SY335C SY335H SY330H Hydraulic Main Control Valve OEM Original Parts KMX15RB-B45210B-V Fit 30T Excavator

1. Basic Info

Part Number: KMX15RB-B45210B-V

Product Name: Hydraulic Main Control Valve Assy / Hydraulic Distributor

Brand: SANY

Applicable Machine: SANY SY335C, SY335H, SY330H Excavator

Condition: OEM Original Kawasaki KMX15RB Series Valve Assembly

Application: 30 Ton Excavator Central Hydraulic Distribution System

2. Core Advantages

• Kawasaki KMX15RB-B45210B-V original multi-way valve, precisely calibrated to match the high-flow hydraulic system of SANY 30-ton excavators
• Optimized internal flow channel design, supporting high flow output for heavy-duty digging and loading operations, maintaining smooth compound action with low pressure loss
• Precision ground hardened alloy valve spool and high-strength cast iron valve body, outstanding resistance to hydraulic oil contamination for quarry and earthmoving heavy-load working conditions
• Integrated boom & arm regeneration circuit, swing priority and straight travel logic, stable performance when operating boom, arm, swing and travel simultaneously
• Original mounting footprint and oil port layout, direct bolt-on replacement, no modification required to reduce machine downtime during overhaul
• Strict hydraulic bench pressure test before shipment, ensuring stable pressure response and consistent operation feedback under continuous heavy workload

3. Technical Data

Valve Model: Kawasaki KMX15RB-B45210B-V Multi-way Main Control Valve

Matched Excavator Weight: 30 ton

Working Medium: Anti-wear hydraulic oil ISO VG46

Main System Rated Pressure: 33 MPa

Overload Relief Pressure: 37 MPa

Control Type: Pilot hydraulic control

Integrated Functions: Boom regeneration, arm regeneration, swing priority, straight travel, overload protection, auxiliary hydraulic port

Pilot Control Pressure Range: 2.5–3.4 MPa

Valve Body Material: High-strength cast iron

Spool Material: Alloy steel with surface hardening treatment

Internal Components: Main relief valve, overload valves, shuttle valves, check valves, complete spool assembly

Design Durability: OEM standard 10,000 working hours

Mounting Form: Bottom flange fixed installation

4. FAQ