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Pacific Scientific :: POWERMAC II® P & M Hybrid Step Motors


POWERMAX II sets the world performance standard for NEMA 23 step motors. At up to 253 oz-in.holding torque, you wont' find a more powerful two inch stepper.

Another POWERMAX II advantage? Design for manufacturability. That makes these compact steppers economical without compromising reliability or features - such as long life bearings, high temperature insulation and quality magnet materials. DFM also means we can build POWERMAX II to your specifications, in the volumes you need, according to your JIT or other delivery schedule. Whether you require a simple drive shaft flat or an integral lead screw, POWERMAX II motors are made to your order.

Standard POWERMAX II motors come in half, single and two stacks that provide holding torques from 42 to 253 oz-in.

Features

Benefits

Two year warranty
High quality, dependable operation
New polymer encapsulated stator
Exceptional thermal dissipation
New polymer end bell with threaded inserts
End bell runs cooler, provides greater flexibility in mounting encoder and brake options
Largest available shaft diameter on a NEMA 23 stepper
Withstands high radial and axial loads; supports numerous shaft modifications
Oversized 30mm bearings
Increases bearing fatigue life (L10), extends motor life, reduces downtime
Sigmax technology
Increases available torque
Optional low inertia rotor
Produces the highest acceleration rate possible
Optional solid rotor
High low speed torque, fast settling, superior stiffness and damping
Precision ground rotor OD and honed stator ID for concentric air gap in an economical motor design
High quality performance in an economical motor design
Exposed laminations aids thermal dissipation
Improved heat dissipation extends motor life, reduces downtime
High performance gearheads
Increases torque range in a reliable, complete package


Sample Model Number Code

Selection Overview

POWERMAX II HYBRIDS

NEMA 23

(2.3" square frame)

Holding Torque

oz-in. (Nm)

M Series - Sigmax® Technology
1 stack

95-144
(0.67-1.02)

2 stacks

161-253
(1.13-1.79)


P Series - Standard Hybrid

1/2 stack

42-61
(0.29-0.43)

1 stack

77-116
(0.54-0.82)

2 stacks

138-214
(0.97-1.51)


M "J" Series - Sigmax Technology - Low Inertia Rotor

1 stack

99-140
(0.70-0.99)

2 stacks

178-252
(1.26-1.78)


P "J" Series - Sigmax Hybrid - Low Inertia Rotor

1 stack

79-111
(0.55-0.78)

2 stacks

142-201
(1.00-1.42)