Motor pumps

Electric motor pumps24 V · 48 V

ALMOTT electric pump: brushless PMSM motor with a gear pump

A brushless ALMOTT PMSM motor and a gear pump in one compact 24 V or 48 V unit: hydraulic power exactly where the machine needs it, without hydraulic piping from the engine.

  • Reduced installation costs compared with hydraulic piping
  • Fast project turn-around
  • Customised control to your application
  • Two frames, 181 and 203, with gear pumps from 4.5 to 16 cm³

ApplicationsBuses·Trucks·Boats·Construction and work machines

Models

Electric motor data

Every unit runs at 2 500 rpm; the voltage and the frame set the power. The last part of the item number is the gear pump displacement in cm³.

ItemSystemRated powerRated speedRated currentRated torqueDutyGear pumpMass
181.06.24.A4.524 V6 kW2 500 rpm264.8 A21.8 NmS2 4.5 min / S3 25 min20A4,5X06625.5 kg
181.10.48.A4.5
181.10.48.A6.3
181.10.48.A8.2		48 V10 kW2 500 rpm221.7 A38.2 NmS2 25 min20A4,5X066
20A6,3X066
20A8,2X066		30.1 kg
203.08.24.A6.3
203.08.24.A8.2		24 V8 kW2 500 rpm357.7 A29.4 NmS2 15 min20A6,3X066
20A8,2X066		28.7 kg
203.20.48.A1648 V20 kW2 500 rpm——S2 15 min20A16X06638.7 kg

S2: short-time duty for the stated minutes from cold. S3: intermittent duty. Dimensions and the mounting pattern on request; the pump figures are below.

Hydraulic data

Group 20 external gear pump, fitted straight onto the motor shaft, counter-clockwise. Flow is at the rated 2 500 rpm with the pump maker's volumetric efficiency; the pressure is what the unit holds in the stated duty.

ItemGear pumpDisplacementFlow at 2 500 rpmMax pressureHydraulic powerPorts P / SDuty
181.06.24.A4.520A4,5X0664,5 cm³/rev10,2 l/min250 bar4,3 kWØ13,1 / Ø13,1 mmS2 4.5 min / S3 25 min
181.10.48.A4.520A4,5X0664,5 cm³/rev10,2 l/min250 bar4,3 kWØ13,1 / Ø13,1 mmS2 25 min
181.10.48.A6.320A6,3X0666,3 cm³/rev14,5 l/min250 bar6,0 kWØ13,1 / Ø13,1 mmS2 25 min
181.10.48.A8.220A8,2X0668,2 cm³/rev18,9 l/min250 bar7,9 kWØ13,1 / Ø13,1 mmS2 25 min
203.08.24.A6.320A6,3X0666,3 cm³/rev14,5 l/min250 bar6,0 kWØ13,1 / Ø13,1 mmS2 15 min
203.08.24.A8.220A8,2X0668,2 cm³/rev18,9 l/min200 bar*6,3 kWØ13,1 / Ø13,1 mmS2 15 min
203.20.48.A1620A16X06616,0 cm³/rev38,4 l/min250 bar16,0 kWØ14,2 / Ø19 mmS2 15 min

Hydraulic power = flow × pressure / 600. Ports: SAE-type flanged connections, pressure / suction bore. *Limited by the rated torque of the motor; the pump itself is rated 250 bar.

Working fluid
Mineral hydraulic oil, 16 to 200 mm²/s
Filtration
15 – 25 µm
Fluid temperature
−25 … +80 °C
Ambient temperature
−22 … +55 °C
Inlet pressure
0,8 – 2,2 bar absolute
Pump speed limit
3 500 rpm (16 cm³: 2 500 rpm)
Send enquiry Brochure (PDF)

Motor patent registered in several countries: BG67504B1 · EP4012894A1 · CA3141849C · US11804740B2