Stanley HP8BD Portable Hydraulic Power Unit (5 or 8 gpm)

Stanley HP8BD Portable Hydraulic Power Unit (5 or 8 gpm) Product Guide

How This Power Unit Fits Into A Hydraulic Tool Package

The Stanley HP8BD provides hydraulic flow through two selectable circuits set at either 5 or 8 gallons per minute, operating at a maximum pressure of 2,000 PSI. It is powered by an 18 HP Briggs & Stratton Vanguard OHV gasoline engine which drives the hydraulic pump. This unit supports Type II and Type III hydraulic circuits with HTMA flush-face couplers, making it compatible with a range of connected hydraulic tools such as breakers, saws, drills, pumps, tampers, and impact wrenches.

This power unit is designed for use in dynamic jobsite conditions requiring a portable source of hydraulic power. Its open-center hydraulic circuit arrangement is typical for standard tool operation rather than high-pressure specialized hydraulic packs. The dual flow setting allows adjusting output to suit the tool's specific flow requirement, preventing mismatched flow or pressure that could affect tool operation. Compared to electric or trailer-mounted power units, this engine-driven model is suitable for locations without electrical power access and supports outdoor and restricted-access job conditions.

Power Unit Planning Notes

The unit includes a 3-gallon hydraulic reservoir and a 5.5-gallon fuel tank allowing longer jobs without frequent refilling. It weighs 330 lbs, so plan lifting and positioning accordingly, using the Lift & Latch handle system and fold-up side handles. The four no-flat tires support transport over rougher terrain but require secure placement to prevent rolling, especially on boat decks or inclined surfaces.

Since the power source is a gasoline engine, position the unit outdoors or in a ventilated location. Take care to direct the exhaust and muffler outlet away from workers, sensitive coatings, hoses, and heat-sensitive surfaces. For job sites near water or municipal locations, verify local hydraulic fluid requirements. The Stanley HP8BD uses standard hydraulic oil; if a biodegradable or environmentally acceptable fluid is required, discuss this in advance.

The unit ships by freight on a pallet and may require a loading dock, forklift, or liftgate for delivery. For longer hydraulic hose runs, consider friction loss and whether larger-diameter hoses or a higher flow setting is required to maintain tool performance. Included HTMA flush-face couplers must match the hydraulic tools’ couplers to confirm compatibility. Maintain and inspect hoses, couplers, filters, and oil levels during use. Return the unit clean with all accessories intact to avoid additional charges for rentals or service access.