Core Application & Equipment Compatibility
These components are exclusively compatible with the YZ3000 "S/J" Hydraulic Power Unit, widely used in construction machinery, heavy-duty equipment, and industrial hydraulic systems. Targeting maintenance engineers and procurement teams, they resolve pressure instability, flow control failure, and component wear—critical for minimizing downtime. All comply with ISO 6403 and SAE J1940, ensuring reliability in high-pressure (up to 315bar) operations.
1. Hydraulic Power Unit (Main Equipment)
The YZ3000 "S/J" Hydraulic Power Unit is the core of hydraulic systems, delivering stable power for heavy loads. A construction site fixed unit shutdown by cleaning the internal filter and calibrating valves, complying with ISO 12103. It integrates high-efficiency components, ensuring long-term operation in harsh working conditions.
No. | Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | YZ3000 "S/J" HYD.POWER UNIT | Steel tank, aluminum alloy pump mount, stainless steel hydraulic lines, Viton seals | Oil contamination clogging internal components; overheating from continuous operation | Use ISO VG 46 hydraulic oil (DIN 51524); clean tank every 500h; ensure proper ventilation |
2. Hydraulic Valves (Overflow/Balance/Proportional Valves)
These valves regulate pressure and flow for the YZ3000 unit, preventing system overpressure and ensuring stable operation. A factory resolved pressure drift by replacing the overflow valve seal and calibrating the proportional valve, adhering to ISO 6403 precision standards. They resist wear and corrosion in heavy-duty scenarios.
No. | Model | Type | Material | Main Wear Causes | Damage Prevention Notes |
1 | YZ000012 | Overflow Valve | Steel housing, stainless steel valve core, high-tensile spring, Viton seals | Spring fatigue from pressure cycling; seal leakage from oil oxidation | Calibrate pressure monthly; add oil antioxidant; replace spring every 6 months |
2 | YZ000025 | Balance Valve | Steel housing, stainless steel spool, NBR seals, brass fittings | Spool jamming from abrasive particles; vibration loosening mounts | Install 3μm inline filter; torque mounting bolts to 12N·m; clean spool monthly |
3 | YZ000016 | Loading Sensitive Electric Control Proportion Three Bank Valve | Aluminum housing, stainless steel spools, copper coil, Viton seals | Coil burnout from voltage surges; calibration drift from temperature changes | Install surge arrester; calibrate with temp fluctuations; test insulation weekly (≥10MΩ) |
4 | YZ000010 | Loading Sensitive Electric Control Proportion Three Bank Valve | Aluminum housing, stainless steel spools, copper coil, Viton seals | Moisture corroding electrical parts; sludge buildup in spool chambers | Use moisture-proof enclosure; flush valve every 3 months; change oil every 200h |
3. Hydraulic Pumps (Loading Sensitive Variable Pump)
This variable pump adjusts flow based on load demand for the YZ3000 unit, optimizing energy efficiency. A mining site fixed pump failure by replacing contaminated oil and cleaning the wear plate, extending service life by 30%. It meets API 7K standards, enduring high pressure and heavy loads.
No. | Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | YZ000008 (Loading Sensitive Variable Pump) | Cast iron housing, ceramic plungers, bronze bushings, Viton seals | Plunger wear from abrasive particles; low oil viscosity increasing friction | Maintain oil viscosity at 40-100 cSt; replace filter element every 150h; inspect plungers monthly |
4. Hydraulic Accessories (Ball Valve/Hydraulic Cathead)
These accessories ensure safe fluid control and auxiliary operation for the YZ3000 unit. A warehouse resolved ball valve leakage by replacing the seal and polishing the valve ball, complying with SAE J1940. They are engineered for durability in industrial hydraulic systems.
No. | Model | Type | Material | Main Wear Causes | Damage Prevention Notes |
1 | YZ000040 | High Pressure Ball Valve | Stainless steel body, PTFE valve seat, brass handle, Viton seals | Valve seat wear from frequent operation; corrosion from moisture (offshore use) | Operate valve gently; apply anti-corrosion spray; replace seat every 4 months |
2 | YZ000028 | Hydraulic Cathead | Steel frame, stainless steel hydraulic cylinder, NBR seals, cast iron gears | Gear wear from metal debris; cylinder rod corrosion from harsh environments | Lubricate gears daily; install rod protector; clean rod with diesel weekly |
FAQs
Question | Answer |
How to maintain the YZ3000 hydraulic power unit for long-term reliability? | Change hydraulic oil every 500h (DIN 51524 HLP grade), clean filters every 150h, and calibrate valves monthly. Inspect seals for leakage weekly and ensure the unit is well-ventilated to avoid overheating. Follow ISO 6403 maintenance guidelines. |
What causes pressure drift in the YZ3000 unit’s proportional valve? | Pressure drift often stems from oil contamination, temperature fluctuations, or spring fatigue. Resolve by flushing the valve, calibrating with a pressure gauge, replacing worn springs, and maintaining oil temperature between 20-50℃. |
Procurement Guidance
Genuine YZ3000 hydraulic components guarantee seamless compatibility with your power unit, ensuring stable performance and minimizing maintenance costs. Whether you need emergency replacements for valves or pumps, or bulk procurement for maintenance stocks, we provide authentic parts matching original specifications. Contact our team with your operational needs for tailored recommendations and professional technical support to keep your hydraulic system running smoothly.
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