EWA17 Series Slewing Drive
Slew drive and traditional rotary products compared. The slew drive device is a new type of rotary product made of worm gear, slewing ring, shell, and motor. Since the core part adopts slewing bearing, it can simultaneously bear axial force, radial force, and overturning moment. It has the characteristics of simple installation, easy maintenance, and saving installation space to a greater extent. This product can be widely used in heavy plate transport vehicles, container cranes, truck-mounted cranes, and high-altitude operations.
Slew drive and traditional rotary products compared. The slew drive device is a new type of rotary product made of worm gear, slewing ring, shell, and motor. Since the core part adopts slewing bearing, it can simultaneously bear axial force, radial force, and overturning moment. It has the characteristics of simple installation, easy maintenance, and saving installation space to a greater extent. This product can be widely used in heavy plate transport vehicles, container cranes, truck-mounted cranes, and high-altitude operations.
Three advantages of slew drive
a.)Modularization
Due to the high integration of the slew drive, users do not have to purchase and process each part of the rotary device. To a certain extent, it also reduces the preparation process at the beginning of production, thus significantly improving labor productivity.
b.)Security
Worm gear transmission has reverse self-locking characteristics, which can realize reverse self-locking. Only worm can drive worm gear, but not worm gear. The safety factor of the main engine and slewing equipment can be significantly improved in high-altitude operation. Compared with traditional rotary products, slew drive has the advantages of simple installation, easy maintenance, and saving installation space.
c.)Simplify host design
Worm gear transmission can get a relatively large reduction ratio compared to the traditional gear transmission. In some cases, it can save the reducer parts for the main engine to reduce the purchase cost for customers and significantly reduce the failure rate of the main engine.
Performance Parameters
| Front View | Top View |
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| Output torque | Tilting moment torque | Holding torque | Axial load | Radial load | Ratio | Backlash | Weight |
| 输出转矩 | 倾覆力矩 | 保持力矩 | 轴向承载力 | 径向承载力 | 速比 | 精度 | 重量 |
| 12.96 kN.m | 142.4 kN.m | 74 kN.m | 1166 KN | 435 KN | 104:1 | <= 0.1 ° | 97Kg |
| 9564 Lbf.ft | 105000 Lbf.ft | 54600 Lbf.ft | 262000 Lbf | 97800 Lbf |
How Do Slew Drives Work?
The mechanics behind it are based on the concept of a worm gear, where a slewing bearing with external teeth meshes with a complementary worm gear with a predefined transmission ratio. Internal components are contained and assembled within cast iron or aluminum enclosures for protection and installation.
The unique design of the slewing drive enables it to transmit high output rotational torque using two vertical planes with a relative speed ratio to its input. As the worm gear rotates with a low input torque on the horizontal plane, its hardened teeth transmit the rotational motion to the outer rotating teeth. This force generates rotation about the vertical axis of the rotary drive by the rotary outer ring.
Versatility and weight allow slewing drives as a straightforward solution to rotation-related problems. The use of a worm gear design provides room for a variety of low torque inputs of the slewing industry to transmit or maintain high torque applications. Slewing drives can be found in various construction and heavy machinery equipment.
Application
When it is necessary to realize the power transmission of enormous torque, the information of higher precision motion, or the selection of the mechanism that requires high compactness and integrity of the body structure, the slewing drive is the best solution. The slewing drive can be used on any occasion requiring full-circle rotation and variable speed. Slewing drive is widely used on the following occasions:
- Flatbed truck
- Wind power
- Grab Machinery
- Aerial work vehicle
- Crane
- Excavator
- Test bench
- Communication facilities
- Solar energy generation
- Artificial intelligence
- Medical
- Water treatment facility
- Robot
Custom Slewing Drives
HZPT provides its customers with a high-quality application-based slew drives product line. Sizes range from 7.5" (200mm) up to 20" (500mm) in ID. Standard hydraulic or electric motors rotate the drive-through standard worm shaft inputs and can be assembled upon customer request, depending on their application.
Our engineers are well equipped with the tools and technology necessary to work alongside our customers. We work to understand their applications, design requirements, project scope, and loads and help identify the most suitable products. We are ready to provide technical support and slew drive recommendations based on application requirements.
For over three decades, slewing rings and slew drives have proven their worth in the most varied application areas. We've been supplying products to many of our customers for decades. We'd love to have the opportunity to win you over with our technological competence, too!
FAQ
1. What is the producing process?
A: Production process including raw material cutting, machine processing, grinding, accessories cleaning, assemble, cleaning, stoving, oil coating, cover pressing, testing, and package.
2. How to control the product's quality?
A: If there is stock, it is within seven days; if there is no stock, it is 25-45 days, depending on the quantity.
4. Are you a trading company or a manufacturer?
A: We have our factory with 20 years of experience in slewing drive; our type is factory + trade.
5: What are your terms of payment?
A: Stocks goods,100% prepaid. If goods need to produce,30% prepaid and the balance paid before shipment. For big orders over 50000 USD, we can accept L/C At sight.
6. What is your MOQ?
A: Small quantity, by express, such as DHL, UPS, TNT FEDEX. If large quantity, by sea or air.
We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.
Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.
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