SWLScrew Jack
SWLSeries worm gear screw lifters are a fundamental lifting component, compliant withJB/T8809—1998(Original)JB/ZQ4391—86Standard. Load capacity2.5—120TCompact structure, small size, light weight, wide power sources, low noise, easy installation, flexible operation, multiple functions, various matching forms, high reliability, and long service life. Can accurately control and adjust the lifting or propulsion height according to a certain program, can be directly driven by an electric motor or other power source, or operated manually. Input speed1500r/minEnhance speed2.7m/minVarious structural styles and assembly methods are available, with the lifting height customizable to meet customer requirements. The device features an automatic locking mechanism.
Lead Screw Lifters, also known as Spiral Drive Mechanisms. It is primarily used to convert rotational motion into linear motion or vice versa. There are those mainly for transmitting energy, such as spiral presses and jacks; others for transmitting motion, like the feed screws of machine tool tables; and still others for adjusting the relative positions of parts, such as spiral drive mechanisms. Screw lifters come in sliding friction and rolling friction types.
Worm gear material
Aluminum bronzeZQAl9-4High strength, excellent wear resistance, suitable for operation under normal loads.
Tin bronzeZCuSn10Pb1High hardness, excellent wear resistance, no tendency to lock up, good casting and machining properties, suitable for operation under high loads and high speeds. Our companyDMHelical gears for the series products are all used10-1Tin bronze.
Processing Technology
Raw material cutting and rough turning
Quenching and tempering (improving the material's mechanical properties)
Semi-finished turned outer diameter, coarse turned helical surface
Precision turned outer diameter, precision turned helical surface
Spiral surface quenching (improves spiral surface hardness, reduces wear rate)
Precision ground shaft and bearing positions
Milling keyways
Fine-ground helical surface (precision ground helical surface on screw grinding machines, reducing the roughness of the helical surface, improving the friction force on the working surface, and enhancing transmission efficiency)
Screw thread material
20CrMnTiSurface carburized hardening offers excellent workability, minimal machining deformation, and good fatigue resistance.
40CrAxial components commonly use materials that, after tempering treatment, exhibit excellent mechanical properties with high strength and good toughness.
45#The steel, after heat treatment, exhibits high strength and excellent machinability.
Processing Technology
Raw material cutting and rough turning
Quench and temper treatment (improving the mechanical properties of the material)
Semi-finished turning, rough turning of external cylindrical surfaces, and helical surfaces
Precision turned outer diameter and precision turned helical surface
Spiral surface quenching (improves spiral surface hardness, reduces wear rate)
Precision ground shaft ends and bearing seats
Milling keyways
Precision-ground helical surface (precision grinding of helical surfaces on screw grinding machines, reducing the roughness of helical surfaces, improving friction on the working surface, and enhancing transmission efficiency)
