UHV-compatible
Suitable for use below 1 x 10-10 mBar (7.5 x 10-11 Torr) and bakeable to 200 °C.
D-Series
UHV Stepper Motors.
AML UHV-compatible hybrid stepper motors are available in a range of sizes with holding torques from 75 mNm to 1 Nm. The current fourth-generation motors are the culmination of 40 years of experience in the design and manufacture of UHV motors; suitable for use in vacuum applications to below 1x10-10 mbar (7.5x10-11 Torr).
Hand-built and tested in our ISO Class 7 cleanroom
Manufactured in West Sussex, UK, we extensively test every motor to meet our high standards
Bespoke customisations available to suite your specific application requirements
D35.1
NEMA 14
Works best with AML stepper motor drives
Continuous running in vacuum at high torque and step rates with AML drive.
Standard size and characteristics
NEMA 14 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.
Customisable
Contact our sales team to discuss the feasibility of your specific, custom requirements
Compatible with UHV Gearhead
Step resolution can be increased by adding an SG35 (5:1 ratio) inline spur gearhead.
Options available
Radiation resistant and cryogenic versions available
Smallest motor we manufacture: ideal for space limited applications
Fitted to our range of standard UHV-compatible stages
| Order Code | Description |
Price
|
|---|---|---|
| D35.1 | 75 mNm UHV stepper motor | 660.00840.00785.00 |
| D35.1-C | D35.1, Cryogenic -196 °C to +190 °C | 753.00960.00895.00 |
| D35.1-H | D35.1, Dry lubricated hybrid ceramic bearings | 753.00960.00895.00 |
| D35.1-P | D35.1 with PT100 temperature sensor in lieu of thermocouple | 705.00895.00840.00 |
| D35.1-R | D35.1, Gamma radiation hardened | 753.00960.00895.00 |
| D35.1-X | D35.1 with shaft modification | 775.00985.00920.00 |
D42.1
NEMA 17
Our most popular motor
A good compromise between size and power.
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).
Customisable
Contact our sales team to discuss the feasibility of your specific, custom requirements.
Compatible with UHV Gearhead
Step resolution can be increased by adding an PG42 gearhead.
Embedded temperature sensor
Supplied with embedded Type-K thermocouple as standard. PT100 RTD is available as an alternative.
Works best with AML stepper motor drives
Continuous running in vacuum at high torque and step rates with AML drive.
| Order Code | Description |
Price
|
|---|---|---|
| D42.1 | 250 mNm UHV stepper motor | 676.00860.00805.00 |
| D42.1-C | D42.1, Cryogenic -196 °C to +190 °C | 769.00980.00915.00 |
| D42.1-H | D42.1, Dry lubricated hybrid ceramic bearings | 769.00980.00915.00 |
| D42.1-P | D42.1 with PT100 temperature sensor in lieu of thermocouple | 721.00915.00860.00 |
| D42.1-R | D42.1, Gamma radiation hardened | 769.00980.00915.00 |
| D42.1-X | D42.1 with shaft modification | 791.001,005.00940.00 |
D42.2
NEMA 17
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).
Customisable
Contact our sales team to discuss the feasibility of your specific, custom requirements.
Compatible with UHV Gearhead
Step resolution can be increased by adding an PG42 gearhead.
Embedded temperature sensor
Supplied with embedded Type-K thermocouple as standard. PT100 RTD is available as an alternative.
Works best with AML stepper motor drives
Continuous running in vacuum at high torque and step rates with AML drive.
Options available
Radiation resistant and cryogenic versions available.
| Order Code | Description |
Price
|
|---|---|---|
| D42.2 | 500 mNm UHV stepper motor | 745.00945.00885.00 |
| D42.2-C | D42.2, Cryogenic -196 °C to +190 °C | 838.001,065.00995.00 |
| D42.2-H | D42.2, Dry lubricated hybrid ceramic bearings | 838.001,065.00995.00 |
| D42.2-P | D42.2 with PT100 temperature sensor in lieu of thermocouple | 790.001,005.00940.00 |
| D42.2-R | D42.2, Gamma radiation hardened | 838.001,065.00995.00 |
| D42.2-X | D42.2 with shaft modification | 860.001,095.001,025.00 |
D57.1
NEMA 23
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 23 size and 200 full steps per revolution (1.8° step angle).
Customisable
Contact our sales team to discuss the feasibility of your specific, custom requirements
Compatible with UHV Gearhead
Step resolution can be increased by adding an PG57 gearhead.
Embedded temperature sensor
Supplied with embedded Type-K thermocouple as standard. PT100 RTD is available as an alternative.
Works best with AML stepper motor drives
Continuous running in vacuum at high torque and step rates with AML drive.
Options available
Radiation resistant and cryogenic versions available.
| Order Code | Description |
Price
|
|---|---|---|
| D57.1 | 1,000 mNm UHV stepper motor | 1,034.001,315.001,230.00 |
| D57.1-C | D57.1, Cryogenic -196 °C to +190 °C | 1,127.001,430.001,340.00 |
| D57.1-H | D57.1, Dry lubricated hybrid ceramic bearings | 1,127.001,430.001,340.00 |
| D57.1-P | D57.1 with PT100 temperature sensor in lieu of thermocouple | 1,079.001,370.001,285.00 |
| D57.1-R | D57.1, Gamma radiation hardened | 1,127.001,430.001,340.00 |
| D57.1-X | D57.1 with shaft modification | 1,149.001,460.001,365.00 |