Are you looking for the best slewing crane manufacturers in China? With so many top-notch companies, choosing the right one can be daunting. Let’s dive into a comparison of China’s leading slewing crane factories, highlighting their strengths, innovations, and what sets them apart in the industry.

Slewing Reducer for k3030 Tower Crane

Product Details: The slewing mechanism for tower cranes, as described, consists of several key components. These include the Slewing Motor, which can be from different series based on user requirements; the Slewing Reducer, such as the JX9 or PD03 models, which are used for deceleration and provide stable performance and large output torque; the hydraulic coupling; and the electromagnetic disk brake. The mechanism allows the crane to rotate horizontally, enabling it to reach different areas of a construction site without moving the entire structure. The motors, such as the YTRVFW132M3-4F1, adopt a modular design including a torque motor, eddy current speed adjustor,

electromagnetic brake, fan, and electric air vane. The supply ability is 1000 sets per month, with standard packing and ocean transportation[1][5].

Pros:
– Allows horizontal rotation of the crane, increasing its reach and versatility on…
– Components such as the Slewing Reducer offer compact structure, stable performan…
– High supply ability of 1000 sets per month ensures consistent availability.
– Modular design of motors includes multiple features like torque motor, eddy curr…

Cons:
– Complexity of the mechanism may require specialized maintenance and repair skill…
– Dependence on multiple components can lead to higher overall cost if any part ne…
– The need for ocean transportation may result in longer delivery times for intern…

China Single Row Four Point Contact Ball Slewing Ring …

Product Details: The single row four point contact ball slewing ring bearing is characterized by large diameters and thin sections. It is composed of two seat rings with a compact structure, where steel balls contact the circular raceway at four points. This design allows the bearing to bear axial force, radial force, and tilting moment simultaneously. The bearings are typically made from high alloy-structural steels such as 42CrMo or 50Mn, enabling them to operate normally at temperatures between -30℃ to +50℃. They are commonly used in applications such as cranes, slewing conveyers, welding manipulators, excavators, and other construction machinery.

Pros:
– Needs less axial space compared to king post arrangements.
– Open space in the centre simplifies machine design and accommodates crane compon…
– Integral gear can be machined into one of the slewing ring races, eliminating th…
– Compact structure and light weight.

Cons:
– Requires strict process control due to large diameters and thin sections.
– Limited to slow rotation and specific load conditions.

China Crane Slewing Bearing: A Comprehensive Guide

Product Details: Slewing bearings for cranes are large, rotational rolling-element bearings designed to support heavy radial, axial, and moment loads. They consist of an inner ring, an outer ring, and rolling elements such as balls or rollers. These bearings are critical in crane applications, enabling smooth and stable movement under various operating conditions. Key parameters include load capacity, friction torque, and bearing life, which are influenced by factors like bearing design, material properties, and operating conditions.

Pros:
– High load carrying capacity to handle axial, radial, and moment loads simultaneo…
– Compact and economical design with integral synthetic rubber seals to protect ag…
– Smooth and stable movement, ideal for slow-turning or slowly-oscillating heavy l…
– Available in various materials such as chrome steel, stainless steel, and plasti…

Cons:
– Complex installation and maintenance requirements to ensure optimal performance…
– Sensitive to misalignment, which can cause early bearing failure.
– Requires regular inspections and proper lubrication to maintain performance and…
– Can be heavy and require careful handling during installation to avoid damage.

Hydraulic Slewing Crane Suppliers and Manufacturers

Product Details: The hydraulic slewing crane has a lifting capacity ranging from 1.0T to 60T, with a maximum capacity of 150T. The hoisting speed under full load is between 10m/min and 30m/min. The crane is driven by hydraulic power, facilitating the slewing of the crane boom to move targets efficiently. It is equipped with a hydraulic cylinder for fast and precise luffing. Regular maintenance and inspection are necessary, including external cleaning, lubrication, and checking the conditions of the crane hook, wire rope, brake, clutch, and safety devices[5].

Pros:
– High lifting capacity, ranging from 1.0T to 150T, making it suitable for various…
– Fast and precise luffing due to the hydraulic cylinder.
– Minimal and simple maintenance with easy access to components.
– Superior anti-rust protection and approvals from major classification societies.

Cons:
– Requires regular maintenance and inspection to ensure optimal performance and sa…
– Dependent on hydraulic power, which can be a limitation in cases of hydraulic sy…

Portal Slewing Crane Suppliers and Manufacturers China

China Workboat Slewing Crane Manufacturers, Suppliers

Slewing Crane in Xinxiang, Henan, China

Product Details: The slewing crane listed is located in Xinxiang, Henan, China, and is manufactured by HT Crane. Key features include hoisting, slewing, and luffing functions that are fully hydraulic driven by a hydraulic motor set. The electric motor and pumps are mounted at the rotary base interior.

Pros:
– Fully hydraulic driven for efficient operation
– Electric motor and pumps integrated at the rotary base for streamlined design

Cons:
– Limited information available on the listing regarding specific capacities, lift…
– No details provided on safety features, maintenance requirements, or warranty

What is a slewing crane? – Knowledge

Product Details: Slewing jib cranes are versatile lifting solutions that can be mounted on walls, columns, or be mobile. They offer a range of capacities from 80 kg to 2000 kg and outreach from 2000 mm to 6000 mm. These cranes can be designed for indoor and outdoor use, with features such as adjustable jib arm lengths, various fastening options, and weatherproof designs. They often include mechanical slewing limitations, locking devices, and can be equipped with chain hoists and electrical trolleys.

Pros:
– Cost-effective and easy to install
– Versatile fastening options for different structures
– Adjustable jib arm lengths to fit specific conditions
– Suitable for both indoor and outdoor use
– Easy slewing operation due to overbraced design and sophisticated bearings
– Compact design for use in small rooms and on machines
– Infinite slewing range of 360° for mobile models

Cons:
– Limited capacity compared to larger crane types
– Requires proper anchorage for stability, especially for outdoor use
– May need additional accessories for full functionality
– Slewing range limitations in some models (e.g., 180° for wall-mounted types)
– Maintenance requirements for outdoor use to ensure durability

Factory Stable Supplied Various Size Single Row Ball Four …

Slewing Jib Crane – China Factory, Suppliers, Manufacturers

Product Details: The Sinovo CQUY55 Hydraulic Crawler Crane is a slewing jib crane with a maximum rated lifting capacity of 55 tons at a 3.5-meter radius. It features a boom length of 13-52 meters and a fixed jib length of 9.15-15.25 meters. The crane has a boom derricking angle of 30-80 degrees and is equipped with main and auxiliary winches, as well as a boom hoist. The slewing speed is 3.1 r/min, and the travel speed is 1.33 km/h. The crane has a ground bearing pressure of 0.07 MPa and a counterweight of 16+2 tons. It is designed for complex construction environments

with complete safety devices and a compact structure.

Pros:
– High-strength thin-arm steel pipe main boom, which is light in weight and improv…
– Complete safety devices and a compact structure, suitable for complex constructi…
– Unique gravity lowering function to save fuel consumption and improve work effic…
– Rotary floating function for high-altitude accurate positioning, ensuring stable…
– Self-made fragile and consumable structural parts for convenient maintenance and…

Cons:
– High weight of the crane, with a mass of 50 tons, which can be a logistical chal…
– Limited travel speed of 1.33 km/h, which may not be suitable for rapid deploymen…
– Specific ground bearing pressure requirements, which might limit its deployment…

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About Slewing Crane Factories in China

What are the main products manufactured by slewing crane factories in China?

Slewing crane factories in China primarily produce crane machinery, including various types of cranes such as tower cranes, gantry cranes, and ship unloader cranes. These factories also manufacture components like slewing rings (or slewing bearings), which are crucial for the rotation of the crane’s main structure.

Who are the major companies involved in the slewing crane manufacturing industry in China?

The major companies in the slewing crane manufacturing industry in China include XCMG Construction Machinery Co., Ltd., Shanghai Zhenhua Heavy Industries Co., Ltd., and Zoomlion Heavy Industry Science And Technology Co., Ltd. These companies are known for their significant market share and influence in the industry.

What materials are commonly used in the manufacture of slewing rings for cranes in China?

Slewing rings for cranes in China are typically made from high alloy-structural steels, such as 42CrMo and 50Mn. These materials ensure the bearings can operate effectively within a wide temperature range, from -30℃ to +70℃, and can be customized to meet specific customer needs.

How competitive is the slewing crane manufacturing industry in China?

The slewing crane manufacturing industry in China is highly competitive and continues to grow. With over 2,300 businesses operating in the sector, the competition is intense, driven by government support and the expansion of key domestic industries.

What is the market size and growth outlook for the slewing crane manufacturing industry in China?

As of 2024, the market size of the crane manufacturing industry in China, which includes slewing cranes, is approximately $220.7 billion. The industry has been growing at a CAGR of 2.2% between 2019 and 2024 and is expected to continue growing over the next five years, driven by infrastructure development and industrial expansion.