CNC Grinding
BG-C400
by Brenvoss
Cylindrical grinder finishing shafts and round tooling to sub-micron roundness.
400 mm (15.7 in)
Max swing over table
1,000 mm (39.4 in)
Max grinding length
150 kg (331 lb)
Max workpiece weight
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Ideal For
- Hydraulic, pump and precision shaft manufacturers
- Roll and roller grinding operations
- Tooling departments needing round-part finish grinding
- Shops pairing surface and cylindrical grinding under one control
Max swing over table
400 mm (15.7 in)
Max grinding length
1,000 mm (39.4 in)
Max workpiece weight
150 kg (331 lb)
Grinding wheel size
500 x 63 x 305 mm (19.7 x 2.5 x 12.0 in)
Key Features
BG-C400 Features
Standard features that set this machine apart in demanding manufacturing environments.
Ease of Operation
- Programmable taper and profile grinding cycles
- Automatic wheel dressing cycle
- Brenvoss Vantis G control shared logic with the BG-S650
- Hydraulic tailstock with programmable clamping force
- In-process gauging interface for automatic size control
Built-In Extras
- 1,000 mm between-centres capacity for long shafts and rolls
- Coolant filtration system for consistent finish quality
Full Specifications
Brenvoss BG-C400 Technical Details
Complete specifications, standard features, and optional upgrades.
- Max swing over table
- 400 mm (15.7 in)
- Max grinding length
- 1,000 mm (39.4 in)
- Max workpiece weight
- 150 kg (331 lb)
- Grinding wheel size
- 500 x 63 x 305 mm (19.7 x 2.5 x 12.0 in)
- Wheel spindle speed
- 1,200 - 2,400 rpm
- Wheel spindle power
- 11 kW (14.7 hp)
- Centre height
- 200 mm (7.9 in)
- Positioning accuracy
- ±0.002 mm (0.00008 in)
- Repeatability
- ±0.001 mm (0.00004 in)
- Control
- Brenvoss Vantis G control
| Max swing over table | 400 mm (15.7 in) |
| Max grinding length | 1,000 mm (39.4 in) |
| Max workpiece weight | 150 kg (331 lb) |
| Grinding wheel size | 500 x 63 x 305 mm (19.7 x 2.5 x 12.0 in) |
| Wheel spindle speed | 1,200 - 2,400 rpm |
| Wheel spindle power | 11 kW (14.7 hp) |
| Centre height | 200 mm (7.9 in) |
| Positioning accuracy | ±0.002 mm (0.00008 in) |
| Repeatability | ±0.001 mm (0.00004 in) |
| Control | Brenvoss Vantis G control |
- 1,000 mm between-centres capacity for long shafts and rolls
- Programmable taper and profile grinding cycles
- Automatic wheel dressing cycle
- Brenvoss Vantis G control shared logic with the BG-S650
- Hydraulic tailstock with programmable clamping force
- Coolant filtration system for consistent finish quality
- In-process gauging interface for automatic size control
- Automatic wheel balancing system
- In-process gauging package with automatic compensation
- Steady-rest attachment for long, slender shafts
- Internal grinding attachment for bore finishing
- Hydraulic cylinder rod and pump shaft finishing
- Precision roll and roller grinding
- Round tooling and gauge pin finishing
- Post-heat-treatment OD finish grinding
FAQ
BG-C400 Questions
Answers to common questions about the BG-C400.
With correctly dressed wheels and a stable process, the BG-C400 routinely holds roundness and cylindricity within a few microns on hardened shaft and roll work, consistent with its ±0.002 mm positioning accuracy.
The optional steady-rest attachment supports long, slender parts mid-length to prevent deflection and chatter during the grind; our applications engineers can advise on setup for your specific shaft length and diameter.
Yes — both machines run the Brenvoss Vantis G control with the same programming logic, so an operator trained on one grinding machine needs only a short orientation on the other.
Typically 10-12 weeks build-to-order; we confirm your exact date once your configuration and any optional attachments are finalized.
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Our team has 32+ years of experience helping Canadian manufacturers find the right cutting and processing equipment.
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The BG-S650 is Brenvoss's surface and profile grinder, built for the finish-grinding step that follows hardening and heat treatment on tool steel components, punches and precision plates. A 650 x 300 mm table, ±0.002 mm positioning accuracy and a 7.5 kW wheel spindle spanning 1,800 to 3,600 rpm cover flat surface work and profiled forms alike. Tollaston installs the BG-S650 most often in tooling departments finishing parts after EDM or heat treatment, where flatness and parallelism callouts are tighter than a milling or turning operation can hold on its own. The Brenvoss Vantis G control handles both simple surface passes and programmed profile forms without swapping software.