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EDM Chillers

Precision cooling solutions designed to maintain stable dielectric-water temperature, helping EDM machines achieve consistent machining accuracy, surface finish and reliable long-cycle operation.
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Introduction

Atcorp offers dedicated EDM chiller solutions for Wire EDM and Sinker EDM applications where stable dielectric-fluid temperature is critical to machining accuracy. The compact, tankless design uses a stainless-steel shell-and-coil heat exchanger, R410A refrigerant and hot-gas-bypass control to maintain temperature within approximately ±1°C while supporting demanding workshop conditions.

Key Benefits

±1°C Temperature Control
SS304 Heat Exchanger –
Wide Temperature Range
EDM-Specific Cooling
Tankless Design
Easy Machine Integration

Why Choose Edm Chillers?

EDM machining generates heat that can affect dielectric-fluid temperature, spark-gap behaviour and ultimately machining accuracy. A dedicated EDM chiller continuously removes this heat and maintains a stable dielectric temperature, helping Wire EDM and Sinker EDM machines achieve more consistent cutting performance and surface finish during extended machining cycles.
Specification Details
Cooling Capacity 4.3 kW
Cooling Type Air-Cooled
Design Tankless
Operable Liquid Temperature 10–30°C
Operable Ambient Temperature 5–45°C
Temperature Control Precision ±1.0°C
Inlet / Outlet Port BSP 3/4″
Compressor Rotary Type
Condenser Finned Tube, Forced Air Cooling
Evaporator Shell & Coil
Evaporator Material SUS304
Refrigerant R410A
Control Method Hot Gas Bypass
Power Supply 1 Phase, 230V ±5%, 50Hz
Power Consumption 2.06 kW
Electric Current 9.45 A
Power Capacity 3.76 kVA
Dimensions H × D × W 729 × 656 × 476 mm
Dry Weight Approx. 60 kg

An EDM chiller continuously removes heat from the dielectric fluid and returns temperature-controlled fluid to the machine.

 

Step 1 – Dielectric Fluid Return
Warm dielectric fluid returns from the EDM machine after absorbing process heat.

 

Step 2 – Heat Transfer
The fluid passes through the SS304 shell-and-coil heat exchanger.

 

Step 3 – Refrigeration
The refrigeration circuit extracts heat from the dielectric fluid.

 

Step 4 – Heat Rejection
The air-cooled condenser releases the extracted heat into the surrounding environment.

 

Step 5 – Temperature Regulation
Hot-gas-bypass control regulates cooling capacity to maintain the required temperature.

 

Step 6 – Cooled Fluid Delivery
The temperature-controlled dielectric fluid returns to the EDM machine.

 

Step 7 – Continuous Cooling
The cycle repeats throughout machining to maintain stable dielectric conditions.

Stable Dielectric Temperature

Maintaining a consistent fluid temperature helps minimize thermal variations during precision EDM operations.

 

Improved Machining Consistency

Stable dielectric conditions support consistent spark-erosion behaviour, dimensional accuracy and surface finish.

 

Purpose-Built for EDM

The cooling configuration is specifically suited to Wire EDM and Sinker EDM machining environments.

 

SS304 Heat Exchanger

The shell-and-coil heat exchanger is constructed entirely from SS304, providing a durable cooling surface for dielectric applications.

 

Compact Tankless Construction

The tankless configuration reduces equipment footprint and makes the chiller practical for machine-side installation.

Hot-Gas-Bypass Control

The control system maintains thermal stability by regulating refrigeration output according to the cooling requirement.

 

Workshop-Ready Design

IP-rated fan motors and a dust-filter mesh help the system operate reliably in typical industrial workshop environments.

 

Easy Monitoring & Integration

Water-temperature display, alarm functions, remote ON/OFF and potential-free status contacts simplify operation and machine integration.

Standard Features

  • SS304 shell-and-coil heat exchanger
  • Tankless compact configuration
  • Hermetically sealed rotary compressor
  • R410A refrigerant
  • Hot-gas-bypass temperature control
  • IP-rated fan motor
  • High-pressure-resistant condenser
  • Dust-filter mesh
  • Remote ON/OFF
  • Potential-free chiller status contacts
  • Water-temperature display
  • Alarm system
  • EDM temperature sensor
  • Powder-coated frame
  • Caster-mounted construction
  • Compact machine-side installation

 

Optional Features

  • RS485 communication
  • Smart remote communication
  • Application-specific monitoring
  • Customized installation configuration

Industrial Applications

EDM chillers are designed for precision machining environments where stable dielectric-fluid temperature is important for consistent cutting and finishing performance.
Wire EDM Machines
Maintains stable dielectric-water temperature during precision wire-cut EDM operations.
Sinker EDM Machines
Provides controlled cooling for dielectric fluid used in sinker EDM machining.
Precision Engineering
Supports thermal stability for high-accuracy machining operations.
Automotive Tooling
Helps maintain consistent cooling conditions when producing dies, moulds and precision tooling.
Electronics & Micro Components
Provides controlled dielectric cooling for precision component manufacturing.

Frequently Asked Questions

Find answers about EDM chillers, dielectric cooling, temperature control, Wire EDM, Sinker EDM and machine integration.
An EDM chiller is a dedicated cooling system that removes heat from the dielectric fluid used in electrical discharge machining. Maintaining a stable dielectric temperature helps support consistent machining accuracy and process performance.
Heat generated during EDM operation can change the temperature and characteristics of the dielectric fluid. A dedicated chiller helps maintain a stable temperature, supporting consistent spark-gap conditions, dimensional accuracy and surface finish.
The referenced GKE EDM chiller supports a liquid temperature range of 10°C to 30°C, with temperature-control precision of approximately ±1°C.
The referenced GKS1500E-DM model provides approximately 4.3 kW of cooling capacity. Final capacity should be selected according to the EDM machine’s heat load and operating requirements.
Yes. Remote ON/OFF and potential-free status contacts are standard features, while RS485 communication can be enabled for suitable applications.
Atcorp can help Indian EDM users evaluate machine type, dielectric-fluid requirements, heat load, required temperature range, ambient conditions and installation space to identify and supply a suitable EDM chiller solution.

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