Rollomatic GrindSmart 628XW
This model was not found in Rollomatic's current lineup when we checked on 2026-10-03 . It may be a superseded or older model; the specifications below are as we last recorded them.
Key Specifications
grinding axes
max tool diameter
max tool length
wheel pack capacity
grinding spindle power
grinding spindle speed
How much does the Rollomatic GrindSmart 628XW cost?
Estimated price range
Our best estimate for a cnc grinding machine in this class — not a quote from Rollomatic. Configuration moves it a long way.
Overview
The Rollomatic GrindSmart 628XW is a 6-axis tool grinder for round tools up to 28 mm (1.1 in) in diameter and up to 300 mm (11.8 in) long. It is not in Rollomatic's current lineup, so the listed figures serve mainly as a reference for a used machine.
All six axes, X, Y and Z linear plus A, B and C rotary, are listed as simultaneous. The grinding spindle is a direct-drive motorized unit of up to 12 kW (16 HP) and up to 12,000 RPM, and the wheel pack takes up to 10 wheels with automatic changing. With that many wheels in the changer, a tool that needs separate wheels for fluting, gashing and relief can be finished in one chucking, without the re-clamping error that works against the listed cutting edge runout of ≤ 0.001 mm (1 µm) in production.
The structure is a polymer concrete base with guideways listed as hydrostatic or precision roller depending on the axis. Coolant is delivered through the spindle and by flood, with fine filtration, and tools are held in a precision collet chuck. The control is a Rollomatic CNC with Virtual Grinding (VG) software. Robot cell compatibility is listed as optional, so automation is not part of the base machine.
Against the GrindSmart 830XW, which is listed with an 11 kW (15 HP) direct-drive spindle, the listed spindle power here is slightly higher at up to 12 kW (16 HP). The listed figures give no axis travels or machine weight for the 628XW.
Full Specifications
| Parameter | Value |
|---|---|
| Grinding Axes | 6-axis simultaneous (X, Y, Z linear + A, B, C rotary) |
| Max Tool Diameter (full magazine) | 28 mm (1.1 in) |
| Max Tool Length | Up to 300 mm (11.8 in) |
| Wheel Pack Capacity | Up to 10 wheels, automatic changing |
| Grinding Spindle Power | Up to 12 kW (16 HP) |
| Grinding Spindle Speed | Up to 12,000 RPM |
| Spindle Type | Direct-drive motorized spindle |
| Cutting Edge Runout | ≤ 0.001 mm (1 µm) in production |
| Machine Base | Polymer concrete |
| Guideways | Hydrostatic / precision roller (axis-dependent) |
| CNC Control | Rollomatic CNC with Virtual Grinding (VG) software |
| Coolant | Through-spindle and flood coolant, fine filtration |
| Workholding | Precision collet chuck, sub-micron runout |
| Automation | Robot cell compatible (optional) |
Specifications compiled from manufacturer literature and industry references. Not independently verified against a published spec sheet — confirm with the manufacturer or an authorised dealer before making a purchasing decision.
Strengths & Limitations
Strengths
- 6-axis simultaneous grinding: X, Y, Z linear plus A, B, C rotary
- Wheel pack of up to 10 wheels with automatic changing
- Direct-drive motorized grinding spindle of up to 12 kW (16 HP) and up to 12,000 RPM
- Cutting edge runout listed at ≤ 0.001 mm (1 µm) in production
- Polymer concrete machine base
Limitations
- Tool diameter is limited to 28 mm (1.1 in)
- Robot cell compatibility is optional, so unattended loading is an extra
- No axis travels, machine weight or services are listed, which leaves installation planning open
- Not in Rollomatic's current lineup; confirm software and spares support for any machine on offer
- Guideway type is listed as axis-dependent without saying which axis has which
Best For
Frequently Asked Questions
01
The listed maximum tool diameter is 28 mm (1.1 in) and the maximum tool length is up to 300 mm (11.8 in). No minimum diameter is listed, so ask about small-tool capability if your range goes well below that.
02
The wheel pack capacity is up to 10 wheels with automatic changing. The grinding spindle behind it is a direct-drive motorized spindle listed at up to 12 kW (16 HP) and up to 12,000 RPM.
03
A Rollomatic CNC with Virtual Grinding (VG) software. The six axes, X, Y and Z linear plus A, B and C rotary, are listed as simultaneous. Check the software version on any used machine, since tool programs depend on it.
04
Robot cell compatibility is listed as an option, not as standard equipment. If lights-out running matters, confirm whether the machine on offer has the loader interface fitted, and what tool sizes the loader handles within the 28 mm (1.1 in) diameter and 300 mm (11.8 in) length limits.
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