Turning Horse Power
700 West Main Street Azle Texas 76020
Machine and Cutting Tools Sales 817.444.5540 Fax 817.444.0263

Turning Horsepower Requirement

Horsepower Required at Spindle

HPs = Q × P

HPs = horsepower at spindle (hp)

Q = metal removal rate (in3/min)

P = unit power factor horsepower

per cubic inch per minute

Horespower Required at Motor

HPm = (Q × P) ÷ E

HPm = horsepower at motor (hp)

Q = metal removal rate (in3/min)

P = unit power factor horsepower

per cubic inch per minute

E = efficiency of spindle drive

Torque Required at Spindle

Ts = 63030hps ÷ n

Ts = Torque at spindle in inch-pounds

n = RPM

Enter depth of cut in inches (ap)

Enter workpiece diameter (D)

Enter feed rate in IPR (f)

Enter cutting speed in SFM (vc)

Enter SECO material group #

Click here to look up Seco Material Group

Enter machine tool efficiency % (see table below)

Cubic inches removed per minute (Q)

Required Horsepower at spindle (HPs)

Required Horsepower at motor (HPm)

Torque at Spindle (Ts)

Machine Efficiency Table

.90 Direct drive

.85 One-belt drive

.70 Two-belt drive

.70 Geared head

Application Information Courtesy Seco Carboloy

Order and Sales Information

To Place order call John Nelson at 817.444.5540 or E-mail John Nelson.

We accept Visa/MasterCard

Personal Check, Money Orders and Cashiers check.

[ Home ] [ Up ]