China supplier 50ton Heavy Duty Cast Iron Motorized Worm Screw Jack Elevator near me supplier

Item Description




Product Description

1, The gear is made of higher-energy lower-carbon alloy metal by carburizing and quenching. The hardness of

the tooth floor is up to HRC58-62. The gears are groun d grinding engineering with substantial precision and
excellent contact.
2, Large transmission effectiveness: one phase is greater than ninety six.5%, double amount is increased than 93%, third
stage is higher than ninety%.
three, Clean procedure and minimal noise.
four, Little size, gentle weight, extended service lifestyle and high carrying ability.
five, Simple to disassemble and simple to put in.

Expressed Strategy Of Product


Item Parameters



How to Decide on a Screw Jack? Some inquiries you want response pls.

Q1: The capability is to load ? KG (it signifies how numerous Kg or Tons the screw jack need to have to lift or fall?)

The stroke is ? mm (it indicates the screw shaft size, such as 500mm)

The lifting speed is ? mm/2nd (it indicates how much time you want to use to finish the stroke?
Such as I want to use 20 seconds to finish the 500mm stroke then can occur out the velocity is 25mm/s )

Screw jack SWL2.5-one hundred twenty overall performance parameters table as the below:
Q2: Which the screw best you require? Response: I require (A B C D E F).
Q3: Handbook type (Hand wheel driven) or electrical motor driven sort? Response: I need kind.
This autumn: Screw movement (screw travelling up and down when functioning) or Nut movement (the nut travelling up
and down when doing work)? Upright or Inverted? Reply: I need to have (A B E F)

Our Positive aspects



Packaging & Delivery


Organization Profile

Xihu (West Lake) Transmission Tools Co., Ltd. located HangZhou city, ZHangZhoug, as 1 professional
producer and exporter of cycloidal pin wheel reducer,worm reducer, gear reducer, gearbox ,
AC motor and relative spare components, owns prosperous knowledge in this line for a lot of a long time.

We are 1 direct manufacturing unit, with innovative creation equipment, the robust improvement team and
producing capacity to provide high quality products for buyers.

Our merchandise commonly served to various industries of Metallurgy, Chemical compounds, textile,medication,picket
and many others. Main marketplaces: China, Africa,Australia,Vietnam, Turkey,Japan, Korea, Philippines…

Welcome to request us any concerns, good provide usually for you for prolonged term business.


Q: Are you trading business or manufacturer?
A: We are manufacturing facility.

Q: How lengthy is your shipping time?
A: Typically it is 5-ten times if the goods are in inventory. or it is 15-20 times if the products are not in stock.

Q: Can we get 1 computer of every single merchandise for high quality testing?
A: Sure, we are happy to acknowledge trial get for quality screening.

Q:How to choose a gearbox which fulfills your necessity?
A:You can refer to our catalogue to decide on the gearbox or we can support to select when you offer
the technological data of essential output torque, output speed and motor parameter and so on.

Q: What information shall we give prior to placing a purchase order?
A:a) Type of the gearbox, ratio, input and output type, enter flange, mounting situation, and motor informationetc.
b) Housing colour.
c) Buy quantity.
d) Other particular requirements.

How to Pick the Correct Worm Shaft

You may possibly be curious to know how to select the right Worm Shaft. In this article, you will learn about worm modules with the identical pitch diameter, Double-thread worm gears, and Self-locking worm push. When you have selected the correct Worm Shaft, you will find it less difficult to use the tools in your property. There are a lot of rewards to selecting the right Worm Shaft. Go through on to find out much more.
worm shaft

Concave condition

The concave shape of a worm’s shaft is an critical characteristic for the layout of a worm gearing. Worm gearings can be discovered in a extensive variety of styles, and the simple profile parameters are accessible in skilled and company literature. These parameters are utilized in geometry calculations, and a choice of the appropriate worm gearing for a distinct software can be dependent on these needs.
The thread profile of a worm is defined by the tangent to the axis of its primary cylinder. The enamel are formed in a straight line with a somewhat concave condition alongside the sides. It resembles a helical gear, and the profile of the worm alone is straight. This type of gearing is typically employed when the variety of enamel is greater than a certain limit.
The geometry of a worm equipment relies upon on the sort and manufacturer. In the earliest days, worms had been made equivalent to basic screw threads, and could be chased on a lathe. In the course of this time, the worm was usually made with straight-sided equipment to generate threads in the acme airplane. Later on, grinding techniques enhanced the thread finish and decreased distortions ensuing from hardening.
When a worm gearing has several tooth, the pitch angle is a essential parameter. A better pitch angle boosts efficiency. If you want to boost the pitch angle with out increasing the amount of enamel, you can substitute a worm pair with a various number of thread starts. The helix angle need to improve even though the heart distance stays continuous. A larger pitch angle, even so, is virtually never utilized for energy transmissions.
The minimum amount of gear tooth is dependent on the angle of stress at zero gearing correction. The diameter of the worm is d1, and is based mostly on a known module benefit, mx or mn. Typically, larger values of m are assigned to greater modules. And a more compact number of teeth is called a low pitch angle. In case of a minimal pitch angle, spiral gearing is utilised. The pitch angle of the worm equipment is smaller than 10 degrees.
worm shaft

Numerous-thread worms

Multi-thread worms can be divided into sets of one particular, two, or 4 threads. The ratio is established by the number of threads on each and every set and the quantity of tooth on the equipment. The most typical worm thread counts are 1,2,4, and 6. To discover out how a lot of threads you have, rely the start and end of each and every thread and divide by two. Utilizing this strategy, you will get the appropriate thread count every single time.
The tangent plane of a worm’s pitch profile adjustments as the worm moves lengthwise together the thread. The guide angle is finest at the throat, and decreases on each sides. The curvature radius r” varies proportionally with the worm’s radius, or pitch angle at the regarded position. Therefore, the worm sales opportunities angle, r, is improved with diminished inclination and decreases with rising inclination.
Multi-thread worms are characterized by a consistent leverage between the gear area and the worm threads. The ratio of worm-tooth surfaces to the worm’s length may differ, which allows the wormgear to be modified in the exact same course. To optimize the gear make contact with among the worm and gear, the tangent partnership amongst the two surfaces is ideal.
The efficiency of worm gear drives is mostly dependent on the helix angle of the worm. Several thread worms can increase the efficiency of the worm gear push by as much as 25 to 50% when compared to one-thread worms. Worm gears are made of bronze, which reduces friction and heat on the worm’s tooth. A specialized device can lower the worm gears for highest performance.

Double-thread worm gears

In several distinct applications, worm gears are used to generate a worm wheel. These gears are exclusive in that the worm can not be reversed by the electrical power utilized to the worm wheel. Due to the fact of their self-locking qualities, they can be used to stop reversing movement, despite the fact that this is not a reliable purpose. Purposes for worm gears include hoisting equipment, elevators, chain blocks, fishing reels, and automotive electricity steering. Because of their compact measurement, these gears are frequently utilized in purposes with restricted room.
Worm sets normally exhibit much more dress in than other varieties of gears, and this means that they require much more constrained get in touch with patterns in new components. Worm wheel teeth are concave, generating it difficult to evaluate tooth thickness with pins, balls, and equipment tooth calipers. To measure tooth thickness, even so, you can evaluate backlash, a measurement of the spacing between teeth in a equipment. Backlash can range from one worm equipment to an additional, so it is crucial to check the backlash at numerous factors. If the backlash is different in two areas, this signifies that the tooth could have different spacing.
One-thread worm gears supply substantial pace reduction but reduced performance. A multi-thread worm equipment can give high performance and high pace, but this arrives with a trade-off in conditions of horsepower. Even so, there are many other purposes for worm gears. In addition to hefty-duty purposes, they are frequently utilized in gentle-obligation gearboxes for a variety of functions. When used in conjunction with double-thread worms, they let for a substantial pace reduction in 1 phase.
Stainless-steel worm gears can be used in damp environments. The worm gear is not susceptible to rust and is best for wet and damp environments. The worm wheel’s smooth surfaces make cleansing them simple. Even so, they do call for lubricants. The most common lubricant for worm gears is mineral oil. This lubricant is made to safeguard the worm travel.
worm shaft

Self-locking worm travel

A self-locking worm drive prevents the system from shifting backward when the motor stops. A dynamic self-locking worm travel is also feasible but does not contain a keeping brake. This type of self-locking worm travel is not susceptible to vibrations, but might rattle if introduced. In addition, it might need an additional brake to preserve the system from relocating. A positive brake may possibly be necessary for basic safety.
A self-locking worm drive does not let for the interchangeability of the pushed and driving gears. This is unlike spur equipment trains that enable each to interchange positions. In a self-locking worm push, the driving gear is often engaged and the driven equipment continues to be stationary. The generate system locks instantly when the worm is operated in the incorrect method. Several sources of data on self-locking worm gears consist of the Machinery’s Handbook.
A self-locking worm generate is not hard to create and has a fantastic mechanical advantage. In truth, the output of a self-locking worm travel can not be backdriven by the enter shaft. DIYers can develop a self-locking worm generate by modifying threaded rods and off-the-shelf gears. Nonetheless, it is easier to make a ratchet and pawl mechanism, and is considerably less high-priced. Nonetheless, it is crucial to understand that you can only generate 1 worm at a time.
Yet another benefit of a self-locking worm generate is the truth that it is not achievable to interchange the enter and output shafts. This is a significant advantage of using these kinds of a mechanism, as you can achieve substantial gear reduction with no escalating the dimension of the equipment box. If you might be considering about purchasing a self-locking worm gear for a distinct application, take into account the adhering to tips to make the appropriate choice.
An enveloping worm equipment established is greatest for applications requiring substantial precision and performance, and least backlash. Its teeth are formed differently, and the worm’s threads are modified to increase area speak to. They are more high-priced to manufacture than their single-begin counterparts, but this variety is ideal for programs where accuracy is essential. The worm push is also a fantastic option for heavy trucks because of their massive dimensions and high-torque capacity.

China supplier 50ton Heavy Duty Cast Iron Motorized Worm Screw Jack Elevator     near me supplier China supplier 50ton Heavy Duty Cast Iron Motorized Worm Screw Jack Elevator     near me supplier