UHV Stepper Motor D42.3

This 550 mNm, NEMA 17 size UHV stepper motor offers 200 full steps per revolution (1.8° step angle). ALM’s stepper motors are specifically designed for use in UHV environments, making them ideally suited for low-speed precision in-vacuum manipulation without the use of particle generating motion feed-throughs. The considerable reduction in mechanical complexity, absence of metal to metal sliding surfaces, and low outgassing characteristics make these motors especially suitable for sensitive handling applications.

 

Features

UHV-compatible
Suitable for use below 1 x 10-10 mBar (7.5 x 10-11 Torr) and bakeable to 200 °C.

Standard size and characteristics
NEMA 17 size and 200 full steps per revolution (1.8° step angle).

Embedded temperature sensor
Supplied with embedded Type-K thermocouple as standard. PT100 RTD is available as an alternative.

Compatible with UHV Gearhead
Step resolution can be increased by adding an SG35 (5:1 ratio) inline spur gearhead.

Works best with AML stepper motor drives
Continuous running in vacuum at high torque and step rates with AML drive.

Customizable
Contact our sales team to discuss the feasibility of your specific, custom requirements

Options available
Radiation resistant and cryogenic versions available

Specifications

MODELS DESCRIPTION
D42.3 550 mNm UHV stepper motor
D42.3-C D42.3, Cryogenic -196 °C to +190 °C
D42.3-H D42.3, Dry lubricated hybrid ceramic bearings
D42.3-P D42.3 with PT100 temperature sensor in lieu of thermocouple
D42.3-R D42.3, Gamma radiation hardened
D42.3-X D42.3 with shaft modification
Vacuum environment <1×10-10 mbar
Operating temperature -65 °C to +190 °C
Temperature sensor Type ‘K’ thermocouple standard or PT100 optional
Bakeout temperature 200 °C
Step angle 1.8°
Step angle tolerance ±5%
Lead length 1.5m

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