Vollmer QWD750
Key Specifications
Accuracy
max blade diameter
min blade diameter
tooth count range
grinding faces
axes
Overview
The Vollmer QWD750 is a CNC grinding machine designed for the production and resharpening of tungsten carbide circular saw blades with diameters up to 750 mm — the large-diameter saw blades used in wood panel processing, aluminum extrusion cutting, and steel tube and pipe manufacturing. Where the CHD270 handles smaller circular saw blades (up to 840 mm but focused on smaller segments), the QWD750 specializes in the complete tooth geometry grinding of larger industrial carbide-tipped circular saw blades with complex tooth profiles.
The QWD750 grinds all tooth face angles — top clearance, side clearance, side rake, and hook angle — in a fully automated CNC cycle. The machine identifies the tooth count automatically and indexes each tooth to the grinding position, eliminating manual indexing that conventional saw sharpening machines require. Vollmer's programming system enables rapid changeover between different saw blade specifications — diameter, tooth count, and tooth geometry — without specialized operator skill for each blade type.
For aluminum extrusion cutting, the QWD750 handles the triple-chip and alternate-bevel tooth geometries required for clean, burr-free aluminum cuts. For wood panel processing (particleboard, MDF, plywood), the machine grinds the flat-top and triple-chip geometries used for through-cutting and scoring applications. For steel tube and steel structural cutting, the QWD750 grinds the negative hook angle geometries required for controlled chip formation in steel circular sawing.
At $200,000-$350,000 new, the QWD750 is the standard machine at industrial saw blade resharpening services and large manufacturing facilities maintaining their own circular saw blade inventory. Vollmer's global service network and blade-specific tooling ecosystem support the QWD750 throughout its service life.
Full Specifications
| Parameter | Value |
|---|---|
| Max Blade Diameter | 750 mm (29.5 in) |
| Min Blade Diameter | 80 mm (3.1 in) |
| Tooth Count Range | 6-900 teeth |
| Grinding Faces | Top, face, side clearance angles (full geometry) |
| Axes | CNC (X, Y, Z, A, B) |
| Positioning Accuracy | 0.01 mm |
| Blade Indexing | Automatic (electronic tooth detection) |
| CNC Control | Vollmer VC 756 |
| Machine Weight | ~2,800 kg (6,173 lb) |
Specifications sourced from vollmer-group.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 750 mm maximum diameter covers the full range of industrial circular saw blades from panel saws through large-diameter aluminum and steel cutting
- Automatic tooth detection and indexing eliminates manual blade setup and reduces operator skill requirements
- Full tooth geometry grinding (top, face, side angles) in a single setup — no multiple machine passes required
- Handles aluminum, wood, and steel saw blade geometries with same machine — versatile for multi-material resharpening services
- Vollmer's largest global installed base in saw sharpening ensures parts availability and local service coverage
Limitations
- $200K-$350K investment requires high blade resharpening volume or large internal saw blade fleet to justify
- 750 mm is the maximum — specialty large-format saws above 750 mm require larger machines
- Programming complex special-geometry blades requires familiarity with Vollmer's control system
- Carbide-tipped blade grinding generates grinding swarf and coolant waste requiring proper disposal
Best For
Frequently Asked Questions
01
The QWD750 grinds all standard carbide-tipped circular saw tooth geometries: flat-top (FT), alternate bevel (ATB), triple-chip grind (TCG), alternate bevel with raker (ATBR), and high-alternate bevel (Hi-ATB). The machine grinds top clearance angle, face angle (hook/rake angle), and both left and right side clearance angles. For metal-cutting blades, negative hook angle geometries are fully supported. For specialty geometries, Vollmer's application team provides programming assistance.
02
A 500 mm, 96-tooth carbide saw blade in good condition (minor wear, no damaged teeth) takes approximately 20-35 minutes to fully resharpen on the QWD750. This includes automatic tooth detection, all tooth faces (top, left, right side, face), and unload. Blades with heavy wear or chipped teeth require additional stock removal time. The QWD750's cycle time is significantly faster than conventional manual sharpening machines.
03
Yes. Aluminum-cutting carbide saw blades have distinct geometry requirements — triple-chip or alternate bevel with high positive hook angles (12-20°) for clean, burr-free aluminum cuts. The QWD750 programs and grinds these geometries accurately. Aluminum saw blades also typically have more teeth per diameter than wood saws, which the QWD750 handles through its automatic tooth detection system.
04
The CHD270 is Vollmer's machine for grinding the complete tooth geometry of circular saw blades up to 840 mm, but it is a combined machine that also handles other saw types. The QWD750 is a specialized CNC grinder focused on tungsten carbide circular saws up to 750 mm with full 5-axis tooth geometry capability. The QWD750 has higher programming flexibility and faster cycle times for production resharpening volumes.
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