Reaction arms and torque tubes are specialized ergonomic systems designed to support tool weight and absorb the harmful torque reaction generated during fastening processes[cite: 1, 6]. These systems ensure that the operator is protected from repetitive strain and sudden torque impulses, making them essential for high-precision assembly lines[cite: 15, 16].
These systems provide zero-gravity balancing and absorb torque reactions up to 1,350 Nm (1,000 ft lb), allowing for precise movement and orientation for tools such as multiple-spindle nutrunners[cite: 1, 31].
Increases operator efficiency and significantly reduces fatigue by eliminating tool weight[cite: 5, 6].
Eliminates torque reaction exposure, reducing the potential for workplace injuries[cite: 5, 43].
Improves fastening precision and prevents cross-threading through stable tool orientation[cite: 6, 104].
Reduces tool placement time with fixtured orientations (up, down, or angled)[cite: 6, 102].
Enables complex material handling and assembly tasks that are not practical with standard manual methods[cite: 6, 9].
| Model Type | Max Torque Capacity | Max Weight Capacity | Typical Applications |
|---|---|---|---|
| Vertical Balancer (SVB) | None (Positioning only) | 277 KG (610 lb) | Nutrunners, End Effectors [cite: 13, 14] |
| Light Duty Tube (STT075) | 135 Nm (100 ft lb) | 24 KG (55 lb) | Light Assembly, Single Nutrunners [cite: 39] |
| Medium Duty Tube (STT100) | 270 Nm (200 ft lb) | 90 KG (200 lb) | Line Tracking, Multiple Spindles [cite: 44, 46] |
| Heavy Duty Tube (STT125) | 677 Nm (500 ft lb) | 150 KG (350 lb) | High Torque Fastening [cite: 51, 52] |
| Articulating Arm (HAS) | 1,356 Nm (1000 ft lb) | 157 KG (345 lb) | Maximum Reach & Flexibility [cite: 31, 32] |
Table Mounted (TLA/THA): Ideal for benchtop applications requiring 3-axis movement (X, Y, Z)[cite: 18].
Floor Mounted: Perfect for areas where overhead rails or ceiling space are unavailable[cite: 9, 116].
Overhead Bridge: Integrated with rail systems for wide-area coverage and mobility[cite: 114, 117].
Rotation: Options for 220° (Clevis) or 360° (Swivel) non-continuous rotation[cite: 23, 24].
Customization: Engineered solutions available for capacities up to 5,000 Nm[cite: 3, 97].
