Doosan DX235LCR-5 170303-00040A 170301-00027 swing motor for excavator parts

To improve the energy efficiency and reliability of slewing motors, modern excavators employ the following advanced technologies:

1. Variable Displacement Control: Uses electro-proportional valves to adjust the swash plate angle, enabling automatic switching between high and low speeds for energy savings and power.

2. Lightweight Design: Utilizes high-strength aluminum alloy housings to reduce overall weight while maintaining structural integrity.

3. Smart Braking System: Integrates ECU control to achieve soft braking, minimizing hydraulic shock during stops.

4. Integrated Hydraulic Circuit: Incorporates anti-shock valves and make-up valves internally, reducing external piping and failure rates.

Product Description

Common Faults and Troubleshooting for Slewing Motors

Excavators of different tonnages require slewing motors with different specifications, such as:

• Mini Excavators (<10 tons): Use gear motors for simple structure and low cost.

• Medium Excavators (10~30 tons): Typically use axial piston motors for balanced torque and speed.

• Large Excavators (>30 tons): Employ variable displacement motors with planetary reducers for ultra-high torque.

To ensure long-term stable operation of the slewing motor, the following maintenance should be performed regularly:

1. Hydraulic Oil Management: Keep the oil clean, replace filters periodically, and prevent contaminants from damaging precision components.

2. Seal Inspection: Check for oil leaks in the motor shaft seals and end covers to avoid insufficient lubrication due to hydraulic oil leakage.

3. Brake Testing: Regularly verify if the brake releases properly to prevent overheating caused by brake drag.

4. Abnormal Noise Monitoring: If unusual noises occur during rotation, it may indicate bearing or gear wear, requiring timely disassembly and inspection.

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Company Information

Our Company

Our Services

In-sale service:

• 1: Once we receive the order list, we will confirm the exact model and quantity one by one, then place the order list to each factory.
• 2: We will track the production progress and quality, check the exact model and quantity one by one before delivering. Because we’re exporting agent for factories, so our leading time is shorter, quality tracking is more strict.
• And you can buy the all excavator spare parts from our company, because we’re professional in whole excavator spare parts, not only for some products like factories.
• 3: Lowest sea freight cost and best service. We’re cooperating with our forwarders for many years, so we can get the best price and service for each customer.

After-sale service:

• After-sale service is most important in each business, we will do the below things in each order:
• 1: Tracking the shipment and inform the customer before the Arrival Date.
• 2: Check the goods together with our customers and tracking the quality during the use condition.
• 3: We will charge all questions if you buy from me because reputation is most important in exporting business.

Delivery

• 1.Outside packing: standard export carton packing;
• 2.According to orders, pack the spare parts one by one in a small plastic bag;
• 3.Put them into small carton boxes one by one;
• 4.Put the packed small carton boxes into bigger carton boxes one by one;
• 5.Put the bigger carton boxes into wooden boxes if necessary especially for
• the shipments by sea.

Exhibition

In the past few years, in order to sell our products all over the world, we have participated in many exhibitions, such as Beijing Construction Machinery Exhibition in 2017, Shanghai Bauma Exhibition in 2018, German Exhibition in 2019, and we will continue to participate in various exhibitions in the future to let our products go to the world.

Processing&Testing

Hot Production

FAQ

• 1.Are you a trader or a manufacture?

• A: We run an industry &trade integration business.

• 2.Do you test all your goods before delivery?

• A: Yes, we check the whole procession until our customer receives the parcels.

• 3.How long for delivery time after the payment?

• A: Usually, we will deliver goods within 2 days.

• 4.How can I trace my order during the time?

• A: We will send you the tracking number as the goods are sent.

• 5.What service can you provide if we buy your brand products?

• A: we will offer online consultation and other small gifts.

• 6.What will you do if you receive a quality complaint?

• A: Reply within 24 hours. If it confirms the product has a quality problem, we will make corresponding compensation.

GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED founded in September 2013, loed in the engineering machinery market in Guangzhou, China. At present , we have one shop, one warehouse and one office as well as a professional team for purchasing, selling, packing, shipping and after-sale service.

Our main products are Excavator Hydraulic spare parts, Hydraulic pump, Swing motor, Travel motor, Final drive, Swing gearbox, Travel gearbox, Control valve,Monitor,Controller, Hydraulic cylinder and other hydraulic items with genuine and aftermarket quality. Until now, our products enjoy high reputation all over the world and have been exported to more than 150 countries and regions, spreading all over the Middle East, Southeast Asia, Africa, North America, South America, Europe and Oceania with its own brand "Belparts" are widely acclaimed by foreign customers.

In February 2023, Belparts Yunnan Tourism Team Building

In April 2024, Belparts participated in the Brazil Construction Machinery Exhibition and visited local clients in Brazil.

In April 2024, Belparts participated in the French Construction Machinery Exhibition and visited clients in France and Spain

In May 2024, Belparts Travel Thailand