Mikrosa ABIR M 500
This model was not found in Mikrosa'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 It may be a superseded or older model; the specifications below are as we last recorded them.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
max workpiece diameter infeed
min workpiece diameter through feed
max workpiece diameter through feed
max workpiece length infeed
max workpiece weight
grinding wheel diameter
How much does the Mikrosa ABIR M 500 cost?
Estimated price range
Our best estimate for a cnc grinding machine in this class — not a quote from Mikrosa. Configuration moves it a long way.
Overview
The Mikrosa ABIR M 500 is listed as a centerless grinding machine for large, heavy parts: up to 500 mm (19.7 in) in diameter and 600 mm (23.6 in) long in infeed grinding, at a workpiece weight of approx. 80 kg (176 lbs). The model is not in Mikrosa's current lineup, and the listed figures have not been checked against a maker document. Treat them as a starting point when assessing a used machine and confirm them on the machine itself.
The wheel set matches the part size. The grinding wheel is 750 mm (29.5 in) in diameter and up to 350 mm (13.8 in) wide, running at up to 63 m/s, and it works against a 400 mm (15.7 in) regulating wheel turning at 1 to 60 RPM. Through-feed grinding covers a narrower band than infeed, from 10 mm (0.39 in) to 200 mm (7.9 in) in diameter, so the 500 mm capacity applies to plunge work only. The 600 mm infeed length is also longer than the widest wheel, which means a part near that length cannot be ground along its whole length in a single plunge.
The listed quality figures are roundness of ≤ 0.003 mm (3 µm) in production conditions and a surface finish of Ra ≤ 0.3 µm (12 µin). The base is Granitan mineral casting in what the table calls the heavy-duty ABIR configuration, and both wheels are dressed under CNC with a diamond form roll and profile dressing. The control row names Mikrosa ABIR grinding software. For automation the table lists PROFINET, gantry or robot loading, a post-process gauge and SPC integration. At approx. 80 kg per part, hand loading is not realistic, so find out which loading equipment comes with a given machine.
Full Specifications
| Parameter | Value |
|---|---|
| Max Workpiece Diameter Infeed | 500 mm (19.7 in) |
| Min Workpiece Diameter Through Feed | 10 mm (0.39 in) |
| Max Workpiece Diameter Through Feed | 200 mm (7.9 in) |
| Max Workpiece Length Infeed | 600 mm (23.6 in) |
| Max Workpiece Weight | Approx. 80 kg (176 lbs) |
| Grinding Wheel Diameter | 750 mm (29.5 in) |
| Grinding Wheel Width | Up to 350 mm (13.8 in) |
| Regulating Wheel Diameter | 400 mm (15.7 in) |
| Grinding Wheel Peripheral Speed | Up to 63 m/s |
| Regulating Wheel Speed Range | 1 – 60 RPM |
| Roundness Achievable | ≤ 0.003 mm (3 µm) in production conditions |
| Surface Finish Achievable | Ra ≤ 0.3 µm (12 µin) |
| Machine Base | Granitan mineral casting (heavy-duty ABIR configuration) |
| Dressing System | CNC diamond form roll and profile (both wheels) |
| CNC Control | Siemens 840D sl with Mikrosa ABIR grinding software |
| Automation Interface | PROFINET, gantry/robot loading, post-process gauge, SPC integration |
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
- Infeed capacity of 500 mm (19.7 in) in diameter and 600 mm (23.6 in) in length, with workpieces of approx. 80 kg (176 lbs)
- 750 mm (29.5 in) grinding wheel, up to 350 mm (13.8 in) wide, at a peripheral speed of up to 63 m/s
- CNC dressing of both wheels with a diamond form roll and profile dressing, so wheel forms are generated under program control
- The automation row lists PROFINET, gantry or robot loading, a post-process gauge and SPC integration
- Granitan mineral casting base in the heavy-duty ABIR configuration
Limitations
- Through-feed grinding is limited to 10 mm (0.39 in) to 200 mm (7.9 in) in diameter; the 500 mm (19.7 in) figure is for infeed work only
- The listed figures have no maker document behind them, so wheel sizes and capacities need confirming on the machine before work is committed to it
- The table gives no grinding wheel power, machine weight or floor space, all of which matter when planning the installation of a machine with a 750 mm (29.5 in) wheel
- Regulating wheel speed stops at 60 RPM
Best For
Frequently Asked Questions
01
The listed figures give two ranges. In infeed grinding the maximum is 500 mm (19.7 in) in diameter and 600 mm (23.6 in) in length. In through-feed grinding the diameter range is 10 mm (0.39 in) to 200 mm (7.9 in). Maximum workpiece weight is listed as approx. 80 kg (176 lbs).
02
A 750 mm (29.5 in) grinding wheel up to 350 mm (13.8 in) wide, with a peripheral speed of up to 63 m/s, and a 400 mm (15.7 in) regulating wheel with a speed range of 1 to 60 RPM. Both wheels are dressed under CNC using a diamond form roll and profile dressing.
03
Roundness is listed as ≤ 0.003 mm (3 µm) in production conditions and surface finish as Ra ≤ 0.3 µm (12 µin). These are table figures that have not been confirmed against a maker document, and results on a used machine depend on its condition, wheels and setup.
04
The automation row lists PROFINET, gantry or robot loading, a post-process gauge and SPC integration. With workpieces of approx. 80 kg (176 lbs), automated loading is the practical route. The table does not say which of these items a particular machine was delivered with.
