Swing Motor Assembly for XCMG 35, LGSD 35/36, VOLVO 35D
2 week ago
Product details
Swing Motor Assembly for XCMG 35, SDLG 35/36, VOLVO 35D
1. Product Overview
This is a complete integrated swing motor assembly, specially engineered to fit XCMG 35 mini excavator, SDLG 35, SDLG 36 and Volvo 35D compact excavators. The unit combines a piston type hydraulic swing motor with built-in reduction gearbox, parking brake and anti-reverse valve assembly. As the core component of the slewing hydraulic system, it provides torque to rotate the upper carriage, enabling 360-degree rotation of the excavator cab and working arm. It keeps stable slewing performance during digging, grading and truck loading operations, and features automatic braking to hold position on slopes. It is fully interchangeable with original OEM parts for direct replacement without modifying mounting dimensions or hydraulic piping.
2. Key Model & Matching Information
- Full Name: Slewing Swing Motor Assembly with reducer and brake
- Compatible Equipment: XCMG 35, SDLG 35, SDLG 36, Volvo 35D mini excavators
- Structure: Integral piston hydraulic motor + planetary reduction gear set
- Built-in components: Multi-disc parking brake, counterbalance valve, anti-shock valve
3. Main Technical Parameters
Item Specification
Type Axial piston hydraulic motor assembly
Rated working pressure 22MPa
Max peak pressure 28MPa
Displacement Standard displacement matched for 3.5-ton class mini excavators
Slewing speed 8~12 rpm (upper structure rotation speed)
Brake type Hydraulic release, spring applied mechanical parking brake
Hydraulic fluid ISO VG46, VG68 anti-wear hydraulic oil
Operating temperature -20℃ ~ +90℃
Mounting pattern Standard flange installation matching original footprint
Internal structure High strength piston and cylinder block design
4. Working Principle
High-pressure oil flows out from the main hydraulic system and enters the swing hydraulic motor. The hydraulic piston motor converts hydraulic pressure into mechanical rotary torque. The integrated planetary reducer reduces rotating speed and amplifies output torque to drive the upper body slewing motion.
When the operator releases the joystick, the spring-loaded multi-disc brake engages automatically to lock the turret firmly and prevent free rotation on inclined ground. The built-in counterbalance valve absorbs impact pressure during start and stop, avoiding jerky movement and protecting the hydraulic system from pressure spikes.
5. Core Advantages
1. Universal design fits four mainstream 3.5-ton excavator models, greatly reducing spare parts inventory.
2. Integrated unit with motor, gearbox and brake as one piece, easy for field installation and maintenance.
3. Robust piston structure of the hydraulic piston motor delivers high torque with low internal leakage.
4. Built-in shock absorption valve eliminates slewing jerk, improving operating smoothness.
5. Heavy-duty mechanical parking brake prevents slipping on slopes, enhancing operation safety.
6. Exact same installation dimensions as original parts, plug-and-play replacement.
6. Application Scenarios
This swing motor assembly is exclusively used on 3.5-ton compact excavators, widely applied in urban construction, pipeline laying, landscaping, indoor demolition and narrow site work. It serves as the key component of the machine’s hydraulic system to realize stable slewing action.
7. Common Failures & Replacement Guide
Replace the complete assembly if the following issues occur:
- Turret cannot slew or slewing power is weak
- Abnormal knocking or grinding noise during rotation
- Oil leakage from motor shaft seal or joint surface
- Upper structure slides automatically on slopes (brake failure)
- Violent impact when starting or stopping slewing movement
Similar Video Recommendation
<
>
Bossgoovideo.com Contact Now
If you are interested in the product, contact Bossgoovideo.com for more information
- *To:
- Ningbo Hengnuo Hydraulic Drive Co.,Ltd
- *Message:
-
Submit
Disclaimer :
The information of Bossgoovideo.com limited shown above is provided by the user or collected on the network. Video 2B does not guarantee the authenticity,accuracy and legitimacy of Bossgoovideo.com limited information. Video 2B does not involve legal relationships and disputes between users arising from
transactions other than secured transactions on this website. Disputes shall be settled by you through negotiation.
If you are the person in charge or relevant employee of this enterprise, if you find that the enterprise information is incorrect or want to manage thiscompany, please contact us jacklee1558@gmail.com, after you claim the enterprise, you can obtain management permission, publish supplyand demand information, bring consulting orders, and remove page advertisements.
Suppliers
Ningbo Hengnuo Hydraulic Drive Co.,Ltd
Audited supplier
4 year
Main Product:
hydraulic motor,
gear box,
hydraulic pump,
hydraulic valve ,
hydraulic winch,
hydraulic system