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Dual Stage

The OP3530 electric oil pump is a 2-stage positive displacement gear pump featuring a brushless DC motor and integrated motor drive controller. Equipped with both a scavenge section and feeder section, the pump can be used in a dry sump arrangement. The pump was designed to work with most light to medium weight oils including motor oil, hydraulic fluid, transmission fluids and some gear lubes.

Brushless DC Motor & Drive Controller

Available with 12 VDC and 24 VDC electric motors. Brushless, permanent magnet motors are combined with EMP designed motor control electronics to provide a smart, high efficiency, long life pump. Brushless motors have no contacting parts to wear and reduce life. Features include protections against

  • locked rotor
  • over temperature
  • over current
  • over voltage
  • reverse battery

OP3530 offers a two-stage flow capacity, with a scavenge stage of up to 3.5 gal/min
and a pressure stage of up to 3.0 gal/min. Efficient mechanical design along with proprietary software allows sub-zero cold start capability.

EMP pumps can be run at any speed between the programmed minimum and maximum speed to minimize power consumption and noise.  Variable speed can be achieved through CAN speed command or PWM input by varying the duty cycle of the signal.  In the absence of CAN speed command or PWM signal the pump will run a preprogrammed default speed and operate in an on/off manner.

EMP pumps feature positive displacement gerotor type pumping elements, allowing for simpler, quieter, more compact pump design while improving performance and minimizing power loss.

EMP pumps are all 100% flow tested and incorporate internal geometry features to ensure the pump will remain wet for improved priming capability.

EMP pumps are sealed and fully submersible for long life operation when exposed to the outside environment and its elements.  The pumps are designed and have been validated to withstand submersion and direct spray pressure wash.

Oil pump heads have two sets of suction and discharge ports for ease of installation and pumping.

EMP pumps can be controlled manually using EMPower Connect™ Service Tool. The software of these pumps can be changed or upgraded in the field using this tool.  History data can be downloaded, includes…

  • Hours of operation
  • Temperature data
  • Voltage data
  • Calibration information
  • Diagnostic fault codes
  • Performance Data
  • General oil transfer
  • Lubrication
  • Cooling
  • Hybrids
  • Oil scavenging
  • Oil Change
  • By-Pass Filtration
Pump Specifications
ConstructionCast AluminumCast Aluminum
Dimensions8.0" x 5.5" x 5.5"8.0" x 5.5" x 5.5"
Weight11 lbs11 lbs
Maximum Current25 Amps25 Amps
Flow CapacityScavenge Stage: Up to 3.5 gal/min
Pressure Stage: Up to 3.0 gal/min
Scavenge Stage: Up to 3.5 gal/min
Pressure Stage: Up to 3.0 gal/min
Maximum Pressure80 psi80 psi
Operating Fluid Temperature32° to 212° F
Sub-zero operation is application dependent
32° to 212° F
Sub-zero operation is application dependent
Operating Ambient Temperature-40° to 203° F-40° to 203° F
Storage Temperature-58° F to 257° F-58° F to 257° F
Rated Voltage9 - 18 VDC18 - 32 VDC
Control OptionsOn/Off
CAN J1939
CAN J1939
Performance Characteristics
Dual Stage Performance Characteristics Diagram
Dual Stage Diagram
Dual Stage Diagram
Dual Stage Diagram