ELTOOL Keycutters: Performance Data

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Keycutters
How They Work | Performance Data | Sizes and Dimensions | How to Order

Speed is based on flow

At approximately 70% volumetric efficiency the positive displacement ball piston motor will rotate at 900 RPM per GPM flow.

To calculate cutter RPM:

(Flow in gpm x 900)

Gear ratio

Example: KC02 Keycutter with Cutter #103, collant flow 9 GPM: 9(GPM) x 900(RPM of motor per GPM flow) / 4.5(gear ratio of KC02) = 1800 RPM

Torque Is Based On Pressure

Under test conditions, the ball piston motor develops .019 in. lbs. of torque for each PSI of coolant pressure.

To calculate Keycutter torque:

PSI x .019 x gear ratio

Example: KC03 Keycutter with Cutter #302 at 800 PSI coolant pressure: 800(coolant pressure in PSI) x .019 x 5.5(gear ratio of KC03) = 83.6 in. lbs. or 6.96 ft. lbs. of torque.

To calculate metal removal rate: As a general rule, metal removal rate is one cubic inch per minute per horsepower for steel, three cubic inches per minute per horsepower for aluminum.

To calculate theoretical horsepower:

(Pressure in psi x .019) x (Flow in gpm x 900)

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Keycutters | How They Work | Performance Data | Sizes and Dimensions | How to Order

Eltool Corporation | 1665 Central Ave., Cincinnati, OH 45214
Toll Free: 1-877-4ELTOOL (USA) | Phone: (513) 723-1772 | Fax: (513) 721-8974 | Email: info@eltool.com