Trapezoidal Screw Self-locking Structure
Equipped with standard trapezoidal thread screw and tin bronze worm gear pair. Its friction angle exceeds lead angle, so it can lock loads firmly without extra brake after shutdown, effectively preventing load falling and improving safety performance.
Modular Multi-specification Design
Load capacity ranges from 2.5 tons to 120 tons. Two main structures (translating screw & rotating screw) and multiple screw ends (top plate, clevis, threaded end) are optional to match various mechanical installation interfaces.
Integrated Worm & Worm Gear Drive Unit
Integrates reducer and lifting mechanism into one unit. It supports multiple power sources including hand crank, motor and gearbox. It can work alone or form multi-unit synchronous lifting systems.
Compact & Lightweight Structure
Integral cast iron housing with compact internal layout. It features smaller size and lighter weight under the same load capacity, easy to install in narrow equipment space.
Precise Positioning & Low Noise
Smooth meshing of worm gear pair eliminates impact during operation. Lifting height can be finely adjusted, with running noise between 55-65dB, ideal for silent working conditions like medical and food machinery.
Durable & Low Maintenance
Wear-resistant tin bronze worm gear and quenched anti-rust screw rod are adopted. Sealed lubrication chamber reduces failure rate. Only regular grease filling is required for daily maintenance, extending overall service life.
Q: Will SWL worm screw jack slide down automatically after power cut?
A: Standard trapezoidal screw models have self-locking function to hold loads steadily. For high-speed heavy-load working conditions, brake motor is recommended for double safety. Ball screw versions have no self-locking function, brakes are mandatory.
Q: Can multiple SWL jacks work synchronously together?
A: Yes. With bevel gearboxes and synchronous transmission shafts, 2, 4 or more jacks can realize synchronous lifting with high synchronization accuracy, widely used for lifting stages and warehouse platforms.
Q:Can lifting stroke be customized? Are there any limits?
A: Custom lifting height is available. Single-stage screw is normally within 3 meters. Telescopic protective tubes are provided for long stroke. Double-stage telescopic screw jacks are suggested for ultra-long heavy-load applications.
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