Motorized Precision Vertical Positioner 940-0218

Motorized Vertical Positioning Stage 940-0218 provides high-precision positioning and smooth travel for loads up to 10 kg. Together with high quality linear bearing guide the system ensures rigid movement across all range of travel and long lifetime.


  • True vertical elevation of the platform
  • Compact design
  • Long life time
  • Vacuum version available

Based on specifics of application other stepper motors or servos can be used. Stepper motor can be equipped with linear encoder and brake.


940-0218-02 model is constructed for operation in clean room coditions, with cleanliness class up to 100. This model is also equipped with vacuum sleeve for dust removal from inside the stage, which accumulates during stage operation.


Estimated delivery time: from 5 - 6 days

Code Weight Price Delivery Add to cart
940-0218-01 4.05 kg Request Request To cart
940-0218-02 4.5 kg Request Request To cart
  940-0218-01 940-0218-02
Travel range 25.4 mm (1 inch)
Resolution in full step 5 µm -
Resolution in 1/256 step 0.019 µm* -
Encoder pulses per revolution by request 4000
Travel per 1 pulse - 0.36 µm
Lead srew pitch 1 mm 1.44 mm**
Wedge reduction rate 1 : 1
Unidirectional Repeatability 1.5 µm
Bidirectional Repeatability 3 µm
Accuracy 10 µm
Lift parallelisim 35 µm
(by request up to 15 µm)
Maximum speed 20 mm/s 25 mm/s
Maximum load capacity 10 kg
(15 kg by request)
10 kg
Stepper motor 4247 -
Brushless DC motor - DB42-100
Brake By request +
Optocoupler end limit switches 2 3
Switch polarity Pushed is open
Motor connector DB9(M) By request
Material Aluminium
Finish Black anodized hard cover
Weight 4.05 kg 4.5 kg


* With 980-0040-USB controller.

** Screw coated with Blacklce TFE coating and equipped with plastic anti-backlash self-lubricating nut, which provides up time equal to 7 million cycles.

Eksma Optics is a member of: Paysera
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