CHMER CM865C
Image: chmer.com, CHMER
Key Specifications
Table Size
work tank size
x axis travel
y axis travel
z axis travel
distance ram platen to table
How much does the CHMER CM865C cost?
Price estimate
We do not have a price for the CHMER CM865C 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 CM865C CNC die sinker EDM offers 800 x 600 mm (31.5 x 23.6 in) of table travel on a 1,200 x 800 mm (47.2 x 31.5 in) table, with 500 mm (19.7 in) of ram travel. Its workpiece limit is 4,000 kg (8,800 lb).
Compared with the CM655C the ram end is unchanged. Electrode weight is still 300 kg (660 lb), ram travel still 500 mm and the generator range still 50N to 150N. What the CM865C adds is table travel in both axes and a further tonne of load, so two cavities of a family mould, or both halves of a mid-size tool, can be set up side by side. The CM655C lists 600 x 500 mm of travel and 3,000 kg (6,600 lb).
The weight of the casting shows where the capacity comes from. The machine is 5,800 kg (12,760 lb), against 3,500 kg (7,700 lb) for the CM655C, in stress-relieved cast iron that CHMER specifies as FC30. Ball screws and linear guides carry all three axes, with closed-loop linear scales for feedback.
The work tank is 1,600 x 1,000 x 550 mm and the D865 dielectric tank holds 1,600 L (423 gal). The ram platen is 290-790 mm (11.4-31.1 in) from the table. Overall height is 2,860 mm (112.5 in), so check the clear height where the machine will stand.
Full Specifications
| Parameter | Value |
|---|---|
| Table Size | 1,200 x 800 mm (47.2 x 31.5 in) (W x D) |
| Work Tank Size | 1,600 x 1,000 x 550 mm (63 x 39.4 x 21.7 in) (W x D x H) |
| X Axis Travel | 800 mm (31.5 in) |
| Y Axis Travel | 600 mm (23.6 in) |
| Z Axis Travel | 500 mm (19.7 in) |
| Distance Ram Platen to Table | 290-790 mm (11.4-31.1 in) |
| Max Electrode Weight | 300 kg (660 lb) |
| Max Workpiece Weight | 4,000 kg (8,800 lb) |
| Machine Dimensions | 2,200 x 2,400 x 2,860 mm (86.6 x 94.4 x 112.5 in) (W x D x H) |
| Machine Weight | 5,800 kg (12,760 lb) |
| Dielectric Tank Model | D865 |
| Generator Models | 50N / 75N / 125N / 150N |
| Max Machining Current | 50 A (50N) / 75 A (75N) / 125 A (125N) / 150 A (150N) |
| Max Power Input | 4 kVA (50N) / 5 kVA (75N) / 9 kVA (125N) / 10 kVA (150N) |
| Max Machining Speed | 350 mm3/min (50N) / 550 mm3/min (75N) / 900 mm3/min (125N) / 1,050 mm3/min (150N) |
| Electrode Wear Rate | 0.2% |
| Best Surface Roughness | 0.25 μm Ra |
| Dielectric Volume | 1,600 L (423 gal) |
| Filter Method | Paper filter |
Specifications sourced from chmer.com — verified 2026-10-05
Strengths & Limitations
Strengths
- 800 x 600 mm (31.5 x 23.6 in) table travel on a 1,200 x 800 mm (47.2 x 31.5 in) table
- 4,000 kg (8,800 lb) workpiece limit
- Generators from 50N to 150N, up to 150 A
- 5,800 kg (12,760 lb) cast iron machine structure
- 1,600 L (423 gal) dielectric tank
Limitations
- Electrode limit of 300 kg (660 lb) is no higher than on the CM655C
- 2,860 mm (112.5 in) overall height
- Ram travel stays at 500 mm (19.7 in)
- Tool changer and C axis are options
Best For
Frequently Asked Questions
01
Table travel is 800 x 600 mm (31.5 x 23.6 in) and ram travel 500 mm (19.7 in). The table is 1,200 x 800 mm (47.2 x 31.5 in) and the work tank 1,600 x 1,000 x 550 mm.
02
A workpiece of up to 4,000 kg (8,800 lb) and an electrode of up to 300 kg (660 lb). The distance between ram platen and table is 290-790 mm (11.4-31.1 in).
03
Maximum machining speed depends on the generator: 350 mm3/min with the 50N, 550 with the 75N, 900 with the 125N and 1,050 mm3/min with the 150N. Electrode wear rate is listed at 0.2% for all of them.
04
The machine measures 2,200 x 2,400 x 2,860 mm (86.6 x 94.4 x 112.5 in) and weighs 5,800 kg (12,760 lb). The generator cabinet and the 1,600 L (423 gal) dielectric tank stand separately.