- Hydraulic electric pump for lifting, bolting, or applying pressure with a hydraulic cylinder (sold separately) at a faster speed and for longer periods of time than a hand pump.
- Advances and releases a single-acting cylinder or powers a hydraulic tool, and can hold a load.
- Internal and external pressure valves help prevent pump overload, and thermal switch shuts off motor when oil temperature exceeds 150 degrees Fahrenheit.
- Two-speed pump requires fewer cycles to move a load than a similarly rated single-speed pump, increasing productivity.
- Maximum operating pressure rating of 10,000 pounds per square inch (psi).
The Enerpac PUJ-1200B two-speed, three-way valve hydraulic
electric pump is for lifting, bolting, or applying pressure at
faster speeds and for longer periods of time than a hand pump in
construction, manufacturing, and maintenance and repair
applications that do not require load holding. It can advance a
single-acting or a double-acting cylinder or power a hydraulic
tool, and can hold a load. A non-adjustable internal pressure
valve and an adjustable external pressure valve
help protect the pump from overload. A thermal switch shuts down
the motor when the oil temperature exceeds 150 degrees Fahrenheit
(65 degrees Celsius). This two-speed pump is for applications
where there is little or no load initially, but where increased
force is needed when the load is applied. In the first stage, the
pump supplies lower pressure with higher flow until a load is
detected. Once a load is detected, the pump switches to the
second stage, which supplies higher pressure and lower flow. The
pump can start under full load and is intended for intermittent
duty-cycle applications, such as punching. The pump's molded body
helps protect it from damage due to bumps, abrasions, and
contaminants, such as dirt and water. The valves have manual
control to advance and retract a tool. It has a built-in handle
for carrying the pump between locations. The pump has 3/8"
National Pipe Taper (NPT) threaded input and output ports for
connecting to a hose or gauge (sold separately). A pendant switch
controls the motor and valves, and the switch has a 10-foot cord
to allow the operator to control the pump from a distance. The
pump has a 5-foot power cord.
Specifications
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Maximum operating pressure, first stage 200 pounds per square
inch (psi) Maximum operating pressure, second stage 10,000 psi
Maximum output flow rate per minute, first stage 200 cubic in.
Maximum output flow rate per minute, second stage 20 cubic in.
Usable oil capacity 0.5 gallon (115 cubic in.) Motor Rating 0.5
horsepower, universal Motor current 9 amp at 10,000 psi and
12,000 revolutions per minute Motor voltage 115V Maximum
operating temperature 150 degrees Fahrenheit (65 degrees Celsius)
Output valve type Three-way, two-position Power source 15
amp/120V, 50/60 Hertz, grounded, single-phase Operating noise
level 85 to 89 decibels (dBA) Weight 24 lb. Dimensions 14.25 x
9.62 x 9.62 inches (H x W x D)
H is height, the vertical distance from lowest to highest point;
W is width, the horizontal distance from left to right; D is
depth, the horizontal distance from back to front.
Hydraulic pumps lift, bolt, or apply pressure to objects by
pressurizing and moving hydraulic fluid. A hydraulic pump
consists of a base, a reservoir that holds hydraulic fluid, and
an operating mechanism, such as a handle or foot pedal, an
electric motor, compressed air, or a oline engine. When the
operating mechanism is activated, pressurized hydraulic fluid
from the reservoir is delivered through an attached hose to a
hydraulic cylinder. The pressurized hydraulic fluid in the
cylinder lifts the cylinder’s piston, which in turn lifts the
load. Hydraulic hand pumps are usually made of steel, or aluminum
and nylon, and can be single-speed or two-speed. They are used in
a wide range of applications, such as construction,
manufacturing, and maintenance and repair applications in both
industrial and home settings.
Enerpac manufactures industrial hydraulic equipment for lifting,
workholding, and other applications, and provides integrated
lifting solutions for bridge construction, mining, shipbuilding,
and other industries. The company, founded in 1959, is
headquartered in Menominee Falls, WI.