NM Vertical Low Noise Spiral Elevator with Worm Gear and Worm

NM Screw Jack

NMSeries worm gear screw jacks are a fundamental lifting component, conforming toJB/T8809—1998(Original)JB/ZQ4391—86Standard. Load capacity2.5—120TComprised of advantages such as compact structure, small size, light weight, wide power sources, low noise, easy installation, flexible operation, diverse functions, multiple matching forms, high reliability, and long service life. Capable of accurately controlling and adjusting the lifting or propulsion height according to a certain program. It 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 manufactured according to customer requirements. The device can be self-locking.

Screw jack, also known as a helical drive mechanism. It is primarily used to convert rotary motion into linear motion or vice versa. There are those primarily for energy transmission, such as spiral presses and jacks; others for motion transmission, like the feed screws of machine tool tables; and still others for adjusting the relative positions of parts, such as spiral drive mechanisms. Screw jacks come in two types: sliding friction and rolling friction.

Gearbox material

Aluminum bronzeZQAl9-4High strength, excellent wear resistance, suitable for operation under normal loads.

Tin bronzeZCuSn10Pb1High hardness, excellent wear resistance, not prone to locking, with good casting and machining properties, suitable for operation under high loads and speeds. Our companyDMHelical gears for the series products are all made of10-1Tin bronze.

Processing Technology

Raw material cutting and rough turning

Quench and temper treatment (improving the mechanical properties of the material)

Half-finished lathe external circle rough lathe helical surface

Superfinishing external round surfaces and helical surfaces

Spiral surface quenching (increases spiral surface hardness, reduces wear rate)

Precision ground shaft ends and bearing seats

Milling keyways

Precision ground helical surfaces (precision ground worm surfaces on worm grinding machines, reducing the roughness of helical surfaces, improving the friction of the working surface, and enhancing transmission efficiency)

Screw Thread Material

20CrMnTiSurface carburizing hardening treatment offers excellent workability, minimal processing deformation, and good fatigue resistance.

40CrAxial components commonly undergo tempering treatment, resulting in excellent mechanical properties with high strength and good toughness.

45#Heat-treated steel offers high strength and good machinability.

Processing Technology

Raw material cutting and rough turning

Quench and temper treatment (improving the mechanical properties of the material)

Half-finished turned outer circle, rough turned helical surface

Precision turned outer diameter and precision turned helical surface

Helical surface quenching (increases the hardness of the helical surface, reduces wear rate)

Precision ground shaft heads and bearing positions

Milling keyways

Precision Ground Spiral Surface (precision ground spiral surface on worm grinding machines, reduces spiral surface roughness, improves working surface friction, and enhances transmission efficiency)