Pump and Motor Sizing Tool

Horsepower, shaft speed, and hot-liquid limits for Wanner Hydra-Cell Pro® pumps. Equations match the FDPP worksheet and the 2026 Wanner datasheets.

1. Duty

Desired flow (GPM)Maximum pressure (PSIG)Liquid temperature (F)Above 160°F changes the horsepower cap.Motor nameplate speed1800 and 1200 are the common frames. 900 is the 8-pole option.

Oil cooler installed — hold hydraulic oil near 180°F

2. Pump and cam

Pump modelEnter a flow, a pressure, and the temperature.

CamChoose a pump first.Pump head

Select a pump first

3. Motor you plan to install

The recommended frame follows the drive and the liquid temperature. Above 160°F the cap is on duty horsepower, not the nameplate.

How the motor drives the pump

Standard motor horsepowerEnter the duty first.

Maximum pressure at this motor

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Hot-liquid horsepower chart

Caps are applied horsepower (duty HPr), not the motor nameplate. Above 160°F without an oil cooler, stay at or under the right-hand number. With a cooler, or at 160°F and below, use the left-hand number. Source: FDPP high-temperature motor sizing article.