Blohm PLANOMAT HP 412
This model was not found in Blohm'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 It may be a superseded or older model; the specifications below are as we last recorded them.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
table working area
max workpiece weight
longitudinal travel x
cross travel y
vertical travel z
grinding spindle power
How much does the Blohm PLANOMAT HP 412 cost?
Estimated price range
Our best estimate for a cnc grinding machine in this class — not a quote from Blohm. Configuration moves it a long way.
Overview
The Blohm PLANOMAT HP 412 is a surface grinder with a 400 × 1,200 mm (15.7 × 47.2 in) table working area, 1,350 mm (53.1 in) of longitudinal travel and a workpiece limit of 600 kg (1,323 lb). It is not in Blohm's current lineup, and the listed figures are unconfirmed.
The table reads like a finishing machine's. Flatness capability is given as < 1 µm, with the qualifier that this applies in a controlled environment, and surface finish capability as Ra < 0.05 µm. Neither is a guarantee for a used machine on an ordinary shop floor: results at that level depend on temperature control, wheel selection, dressing and the condition of the guideways, so ask for a recent test piece.
The wheel drive is listed as 15 - 22 kW (20.1 - 29.5 HP), a range that suggests more than one motor size was offered; find out which is fitted. Wheels go up to 500 mm (19.7 in) in diameter and 80 mm (3.15 in) in width, at a peripheral speed of up to 63 m/s. The Profimat 412, on a table of the same size, is listed at 80 m/s with a 100 mm (3.9 in) wheel width, so it has the faster and wider wheel, while the flatness and finish rows appear only here.
Vertical travel is 450 mm (17.7 in) and cross travel 500 mm (19.7 in), so the cross axis covers the full 400 mm (15.7 in) table width with room for wheel run-off. Longitudinal rapid traverse is 20,000 mm/min (787 ipm). The base is polymer concrete for vibration damping, and the control is a Siemens 840D sl with the Blohm PLANOMAT HP interface.
Full Specifications
| Parameter | Value |
|---|---|
| Table Working Area | 400 × 1,200 mm (15.7 × 47.2 in) |
| Max Workpiece Weight | 600 kg (1,323 lb) |
| Longitudinal Travel X | 1,350 mm (53.1 in) |
| Cross Travel Y | 500 mm (19.7 in) |
| Vertical Travel Z | 450 mm (17.7 in) |
| Grinding Spindle Power | 15 - 22 kW (20.1 - 29.5 HP) |
| Max Wheel Peripheral Speed | 63 m/s |
| Max Grinding Wheel Diameter | 500 mm (19.7 in) |
| Max Grinding Wheel Width | 80 mm (3.15 in) |
| Flatness Capability | < 1 µm (controlled environment) |
| Surface Finish Capability | Ra < 0.05 µm |
| Rapid Traverse Longitudinal | 20,000 mm/min (787 ipm) |
| Machine Base | Polymer concrete for vibration damping |
| CNC Control | Siemens 840D sl with Blohm PLANOMAT HP interface |
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
- Flatness capability listed as < 1 µm in a controlled environment, with surface finish capability of Ra < 0.05 µm
- 400 × 1,200 mm (15.7 × 47.2 in) table working area with 1,350 mm (53.1 in) of longitudinal travel
- Cross travel of 500 mm (19.7 in) exceeds the 400 mm (15.7 in) table width
- Polymer concrete base for vibration damping
- Takes wheels up to 500 mm (19.7 in) in diameter
Limitations
- Wheel width is limited to 80 mm (3.15 in) and peripheral speed to 63 m/s
- Spindle power is listed only as a range, 15 - 22 kW (20.1 - 29.5 HP), so the motor fitted has to be confirmed
- Workpiece weight is limited to 600 kg (1,323 lb)
- Not in Blohm's current lineup; the flatness and finish rows are unconfirmed and depend on the environment
Best For
Frequently Asked Questions
01
Flatness capability is listed as < 1 µm, qualified as applying in a controlled environment, and surface finish capability as Ra < 0.05 µm. Both are unconfirmed figures, and on a used machine they depend on its condition and on shop temperature control.
02
The table working area is 400 × 1,200 mm (15.7 × 47.2 in). Longitudinal travel is 1,350 mm (53.1 in), cross travel 500 mm (19.7 in) and vertical travel 450 mm (17.7 in), with a maximum workpiece weight of 600 kg (1,323 lb).
03
Up to 500 mm (19.7 in) in diameter and 80 mm (3.15 in) in width, at a maximum peripheral speed of 63 m/s. Spindle power is listed as 15 - 22 kW (20.1 - 29.5 HP).
04
Both are listed with a table of 400 mm by 1,200 mm. The Profimat 412 has an 80 m/s wheel speed and a 100 mm (3.9 in) wheel width, against 63 m/s and 80 mm (3.15 in) here; the PLANOMAT HP 412 is listed with the higher workpiece weight, 600 kg (1,323 lb) against the Profimat 412's 500 kg (1,100 lb).
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