CHMER DX655C
Image: dlf9q0zq4dwf6.cloudfront.net, CHMER
Key Specifications
Table Size
x axis travel
y axis travel
z axis travel
oil tank size
max workpiece size
How much does the CHMER DX655C cost?
Price estimate
We do not have a price for the CHMER DX655C that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.
Overview
The CHMER DX655C is a CNC die sinker EDM built around CHMER's third-generation discharge circuit, which the maker calls EDM 3.0, and presented under the heading automation of die sinker EDM. Travels are 600 x 500 x 500 mm (23.6 x 19.7 x 19.7 in) on ball screw axes, with a 3,000 kg (6,614 lb) workpiece limit.
Mechanically it lines up with the CM655C of the older CNC series: the same travels, the same 900 x 600 mm table, the same workpiece and 300 kg (661 lb) electrode limits. The difference is in the generator and the motion figures CHMER now publishes. The DX table gives an X and Y feed rate of up to 6,000 mm/min (236 ipm) and a Z-axis jump speed of up to 8,000 mm/min (315 ipm).
Only one power supply is listed, the 60N, with a maximum working current of 60 A and a best surface finish of 0.1 μm Ra. CHMER's claims for the circuit are specific: an energy-saving circuit that reduces input power from 5 kVA to 3.5 kVA, a DPG3 module whose firmware raises machining speed by 30%, and a graphite circuit that reduces carbon buildup. So this is a finishing-oriented machine, not a high-current rougher: the CM655C can be had with 150 A.
Programs are generated automatically after the single-side trimming amount is set, with built-in modes for deep grooves, mirror finishes and terminals. The oil tank measures 1,500 x 1,000 x 560 mm and the DX655 dielectric tank holds 1,300 L (343 gal). Machine weight is 3,500 kg (7,716 lb).
Full Specifications
| Parameter | Value |
|---|---|
| X Axis Travel | 600 mm (23.6 in) |
| Y Axis Travel | 500 mm (19.7 in) |
| Z Axis Travel | 500 mm (19.7 in) |
| Table Size | 900 x 600 mm (35.4 x 23.6 in) |
| Oil Tank Size | 1,500 x 1,000 x 560 mm (59.1 x 39.4 x 22.0 in) |
| Max Workpiece Size | 1,350 x 900 x 450 mm (53.1 x 35.4 x 17.7 in) |
| Axis Drive System | X, Y, Z Axis Ball Screw |
| Xy Feed Rate | Max. 6,000 mm/min (236 ipm) |
| Z Axis Jump Speed | Max. 8,000 mm/min (315 ipm) |
| Distance Ram Platen to Table | 300-800 mm (11.8-31.5 in) |
| Max Electrode Weight | 300 kg (661 lb) |
| Max Workpiece Weight | 3,000 kg (6,614 lb) |
| Machine Weight | 3,500 kg (7,716 lb) |
| Dielectric Tank Model | DX655 |
| Dielectric Capacity | 1,300 L (343 gal) |
| Filter Method | Paper filter |
| Generator Models | 60N |
| Max Working Current | 60 A |
| Max Input Power | 5 kVA |
| Electrode Consumption Rate | 0.2% |
| Best Surface Finish | 0.1 μm Ra |
Specifications sourced from dlf9q0zq4dwf6.cloudfront.net — verified 2026-10-05
Strengths & Limitations
Strengths
- Best surface finish of 0.1 μm Ra with the 60N power supply
- Z-axis jump speed up to 8,000 mm/min (315 ipm) and X, Y feed up to 6,000 mm/min (236 ipm)
- EDM 3.0 circuit: CHMER states input power reduced from 5 kVA to 3.5 kVA
- 3,000 kg (6,614 lb) workpiece and 300 kg (661 lb) electrode limits
- Automatic program generation with modes for deep grooves, mirror finishes and terminals
Limitations
- Only the 60N power supply is listed: 60 A maximum working current
- Ball screw axes; the linear motor variant in the same catalogue is a different, smaller model
- Machine dimensions are published inconsistently by the maker
- 1,300 L (343 gal) of dielectric to maintain
Best For
Frequently Asked Questions
01
The power supply table lists a best surface finish of 0.1 μm Ra and an electrode consumption rate of 0.2% for the 60N unit. CHMER also describes an optimized finishing circuit that improves surface roughness by 25%.
02
X, Y, Z axis travel is 600 x 500 x 500 mm (23.6 x 19.7 x 19.7 in). The work table is 900 x 600 mm, the maximum workpiece size 1,350 x 900 x 450 mm, and the limits are 3,000 kg (6,614 lb) for the workpiece and 300 kg (661 lb) for the electrode.
03
Travels, table size and load limits match. The DX655C has the EDM 3.0 circuit with a single 60N power supply (60 A, 0.1 μm Ra best finish). The CM655C is offered with 50N to 150N generators, up to 150 A, with a best surface roughness of 0.25 μm Ra.
04
An energy-saving circuit that reduces input power from 5 kVA to 3.5 kVA, a DPG3 module whose upgraded firmware boosts machining speed by 30%, a graphite machining circuit that improves efficiency by 30%, and AVR voltage and NR current stabilization for machining stability.
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