The RollerDrive RW Series is a positioner for welding machines.
It holds up against shocks that are caused by high-speed positioning and emergency stopping of heavy loads.
The oversized hollow output shaft simplifies wiring and plumbing to the equipment to be mounted on the output shaft.
The low-profile body allows for compact equipment design.
It holds up against shocks that are caused by high-speed positioning and emergency stopping of heavy loads.
The oversized hollow output shaft simplifies wiring and plumbing to the equipment to be mounted on the output shaft.
The low-profile body allows for compact equipment design.
RW Series（3 models）
| RW170 | RW240 | RW320 |
Large diameter hollow hole
Thin body
Super high-speed positioning (180° indexing time) : 1.5 sec/2000 kg [RW320]
Oversized hollow shaft 360 mm [RW320]
Tough against impact from emergency stops
Mounts in any position
Vertical swivel arm
Large welding positioner
Hollow shaft specification rotary table
| Sizes | RW170 | RW240 | RW320 | ||||
| Allowable loading capacity | kg | 2000 | 5000 | 9000 | |||
| Allowable moment load output shaft | N・m | 5500 | 8800 | 10700 | |||
| Output shaft runout (axial/radial) |
μm or less | 10 | 10 | 10 | |||
| Angular repeatability accuracy | mm | ±0.05（R=1000mm） | ±0.05（R=1000mm） | ±0.05（R=1000mm） | |||
| Rotating Angle | deg | 0～360 | 0～360 | 0～360 | |||
| Gear ratio | 72 | 216 | 120 | 360 | 120 | 360 | |
| Maximum Speed | min-1 | 35 （210°/sec) |
13.8 （83.3°/sec) |
25 （150°/sec) |
8.3 （50°/sec) |
25 （150°/sec) |
8.3 （50°/sec) |
| Internal moment of inertia on motor shaft |
kg･m2 | 0.00388 | 0.00173 | 0.00614 | 0.00198 | 0.0118 | 0.00261 |
| Weight (Motor not included) | kg | 120 | 128.1 | 400 | 408.1 | 650 | 658（667）* |
* Weight for RW320 (high gear ratio) Yaskawa Motor.
Type of servomotor
| Model | Manufacture | Model No. | Capacity(kw） |
| RW170 | Yaskawa Electric（Σ-Ⅴ） | SGMGV-30A3A2E | 2.9 |
| RW240 | SGMGV-44A3A2E | 4.4 | |
| RW320 | SGMGV-75A3A2E | 7.5 | |
| RW170 | Yaskawa Electric (Σ-7) | SGM7G-30A7A2E | 2.9 |
| RW240 | SGM7G-44A7A2E | 4.4 | |
| RW320 | SGM7G-75A7A2E | 7.5 | |
| RW170 | Mitsubishi Electric (J4) | HF-SP352BJ | 3.5 |
| RW240 | HF-SP502BJ | 5.0 | |
| RW320 | HF-SP702BJ | 7.0 | |
| RW170 | FANUC | αiF12/4000-B（A06B-2243-B400) | 3.0 |
| RW240 | αiF22/4000-B（A06B-2248-B400) | 4.0 | |
| RW320 | αiF30/4000-B（A06B-2253-B400) | 7.0 | |
| RW170 | Mitsubishi Electric (J5) | HK-ST352WBJ | 3.5 |
| RW240 | HK-ST502WBJ | 5.0 | |
| RW320 | HK-ST702WBJ | 7.0 | |
| Same for all sizes | Motor not listed above | ||
* The motor listed above comes with a brake.
