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Compact Hydraulics

Compact Hydraulics & Micro Power Units for Mobile and OEM Equipment

Compact hydraulic systems for space-saving fluid power delivery in mobile utility vehicles, material handling equipment, and automated machinery. Built with miniature gear pumps, integrated aluminum manifold blocks, DC or AC electric motors, and lightweight reservoirs to deliver stable pressure control within minimal physical envelopes.

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Technical Selection Parameters

Parameter Metric	DC Micro Power Unit (12V/24V)	AC Compact Power Pack	Mini Dual-Circuit Hydraulic Pack
Input Voltage	12VDC / 24VDC	220V (1PH) or 380V (3PH)	12VDC / 24VDC
Motor Power	0.5 kW to 3.0 kW	0.75 kW to 2.2 kW	0.8 kW to 2.0 kW
Max Working Pressure	Up to 18 MPa (180 Bar)	Up to 21 MPa (210 Bar)	Up to 16 MPa (160 Bar)
Flow Rate Range	1.5 L/min to 6.0 L/min	3.0 L/min to 12.0 L/min	2.0 L/min to 5.0 L/min
Reservoir Volume	2L to 10L	5L to 20L	3L to 8L
Duty Cycle	Intermittent (S3 - 10% to 20%)	Continuous or Intermittent	Intermittent (S3 - 15%)
Fluid Compatibility	ISO VG 32 / ISO VG 46 Mineral Oil	ISO VG 46 Mineral Oil	ISO VG 32 Hydraulic Oil

Industrial Applications

Commercial Vehicle Tail Lifts

Powers lifting and tilting cylinders on delivery trucks under rapid duty cycles.

Hydraulic Dock Levelers

Drives lip extension and deck elevation cylinders in logistics loading bays.

Scissor Lifts and Access Platforms

Operates compact vertical elevation systems requiring strict footprint minimization.

Medical Equipment

Controls smooth, quiet positioning functions in motorized patient stretchers and dental chairs.

Quality Control Before Shipment

Proof Pressure Testing: Assembled manifolds and tanks are pressurized to 1.5 times working pressure for 15 minutes to verify structural sealing and zero external leaks.

Functional Load Testing: Each unit runs on a dynamic test bench to verify motor current draw, volumetric pump efficiency, and cracking pressure of built-in relief valves.

Thermal Rise Verification: Intermittent duty-cycle testing to monitor motor winding temperature stability under load.

Cleanliness Inspection: Internal oil channels are flushed to meet ISO 4406 cleanliness limits prior to port plugging.

Surface Protection: Steel reservoirs receive corrosion-resistant powder coating, and aluminum blocks are anodized against environmental oxidation.

Custom Engineering and Integration

For OEM applications requiring custom layouts, engineering is available based on spatial constraints:

Footprint Optimization

Custom bracket designs and manifold port orientations engineered to match strict machinery enclosure dimensions.

Electrical Harness Integration

Pre-wired solenoid valve coils, thermal switches, and relay wiring harnesses supplied ready for direct machine plugging.

Specialized Valving

Integration of proportional lowering valves, dual pilot-operated check valves, and manual override options.

FAQ

Q: What is the typical duty cycle for DC powered compact hydraulic units?

A: DC powered compact units are designed for intermittent operation (S3 duty cycle, typically 10% to 20% utilization per hour). Continuous running can cause thermal overload in DC motor windings. For continuous applications, AC powered systems must be specified.

Q: How are compact hydraulic systems protected against overpressure?

A: Every unit includes an adjustable built-in relief valve factory-set to the customer's maximum operating pressure specification to protect the pump and motor from overload damage.

Q: What fluid viscosity is recommended for compact power packs?

A: Standard anti-wear hydraulic oils with ISO VG 32 or ISO VG 46 viscosity grades are recommended for normal ambient operating ranges (-15°C to +60°C).

Q: Can compact hydraulic units operate in vertical mounting orientations?

A: Yes, provided the pump inlet remains submerged in oil. Tank breathers and pickup tube orientations must be specified during order placement if vertical or wall mounting is required.

Q: What packaging methods are used to prevent transit damage?

A: Units are securely bolted to custom wooden pallets or packed in reinforced cartons with high-density foam inserts, with all ports sealed using threaded plastic plugs.

Q: What documents are included with each delivery?

A: Each shipment includes hydraulic circuit schematics, electrical wiring diagrams, component parts lists, and factory test inspection sheets.

We are one of the most experienced compact hydraulics manufacturers and suppliers in China, specialized in providing high quality customized products. Please feel free to wholesale bulk durable compact hydraulics in stock here from our factory. Contact us for quotation.

Small Hydraulic System, 24v Hydraulic Power Unit, Mobile Hydraulic Power Unit