Introducing PKP Series High Torque Stepper Motors

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Introducing PKP Series High Torque Stepper Motors

Postby om_tech_support_JT » Wed Apr 24, 2013 6:02 pm

Oriental Motor is pleased to announce our new line up of PKP Series High-Torque stepping motors. Now available with more frame sizes, varous windings, and an improved SH spur gearhead option for faster speeds with less backlash!

Frame sizes are 20mm (0.79 in), 28mm (1.10 in), 35mm (1.38 in), 42mm (1.65 in), and 56.4/60mm (2.22/2.36 in). Also offered is an optional 200 or 400 line encoder with either 2 or 3 channels.

PKP Frame Sizes, Product Lineup, Encoder, SH Gear Option.jpg
PKP Frame Sizes, Product Lineup, Encoder, SH Gear Option.jpg (122.01 KiB) Viewed 5947 times

ACHIEVES HIGH TORQUE!
When comparing the new PKP series stepping motors to our older PK series stepping motors, the PKP series offers a torque increase of 1.2 to 1.7 times. This is due to improvements in the rotor/stator design, air gap thickness, increased winding density and magnet material.

PKP vs PK stepping motor torque comparison.jpg
PKP vs PK stepping motor torque comparison.jpg (113.47 KiB) Viewed 5947 times

BENEFITS OF HIGH TORQUE:
1. REDUCED POWER/ENERGY CONSUMPTION
We know that power in watts is volts x current, and we know that torque is proportional to current. Since the PKP series high torque stepping motors offers more available torque that may not be necessary, we can actually turn down the current setting to reduce the motor's torque which in turn will also reduce the motor's energy consumption.

2. REDUCED MOTOR OPERATING TEMPERATURE
Current is also proportional to a motor's operating temperature. Turning down the motor's current setting will also reduce the motor's operating temperature.

PKP less power, energy consumption, and heat reduction.jpg
PKP less power, energy consumption, and heat reduction.jpg (126.61 KiB) Viewed 5947 times

3. INCREASED MOTOR LIFE
It is known that a 15 deg C reduction in bearing temperature doubles its life.

Bearing Life Formula
Logt=6.12-1.4×(n/Nmax)-(0.018-0.006×(n/Nmax))×T

4. ABILITY TO DOWNSIZE MOTOR
Since the PKP series stepping motors offer more available torque, downsizing of the motor is possible in many cases. The image below compares a 56.4 mm frame size PKP series motor and a 42mm frame size standard PK series motor which have very similar performance characteristics.

PKP ability to downsize motors.jpg
PKP ability to downsize motors.jpg (60.58 KiB) Viewed 5947 times


For more information, specifications, or dimensional drawings of the PKP series stepping motors, please click the link below:
http://www.orientalmotor.com/products/p ... ochure.pdf

1.8 DEG STEPPING MOTORS OVERVIEW (INCLUDES OTHER SERIES):
http://www.orientalmotor.com/products/a ... y-1-8.html

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