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SAJ Series Anti-Fall Safety Device

SAJ series anti-fall safety device is the most important device in the rack and pinion crane, which can effectively prevent the overspeed operation of the lifting cage and reduce the occurrence of lifting cage falling accidents. Effectively reduce cage falling accidents. It is the most important safety equipment of rack and pinion structure on building elevator. It can limit the downward acceleration of the cage, thus preventing cage fall accidents.
The safety device is the best lightning arrester, which limits the excessive downward movement of the lift, prevents the lift falling accident, and makes the device absolutely reliable. It is equipped with anti-drop protection device, which can ensure the safety and reliability of personnel and materials when the hanging cage falls.
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XX87 Transmission Mechanism

The XX77/XX87 series transmission unit used in construction elevators is a transmission device specially designed for elevators.
The XX77/XX87 series drive unit has the following features:
(1) Efficient and stable: The use of advanced transmission technology and high-quality materials manufacturing, with efficient and stable transmission performance to ensure the smooth operation of the lift.
(2) Large torque output: the reducer design of the transmission unit is reasonable, and can provide a larger torque output to adapt to the work needs of the lift.
(3) Precise control: The transmission unit is equipped with precise brakes and control systems, which can realize the precise control of the lift and ensure the safety and accuracy of the work.
(4) Durable and reliable: The transmission unit adopts high-strength materials and precision machining technology, which has good durability and reliability, and can adapt to long-term and high-intensity working environment.
(5) Easy maintenance: The transmission unit is simple in structure and easy to maintain, reducing the time and cost of repair and maintenance.
The XX77/XX87 series transmission unit used in the construction lift is a transmission device specially designed for the lift, which has the characteristics of high efficiency and stability, large torque output, precise control, durable and reliable and easy maintenance, etc., providing reliable power support for the operation of the lift.
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TSK99 Type Transmission Mechanism

TSK99 hypoid gear reducer double drive is a common transmission mode, often used in the need for large torque output and speed reduction occasions. The reducer is a device that converts the high-speed rotating motion of the input shaft into the low-speed and high-torque rotating motion of the output shaft.
Dual drive reducer has the following characteristics:
(1) Provide greater torque output: through the series of two reducers, the torque of the input shaft can be amplified to provide greater output torque.
(2) Reduce speed: the role of the reducer is to reduce the speed of the input shaft, through the double drive, you can further reduce the speed of the output shaft, suitable for occasions with low speed requirements.
(3) Increase transmission reliability: dual drive can increase the reliability and stability of the transmission, once one of the reducer fails, the other reducer can still continue to work to ensure the normal operation of the equipment.
(4) High flexibility: the dual drive of the reducer can be adjusted and configured according to specific needs to adapt to different workplaces and requirements.
Double drive reducer is a common transmission mode, through the linkage of two reducers, to achieve greater torque output and speed reduction, suitable for the occasion of higher power requirements, improve the reliability and stability of the transmission.
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ZLP Series Suspended Platform

Outdoor electric suspended platform, is a kind of suspended lifting equipment for aerial work. The outdoor electric suspended platform is usually suspended on the outside wall of the building through the wire rope, and can be moved in the vertical and horizontal directions. They are driven by electric motors, providing smooth movement and the convenience of working at altitude.
Outdoor electric suspended platform are widely used in the cleaning, maintenance, decoration and construction of building exterior walls. They can provide safe and efficient work platforms that allow workers to easily reach high places for work.
Outdoor electric suspended platform has the following characteristics:
(1) Provide a stable working platform to ensure the safety of workers.
(2) Can be carried out according to the need for vertical and horizontal direction of movement, to adapt to different positions and work requirements.
(3) Electric drive, simple operation, smooth running.
(4) Equipped with safety protection devices, such as limiters, leakage protection, etc., to ensure the safety of the work.
(5) The structure is strong and durable, suitable for a variety of harsh outdoor environments.
Outdoor electric suspended platform is an important high-altitude working equipment, which provides convenience and safety guarantee for the maintenance and construction of building exterior walls, and improves work efficiency and quality.
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SC Series Construction Hoist

Construction lift is a kind of lifting equipment used for high-altitude work, also known as construction lift or building construction lift. Construction lifts usually consist of one or more vertically moving platforms that can be raised and lowered in a vertical direction. They are driven by hydraulic systems or electric motors to provide stable, safe vertical motion.
Construction lifts are widely used in construction sites, high-rise buildings, bridge construction, maintenance and decoration work and other fields. They can be used to lift workers, materials and equipment to high places to facilitate construction workers to carry out various tasks, such as installation, maintenance, cleaning, etc.
Construction lifts have the following characteristics:
(1) Provide efficient and safe vertical transportation capabilities, saving labor and time costs.
(2) The height and speed can be adjusted according to the need to adapt to different work requirements.
(3) With a stable structure and safety protection device to ensure the safety of staff.
(4) Simple operation, easy to control and maintain.
In general, the construction elevator is an important construction machinery and equipment, which provides convenience and safety for high-altitude work, and improves construction efficiency and work quality.
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TCW Series Transmission Mechanism

TCW series worm gear reducer three transmission mechanism is a common transmission mode, often used for large torque output and speed reduction occasions. The reducer is a device that converts the high-speed rotating motion of the input shaft into the low-speed and high-torque rotating motion of the output shaft.
Three drives of turboworm reducer have the following characteristics:
(1) Provide greater torque output: through the series of three reducers, the torque of the input shaft can be amplified to provide greater output torque.
(2) Reduce speed: the role of the reducer is to reduce the speed of the input shaft, through the double drive, you can further reduce the speed of the output shaft, suitable for occasions with low speed requirements.
(3) Increase transmission reliability: three drives can increase the reliability and stability of the transmission, once one of the reducer fails, the other reducer can still continue to work to ensure the normal operation of the equipment. And worm gear transmission noise is less, more to ensure the smooth operation of the construction elevator.
(4) High flexibility: the three drives of the reducer can be adjusted and configured according to specific needs to adapt to different workplaces and requirements.
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SAJ Series Anti-Fall Safety Device
XX87 Transmission Mechanism
TSK99 Type Transmission Mechanism
ZLP Series Suspended Platform
SC Series Construction Hoist
TCW Series Transmission Mechanism

High-Tech Enterprise

Specializes in Construction Hoist over 20 Years

Nantong Haibao Construction Machinery Co., Ltd. was founded in 2005, is a focus on the production of construction hoists transmission mechanism, motors, reducers and SAJ anti-fall safety device, and also engaged in tower cranes and construction hoists rental business.

Our company covers an area of more than 10,000 square meters, with large CNC punching machine, die-casting machine, machining center, laser cutting machine, CNC lathe and other processing equipment, to achieve from raw material casting to processing to assembly, testing, sales as one of the comprehensive production base.

Industry Experience

Patent

Employee

m²

Company Area

Development History

1993

Jinhai Town friction Materials Factory was established, which mainly produced electrokinetic friction plates.
1997

The introduction of foundry technology, manual lathes, milling machines and other processing equipment to produce brake wheels for aluminum lifting motors.
2003

Nantong Xingxiang Friction Electromechanical Co., Ltd. was established to introduce anti-fall tester, die-casting machine, CNC machining center and other equipments, and began to produce anti-fall safety devices for construction lifts.
2005

Began to produce the reducer for construction elevator. At the same time Nantong Haibao Construction Machinery Co., Ltd. to produce construction lifts and lease construction lifts and tower cranes
2013

The company celebrated its 10th anniversary.
2023

The company celebrated its 20th anniversary.

1993
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2023

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News Center

What is the difference between a synchronous and asynchronous motor

2026-02-13

You should learn how an electric motor works before picking one for your machine. The biggest difference is that a synchronous motor keeps the same speed, but an asynchronous motor can change its speed. Electric motors make machines like construction hoists and cranes move.

2026-02-13

Construction Lift Equipment Hoist Transmission Unit1.png

How asynchronous motor works

2026-02-12

You see an asynchronous motor working every day. This electric motor uses electromagnetic forces. It changes mechanical energy into movement. You can find this motor in many machines and tools for building. Nantong Haibao Construction Machinery Co., Ltd. is a top company.

2026-02-12

What Is A Lift in Construction

2026-02-11

A construction lift is used to carry people and materials to elevated heights, making work safer and more efficient. These machines, including hoists, elevators, and scissor lifts, are essential for various construction tasks. Each construction lift is designed for specific job requirements.

2026-02-11

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Is a focus on the production of construction hoists transmission mechanism, motors, reducers and SAJ anti-fall safety device, and also engaged in tower cranes and construction hoists rental business.

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Add: South Renmin Road Jinhai Town, Qidong City, Jiangsu Province, CHINA