Yuchai 85 / Liugong 908 Swing Motor
4 month ago
Product details
1. Basic Product Information
Sunward SWE210 Swing Motor
• Applicable Model: Sunward SWE210 Hydraulic Excavator (Operating Weight: ~21-22 tons)
• Function: Drives the upper structure (cab and working attachment) of the excavator for 360° continuous rotation, serving as a core component of the hydraulic system.
• Design Type: Low-speed, high-torque hydraulic motor with integratedSpring-Applied, Hydraulic-Released (SAHR)braking system.
Lonking LG6225 Swing Motor
• Applicable Model: Lonking LG6225 Hydraulic Excavator (Operating Weight: ~22-24 tons)
• Function: Similar to the SWE210 but optimized for Lonking’s hydraulic system pressure and flow characteristics.
• Design Type: Low-speed, high-torque hydraulic motor with braking functionality; some models may featureelectromagnetic brakingorhydraulic-mechanical composite braking.
------
2. Key Technical Parameter Comparison
【表格】
Parameter Sunward SWE210 Lonking LG6225
Type Axial piston hydraulic motor (with brake) Axial piston hydraulic motor (with brake)
Displacement ~55-65 mL/r (varies by model) ~60-70 mL/r (higher torque design)
Rated Pressure 25-28 MPa (system pressure) 26-30 MPa (up to 32 MPa in some models)
Speed Range 0-14 rpm (low-speed design) 0-13 rpm (emphasizes smooth rotation)
Continuous Torque ~4,200-5,000 N·m ~4,500-5,500 N·m
Braking Torque ≥1.5× rated torque (spring brake) ≥1.3× rated torque (composite brake)
Weight ~95-110 kg (with brake) ~100-120 kg (with brake)
Interface Size SAE standard flange (4/6 bolts) Custom flange (matches Lonking host)
Hydraulic Oil ISO VG 46 (anti-wear hydraulic oil) ISO VG 46 or VG 68 (climate-adjusted)
------
3. Structural and Functional Features
Sunward SWE210 Swing Motor
• Sealing Design:
• Dual-lip seals (pressure resistance ≥35 MPa) to prevent hydraulic oil leakage.
• Dust seal protects the input shaft from external contaminants.
• Braking System:
• SAHR braking (automatically locks upon power loss or pressure drop for safety).
• High-carbon cast iron brake disc for wear resistance and heat dissipation.
• Materials:
• Cast iron housing (impact-resistant); some models use aluminum alloy (weight reduction).
Lonking LG6225 Swing Motor
• Braking Optimization:
• Some models combine electromagnetic braking + hydraulic assistance for faster response.
• Brake wear compensation extends service life.
• Lubrication System:
• Forced lubrication (relies on main hydraulic system oil circulation) to reduce internal wear.
• Modular Design:
• Brake and motor body are separable for independent maintenance.
------
4. Common Faults and Solutions
【表格】
Fault Phenomenon Possible Causes Solutions
Weak rotation/slow speed Low system pressure, internal leakage, brake not released Check main pump pressure, replace worn pistons, adjust brake valve pressure
Vibration/noise during rotation Bearing damage, spline wear, oil contamination Replace bearings/spline sleeves, clean system, and replace hydraulic oil
Brake failure Brake piston seizure, spring fracture Clean brake chamber, replace springs and seals
Housing oil leakage Seal aging, housing cracks Replace seals; weld or replace housing for cracks
------
5. Maintenance Recommendations
Daily Checks (Every 250 Hours)
• Inspect hydraulic oil level and contamination (recommended: NAS 1638 Class 8 or ISO 4406 19/17/14).
• Clean radiator to prevent overheating.
Periodic Maintenance (Every 1,000 Hours)
• Replace hydraulic oil and filters (filter precision ≤15μm).
• Test brake response time and measure brake clearance (standard: 0.6-1.0mm).
Long-Term Storage (>30 Days)
• Run the motor for 10 minutes weekly to prevent internal corrosion.
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