- SAINER
- Xianning City,Hubei,China
- lead time: 30-50 days
- a monthly capacity of 10 million
Saineer self-developed SWL ball screw jack and JWM trapezoidal worm screw lifter are industrial linear lifting units with self-locking function. Alloy bronze worm wheel & hardened worm gear deliver heavy load capacity, support manual & electric driving, single or multi-jack synchronous lifting. Two screw types match high-speed frequent operation and static heavy positioning respectively, independent proprietary design without imitation for all industrial adjustment and lifting machinery.
Product Overview

Saineer SWL & JWM worm screw jacks are self-developed linear lifting transmission units adopting worm & worm wheel driving structure, converting rotary motion into vertical linear lifting movement. This series is divided into SWL ball screw type and JWM trapezoidal acme screw type to cover full working conditions from high-speed frequent lifting to heavy-load static positioning.
Support single-unit independent operation or multi-jack synchronous linkage matched with steering gear units and helical reducers, widely used for height adjustment, lifting, pushing and flipping of industrial equipment. All casting housings, worm tooth profiles, screw thread processing and sealing structures are proprietary independent design without copying external brand appearance or internal components.
Core Technical Advantages

1. Built-In Self-Locking Safety Function
JWM trapezoidal screw realizes mechanical self-locking under load, no extra brake required to prevent accidental falling; SWL ball screw optional brake motor for stable positioning, higher safety for lifting equipment.
2. Two Screw Types for Full Scenario Matching
• JWM Acme trapezoidal screw: Strong load bearing, low frequency operation, cost-effective for static adjustment
• SWL Ball screw: Ultra-low friction, high transmission efficiency ≥90%, long service life for continuous high-speed reciprocating lifting
3. High-Strength Worm & Gear Assembly
Worm wheel made of wear-resistant tin bronze, worm adopts alloy steel quenching grinding; stable meshing, anti-abrasion, long service cycle under 24h continuous heavy load.
4. Compact Cast Iron Integrated Housing
Rigid cast iron shell with reinforcing ribs, good shock resistance and heat dissipation; multiple mounting bases, top screw caps, flanged connection forms for flexible installation layout.
5. Diversified Drive Modes & Customization
Support manual hand crank, three-phase motor, servo motor, hydraulic drive input; customizable screw stroke, protective cover, anti-corrosion coating, travel limit switch, synchronous linkage control system.
6. Multi-Point Synchronous Lifting System
Can be combined with T series steering gearbox and R/F/K/S helical reducers to form 2/4/6/8-point synchronous lifting platform, realize uniform lifting without deflection.

Main Application Industries
Automation production lines, packaging machinery, metallurgical equipment, water treatment facilities, construction lifting platforms, agricultural machinery, medical equipment, testing machine tools, silo baffle adjustment, three-dimensional warehouse, environmental protection stirring equipment.
Intellectual Property Compliance Statement

Saineer SWL & JWM worm screw lifters are fully self-designed and manufactured by our factory. SWL/JWM are our internal model codes only representing ball screw and trapezoidal screw lifting structures, belonging to general industrial linear transmission classification, not associated with any foreign brand serial numbers, patents or appearance designs. All structural molds and transmission technologies are Saineer exclusive intellectual property.









