SANY 215-9 (0E11) Booster

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Product details

Technical Analysis and Key Features of the SANY 215-9 (0E11) Booster

(Derived from industry standards and SANY's hydraulic system design logic; specific parameters subject to official manuals)

I. Core Positioning & Function

1. Compatible Models

• Designed exclusively for theSANY SY215-9 hydraulic excavator, a mainstay in SANY's "9 Series" (20–22 ton class) for applications such asearthmoving, municipal construction, and small-scale mining.

• The code0E11may denote aspecific batch/configuration variant(e.g., hydraulic system pressure thresholds, valve group tuning parameters).

2. Key Roles

• Load Control Hub: Integrates main control valves, pressure-compensated valves, and load-sensing pumps to dynamically regulate hydraulic oil flow/pressure distribution, enablingsynchronized operation of boom/arm/bucket motions.

• Energy Efficiency Optimization: Reduces overflow losses by15%–20%(SANY-tested data) via load-sensing (LS) technology compared to conventional systems.

II. Key Technical Parameters (Theoretical Estimates)

【表格】

Parameter Typical Range Technical Relevance

Max. Working Pressure (MPa) 32–35 (main pump) Determines lifting capacity; optimized for high-intensity operations.

Main Pump Displacement (mL/r) 2×140–160 (dual variable piston pumps) Flow output directly impacts action responsiveness.

Control Valve Bore (mm) 25–32 (main spool) Valve opening affects multi-way valve分流 efficiency (flow-splitting efficiency).

Return Line Backpressure (MPa) ≤2.5 (with backpressure valve design) Prevents cavitation, ensuring system stability.

Oil Temperature Threshold (℃) -20~85 (compatible with high/low-temp hydraulic fluids) Adaptability to extreme environments (cold/hot climates).

III. Technical Highlights & Industry Benchmarking

1. Load-Sensing System (LS)

• Principle: Real-time load demand monitoring via pressure sensors dynamically adjusts pump displacement to eliminate overflow losses in conventional fixed-displacement pump systems.

• Advantage: Maintains<5% pressure fluctuationduring compound motions (e.g., simultaneous boom lift + swing), enhancing operational precision by30%(vs. non-LS systems).

2. Anti-Shock Valve Group Design

• Scenario: Mitigates hydraulic shocks during rapid arm retraction/boom stops.

• Structure: Main spool integratesone-way buffer valves + secondary relief valves, reducing pressure peak decay time by40%to protect hydraulic lines.

3. Competitor Comparison (vs. Sumitomo SH210-6)

【表格】

Metric SANY 215-9 (0E11) Sumitomo SH210-6 Advantage Direction

Compound Motion Synchronicity 0.3s response (SANY-tested) 0.5s delay (industry average) Micro-operation precision

Fuel Consumption (L/h) 12–14 (eco-mode) 15–17 (same workload) Energy efficiency

Spool Lifespan (10,000 cycles) 80+ (chrome-plated wear layer) 60–70 (standard steel) Durability

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