Machine Comparison
FANUC ROBOCUT C400iB vs FANUC ROBOCUT C800iB
FANUC vs FANUC · Wire EDM
Summary
The FANUC ROBOCUT C400iB and C800iB are two sizes of the same wire EDM line, both on a FANUC Series 31i-WB control with a 0.1 - 0.3 mm wire range. They sit in different size classes: the C800iB has 800 x 600 mm of X/Y travel against 400 x 300 mm, and a 2,000 kg (4,409 lb) load limit against 500 kg (1,102 lb).
The C800iB also has more Z travel, 310 mm against 255 mm. The C400iB has the steeper taper capability, ±30° at 80 mm height against ±15° / 310 mm height, and a finer published finish, Ra 0.15 µm against Ra 0.18 µm. It is the lighter machine at 3,200 kg against 6,500 kg.
Specifications Comparison
| Specification | FANUC ROBOCUT C400iB | FANUC ROBOCUT C800iB |
|---|---|---|
| X-Axis Travel | 400 mm (15.75 in) | 800 mm (31.5 in) ▲ |
| Y-Axis Travel | 300 mm (11.81 in) | 600 mm (23.6 in) ▲ |
| Z-Axis Travel | 255 mm (10.04 in) | 310 mm (12.2 in) ▲ |
| Max Table / Workpiece Load | 500 kg (1,102 lb) | 2,000 kg (4,409 lb) ▲ |
| Wire Diameter Range | 0.1 - 0.3 mm | 0.10 - 0.30 mm |
| Max Taper Angle | ±30° at 80 mm height | ±15° / 310 mm height |
| Best Surface Finish | Ra 0.15 µm (achievable with skim passes) ▲ | Ra 0.18 µm (with skim passes) |
| Control | FANUC Series 31i-WB | FANUC Series 31i-WB |
| Machine Weight | 3,200 kg (7,055 lb) | 6,500 kg (14,330 lb) |
Advantages
FANUC ROBOCUT C400iB
- ±30° taper at 80 mm height against ±15° on the C800iB
- Ra 0.15 µm best surface finish against Ra 0.18 µm
- Lighter at 3,200 kg (7,055 lb) against 6,500 kg (14,330 lb)
FANUC ROBOCUT C800iB
- 800 x 600 mm of X/Y travel against 400 x 300 mm
- 2,000 kg (4,409 lb) workpiece load against 500 kg (1,102 lb)
- 310 mm (12.2 in) of Z travel against 255 mm (10.04 in)
Verdict
These two serve different part sizes. The C400iB suits tool and die, medical and aerospace shops cutting punches, inserts and small components, where its ±30° taper and Ra 0.15 µm finish matter. The C800iB suits mold and die shops cutting large progressive die plates and mold cavities, which need 800 x 600 mm of travel and up to 2,000 kg on the table.