHS compliant electrical hardware.

Technical Documentation

Ships with English wiring/piping schematics, CE declarations, user manuals, and factory test reports.

Frequently Asked Questions

Q: How do I size the required cooling capacity for my equipment?

A: Sizing is based on the heat energy equation: Q = m × c × ΔT, where Q is required heat removal (kW), m is mass flow rate (kg/s), c is fluid specific heat capacity, and ΔT is fluid temperature difference. You can also provide your equipment's total electrical power dissipation for an engineering calculation.

Q: What are the installation requirements for air-cooled versus water-cooled chillers?

A: Air-cooled chillers require clear perimeter air clearance for fan intake and exhaust, releasing process heat into the surrounding area. Water-cooled chillers require connection to an external cooling tower water loop but emit minimal ambient heat into the room.

Q: Does the internal controller connect to our machinery HMI?

A: Yes. Standard units include an RS485 connection using Modbus RTU protocol, enabling real-time remote monitoring of fluid temperatures, pressure alarms, operational states, and remote start/stop control from your master PLC.

Q: What protective devices prevent hardware damage during operation?

A: Built-in safety interlocks include high/low refrigerant pressure cutouts, motor overload protection relays, low water flow switches, anti-freeze temperature sensors, and phase-loss/reversal protection relays.

Q: What warranty terms and spare parts support are offered for export orders?

A: Standard warranty covers 12 months from machine commissioning or 18 months from the Bill of Lading date. Spare components (controllers, expansion valves, pressure switches, flow sensors) are maintained in factory stock for expedited air shipment.

Q: Are non-standard electrical voltages supported for regional power grids?

A: Yes. Units are built to regional power grid specifications, including 208 V–230 V/60 Hz, 460 V–480 V/60 Hz (3-phase), and 380 V–415 V/50 Hz, using UL-recognized or CE-marked electrical components.

Request a Quote & Technical Proposal

To receive an engineering specification proposal and commercial quotation within 24 hours, please specify the following parameters:
Required Cooling Duty (kW, Btu/h, or Tons)
Target Chilled Water Outlet Temperature (°C or °F)
Water Flow Rate (L/min or GPM) and Required Pump Head Pressure (bar or PSI)
On-Site Supply Voltage / Frequency / Phase
Target Application (Laser, CNC Spindle, Injection Molding, Chemical, etc.)
Projected Quantity (Prototype unit or recurring annual volume)

Zhejiang Xuanyuntong Refrigeration Technology Co., Ltd. is one of the most experienced chiller unit manufacturers and suppliers in China. We warmly welcome you to wholesale high quality chiller unit made in China here from our factory. Also, custom service is available.