MSF-180VP Travel Motor
Brand: KYB (Kayaba), China-made alternatives: Aidi Precision, CCHC
Type: Axial piston hydraulic travel motor with reduction gear (final drive)
Applicable Excavator Class: 28–35 tonnage excavators
1. Main Specifications
- Model: MSF-180VP (also marked as MSF180VP, variant: MSF-180VP-G01)
- Displacement: Approx. 180 mL/r
- Maximum Working Pressure: 35 MPa
- Output Torque: 8,000–9,000 N·m (complete assembly)
- Rotation Speed Range: 0–200 rpm
- Gear Ratio: Approx. 1:45
- Mounting Flange: 8-hole / 12-hole, standard mounting for 30-ton class excavators
- Weight: 180–200 kg (complete assembly)
2. Construction & Components
Motor Section
Adopts axial piston & swash plate structure for high pressure and high torque.
Equipped with counterbalance valve and brake valve to prevent rolling and realize parking brake.
Bidirectional rotation with smooth forward and reverse switching.
Planetary Gear Reducer
Three-stage planetary gear design for large reduction ratio and high output torque.
Gears made of high-strength alloy steel with excellent wear and impact resistance.
Built-in floating oil seal for effective dustproof and leakage-proof performance.
Output Shaft & Connection End
Splined shaft design for high torque transmission.
Directly matched with excavator drive sprocket to drive crawler tracks.
3. Compatible Models
- Sany: SY335, SY365, SY305
- Kobelco: SK290, SK350
- Sumitomo: SH360
- Case: CX360
- XCMG: XE335, XE370
- Hyundai / Doosan: R335, DH370
4. Features & Advantages
- High torque density: Dedicated for 30-ton class excavators, powerful performance for climbing and dozing operations.
- Reliable & durable: Long service life and low failure rate with piston and planetary gear structure.
- Integrated brake system: Built-in parking brake and counterbalance valve to avoid downhill rolling.
- Good interchangeability: Motor head is fully interchangeable with MAG-180VP.
- Mature domestic replacement: Direct replacement for original KYB units with cost-effective performance.
5. Model Differentiation
- MSF-180VP: Standard version, universal for 30-ton class excavators
- MSF-180VP-G01: Custom flange & port for specific host machines
- MAG-180VP: Same platform motor head, fully interchangeable with MSF-180VP
I. Core Specifications
• Model: MSF-180VP-G-1 (may vary depending on version or configuration)
• Type: Hydraulic travel motor, typically featuring a planetary gear reduction mechanism for high torque output and low-speed stability.
• Compatible Machinery: Widely used in excavators and other construction equipment, such as Sany SY335, SY365, and similar models from other brands.
• Output Torque: Varies by model and configuration but generally meets the travel demands of medium-to-large excavators.
• Speed Range: Designed for low-speed, high-torque operation, suitable for excavator travel and climbing on various terrains.
• Material & Process: Constructed from high-strength alloy steel or aluminum alloy, precision-machined and heat-treated for wear resistance and reliability.
II. Functional Features
1. Efficient Power Transmission: Utilizes a planetary gear reduction mechanism to convert hydraulic energy into mechanical energy, driving excavator travel.
2. Stable & Reliable: Reasonably designed and compactly structured, ensuring stable operation under harsh conditions and reducing failure rates.
3. Easy Maintenance: Modular design facilitates disassembly and repair, lowering maintenance costs and downtime.
4. Strong Compatibility: Adaptable to various excavator brands and models, meeting diverse user needs.
III. Application Scenarios
• Excavator Travel Systems: Serves as a core component, driving excavators to travel and climb on different terrains.
• Other Construction Equipment: Certain models of the MSF-180VP Travel Motor may also be used in other machinery requiring travel functionality, such as drilling rigs and pile-driving equipment.
IV. Market & Suppliers
• Major Suppliers: Includes KYB (Japan), Guangzhou HuiLian Machinery, Qingdao Likchuan Hydraulics, and other renowned domestic and international companies.
• Price Range: Varies by model, configuration, and supplier, with new units typically ranging from several thousand to tens of thousands of USD. Used or refurbished units may be cheaper but carry quality risks.
• After-Sales Support: Reputable suppliers usually offer a warranty period and support online technical assistance and spare parts supply.
