CHMER CM A43C
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 CM A43C cost?
Price estimate
We do not have a price for the CHMER CM A43C 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 CM A43C is a bridge-type CNC die sinker EDM with 400 x 300 mm (15.7 x 11.8 in) of table travel and 350 mm (13.8 in) of ram travel. CHMER describes the A series as a bridge design to fit heavy workpieces with a small footprint, and the figures bear that out: the machine carries a 1,000 kg (2,200 lb) workpiece inside outside dimensions of 1,910 x 1,800 x 2,280 mm.
The generator and the dielectric tank are both built in, which is where the compact outline comes from. The work tank measures 1,100 x 640 x 400 mm (43.3 x 25.2 x 15.7 in), and the dielectric volume is 480 L (127 gal) with paper filtration. Two generator ratings are offered, 50N and 75N, with maximum machining currents of 50 A and 75 A and power inputs of 4 kVA and 5 kVA.
Positioning uses linear glass scales in a closed-loop control system. The controller is PC based with dialogue programming: after the operator enters electrode material, workpiece material and electrode size, the working program is made automatically. An APC protection circuit is there to prevent arcing in finish machining.
Electrode weight is limited to 100 kg (220 lb), and the ram platen sits 260-610 mm above the table. Tool changer and C axis are options, as is CE conformity on the accessory list. CHMER's page gives two different machine weights for this model, so none is shown here.
Full Specifications
| Parameter | Value |
|---|---|
| Table Size | 650 x 400 mm (25.6 x 15.7 in) (W x D) |
| Work Tank Size | 1,100 x 640 x 400 mm (43.3 x 25.2 x 15.7 in) (W x D x H) |
| X Axis Travel | 400 mm (15.7 in) |
| Y Axis Travel | 300 mm (11.8 in) |
| Z Axis Travel | 350 mm (13.8 in) |
| Distance Ram Platen to Table | 260-610 mm (10.2-24.0 in) |
| Max Electrode Weight | 100 kg (220 lb) |
| Max Workpiece Weight | 1,000 kg (2,200 lb) |
| Machine Dimensions | 1,910 x 1,800 x 2,280 mm (75.1 x 70.8 x 89.7 in) (W x D x H) |
| Dielectric Tank Model | DA43 |
| Generator Models | 50N / 75N |
| Max Machining Current | 50 A (50N) / 75 A (75N) |
| Max Power Input | 4 kVA (50N) / 5 kVA (75N) |
| Electrode Wear Rate | 0.2% |
| Best Surface Roughness | 0.25 μm Ra |
| Dielectric Volume | 480 L (127 gal) |
| Filter Method | Paper filter |
Specifications sourced from chmer.com — verified 2026-10-05
Strengths & Limitations
Strengths
- Bridge design: 1,000 kg (2,200 lb) workpiece in a 1,910 x 1,800 mm (75.1 x 70.8 in) footprint
- Generator and 480 L (127 gal) dielectric tank are built in
- Linear glass scales with closed-loop control
- Dialogue PC-based CNC with automatic program generation
- Best surface roughness listed at 0.25 μm Ra with an electrode wear rate of 0.2%
Limitations
- Generator options stop at 75 A (75N); the D433CL can be ordered with a 150N generator
- Tool changer and C axis are options
- Table travel of 400 x 300 mm (15.7 x 11.8 in) is the smallest in the A series
- Machine weight is published inconsistently
Best For
Frequently Asked Questions
01
Table travel is 400 x 300 mm (15.7 x 11.8 in) in X and Y, and ram travel is 350 mm (13.8 in). The table measures 650 x 400 mm (25.6 x 15.7 in) and the work tank 1,100 x 640 x 400 mm (43.3 x 25.2 x 15.7 in).
02
Two: the 50N with a maximum machining current of 50 A and a power input of 4 kVA, and the 75N with 75 A and 5 kVA. Both list an electrode wear rate of 0.2% and a best surface roughness of 0.25 μm Ra, and both are built into the machine.
03
The maximum workpiece weight is 1,000 kg (2,200 lb) and the maximum electrode weight is 100 kg (220 lb). CHMER attributes the load capacity to the bridge design.
04
No. The option list names a tool changer, a C axis, a fire extinguisher, a magnetic base and CE conformity. Standard accessories are a paper filter, clamping kit, tool box, flushing nozzles, machine stand, drill chuck, electrode holder and halogen work lamp.