Centerless type SIG02αⅡ
Advanced model of SIG series that recorded sales of 2000 units
Features
- Compact, powerful, and rigid hydraulic guide
- Wide choice of workhead enables a broad range of grinding up to outer diameters of 62 mm
Grinding Specifications
| Workhead type | 2 roller 1 shoe M type |
2 roller 1 shoe LM type |
2 shoe 1 magnet MG type |
|||
|---|---|---|---|---|---|---|
| Min. | Max. | Min. | Max. | Min. | Max. | |
| Outer diameter | φ1.5 | φ19 | φ8 | φ26(φ40) | φ30 | φ62 |
| Inner diameter | φ1 | φ16 | φ5(φ4) | φ23(φ35) | φ5 | φ56 |
| Width | 1 | 8 | 3 | 30 | 5 | 25(30) |
Inside of Machine
| SIG02αⅡ-LMB workhead (2 roller 1 shoe) |
SIG02αⅡ-MGA workhead (2 shoe 1 magnet) |
|---|---|
 |
 |
Grinding Examples
| Machine type | LMA | LMB | MGA | MGB | |
|---|---|---|---|---|---|
| Workhead type | 2 roller 1 shoe |
2 roller 1 shoe |
2 shoe 1 magnet |
2 shoe 1 magnet |
|
| Method of grinding | Plunge Grinding |
Reciprocate Grinding | Plunge Grinding |
Reciprocate Grinding | |
| Work | Diameter |  |
 |
 |
 |
| Material | SUJ2 | ||||
| Hardness | HRC58 to 62 | ||||
| Stock removal | φ0.2mm | φ0.07 to 0.15mm | φ0.15 ±0.05mm |
φ0.12 ±0.04mm |
|
| Grinding accuracy |
Size variation |
within R=9µm (without constant size) |
within R=6µm (with constant size) |
within R=9µm (without constant size) |
within R=5µm (with constant size) |
| Roundness (O.D.roundness+) |
within 0.2µm | 0.12µm | 0.1µm | 0.13µm | |
| Roughness | within Ra 0.12µm | within Ra 0.15µm | within Ra 0.32µm | within Ra 0.32µm | |
| Cylindricity | - | within 1.0µm | - | within 1.5µm | |
| Concentricity | within 0.8µm | within 0.8µm | within 0.8µm | within 0.8µm | |
| Straightness | - | within Wt 0.4µm | - | within Wt 1.5µm | |
| R Shape | within WRt 0.4µm | - | within WRt 1.0µm | - | |
| Cycle Time | within 5.5sec | within 5.8sec | within 6.75sec | within 6.75sec | |
*The above is a part of the grinding example.
To contact us various components also except bearing.
Machine Dimensions
SII Green Products
[SIG02αⅡ is authorized as a SII Green Products.]
In December 2001, SII introduced the SII Green Product Label System, which is equivalent to the ISO 14021 Type II environmental label. This aims to raise public awareness of our eco-friendly products.
View the detail of SII Green Products.