RA: External cylindrical surfaces, from diameter 1 mm
Characteristics
- Can be used up to tolerance class IT8
- For tolerances up to IT11 the special model RAP with pressure controlled expansion is available
- Processing of all metallic materials with a tensile strength of 1400 N/mm2 and a maximum hardness of HRC ≤ 45
- Attainable surface finish Rz < 1 micron (Ra = 0.1 micron)
- Machining in pushing motion with clockwise rotation
- Available with different straight shanks (optional with hollow shank for very long workpieces)
- Internal coolant-lubricant supply optional
- Parameter recommendation:
- Max rotary speed: up to 250 m/min
- Max feed: 0.3 mm/rev per roller
3D-View RA11
Advantages
- Compact design for application in machines with limited workspace
- High degree of accuracy
- Short cycle time
- Diameter adjustment is easy and reproducible
- Requires minimal lubrication (oil or emulsion)
- Tool automatically contracts upon retraction, preventing damage to the roller burnished surface
- Wear parts are easy to exchange
Basic construction
- RA tools are supplied with solid cylindrical shafts Morse taper shafts are available as a special design.
- Roller heads are interchangeable within the diameter range.