CHMER NV643L
Image: dlf9q0zq4dwf6.cloudfront.net, CHMER
Key Specifications
x axis travel
y axis travel
z axis travel
uv axis travel
max workpiece size
max workpiece weight
How much does the CHMER NV643L cost?
Price estimate
We do not have a price for the CHMER NV643L 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 NV643L is the larger NV-series wire EDM: 600 x 400 x 310 mm (23.6 x 15.7 x 12.2 in) of X, Y and Z travel, an 800 kg (1,764 lb) workpiece limit and a triple linear guideway structure that CHMER applies to this model only.
That guideway layout is the mechanical difference from the NV432L. CHMER says it stabilises the saddle and upper frame as they move, on top of the trapezoidal base and moving XY axis structure that both NV machines share. The taper rating is also wider in reach, ± 21°/140 against ± 21°/110 on the NV432L, with U and V travel of 120 x 120 mm (4.7 x 4.7 in).
Submerged, the machine accepts a workpiece of 900 x 700 x 305 mm (35.4 x 27.6 x 12.0 in). Dielectric capacity is 1,250 L (330 gal), the same as on the smaller model, with a paper filter, a 20 L resin filter and automatic water quality and temperature control.
Everything else is NV equipment: UX1 linear motors on X and Y at 1,800 mm/min (70.9 ipm), the 6th Gen AWT with break point re-threading, an automatic rise-and-fall tank door and the N-Type Controller with its 24" color touch screen. Net weight is 4,100 kg (9,039 lb). CHMER's catalogue and web page give slightly different machine dimensions for this model, so that row is omitted here.
Full Specifications
| Parameter | Value |
|---|---|
| X Axis Travel | 600 mm (23.6 in) |
| Y Axis Travel | 400 mm (15.7 in) |
| Z Axis Travel | 310 mm (12.2 in) |
| Uv Axis Travel | 120 x 120 mm (4.7 x 4.7 in) |
| Max Workpiece Size | 900 x 700 x 305 mm (35.4 x 27.6 x 12.0 in) (Submerged) |
| Max Workpiece Weight | 800 kg (1,764 lb) |
| Xy Feed Rate | 1,800 mm/min (70.9 ipm) |
| Axis Drive System | XY Axes Linear Motor Drive/ UVZ Axes AC Servo Motor Drive |
| Wire Diameter | 0.15-0.3 mm (0.006-0.012 in); standard 0.25 mm (0.010 in) |
| Wire Tension | 300-2,500 gf |
| Wire Feed Rate Max | 300 mm/sec (11.8 in/sec) |
| Wire Feeder Load Capacity | ≤ 8 kg (18 lb) |
| Taper Angle | ± 21°/140 (Wide Angle Nozzle, DA+DB=15 mm) |
| Machine Weight | 4,100 kg (9,039 lb) |
| Dielectric Capacity | 1,250 L (330 gal) |
| Filter | Paper |
| Ion Exchange Resin Filter | 20 L (5.3 gal) |
| Water Quality Control | Auto |
| Water Temperature Control | Auto |
| Power Supply Circuit | Transistor, No Resistance Loop |
| Discharge Mode | Rough Machining / Fine Machining / AC-μ Super Fine Finish |
| Max Power Consumption | 8 kVA |
| CNC Control | N-Type Controller, GenOS (LINUX) |
| Display | 24" Color Touch Screen |
| Controlled Axes | 5 / 7 Axes: X, Y, U, V, Z (Optional Rotary Axis) |
| Resolution Unit | 0.0001 mm |
| Power Requirement | 3 Phase 220V ± 5% |
Specifications sourced from dlf9q0zq4dwf6.cloudfront.net — verified 2026-10-05
Strengths & Limitations
Strengths
- Triple linear guideway design, which CHMER lists for the NV643 model specifically
- 600 x 400 x 310 mm (23.6 x 15.7 x 12.2 in) travels with an 800 kg (1,764 lb) workpiece limit
- ± 21°/140 taper rating on 120 x 120 mm (4.7 x 4.7 in) of U and V travel
- 6th Gen AWT, automatic tank door and automatic water level control for unattended running
- UX1 linear motors on X and Y, 1,800 mm/min (70.9 ipm)
Limitations
- Dielectric capacity of 1,250 L (330 gal) is no larger than on the NV432L
- Machine dimensions are published inconsistently and need confirming
- Wire feeder load capacity is limited to 8 kg
- Maximum input power is 8 kVA on a 3 Phase 220V ± 5% supply, so other voltages need a transformer
Best For
Frequently Asked Questions
01
Travels are 600 x 400 x 310 mm against 400 x 300 x 250 mm on the NV432L, the load limit is 800 kg (1,764 lb) against 500 kg (1,102 lb), and the taper rating is ± 21°/140 against ± 21°/110. CHMER also lists a triple guideway design for the NV643 model. Control, AWT and dielectric capacity are the same.
02
CHMER describes a unique triple linear guideway structure that ensures stability during saddle and upper frame movements, for better machining stability and accuracy. It is named for the NV643 model.
03
Up to 900 x 700 x 305 mm (35.4 x 27.6 x 12.0 in) and 800 kg (1,764 lb). An extended Z-axis travel is available as an option for thicker workpieces or cutting with the 6th axis.
04
Wire of 0.15-0.3 mm (0.006-0.012 in), 0.25 mm standard, at 300-2,500 gf and up to 300 mm/sec. The wire feeder load capacity is 8 kg or less. Threading is by the 6th Gen AWT system with a wire threading assistant device.
