Worm Gear Screw Jack

SWL Series Worm Gear Screw Jack is a fundamental lifting component characterized by its compact structure, small size, lightweight, noiseless operation, safety, convenience, flexibility, high reliability, broad power source compatibility, versatile functionality, and long service life. It can be used individually or in combination, accurately controlling and adjusting lifting or pushing heights according to specific procedures. It can be driven directly by a motor or other power sources, or manually.  

To enhance the efficiency and load capacity of the SWL Series Worm Gear Screw Jack, special and advanced processes have been implemented to improve its overall performance, meeting various customer demands.  
The SWL Series Worm Gear Screw Jack offers different structural and assembly types, with customizable lifting heights based on user requirements.  

Technical Features:
◆ Structural Types 
1 Type – Screw moves axially.  
2 Type – Screw rotates, and the nut moves axially.  

◆ Assembly Types  
Type A – Screw or nut moves upward.  
Type B – Screw or nut moves downward.  

◆ Screw Head Types  

For Type 1 structure:  
Ⅰ Type (Cylindrical), Ⅱ Type (Flanged), Ⅲ Type (Threaded), Ⅳ Type (Flat Head).  

For Type 2 structure:  
Ⅰ Type (Cylindrical), Ⅲ Type (Threaded).  

◆ Gear Ratios  
Standard ratio (P), Slow ratio (M), Medium ratio (F) customizable upon user request.  

◆ Lifting Load Capacity  
2.5kN, 5kN, 10kN, 15kN, 20kN, 25kN, 35kN, 50kN, 100kN, 120kN.  

◆ Screw Protection  
Type 1 structure: Basic (no protection), Anti-rotation (F), Protective cover (Z), Anti-rotation with cover (FZ).  
Type 2 structure: Basic (no protection).  

The JWM trapezoidal screw jack is widely used in industries such as machinery, metallurgy, construction, and hydraulic equipment. It offers various functions, including lifting, lowering, pushing, tilting, and height adjustments with the help of auxiliary components. The SWL worm gear screw jack is a fundamental lifting component with features such as a compact structure, small size, lightweight, wide range of power sources, noiseless operation, easy installation, and flexible use. It can be driven directly by other power sources or manually. The JWM trapezoidal screw jack is available in different structural and assembly forms, and the lifting height can be customized according to user requirements.

Main Products:
SWL worm gear screw jack, QWL worm gear screw jack, JWM trapezoidal screw jack, JWB ball screw jack, TRSS worm gear and worm screw jack, JRSS worm gear and worm jack, SJA spiral screw jack, SJB ball screw jack, HK screw jack, MA spiral screw jack.

Product Overview:
The JWM screw jack is a fundamental lifting component characterized by a compact structure, small size, lightweight, broad power source compatibility, low noise, easy installation, flexible use, multifunctionality, various matching forms, high reliability, and long service life. It can be used individually or in combination and can accurately control and adjust lifting or pushing heights according to specific procedures. It can be driven by an electric motor, other power sources, or manually. The jack is available in various structural and assembly forms, and the lifting height can be customized to meet user requirements.

Performance Features:
The screw jack (trapezoidal screw type) is suitable for low-speed, low-frequency applications, primarily consisting of trapezoidal screw pairs and high-precision worm gear sets.
Compact structure, simple operation, and easy maintenance.
Low speed, low frequency: Mainly used in high-load, low-speed, and infrequent operation scenarios.
Load retention: The trapezoidal screw can lock loads at high gear ratios, even without a braking device.
Note: In cases of significant vibration or impact load, the self-locking function may fail. In such situations, an external braking device is recommended.

Product Description:
The screw jack linkage system can be configured with 2, 3, 4, or 8 jacks. It is widely applied in industries such as food, pharmaceuticals, chemicals, steel, metallurgy, textiles, plastics, and paper, as well as on production lines and other mechanical equipment.

The SJA worm gear screw jack is widely used in industries such as machinery, construction, hydraulics, and metallurgy, offering various functions including lifting, lowering, pushing, tilting, and height adjustment with the help of auxiliary components.
The SJA worm gear screw jack is a fundamental lifting component characterized by a compact structure, small size, lightweight, wide range of power sources, easy installation, noiseless operation, multifunctionality, diverse configurations, flexible use, high reliability, and long service life.

Features of the SJA Worm Gear Screw Jack

Thrust Range: 0.5-30 tons

Stroke: Up to 8 meters (considering screw stability and guidance systems)

Duty Cycle: 30% (can be increased if the load rate is low)

Lifting Speed: Less than 1500 mm/min (23 mm/s)

Efficiency: Less than 33%, with self-locking function; large reduction ratio L1 ensures self-locking

Precision Positioning: With an anti-backlash device, precision can reach 0.05 mm

High Synchronization: Multiple screw jacks can be driven by the same motor for mechanical synchronization

Optional Accessories: Encoder, limit switch, dust cover, safety nut, reducer, standard motor, servo motor, stainless steel materials, etc.

Easy Operation and Maintenance: Low noise.

The square grooved housing of the jack enhances heat dissipation, extending the service life of lubricating grease. The ductile iron housing significantly improves strength and performance, allowing broad applications in high and low-temperature environments. The square tail cap design prevents the screw from rotating. High-quality machining and assembly processes ensure high impact resistance, strength, low noise, long life, and compact size.

The modular design enriches product combinations, allowing seamless integration with motors, geared motors, and non-standard accessories, providing thousands of easy configuration options for customers.

Custom designs are available upon request, including stainless steel housings and screws, multi-thread screws, and models resistant to low or high temperatures.