10Micron GM4000 HPS II

Name: 10Micron GM4000 HPS II
Brand: 10Micron
SKU: 1454010

10Micron GM4000 HPS II 10Micron GM4000 HPS II is a German equatorial GoTo mount rated for 150 kg of instrumentation. The mount weighs 125 kg without accessories and uses absolute encoders mounted directly on the axes, brushless servo motors and a precision worm drive.

Manufacturer model: 10Micron GM4000 HPS II · Specifications checked against manufacturer data on 2026-11-04

10Micron GM4000 HPS II

10Micron GM4000 HPS II is a German equatorial GoTo mount rated for 150 kg of instrumentation. The mount weighs 125 kg without accessories and uses absolute encoders mounted directly on the axes, brushless servo motors and a precision worm drive.

Drive and mechanical construction

The published slew range is 2–8°/s. Its mechanical system uses 60 mm stainless-steel counterweight-shaft hardware, preloaded bearings and timing-belt reduction with automatic backlash recovery.

Pointing and tracking

The internal pointing model supports up to 100 alignment points and compensation for polar alignment, orthogonality, atmospheric refraction and system flexure. Manufacturer tracking examples refer to a modelled system; telescope rigidity, model quality and observing conditions still affect results.

Control and power

A heated, dimmable keypad provides standalone operation. Ethernet, Wi-Fi/web control and RS-232 support remote workflows, with separate GPS and ST-4 interfaces. The mount uses 24 V DC; power-supply and receiver connections must match the control-box generation.

Configuration and equipment

The native equatorial layout is intended for imaging and observing within the published latitude and meridian limits. Counterweights are sold separately. The technical table lists the standard package and separates operating temperature from storage limits.

10Micron manufacturer documentation

10Micron model technical sheet

10Micron dimensional drawing

Compatibility notes

The current GM4000 technical sheet specifies 4 A maximum-slew and 5 A peak; older brochures give 5 A and 6 A. Current model technical-sheet values are selected. Its 60 mm internal cable passage is distinct from its 60 mm counterweight shaft.

Referencia 1454010

Ficha técnica

Axis dimensions: RA 85 mm; DEC 80 mm; alloy steel
Azimuth fine adjustment: ±10°
Base diameter in family drawing (mm): 360
Bearings: Preloaded tapered roller and roller-thrust bearings
Cable management: Internal through-axis routing; 60 mm passage
Communication ports: RS-232; GPS; ST-4 autoguide; Ethernet
Counterweight shaft diameter (mm): 60
Counterweight shaft material: Stainless steel
Counterweight shaft weight (kg): 13
Counterweights included: No
Dimensional drawing reference: At 45°: side height 785 mm; front height 673 mm
Encoders: Absolute on-axis encoders; closed-loop HPS control
Instrument payload (kg): 150
Keypad: Metal housing; heated dimmable display and backlit keys; standalone operation
Latitude range: 20–70°
Manufacturer current figures: Approximately 1.5 A sidereal tracking; 4 A maximum slew; 5 A peak
Manufacturer part number: 10M4010
Manufacturer pointing accuracy: Less than 20 arcsec with 25-star model; model supports up to 100 points
Manufacturer standard package: GM4000 HPS II Mount; Controlbox; Keypad; Counterweight shaft; Cables set; Allen wrenches; Shipping Kit; Includes the shipping wooden pallet-box and pier adapter.
Manufacturer tracking example: Approximately 1 arcsec typical over 15 minutes; approximately 0.6 arcsec RMS with a 25-star model and flexure/polar-error compensation
Meridian limits: ±30° software; ±45° mechanical in RA
Model: 10Micron GM4000 HPS II
Motors: Two-axis AC brushless servo
Mount type: German equatorial
Mount weight without accessories (kg): 125
Object database: Stellar and deep-sky catalogues; solar system objects, comets, asteroids and artificial satellites; user-defined targets
Pointing model: Up to 100 alignment points; polar, orthogonality and refraction compensation
Remote control: Ethernet/Wi-Fi web interface, virtual keypad and compatible computer control
Slew speed range: 2–8°/s
Standard operating temperature: −15 to +35 °C
Storage temperature: −40 to +50 °C; not the operating range
Supply voltage v DC: 24
Tracking rates: Sidereal, solar, lunar and custom rates
Transmission: Timing-belt reduction with automatic backlash recovery
Worm screws: 32 mm; tempered, ground and lapped alloy steel
Worm wheels: RA: 430 teeth, 330 mm diameter; DEC: 315 teeth, 244 mm diameter; B14 bronze