PC120-6 Excavator Multi-way Distributing Control Valve | Aftermarket Hydraulic Replacement Spare Parts

Welcome to our hydraulic spare parts supply. We specialize in providing the complete PC120-6 excavator multi-way distributing control valve assembly, precision-manufactured as a heavy-duty aftermarket replacement part compatible with PC series medium engineering machinery equipment. All internal spools, valve bodies and sealing assemblies are CNC precision machined and passed factory pressure & flow testing, stable flow distribution for medium-load earthwork and municipal construction operation, plug-and-play direct fit without modification, cost-effective overhaul component for global medium excavator repair workshops.

• Urban municipal road reconstruction, large pipeline trenching and commercial building foundation excavation
• Medium earthwork site development, mountain land leveling and foundation pit excavation engineering
• Highway roadbed construction, bridge pier earthwork and mountain slope stabilization trimming project
• Open-pit mining site stripping, bulk ore loading and mine auxiliary transportation operation
• River dredging, reservoir reinforcement and flood control water conservancy project
• Port yard expansion, logistics park construction and medium bulk cargo loading operation

• Spool sticking, heavy operation handle, poor return and unresponsive digging action caused by hydraulic impurity wear
• Internal valve leakage, slow boom / arm / bucket movement and cylinder drift when machine stays static
• External oil leakage at valve body joints, continuous hydraulic oil consumption and surface oil stain
• Unstable flow output, machine shaking and uneven movement during long-time continuous medium load operation
• Unbalanced pressure of each oil circuit, insufficient digging force and slow traveling speed under load
• Overflow valve failure, unable to build system pressure or excessive pressure triggering high temperature alarm

• Insufficient system pressure, slow whole machine movement caused by worn valve plate, piston and cylinder block internal leakage
• Pump abnormal overheating and metal knocking vibration, cavitation from clogged oil suction strainer
• Pump front shaft oil seal leakage, hydraulic oil leaking to engine compartment and continuous oil consumption
• Unstable hydraulic flow, boom and bucket jitter, weak digging force under heavy load
• Hydraulic pump cavitation noise, air mixed in oil circuit leading to pressure fluctuation and power drop
• Hydraulic system high temperature alarm, continuous operation leads to obvious power limitation

• Swing weak & sliding slope: Serious wear of motor valve plate or aging internal seal leads to high-pressure oil internal leakage, unable to stop on slope
• Swing abnormal noise & sticking: Broken gear or damaged bearing inside reducer, with metal friction jamming sound
• Swing oil leakage: Oil seal abrasion leads to swing motor hydraulic oil spillage
• Swing stuck, excavator unable to rotate smoothly under full load
• Long-time continuous swing operation causes whole hydraulic system overheating

• Travel deviation: Inconsistent displacement of two side motors, servo valve failure or oil seal leakage of central swing joint
• One side unable to travel: Broken travel reducer gear or the motor brake cannot open normally
• Weak travel or abnormal speed: Motor displacement adjustment mechanism stuck in large displacement state, slow speed with huge torque
• Travel gear wear noise and oil leakage failure
• Climbing stall caused by internal transmission parts wear

• Engine power drop & black smoke: Clogged air filter or poor atomization of fuel injection parts
• Water temperature & oil temperature over high: Radiator blocked by sediment, deteriorated engine oil, stuck thermostat
• Difficult start: Starter failure, battery power loss or air entering fuel pipeline
• Engine surge when multi-way valve opens multi hydraulic circuits
• Engine power reduction caused by valve blockage and hydraulic pressure loss

• Precision CNC machined thickened valve body and wear-resistant hard chrome spool, tiny matching clearance, effectively reduce internal leakage under long medium construction load
• Complete original matching installation size as direct replacement compatible with PC series medium excavator, direct disassembly replacement without cutting or modification
• 100% factory flow & pressure testing before delivery, effectively reduce on-site breakdown rate after installation
• High temperature & pressure resistant sealing components, adapt long-time continuous medium-load construction operation
• Support 1 piece trial order and mass bulk wholesale for global medium excavator repair shops & distributors
• Standard export shockproof wooden case packaging to avoid valve body collision damage during long-distance sea transportation
• 6 months full factory quality warranty for all PC120-6 distributing valves

• Model Number: PC120-6
• Product Type: Multi-way Main Control Distributing Valve
• Applicable Equipment: PC Series Medium Excavator Construction Machinery
• Condition: Brand New Aftermarket Replacement Hydraulic Spare Parts
• Core Function: Control Boom, Arm, Bucket, Travel and Swing Hydraulic Circuit
• Warranty Period: 6 Months Factory Quality Warranty

Which medium excavator models match this PC120-6 multi-way distributing valve?

This PC120-6 main control distributing valve is designed as aftermarket replacement spare part compatible with PC series medium excavator equipped with PC120-6 hydraulic system, used for full hydraulic circuit control overhaul replacement.

What hydraulic faults can PC120-6 distributing valve repair?

It fixes multi-way valve spool sticking, internal & external oil leakage, slow digging movement, machine shaking, unbalanced pressure, pump overheating, swing weak, travel deviation and engine hydraulic load surge failure.

Is this PC120-6 distributing valve aftermarket replacement spare part?

Yes, it is brand new aftermarket multi-way control valve, fully matched original installation size compatible with PC series medium excavator for direct maintenance replacement.

Can I purchase only 1 piece PC120-6 distributing valve for repair test?

Yes, MOQ is 1 piece, sufficient factory stock for global medium excavator repair workshops and spare parts dealers.

How long is the warranty period of PC120-6 multi-way distributing valve?

All PC120-6 distributing valves enjoy 6 months official factory quality warranty from delivery date.

What other PC series excavator hydraulic control valves do you supply?

We supply full series multi-way distributing valves for mini, medium and large PC series excavators, matched repair seal kits and spool wearing parts.

Global medium excavator maintenance workshops and spare parts wholesalers are welcome to send inquiry for long-term stable factory supply. Send your equipment model number for free technical matching verification.