Guangzhou Tieqi Construction Machinery Co., Ltd.
                                                                                                           
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Since 2015
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Komatsu D51PX-22 D51EX-22 HST Main Pump Assembly 720-2L-00021 720-2L-00030 Hydraulic Travel Pump

Price Negotiable
Price: Negotiable price
MOQ: 1 PCS
Delivery Time: 5-8 Weekdays
Brand: IRON CAVALRY
Product Description
Komatsu D51PX-22 D51EX-22 HST Main Pump Assembly
Part Numbers: 720-2L-00021, 720-2L-00030 Hydraulic Travel Pump
Product SpecifiTQTQCATions
Part Number D51PX-22 D51EX-22 720-2L-00021 720-2L-00030
Brand IRON CAVALRY
Place of Origin China
Condition Original & OEM Quality
Warranty 12 Months
MOQ 1 Piece
Production Capacity 1000 Pieces per Month
Standard Standard SpecifiTQTQCATions
Payment Terms L/C, T/T, Western Union, Trade Assurance
Delivery Time 3-7 Days (Depending on Order)
Shipping Methods By Sea, Air, or DHL/FEDEX/TNT/EMS
Komatsu D51 HST Main Pump Assembly detailed view Hydraulic pump components and internal mechanism
Key Features
  • Closed-Loop HST Architecture: Designed specifically for Hydrostatic Transmission systems, featuring a closed-loop circuit that allows for instantaneous direction changes and dynamic braking without mechanical wear.
  • Dual-Path Independent Control: The assembly integrates two independent pump units within a single housing, allowing separate flow control for the left and right tracks. This enables smooth power turns and counter-rotation capabilities.
  • High-Efficiency Rotating Group: Manufactured with premium-grade alloy steel pistons and precision-lapped valve plate to minimize volumetric loss, ensuring high torque retention even during prolonged dozing operations.
  • Integrated Charge Pump: Includes a built-in charge pump that constantly replenishes the loop with cool, filtered oil, maintaining positive pressure to prevent cavitation and reduce system operating temperatures.
About IRON CAVALRY
Guangzhou Tieqi Construction Machinery Co., Ltd. has specialized in engineering machinery hydraulics for nearly 15 years, providing expert solutions for construction equipment.
IRON CAVALRY manufacturing facility overview showing production area IRON CAVALRY factory production line with hydraulic components
Company Capabilities
  • High-Precision Servo Control: Supports precise position, speed, and torque control for CNC, robotics, and industrial automation appliTQTQCATions.
  • High Efficiency and Response: Optimized motor design ensures rapid response, fast start/brake speed, and smooth operation while reducing energy consumption.
  • High Torque Output: Compact design with high output torque capable of driving high-inertia loads and achieving stable operation.
  • Reliable and Durable: High-quality materials resistant to high temperatures and vibration, with internal protection design for extended service life.
  • Easy Integration: Standard flange sizes and interfaces allow for quick connection to servo drives and automation systems.
Packaging & Delivery
Product packaging example showing secure wooden crate with protective materials
Our packaging includes sturdy plywood crates with metal fasteners, internal bubble wrap cushioning, wooden braces, high-strength PET plastic strapping, and waterproof black film to ensure safe delivery.
Why Choose IRON CAVALRY?
  • One-stop solution provider for hydraulic components
  • High-quality products at competitive prices
  • Exceptional customer service
  • Large inventory with short delivery times
  • Long warranty periods
  • Professional expertise in excavator components
IRON CAVALRY exhibition booth at international trade show IRON CAVALRY professional team members in manufacturing environment

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Guangzhou Tieqi Construction Machinery Co., Ltd.
Location Guangzhou Tieqi Construction Machinery, No. 238, Zhongshan Avenue East, Huangpu District, Guangzhou, Guangdong
Contact Person wangfeng

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