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Komatsu PC300-7 PC340-7 PC350-7 Final Drive Motor 708-8H-00320 Heavy Excavator Hydraulic Drive Assembly High Torque Travel
| Place of Origin | China |
|---|---|
| Brand Name | IRON CAVALRY |
| Certification | CE， ISO |
| Model Number | Komatsu PC300-7 PC340-7 PC350-7 Final Drive Motor 708-8H-00320 Heavy Excavator Hydraulic Drive Assembly High Torque Travel |
| Minimum Order Quantity | 1 PCS |
| Price | Negotiable price |
| Packaging Details | Wooden case or as required |
| Delivery Time | 5-8 Weekdays |
| Payment Terms | Western Union,T/T |
| Supply Ability | 300pcs /Month |
Product Details
| Product Name | Komatsu PC300-7 PC340-7 PC350-7 Final Drive Motor 708-8H-00320 Heavy Excavator Hydraulic Drive Assembly High Torque Travel | Applicable Machine Model： | Komatsu PC300-7 PC340-7 PC350-7 708-8H-00320 |
|---|---|---|---|
| Applicable Industries： | MECHANICAL REPAIR SHOPS, RETAIL, CONSTRUCTION, ENERGY, MINING | Category | Final Drive / Travel Motor & Gearbox Assy |
| Condition： | NEW/REBUILT | Brand | IRON CAVALRY |
| Highlight | Komatsu excavator final drive motor,heavy excavator hydraulic drive assembly,high torque travel final drive |
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Product Description
Komatsu PC300-7 PC340-7 PC350-7 Final Drive Motor 708-8H-00320 Heavy Excavator Hydraulic Drive Assembly High Torque Travel
The Final Drive Unit (Part No. 708-8H-00320) for Komatsu PC300-7, PC340-7, and PC350-7 excavators is a heavy-duty travel propulsion assembly engineered for large-scale earthmoving, mining, and heavy infrastructure projects in the 30-35 ton machine class. This unit integrates a high-displacement axial piston hydraulic motor with a rugged multi-stage planetary reduction gearbox, delivering exceptional tractive effort and reliable travel performance under continuous heavy-load conditions.
Product Specifications
| Part Number | 708-8H-00320 |
| Brand | IRON CAVALRY |
| Place of Origin | CHINA |
| Condition | Original & OEM |
| Warranty | 12 months |
| MOQ | 1 piece |
| Production Capacity | 1000 pieces per month |
| Standard or Nonstandard | Standard |
| Payment Terms | L/C, T/T, Western Union, Trade Assurance |
| Delivery Time | 3-7 days (depending on order) |
| Means of Transport | By Sea, Air or DHL/FEDEX/TNT/EMS |
Regional Application & Market Suitability
The Komatsu PC300-7, PC340-7, and PC350-7 excavators are deployed across demanding global job sites. Our final drive unit is regionally optimized to meet specific operational challenges:
- North America & Europe: Engineered for heavy civil construction, quarry operations, and large-scale road building, with reinforced housing and enhanced sealing to withstand high-frequency use, cold-weather startups, and abrasive winter road treatments.
- South America & Oceania: Equipped with heavy-duty floating seals that resist ingress of abrasive laterite soils, clay, and tropical mud common in mining, plantation, and large-scale earthworks projects.
- Middle East & Africa: High-temperature seals and corrosion-resistant materials protect against sand erosion, thermal cycling, and airborne dust in arid desert and semi-arid environments.
Key Features & Performance Advantages
- High-Displacement Torque Delivery: The axial piston motor design provides substantial starting torque and smooth power transmission, enabling efficient tracking on steep slopes, soft ground, and uneven quarry terrain.
- Multi-Stage Planetary Reduction: The gearbox employs heat-treated alloy steel planetary gears manufactured to tight tolerances, ensuring even load distribution across multiple contact points and extended service life between major overhauls.
- Multi-Model Compatibility: Engineered to fit PC300-7, PC340-7, and PC350-7 models with identical mounting dimensions, pilot bores, spline connections, and hydraulic port locations, providing flexibility for fleet maintenance and inventory management.
- Industrial-Grade Structural Integrity: The cast iron housing features reinforced ribbing and stress-relieved construction to resist structural fatigue under continuous shock loading, while dual-cone floating seals protect internal components from contamination.
Expert Maintenance Guidance
- Hydraulic System Care: Routinely inspect case drain lines for restrictions, kinks, or blockages. A restricted drain line can generate excessive back pressure, leading to motor rotary group failure or seal damage. Always use clean hydraulic fluid and replace return filters according to the machine's prescribed service schedule.
- Gear Oil Management: Fill the planetary housing with the recommended extreme-pressure gear oil of the correct viscosity grade. Change the oil every 250-500 operating hours under normal conditions, and every 250 hours in severe applications such as quarry work, demolition, or continuous heavy digging.
- Mounting Bolt Protocol: When reinstalling the final drive unit, always fit new high-strength bolts. Apply a suitable thread locking compound to the bolt threads prior to torquing to factory specifications, preventing loosening caused by continuous vibration and shock loads.
- Pre-Operation Priming Procedure: Before initial startup or after final drive replacement, fill the motor housing with clean hydraulic oil to purge trapped air pockets. Run the machine at low idle for several minutes, cycling the tracks forward and reverse, to ensure complete lubrication before engaging heavy operational loads.
About IRON CAVALRY
Guangzhou Tieqi Construction Machinery Co., Ltd. (IRON CAVALRY) is strategically located in Guangzhou's Huangpu District. With nearly 15 years of experience, we specialize in engineering machinery hydraulics and are committed to delivering practical solutions and upholding our responsibilities.
Manufacturing Facility Exterior
Factory Production Line
Trade Show Exhibition
Professional Team
Technical Leadership & Standards
Our efficient execution and rigorous manufacturing approach ensure our products meet over 95% of original performance specifications. This commitment has built widespread trust in the industry.
Product & Inventory Capability
We maintain a ready inventory of over 500 assembly types, providing access to more than 6,000 different parts. Hydraulic pump, control valve, travel, and swing assemblies are our core products, with particular expertise in large mining excavator components and hard-to-find items.
Packaging & Delivery
For large items, we use sturdy plywood crates secured with metal fasteners. Products are cushioned with bubble wrap and secured with wooden braces, with special attention given to protecting vulnerable parts. External reinforcement includes high-strength PET plastic strapping and waterproof wrapping.
Secure Product Packaging Example
Why Choose IRON CAVALRY?
- One-stop solution provider for all hydraulic component needs
- High-quality products at competitive prices
- Exceptional customer service and support
- Large inventory, short delivery times, and long warranty periods
- Professional expertise with accurate part number identification
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