Hydraulic Opening System
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This page explains how Hydraulic Power Unit (HPU) is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A self-contained system that generates and regulates hydraulic pressure to power actuators within a hydraulic opening system.
Technical details and manufacturing context for Hydraulic Power Unit (HPU)
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Rated Flow | 10–200 L/min | 10–200 — Flow rate at rated motor speed and pump displacement.ISO 4413 |
| Maximum Operating Pressure | 70–350 bar | 70–350 — Pressure at the pressure port; higher pressures require higher-grade components.ISO 4413 |
| Motor Power | 1.5–75 kW | 1.5–75 — Electric motor rating; depends on required flow and pressure.IEC 60034 |
| Reservoir Capacity | 50–1000 L | 50–1000 — Usable oil volume; typically 2–3 times pump flow per minute. |
| Filtration Rating | 10–25 µm | 10–25 — Absolute filter rating; ISO cleanliness target 18/16/13 or better.ISO 4406 |
| Cooling Capacity | 5–50 kW | 5–50 — Heat dissipation required to maintain oil temperature within range. |
| Noise Level | 70–85 dB(A) | 70–85 — At 1 m distance; lower noise for indoor use.ISO 3744 |
| Operating Temperature Range | -10–+60 °C | -10 to +60 — Ambient temperature; oil temperature must be maintained between 30–60 °C.ISO 4413 |
| Electrical Supply | 230/400–690 V | 230/400–690 — Three-phase; frequency 50/60 Hz.IEC 60038 |
| Port Connections | G1/4–G2 BSPP | G1/4 to G2 — Pressure and return ports; SAE flanges optional.ISO 228-1 |
| Duty Cycle | Continuous (S1) or intermittent (S3) | Continuous (S1) or intermittent (S3) — Specify duty class; S1 for continuous operation, S3 for cyclic.IEC 60034-1 |
| Seal Material | NBR or FKM | NBR or FKM — NBR for mineral oil, FKM for high temperature or aggressive fluids.ISO 6072 |
| Pump Type | Gear, vane, or piston | Gear, vane, or piston — Gear for low cost, piston for high pressure and efficiency. |
| Valve Configuration | Directional, pressure, flow control | Directional, pressure, flow control — Size and type per system requirements.ISO 4401 |
| Material of Reservoir | Carbon steel (S235JR) or stainless steel (304L) | Carbon steel (S235JR) or stainless steel (304L) — Stainless for corrosive environments.EN 10025 |
| Paint/Coating | Epoxy or polyurethane, 80–120 µm DFT µm | Epoxy or polyurethane, 80–120 µm DFT — Corrosion protection for outdoor or washdown areas.ISO 12944 |
| Ambient temperature | -10–+60 °C | -10 to +60 °C — Outside this window: Below -10 °C: oil viscosity too high, cavitation risk; above 60 °C: oil degradation, seal failure. |
| Oil temperature | 30–60 °C | 30–60 °C — Outside this window: Below 30 °C: high viscosity, poor pump performance; above 60 °C: accelerated oxidation, reduced seal life. |
| System pressure | 70–350 bar | 70–350 bar — Outside this window: Above max: relief valve opens, but continuous operation at relief pressure causes overheating and pump wear. |
| Fluid level | Above minimum mark (typically 75% full) | Above minimum mark (typically 75% full) — Outside this window: Low level: air entrainment, cavitation, pump damage. |
| Fluid cleanliness | ISO 4406 18/16/13 or better | ISO 4406 18/16/13 or better — Outside this window: Dirtier: valve sticking, pump wear, premature failure. |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
Commonly used trade names and technical identifiers for Hydraulic Power Unit (HPU).
This component is essential for the following industrial systems and equipment:
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
6 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
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The rated flow for an HPU is typically in the range of 10–200 L/min at rated motor speed and pump displacement. This is a reference range; the actual flow depends on the specific model and application. Always verify with the manufacturer.
Relevant standards include ISO 4413 for hydraulic fluid power, ISO 4406 for fluid cleanliness, IEC 60034 for electric motors, ISO 3744 for noise measurement, and ISO 228-1 for port connections. These standards serve as procurement references; compliance must be confirmed with the supplier.
Selection depends on required flow, pressure, motor power, reservoir capacity, and environmental conditions. Consider the actuator size, cycle time, and duty cycle (continuous or intermittent). Consult the manufacturer to match the HPU parameters to your system requirements.
Watch for abnormal noise, increased oil temperature, pressure drops, or fluid contamination. Check fluid level and cleanliness regularly. If the system operates outside the recommended oil temperature (30–60 °C) or pressure range, investigate and correct the issue to prevent damage.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
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