Baader Planetarium Steeldrive II Focusing Motor with Controller

SKU: AASTLDRVII MFR: STL-DRVII
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Key Features

  • Achieve pinpoint accuracy with the Steeldrive II focusing motor, perfect for astrophotography.
  • Enjoy precise, automated telescope focusing with a resolution of 2.5 micrometers per step.
  • The Steeldrive II controller supports payloads up to 17.63 lbs (8kg) for robust telescope use.
  • Includes SteelGo II Software for seamless, computerized telescope focus control and automation.
  • Monitor temperature with the included sensor, ensuring optimal performance during observations.
  • Durable aluminum build ensures long-lasting performance for your valuable telescope equipment.
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Special Order?Estimated to Ship: 08/19/2025
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Baader Planetarium Steeldrive II Specifications

  • Material

    Aluminum

  • Payload Capacity

    up to 17.63 lbs (8kg)

  • Resolution

    2.5 Micrometer per step

  • Power Output

    12V/1A PWM

  • Power Consumption

    ca. 0.7 Watt

  • Software

    SteelGo II Software (Download)

  • Weight

    1.60 lbs (730g)

  • UPC Code

    4047825041258

About Baader Planetarium Steeldrive II

From the innovative minds at Baader comes the Steeldrive II Focusing Motor with Controller, a comprehensive platform designed to cater to the unique needs of amateur astronomers. This isn't just another motor focuser; it's a versatile tool that can be adapted to your specific requirements.

The Steeldrive II's "brain" is strategically located in a separate controller, not in the compact housing of the motor itself. This controller not only provides a keypad for manual control but also allows for automatic control via a computer. This dual functionality offers you the flexibility to use the hand control keys for precise, vibration-free focusing or to automate the process for convenience.

The Steeldrive II system is composed of a motor unit and a control unit. The motor unit is connected to the focuser's slow-motion-control via a timing belt, ensuring backlash-free operation. The control unit houses the electronics and also serves as a hand control.

One of the standout features of the Steeldrive II is its ability to connect to two temperature sensors simultaneously, one on the motor unit and one on the control unit. This feature, coupled with the included sensor, allows for automatic drift compensation in the event of significant temperature differences.

While a control unit can manage one motor unit at a time, multiple controllers can be operated in parallel using a computer. The motor is engineered to move to a saved position with utmost precision when used in conjunction with the homing sensor. This high level of precision is maintained even when moving several kilograms over the complete travel of the focuser.

In summary, the Baader Steeldrive II Focusing Motor with Controller is a sophisticated, adaptable tool that brings precision and convenience to your astronomical pursuits.

Baader Planetarium Steeldrive II Features

  • High-precision, temperature-compensating focusing motor with toothed belt drive for heavy loads (up to 8 kg)
  • Prepared for connection to all Baader Steeltrack focusers (classic and Diamond)
  • Contactless end sensor (homing switch) for precise, repeatable positioning to stored absolute positions
  • Incl. hand controller with intuitive operation, can alternatively be controlled via PC with USB interface via ASCOM or SteelGO software (for Windows)
  • Connection for temperature sensors and additional 12 V / 1A PWM current output, e.g. for dew cap heater

Warranty Information

This product has a limited warranty of 24 months for parts and 24 months for labor.

Key Features

  • Achieve pinpoint accuracy with the Steeldrive II focusing motor, perfect for astrophotography.
  • Enjoy precise, automated telescope focusing with a resolution of 2.5 micrometers per step.
  • The Steeldrive II controller supports payloads up to 17.63 lbs (8kg) for robust telescope use.
  • Includes SteelGo II Software for seamless, computerized telescope focus control and automation.
  • Monitor temperature with the included sensor, ensuring optimal performance during observations.
  • Durable aluminum build ensures long-lasting performance for your valuable telescope equipment.

What's in the box:

  • Baader Planetarium Steeldrive II Focusing Motor with Controller
  • Power Supply
  • CAT 7 Cable (3m)
  • SD II Toothed Belt for Steeltrack Focuser
  • Temperature Sensor with Phone Connector
  • Magnet Holder for Homing-Sensor
  • Allen Key (2mm)
  • Self-Securing Closure Tapes (Cable Ties)
  • Baader Planetarium 2 Year Limited Warranty