Introduction
The slab clamp consists of clamp body, clamp arms, clamp tongues (jaws), pins, lifting ring and connecting rod mechanism. The clamp body and clamp arms are integrally forged or welded from high-strength alloy steel, with high strength, good toughness and wear resistance after heat treatment. During operation, align the clamp opening with the steel billet, the crane lifts the lifting ring, drives the two clamp arms to close through the connecting rod mechanism, the clamp tongues press both side surfaces of the steel billet, using self-weight and lever principle to form reliable clamping; the greater the load, the stronger the clamping force amplified by the lever, forming self-locking to ensure no loosening during lifting. After lowering, the clamp arms automatically open to unload the steel billet. Vertical lifting type is used for vertical steel billet lifting (billet elevation vertical), horizontal lifting type is used for horizontal steel billet lifting (billet plane horizontal), flipping type can achieve 90° steel billet flipping. The clamp tongue contact surface is specially treated or equipped with copper/nylon pads, ensuring sufficient friction without scratching the steel billet surface. The slab clamp requires no power supply and no maintenance, can work reliably in high-temperature and dusty steel mill environments, widely used in steel billet offline in continuous casting workshops, steel billet loading in rolling mills, billet yard stacking and transfer, serving as an efficient special sling for steel billet lifting in steel mills.
Application
Our Advantage
Uses lever principle and self-weight to achieve automatic clamping—the greater the load, the stronger the clamping force, forming reliable self-locking, will not loosen due to vibration and sway during lifting; safety factor ≥4 times, tested via 1.25× rated load static test, ensuring safe heavy-load steel billet lifting, far superior to electric clamps.
Pure mechanical structure, no power supply, cables and control cabinet needed, not affected by high temperature, dust and electromagnetic interference in steel mills; only need to align the steel billet and lift to automatically clamp, lower to automatically release, no manual operation of clamping mechanism needed, can be completed by one person, simple operation, low failure rate and low maintenance cost.
Specially designed for steel billet, slab and square billet shapes, clamp tongue shape fits the steel billet side surface with stable clamping; vertical lifting, horizontal lifting, flipping and other types optional, clamping thickness 50~600mm adjustable, adapting to steel billets of different specifications; can lift a single billet with one clamp, or use multiple clamps in combination to lift multiple or extra-long billets, adapting to different process needs such as continuous casting, rolling and yard.
Clamp body and clamp arms are integrally forged or welded from high-strength alloy steel, normalized and tempered, with high tensile strength, good toughness and impact resistance; clamp tongue contact surface is high-frequency quenched, with high hardness and wear resistance; pins adopt 40Cr alloy steel, normal service life over 8 years, suitable for 24-hour continuous operation and high-temperature harsh environments in steel mills.
The clamp tongue contact surface is equipped with copper or nylon protective pads, both increasing friction to prevent slipping and avoiding direct metal clamp tooth contact scratching the steel billet surface; clamping force is evenly distributed without causing local deformation or indentation of the steel billet, especially suitable for lifting continuous casting billets and finish-rolled billets with high surface quality requirements, reducing defect rate and rework cost.
Specification
| Parameter | 1~5t | 10~20t | 30~50t |
| Rated Capacity | 1/2/3/5t | 10/16/20t | 30/50t |
| Clamping Thickness | 50~200mm | 100~400mm | 200~600mm |
| Opening Size | 200~500mm | 400~1000mm | 800~2000mm |
| Clamp Body Width | 300~600mm | 600~1200mm | 1200~2500mm |
| Type | Vertical Lifting / Horizontal Lifting | Vertical Lifting / Horizontal Lifting / Tilting | Vertical Lifting / Tilting |
| Safety Factor | ≥4 | ≥4 | ≥4 |
| Clamp Body Material | Alloy Steel Forged / Welded | Same as Left | Same as Left |
| Clamp Tongue Hardness | HRC45~50 | Same as Left | Same as Left |
| Pad Material | Copper / Nylon (Optional) | Same as Left | Same as Left |
| Pin Material | 40Cr Alloy Steel | Same as Left | Same as Left |
| Weight | 50~300kg | 300~1200kg | 1200~4000kg |
| Applicable Billet | Small Square Billet / Small Slab | Large Square Billet / Medium Slab | Large Slab / Extra Thick Slab |
