PTLQPrecision Gas Cooling

PTLQ Series Gas Chiller

Gas cooling and thermostatting · -135℃ to +225℃

Cools process gases such as nitrogen and compressed air; widely used in wafer test and laser equipment.

  • Temperature range-135℃ ~ +225℃
  • Gas capacity30~300 m³/h
  • Cooling capacity0.5~5.5kW
  • Control accuracy±0.5℃ (±0.1℃ option)
  • ControlAdaptive PID
PTLQ Series Gas Chiller

Overview

The PTLQ gas chiller cools process gas and can also heat or hold it at a set point. The gas is typically dry compressed air or an inert gas such as nitrogen or argon; the inlet may be at ambient or elevated temperature and is brought down to the target. For wafer-test thermal chucks it offers clear advantages over conventional liquid cooling: easier handling, better hygiene and safety, lower cost and no odour. An optional IoT module allows data, alarms and remote operation from a mobile app.

Features

  • 01-135℃ to +225℃, custom ranges available
  • 02High-efficiency exchanger: ambient to -80℃ in as little as 5 minutes
  • 03Optional precision control up to ±0.1℃
  • 04Optional cold-recovery unit improves efficiency
  • 05Optional automatic inlet-flow control and measurement
  • 06Adaptive PID delivers optimal control without retuning
  • 07Optional IoT remote monitoring via mobile app

Typical Applications

  • Low-temperature gas for wafer-test thermal chucks
  • Low-temperature chip testing
  • Localised cooling for laser equipment
  • Low-temperature debonding of LCD touch panels
  • Material performance testing
  • Thermal-sink experiment control
  • Crystallisation system control

Working Principle

Compressed gas inEvaporatorCompressed air outTInlet temp.TOutlet temp.CompressorCondenserFilter drierExpansion valveControl valveTPressure gauge
※ Note: the flow diagram is simplified and may differ from the actual unit.

Model Designation

PTLQD0.550HWN
  1. 1. Product series code
  2. 2. Temperature code (minimum gas outlet temperature): A -10℃, B -25℃, C -40℃, D -60℃, F -80℃, H -100℃, J -120℃, L -150℃
  3. 3. Capacity code: cooling capacity at 5℃ above the minimum temperature, e.g. 0.5 kW at -55℃
  4. 4. Maximum gas throughput
  5. 5. Heating: built-in gas heater delivering outlet temperatures up to 200℃
  6. 6. Condensing: W for water-cooled; air-cooled is not marked
  7. 7. Non-standard code: see the non-standard code rules; omitted if not required

Specifications

Data taken from the GPTECH product catalogue. Contact us for other models or custom specifications.

SpecificationsPTLQ Series -40℃

ModelPTLQ-C05-30PTLQ-C1-60PTLQ-C1.5-90PTLQ-C2.5-150PTLQ-C3.5-200PTLQ-C5.5-300
Min. process temperature-40℃
Gas capacity m³/h306090150200300
Cooling capacity kW @-35℃0.511.52.53.55.5
Heating power kW (option)0.91.81.833.55.5
Control accuracy±0.5℃ (requires the optional heater; without it the unit runs uncontrolled and simply reaches the designed minimum outlet temperature)
Control systemPLC controller with intelligent PID temperature module for precise control and real-time display
HMI7-inch colour touchscreen, Chinese/English UI, intuitive operation, displays and logs temperature curves and test data
Controlled variableUnit outlet temperature control
CommunicationModbus RTU protocol over RS485
External inputsExternal temperature sensor port, USB data port
Temperature feedbackPT100 feedback on the heat-transfer medium (inlet and outlet temperature)
ProtectionReal-time status display and automatic fault diagnosis with multi-level alarms: power failure, compressor overload, high/low refrigerant pressure, heater over-temperature, temperature module fault and sensor fault.
Heat-exchanger materialSUS304
Heat-exchanger rating≥3 MPa
Inlet gas requirementNitrogen or 3–7 bar compressed air; must be dried, with a dew point below the minimum process temperature
RefrigerantR404A
Port size10mm卡套G1/2G3/4G1G1-1/4DN50
Water-cooled (suffix W)Flow m³/h0.61.22.12.83.55.5
Water temp.Flow rates are calculated at 20℃ water temperature. Cooling water inlet must stay between 5℃ and 30℃, otherwise unit operation is affected.
Pressure2–4.5 bar
Port sizeG1/2G1/2G3/4G1G1G1-1/4
Dimensions, water-cooled cm50×40×9550×40×9560×45×12575×55×14585×55×14590×65×155
Dimensions, air-cooled cm50×40×9560×45×12575×55×14585×55×14590×65×155115×75×175
Weight, air-cooled kg95115155225315450
EnclosurePowder-coated cold-rolled steel (standard RAL 9016, SUS304 optional)
Power supply ph/v/Hz1/220/503/380/50
Connected load kW (excl. heater)1.62.33.556.511
Option 1Flow measurement and control with flow sensor and regulating valve, model suffix F
Option 2For compressed-air supply, a built-in or external regenerative air dryer is available down to a -70℃ dew point, model suffix D
Option 3High/low-temperature version available, model suffix H, range extendable to -40 to 200℃

※ Notes

  1. Cooling capacities are based on 20℃ cooling-water inlet temperature; air-cooled units at 20℃ ambient.
  2. Only part of the product range is listed. For other models or customised requirements please contact our sales team. Specifications are subject to change without notice.

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