Pneumatic finishing device for mounting on CNC and conventional carrier machines, especially for cramped and inaccessible installation situations.
All functions of the attachment can be controlled by hand via a pneumatic control unit or via the machine control.
For the superfinish processing of ground and finely turned surfaces, also for tapered roller bearings with small undercuts.
Technical data | Supfina 90 |
Frequency DH/min, max/min | 5100 / 3300 |
Amplitude in mm | ± 0.35 – 0.4 |
Air pressure in bar | 4.5 |
Air Consumption in Nm³/h | 6 – 7 |
Weight in kg (without control unit) | 5.4 |
Control unit in kg | 2.4 |
Stone Guide Type | Integrated |
Stone Guide Stroke in mm | 15 |
Stone Guide Quantity | 1 |
Piston area in cm² | 7 |
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Typical workpieces for this attachment
Simply select the workpiece to be machined or a similar one and receive a customized selection of suitable Supfina attachments.
Quick, easy, and precise.

Cup tappet
The superfinishing of the surface at the cup tappet is very important to ensure optimal performance, durability and reliability of the engine.
Balance shaft
The bearings on the balancer shaft must be superfinished to reduce friction and wear, minimize noise, ensure precise alignment and increase durability. This improves the performance and efficiency of the engine.
Planetary gear
The front face of the planetary gear is finished to ensure precise alignment, minimized imbalance, increased durability, and reduced friction in the planetary gear system.
Crank shaft
For repairs and tuning, the bearing points of the crankshaft can be machined with superfinishing attachments. This can achieve surfaces like OEM or even better.
Pinion Shaft
The bearing points of the pinion shaft are exposed to particular loads. Therefore, these must be superfinished for a long running time.
Ball pin
Both the running surfaces and the ball surfaces must be finished. Supfina offers exactly fitting superfinishing attachments and tools.
Control slide
When using the control slide in hydraulic or pneumatic systems, the sealing surfaces are finished to ensure effective sealing and to obtain precise and smooth switching.
Turbine shaft
The bearing seats of the turbine shaft can be machined with stone or tape finish as required. For lathes, carrier machines or in a turret, Supfina offers a suitable device.