SR-20JⅡ
Ever-Evolving SR-20JII with versatile features to respond to varied needs.
- A unique slanted dovetail slideway structure for insreased rigidity of the tool post.
- Type A is equipped with a 4-spindle type and Type B is equipped with Y-axis control / 8-spindle type backworking tool post.
- The guide bush and non-guide bush are interchangeable. The non-guide bush type incorporates a spindle sleeve slide guideway structure for higher spindle rigidity.
Tool Post
| Tool Post | Tooling | ||
|---|---|---|---|
| ① | 5-Spindle cross drilling unit  |
Turning tool | 6 tools |
| Frong-end working tool | 7 tools | ||
| Rear-end working tool | 5 tools | ||
| Power-driven tool(ER16) | 3 tools | ||
| Cartridge type | 2 pos. | ||
| 5-Spindle cross drilling unit ER16/20  |
Turning tool | 6 tools | |
| Frong-end working tool | 7 tools | ||
| Rear-end working tool | 5 tools | ||
| Power-driven tool(ER20) | 1 tools | ||
| Power-driven tool(ER16) | 2 tools | ||
| Cartridge type | 2 pos. | ||
| ② | *Type B |
Rear-end working tool | 8 tools |
| Stationary tool | max.8 tools | ||
| Power-driven tool | max.8 tools | ||
*Type A |
Rear-end working tool | 4 tools | |
| Stationary tool | max.4 tools | ||
| Power-driven tool | max.4 tools | ||
Specifications
| Item | SR-20JII | ||
|---|---|---|---|
| Max.machining diameter | Standard | ø 20mm (25/32in) | |
| Max.headstock stroke | Standard | 205mm (8in) | |
| R.M.G.B.unit | 160mm (6-19/64in) | ||
| N.G.B.type | 50mm (1-31/32in) | ||
| Tool post configuration | Gang type | Turning tool + 5-spindle sleeve holder + Power-driven tool |
|
| Number of turning tools | Gang type | 6 tools(□12mm) | |
| 5-spindle sleeve holder | Number of tools | Front : 5 tools Rear : 5 tools |
|
| Max.drilling capability | ø 12mm (1/2in) | ||
| Max.tapping capability | M10 × P1.50 | ||
| 2-spindle front sleeve holder | Number of tools | 2tools | |
| Max.drilling capability | ø 10mm (25/64in) | ||
| Max.depth of hole | 100mm (3-15/16in) | ||
| Power-driven att. | Number of tools | Gang type | 3-15 tools (Option is included) |
| Max.drilling capability | ø 10mm (25/64in) | ||
| Max.tapping capability | M8×P1.25 | ||
| Spindle speed | Cross milling | max.8,000min-1 | |
| Cartridge-type tool | max.8,000min-1 | ||
| Drive motor | 2.2kw | ||
| Rapid feed rate | 35m/min(X1,X2,Y1,Z1,Z2) 24m/min(Y2) *Type B |
||
| Main spindle indexing angle | C-axis control | ||
| Main spindle speed | max.10,000min-1 | ||
| Main spindle motor | 2.2kw(Continuous)/3.7kw(10min./25%ED) | ||
| Dimensions (W×D×H) | 2,250 × 1,200 × 1,700mm | ||
| Weight | 2,750kg | ||
| Power consumption | 4.8KVA | ||
Backworking Attachment
| Item | SR-20JII | ||
|---|---|---|---|
| Max.chucking diameter | ø 20mm (25/32in) | ||
| Max.length for front ejection | 100mm (3-15/16in) | ||
| Max.work projection length | 30mm (1-3/16in) | ||
| Backworking unit | Number of tools | 4-8 tools (type A:4 tools, type B:8 tools) | |
| Max.drilling capability | Stationary tool | ø 12mm (1-2in) | |
| Power-driven att. | ø 6mm(15/64in) | ||
| Max.tapping capability | Stationary tool | M10 × P1.5 | |
| Power-driven att. | M5 × P0.8 | ||
| Sub spindle indexing angle | C-axis control | ||
| Sub spindle speed | max.10,000min-1 | ||
| Sub spindle motor | 2.2kw(Continuous)/3.7kw(10min./25%ED) | ||