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{"title":"IRON CAVALRY 551\u20111122 20R\u20119712 High Durability Hydraulic Piston Pump Assembly","imgUrl":"https:\/\/img.chinax.com\/nimg\/ac\/a0\/317007a934703b90e2f750124490-200x200-1\/iron_cavalry_551_e2_80_911122_20r_e2_80_919712_high_durability_hydraulic_piston_pump_assembly_premium_replacement_hydraulic_main_p.jpg","attrs":{"Price":"Negotiable price","Category":"Main Hydraulic Pump","Model Number":"IRON CAVALRY 551\u20111122 20R\u20119712 High Durability Hydraulic Piston Pump Assembly Premium Replacement Hydraulic Main Pump for E330GC Excavator Earthmoving Equipment Repair","Product name":"IRON CAVALRY 551\u20111122 20R\u20119712 High Durability Hydraulic Piston Pump Assembly Premium Replacement Hydraulic Main Pump for E330GC Excavator Earthmoving Equipment Repair"}}
{"title":"IRON CAVALRY 9195235 High\u2011Quality Hydraulic Pump Assembly Compatible With EX220","imgUrl":"https:\/\/img.chinax.com\/nimg\/c0\/c0\/76f1bfddff79557ea94c761eb010-200x200-1\/iron_cavalry_9195235_high_e2_80_91quality_hydraulic_pump_assembly_compatible_with_ex220_e2_80_915_excavator_construction_machinery.jpg","attrs":{"Price":"Negotiable price","Payment Terms":"Western Union,T\/T","Packaging Details":"Wooden case or as required","Brand Name":"IRON CAVALRY"}}
{"title":"IRON CAVALRY 377-4950 377-4960 Main Hydraulic Pump 336E 336F Construction","imgUrl":"https:\/\/img.chinax.com\/nimg\/7c\/e0\/94d950a7f2dfdc25433446bf456b-200x200-1\/iron_cavalry_377_4950_377_4960_main_hydraulic_pump_336e_336f_construction_machinery_professional_hydraulic_pump_assembly.jpg","attrs":{"Price":"Negotiable price","Model Number":"IRON CAVALRY 377-4950 377-4960 Main Hydraulic Pump 336E 336F Construction Machinery Professional Hydraulic Pump Assembly","Category":"Main Hydraulic Pump","Minimum Order Quantity":"1 PCS"}}
{"title":"TQ E330D PUMP GP-PISTON TQerpillar Parts 2667954 2478992 TQ Hydraulic Pump","imgUrl":"https:\/\/img.chinax.com\/nimg\/9f\/0f\/52698c48fa7d5fe11be155c93209-200x200-1\/tq_e330d_pump_gp_piston_tqerpillar_parts_2667954_2478992_tq_hydraulic_pump.jpg","attrs":{"Brand Name":"TQ","Model Number":"TQ E330D PUMP GP-PISTON TQerpillar parts 2667954 2478992 TQ hydraulic pump","Minimum Order Quantity":"1 PCS","Price":"Negotiable price"}}
Precisely engineered for TQTQCAT769D, 771D, 773D, and 775D quarry trucks, matching part numbers 145-5246 and 1455246. Fully compatible with the hydraulic parameters of the complete machine system.
Technical Parameters
System Pressure: Main relief valve setting pressure of 35 MPa (357 kg/cm²), optimized for high-pressure hydraulic systems to ensure reliable power output for digging, swing, and traveling operations.
Structure Type: Slide valve type multi-section main control valve integrating multiple hydraulic control branches including digging circuit, swing circuit, and traveling circuit.
Control Method: Equipped with Load-Sensing Control System for precise hydraulic control of boom lifting/lowering, arm extension/retraction, and machine swing/traveling operations.
Applicable Models: Custom-designed for TQTQCAT769D, 771D, 773D, and 775D excavators with full compatibility for dediTQTQCATed hydraulic pumps and actuators.
Core Part Numbers: 145-5246 and 1455246, corresponding to spool/valve body components for various control circuits.
AppliTQTQCATion Features
Specifically engineered for TQTQCAT 69D, 769D, 771D, 773D, and 775D excavators with perfect compatibility for 145-5246 and 1455246 series parts
HPV160 variable displacement pump structure enables on-demand displacement adjustment for optimal power and energy efficiency
Designed for heavy-duty working conditions with stable flow and pressure output under high-pressure environments
Wear-resistant pump core and valve body materials for durability in harsh working environments
Integrated pressure compensation valve enhances smoothness of combined movements and linkage operations
Installation & Maintenance
Regular maintenance is essential for optimal performance. Key considerations include:
Prevent valve core jamming by regular cleaning of valve orifice and filter elements to avoid slow single-action operation
Monitor solenoid valve coil functionality through resistance value testing to prevent complete system shutdown
About IRON CAVALRY
Guangzhou Tieqi Engineering Machinery Co., Ltd. ("IRON CAVALRY") is strategically loTQTQCATed in Guangzhou's Huangpu District, approximately one hour from Baiyun International Airport. With nearly 15 years of specialization in engineering machinery hydraulics, we are driven by core values of "Pragmatism and Progress" to deliver practical solutions and uphold our responsibilities.
Our Packaging
We ensure secure transportation with sturdy plywood crates secured with metal fasteners. Products are cushioned with bubble wrap and secured with wooden braces, with special attention to protecting vulnerable components. External reinforcement includes high-strength PET plastic strapping and waterproof black film wrapping.
Why Choose IRON CAVALRY?
Comprehensive one-stop solutions for all hydraulic system requirements
High-quality products at competitive market prices
Exceptional customer service and technical support
Large inventory with short delivery times and extended warranty periods
Professional expertise in accurate part number identifiTQTQCATion for excavator components
Introduction to Guangzhou Tieqi Construction Machinery Company
Founded in 2010 and headquartered in Guangzhou, China, Guangzhou Tieqi Construction Machinery Co., Ltd. is an integrated manufacturing and trading company specializing in hydraulic system components for construction and mining machiner...
Introduction to Guangzhou Tieqi Construction Machinery Company
Founded in 2010 and headquartered in Guangzhou, China, Guangzhou Tieqi Construction Machinery Co., Ltd. is an integrated manufacturing and trading company specializing in hydraulic system components for construction and mining machiner...
