Low-Temperature Water Chillers

    Low-temperature water chillers are advanced refrigeration systems that operate on the compressor-based cooling principle, similar to air conditioners. By using a closed-loop refrigeration cycle, these units produce stable high or low temperatures, constant pressure, and constant flow of circulating chilled water, making them indispensable for temperature-sensitive industrial processes.

Types of Temperature Control Machines

Low-temperature water chillers are part of a larger family of industrial temperature control equipment, which includes:

Heating Temperature Control Machines

• Temperature range: 40°C–350°C

• Also known as mold temperature machines (oil or water type).

Low-Temperature Control Machines

• Temperature range: -60°C to +25°C

• Variants: Low-temperature water chillers, ultra-low temperature freezers, and air-cooled/water-cooled models.

Normal Temperature Cooling Devices

• Range: 25°C–40°C
• Includes closed-loop coolers or cooling towers.

Industrial Air Temperature Control Machines

• Range: -40°C to +35°C
• Also called industrial air conditioners or cold air blowers.

Humidity Control Machines

Maintains humidity between 45%–75%, precision ±5%.

Temperature & Humidity Control Machines

Maintains 18°C–26°C with ±2°C precision; humidity 45%–75% ±5%.

Oil Temperature Control Machines

For hydraulic oil stations, lubrication oil, and CNC machinery.

Dual-Mode Heating & Cooling Machines

Provides instant high/low temperature switching in a single pipeline.

Heat Recovery Energy-Saving Temperature Control Machines

Recovers waste heat to produce ~60°C hot water for bathing or heating while providing cooling.

Types of Low-Temperature Water Chillers

Low-temperature chillers are mainly divided into air-cooled and water-cooled types.

Air-Cooled Low-Temperature Chillers

• Built-in water tank and pump, no cooling tower required.

• Easy to install and move.

• Requires good ventilation; otherwise, cooling efficiency drops.

• May produce steam if used in humidity-controlled cleanrooms.

Water-Cooled Low-Temperature Chillers

• Variants: Open-type, Sealed (Box type), and Screw-type.

• Requires cooling tower and water pump for optimal performance.

• Open-type: Installed outdoors, easy maintenance but less aesthetic.

• Sealed box-type: Attractive design, built-in water tank, popular in manufacturing plants.

• Screw-type: Ideal for large-scale cooling, recommended for compressors over 100HP.

Advantages of Low-Temperature Water Chillers

• Precise Temperature Control – Maintains set temperature within ±1°C.

• Versatility – Compatible with various cooling needs, from plastics to metallurgy.

• Energy Efficiency – Some models feature heat recovery to reduce energy waste.

• Space Saving – Air-cooled models eliminate the need for a cooling tower.

FAQ – Frequently Asked Questions

Q1: How do I choose between air-cooled and water-cooled chillers?
A: If installation space is limited and ventilation is good, air-cooled is convenient. For large-scale cooling and higher efficiency, choose water-cooled.

Q2: What is the lifespan of a low-temperature chiller?
A: With proper maintenance, 8–12 years is typical.

Q3: Can I use a low-temperature water chiller in a cleanroom?
A: Yes, but air-cooled models may generate steam in high-humidity environments.

Q4: What is the maintenance requirement?
A: Regularly clean filters, check refrigerant levels, and inspect pumps.

Q5: Can one chiller serve multiple machines?
A: Yes, with a properly designed piping system and capacity calculation.
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