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| Type | Double-Acting Hydraulic Trailer Jack Single-Jack Hydraulic Trailer Jack Kit Tandem Hydraulic Trailer Jack Kit Trailer Jack Kit with Hydraulic Power Unit Add-On Trailer Jack Kit with Selector Valve | Model | PJS-12-20-K PJD-12-20-K PJS-12-20-ADS-K PJD-12-20-ADS-K |
| Params | Rated Jack Capacity: 12,000 lb per trailer jack Hydraulic Action: Double Acting Nominal Travel: 20 in, as identified by the “20” designation in the published model numbers 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 for kits equipped with a hydraulic power unit Maximum Permitted Distance Between Ground and Bottom of Trailer Frame: 8 in Single Complete Kit Configuration: One 12,000 lb trailer jack, double-acting hydraulic power unit and plumbing components Tandem Complete Kit Configuration: Two 12,000 lb trailer jacks, double-acting hydraulic power unit, plumbing components and flow divider Single Add-On Configuration: One 12,000 lb trailer jack, selector valve, hydraulic hoses and fittings Tandem Add-On Configuration: Two 12,000 lb trailer jacks, selector valve, hydraulic hoses and fittings PJS-12-20-K: Single-jack complete hydraulic kit with HPU PJD-12-20-K: Tandem-jack complete hydraulic kit with HPU and flow divider PJS-12-20-ADS-K: Single-jack add-on kit with selector valve PJD-12-20-ADS-K: Tandem-jack add-on kit with selector valve Power-Jack Mounting Plate Outside Dimensions: Approximately 5.53 in × 5.53 in, subject to verification against the approved installation drawing Recommended Fitting Tightening Torque at Jack Ports: 12–14 ft-lb Installation Type: Trailer-frame-mounted hydraulic landing leg | Material | Apex Production Material: Must be entered according to the confirmed Apex bill of materials and approved manufacturing drawing Recommended Form Entry Pending BOM Confirmation: High-strength structural-steel jack housing, precision-machined steel hydraulic components, steel mounting plate, hydraulic sealing system and corrosion-resistant industrial coating |
| Applicable Industry | Dump Trailer Manufacturing Gooseneck Trailer Manufacturing Flatbed Trailer Manufacturing Equipment Trailer Manufacturing Livestock Trailer Manufacturing Horse Trailer Manufacturing Cargo Trailer Manufacturing Vehicle and Car-Hauler Trailer Manufacturing Heavy-Duty Trailer Upgrades Trailer Repair and Replacement Parts | ||
Available in single-jack and tandem-jack configurations. Available as a complete kit with hydraulic power unit or as an add-on kit with selector valve. Double-acting hydraulic operation provides powered raising and powered lowering. The 20-inch nominal travel configuration is designed for heavy-duty trailer landing, leveling and support functions. Tandem configuration uses two 12,000 lb rated trailer jacks and includes a flow divider in the complete PJD-12-20-K kit. Add-on selector-valve configurations can share a compatible existing trailer hydraulic power unit with the dump-hoist circuit. Maximum flow and pressure requirements are clearly defined for hydraulic-system matching. The 3/8-inch BSPP jack ports provide a defined hydraulic connection standard. Suitable for new trailer production, hydraulic conversion of manual landing legs and replacement applications. Apex can manufacture functionally compatible hydraulic trailer jack systems according to confirmed dimensions, interface requirements and approved drawings.

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