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Complete single-jack hydraulic kit with 12V DC power unit for powerful lifting and lowering
Model: PJS-12-20-K
This PJS-12-20-K is a complete single-jack hydraulic trailer jack kit designed for heavy-duty trailers. It includes one 12,000 lb rated double-acting hydraulic trailer jack, a 12V DC hydraulic power unit (HPU), and all necessary plumbing components. The double-acting action provides powered raising and lowering, making trailer hitching and leveling effortless. The kit is ideal for dump trailers, gooseneck trailers, and other heavy-duty applications requiring reliable hydraulic landing gear.
With a rated capacity of 12,000 lb, 20-inch nominal travel, and maximum working pressure of 3,200 PSI, this kit delivers the performance needed for demanding trailer operations. The 3/8-inch BSPP hydraulic ports ensure a standardized connection, and the maximum 2 GPM flow rate matches market-leading hydraulic systems.
| Parameter | Value |
|---|---|
| Rated Jack Capacity | 12,000 lb per trailer jack |
| Hydraulic Action | Double Acting |
| Nominal Travel | 20 in |
| Maximum Working Pressure | 3,200 PSI |
| Extend / Raising-Port Relief Setting | 3,200 PSI |
| Retract / Lowering-Port Relief Setting | 1,500 PSI |
| Maximum Hydraulic Flow Rate | 2 GPM |
| Hydraulic Port Type | 3/8 in BSPP |
| Power Supply | 12 VDC (with HPU) |
| Max Distance Between Ground and Trailer Frame Bottom | 8 in |
| Mounting Plate Dimensions (Approx.) | 5.53 in × 5.53 in |
| Recommended Fitting Torque | 12–14 ft-lb |
This variant is the PJS-12-20-K single-jack complete kit with hydraulic power unit. For tandem applications requiring two jacks, consider the PJD-12-20-K kit which includes a flow divider. Add-on kits are also available.
The Apex production material is based on the confirmed bill of materials and approved drawings. The recommended structure includes high-strength structural-steel jack housing, precision-machined steel hydraulic components, steel mounting plate, hydraulic sealing system, and corrosion-resistant industrial coating.
Apex can manufacture functionally compatible hydraulic trailer jack systems according to confirmed dimensions, interface requirements, and approved drawings. OEM and ODM services are available, including design, engineering, prototyping, and production.
Each jack is rated for 12,000 lb, so this single-jack kit supports up to 12,000 lb trailer tongue weight.
Yes, the PJS-12-20-K includes a 12V DC double-acting hydraulic power unit.
The maximum working pressure is 3,200 PSI for both raising and lowering ports.
Yes, the add-on kits (with selector valve) are designed to share an existing compatible trailer hydraulic power unit with the dump-hoist circuit.
The port is 3/8-inch BSPP.
12–14 ft-lb is recommended.
Yes, 12 VDC is standard for kits with a hydraulic power unit.
For pricing, lead time, and technical support, contact our sales team:
Jason | Email: jason@hydraulicapex.com | Tel/WhatsApp: +86 182-5318-1828
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