Key Features
The SU Type clamp is engineered for flexibility and safety in heavy-duty industrial environments.
- Multi-Directional Lifting: The universal lifting eye is movable in two directions, facilitating the transition of loads between horizontal and vertical positions.
- Pre-Tension Mechanism: Equipped with a safety spring mechanism that ensures the clamp does not slip when lifting force is initially applied or when the load is being lowered.
- Secure Locking: The clamp can be locked in both the open and closed positions to prevent accidental release during operation.
- Articulated Shackle: Allows for universal flexibility, ensuring a secure grip even during side-loading (up to 90 degrees).
Technical Specifications
- Capacity (WLL): Generally available in ranges from 0.5 tonnes up to 30 tonnes.
- Jaw Opening: Varies by model, with standard openings ranging from 0 to 150 mm.
- Surface Hardness: Suitable for steel plates with a maximum surface hardness of approximately 37 HRC(345 HB).
- Safety Factor: Typically designed with a break factor of 5 times the Safe Working Load (SWL) and tested at 2 times the SWL.
Common Applications
Due to its versatile design, the SU Type clamp is widely used in various sectors:
- Steel Fabrication: For turning and uprighting plates during the welding or machining process.
- Construction: Hoisting structural beams, roofing sheets, and precast concrete elements.
- Shipbuilding: Handling large Holland-Profil (HP) structures and ship hull plates.
- Warehousing: Moving raw steel coils or plates along production lines without surface damage.
The following table outlines the most frequently used industrial sizes:
| Working Load Limit (WLL) | Jaw Opening (Range) | Typical Weight |
| 0.5 Ton / 0.75 Ton | 0 – 13 mm or 0 – 20 mm | 1.5 – 4.2 kg |
| 1.0 Ton | 0 – 20 mm or 0 – 25 mm | 4.8 – 6.5 kg |
| 2.0 Tons | 0 – 25 mm or 0 – 35 mm | 6.5 – 15 kg |
| 3.0 Tons | 0 – 30 mm or 0 – 35 mm | 10 – 18 kg |
| 5.0 Tons | 0 – 50 mm | 21 – 27 kg |
| 7.5 Tons | 0 – 40 mm or 0 – 55 mm | 30 – 50 kg |
| 12.0 Tons | 0 – 52 mm or 0 – 64 mm | 45 – 90 kg |
Safety Note: Always ensure the load is driven fully into the “throat” of the clamp and never exceed the rated Working Load Limit (WLL).
