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Add-on kit with selector valve to integrate the hydraulic jack with an existing trailer hydraulic power unit
Model: PJS-12-20-ADS-K
The PJS-12-20-ADS-K is a single-jack add-on kit designed for trailers that already have a compatible hydraulic power unit (HPU). It includes one 12,000 lb rated double-acting hydraulic trailer jack, a selector valve, hydraulic hoses, and fittings. This kit allows you to easily add hydraulic landing gear to your trailer without purchasing a new power unit, leveraging the existing dump-hoist circuit.
This add-on configuration shares the existing HPU with the dump-hoist circuit, saving cost and space. It is ideal for retrofitting manual landing legs or replacing worn-out hydraulic jacks.
| Parameter | Value |
|---|---|
| Rated Jack Capacity | 12,000 lb |
| 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 |
| 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 is the PJS-12-20-ADS-K single add-on kit. For dual-jack add-on applications, choose the PJD-12-20-ADS-K. Complete kits with HPU are also available (PJS/PJD-12-20-K).
Built with high-strength structural-steel jack housing, precision-machined steel hydraulic components, steel mounting plate, hydraulic sealing system, and corrosion-resistant industrial coating, per approved Apex specifications.
Apex can manufacture custom hydraulic trailer jack systems to match confirmed dimensions and interface requirements, offering OEM and ODM services.
It includes one 12,000 lb double-acting trailer jack, a selector valve, hydraulic hoses, and fittings.
Yes, it is designed to share a compatible existing trailer hydraulic power unit, such as the dump-hoist circuit.
12,000 lb.
20 inches.
3/8-inch BSPP.
The kit includes all necessary hoses and fittings; however, professional installation is recommended.
For technical questions or ordering, contact:
Jason | Email: jason@hydraulicapex.com | Tel/WhatsApp: +86 182-5318-1828
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