CNC Grinding
The finish-grinding step that turns a hardened part into a precision part.
2 Models
Surface & Cylindrical
±0.001 mm
Best Repeatability
1,000 mm
Longest Grinding Length
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Advantages
Why Choose CNC Grinding?
Sub-Micron Finish Accuracy
±0.002 mm positioning holds flatness, parallelism and roundness after hardening or EDM.
Automatic Wheel Dressing
Consistent wheel geometry through a full production run without manual intervention.
One Control, Two Machine Types
The Brenvoss Vantis G control trains operators once across surface and cylindrical grinding.
Full Parts and Service Support
Factory-trained technicians and stocked spares cover installations across Canada and the US.
Featured
BG-S650
Surface and profile grinder holding sub-micron flatness on hardened tool steel components.
Brenvoss BG-S650
Table size
650 x 300 mm (25.6 x 11.8 in)
X / Y / Z travel
650 x 300 x 500 mm (25.6 x 11.8 x 19.7 in)
Grinding wheel size
350 x 50 x 127 mm (13.8 x 2.0 x 5.0 in)
Wheel spindle speed
1,800 - 3,600 rpm
Our Machines
The Complete CNC Grinding Lineup
Each system is engineered for specific applications. Compare specs to find the right fit.
CNC surface and profile grinder
BG-S650
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.
- Table size
- 650 x 300 mm (25.6 x 11.8 in)
- X / Y / Z travel
- 650 x 300 x 500 mm (25.6 x 11.8 x 19.7 in)
- Grinding wheel size
- 350 x 50 x 127 mm (13.8 x 2.0 x 5.0 in)
- Wheel spindle speed
- 1,800 - 3,600 rpm
CNC cylindrical grinder
BG-C400
The BG-C400 rounds out the Brenvoss grinding line with cylindrical capability for shafts, pins, rolls and round tooling that need OD finish grinding after hardening. A 400 mm swing, 1,000 mm between centres and an 11 kW wheel spindle cover the bulk of round precision work Tollaston sees from hydraulic cylinder, pump shaft and precision roll manufacturers. The same ±0.002 mm positioning accuracy as the BG-S650 carries over, and both machines share the Brenvoss Vantis G control, so a tooling department running both surface and cylindrical grinding trains its operators once. It's the natural companion to the BG-S650 for shops that need round parts finished to the same standard as their flat and profiled work.
- 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)
See everything we carry from Brenvoss.
Side by Side
Compare Systems
See how each platform stacks up across the specs that matter most.
BG-S650Featured
- Grinding Type
- Surface / Profile
- Table / Swing
- 650 x 300 mm table
- Wheel Spindle Power
- 7.5 kW
- Positioning Accuracy
- ±0.002 mm
BG-C400
- Grinding Type
- Cylindrical
- Table / Swing
- 400 mm swing
- Wheel Spindle Power
- 11 kW
- Positioning Accuracy
- ±0.002 mm
| Specification | BG-S650Featured | BG-C400 |
|---|---|---|
| Grinding Type | Surface / Profile | Cylindrical |
| Table / Swing | 650 x 300 mm table | 400 mm swing |
| Wheel Spindle Power | 7.5 kW | 11 kW |
| Positioning Accuracy | ±0.002 mm | ±0.002 mm |
Applications
Industries We Serve
CNC Grinding systems are trusted across diverse industries and production environments.
FAQ
CNC Grinding Questions
Answers to common questions about our cnc grinding products.
Hardening and heat treatment warp material slightly and leave a surface too hard for a cutting tool to finish economically; grinding removes that distortion and holds the tight flatness, parallelism or roundness tolerances a finished precision part needs.
The BG-S650 handles flat surface and profile work; the BG-C400 handles round parts like shafts, rolls and pins. Many tooling departments run both to cover their full part mix.
Both machines position to ±0.002 mm, and with correctly dressed wheels shops routinely hold flatness, parallelism and roundness within a few microns on production parts.
No — both machines have an automatic wheel dressing cycle standard, keeping wheel geometry consistent through a production run without operator intervention.
On-site training on setup, dressing and workholding, plus factory-trained service technicians and stocked spare parts across Canada and the US.
Ready to Discuss Your CNC Grinding Solution?
Our team has 32+ years of experience helping Canadian manufacturers find the right cutting and processing equipment.
32
Years in Business
4,800+
Machines Installed
46
Factory-Trained Technicians
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