NDJ Series Worm Gear Screw Jacks are precision linear motion actuators designed for heavy-load lifting, positioning, and synchronization applications. Built with a worm-gear transmission and trapezoidal (T-type) screw, the NDJ series delivers stable load handling, high mechanical reliability, and long-term durability.

This product line supports multiple capacities ranging from 0.25T to 30T and offers a wide selection of configurations, including translating and rotating screw types, upward or downward mounting orientations, anti-rotation mechanisms, protective sleeves, and nine different screw-tip end forms. The modular design allows users to customize stroke, installation styles, and directional options—achieving precise motion control in diverse industrial environments.

With flexible assembly types (A / B), anti-rotation options (F, Z, X, Q), and multiple shaft-direction codes (A / B / C), the NDJ worm screw jack can seamlessly integrate into complex mechanical systems such as lifting platforms, automated lines, and synchronized multi-jack systems. It is engineered to operate safely under high loads while requiring minimal maintenance.

Features

• High load capacity up to 30 tons
• Worm-gear transmission for stable, self-locking operation
• Multiple structure types: translating screw (Type 1) or rotating screw (Type 2)
• Screw end choices: cylindrical, flange, threaded, clevis, pin-hole, spherical joint, etc.
• Customizable stroke lengths
• Anti-rotation and protective sleeve options (F-key, square guide, Z-steel tube, X/Q telescopic covers)
• Supports upward or downward travel direction
• Multiple shaft-direction options (A, B, C)
• Compatible with NDJB ball-screw jack series for high-speed or high-precision applications

Application

• Industrial lifting platforms and stage lifting mechanisms
• Solar tracking systems and photovoltaic panel elevation control
• Material handling equipment and automated logistics
• Assembly lines and synchronized multi-jack lifting systems
• Metallurgy, mining, environmental protection equipment
• Maintenance platforms, screw elevators, and adjustable tooling
• Packaging, steel processing, and heavy-duty mechanical positioning
• Valves, press systems, and precision adjustable devices requiring stable linear motion