PRI In-Vacuum Motion Systems

In-Vacuum Motion Systems

IN-VACUUM STEPPER MOTORS:

100% vacuum tested.
Bakeout Temp: 150° C. absolute maximum; 125° C. recommended maximum
Detente Torque: None; motor is variable reluctance type.
Construction: 4 phase, stainless steel case.
Heatsinking required for continuous operation.

Motor Sizes B & C
Outline Drawings	B, BP	C, CP
Static Outgassing: (Notes 1, 2, & 3)	1.0 x 10^-7 Tl/s	1.4 x 10^-7 Tl/s
Ultimate Pressure: (Notes 1, 2, & 3)	1.0 x 10^-9 Torr	2.0 x 10^-9 Torr
Step Size:	15°	1.8°
Stall Torque: (Note 4)	5.8 in. oz.	10 in. oz.
Dynamic Torque: (Note 4)	3.2 in. oz.	6.0 in. oz.
Maximum Speed:	900 pps	1300 pps
Rotor Inertia:	1.0 gm cm²	32 gm cm²
Case Dimensions:	1.062" D x 1.625" L	1.26" D x 1.75" L
Weight:	4.0 oz.	6.0 oz.
Resistance/Phase:	55 Ohms	5 Ohms
Lead Wires:	5, Length = 30"	6, Length = 30"

Note 1: At 25° C after 24 hr. 150° C bake, non-operating.

Note 2: Outgassing rate and pressures will depend on user-supplied heat sinking, duty cycle, operating temperature, vacuum system, and driving electronics.

Note 3: In careful, baked UHV testing at PRI, an ultimate pressure of 4 x 10^-10 Torr was achieved with a size C motor and 140 l/s pumping speed.

Note 4: 2 phase exitation at full power.

Ask for our comprehensive In-Vacuum Motion Systems Brochure, containing motor, stage, and driver specifications, prices, photos, outline drawings, and application notes. If you have a cryogenic application, read our Application Note Using PRI Motors and Stages at Cryogenic Temperatures. Call us at (609) 924-0570 to discuss custom stages or specialized needs.