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 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.
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.
1454010
Fiche technique
Dimensions des axes
RA 85 mm; DEC 80 mm; alloy steel
Réglage fin en azimut
±10°
Diamètre de base sur le plan (mm)
360
Roulements
Preloaded tapered roller and roller-thrust bearings
Gestion des câbles
Internal through-axis routing; 60 mm passage
Ports de communication
RS-232; GPS; ST-4 autoguide; Ethernet
Diamètre de la barre de contrepoids (mm)
60
Matériau de la barre de contrepoids
Stainless steel
Poids de la barre de contrepoids (kg)
13
Contrepoids inclus
No
Référence du plan coté
At 45°: side height 785 mm; front height 673 mm
Codeurs
Absolute on-axis encoders; closed-loop HPS control
Charge d'instruments (kg)
150
Raquette
Metal housing; heated dimmable display and backlit keys; standalone operation
Plage de latitude
20–70°
Consommation selon le fabricant
Approximately 1.5 A sidereal tracking; 4 A maximum slew; 5 A peak
Référence fabricant
10M4010
Précision de pointage selon le fabricant
Less than 20 arcsec with 25-star model; model supports up to 100 points
Contenu standard du fabricant
GM4000 HPS II Mount; Controlbox; Keypad; Counterweight shaft; Cables set; Allen wrenches; Shipping Kit; Includes the shipping wooden pallet-box and pier adapter.
Exemple de suivi du fabricant
Approximately 1 arcsec typical over 15 minutes; approximately 0.6 arcsec RMS with a 25-star model and flexure/polar-error compensation
Limites au méridien
±30° software; ±45° mechanical in RA
Modèle
10Micron GM4000 HPS II
Moteurs
Two-axis AC brushless servo
Type de monture
German equatorial
Poids de la monture sans accessoires (kg)
125
Base de données d'objets
Stellar and deep-sky catalogues; solar system objects, comets, asteroids and artificial satellites; user-defined targets
Modèle de pointage
Up to 100 alignment points; polar, orthogonality and refraction compensation
Commande à distance
Ethernet/Wi-Fi web interface, virtual keypad and compatible computer control
Plage de vitesse de pointage
2–8°/s
Température de fonctionnement standard
−15 to +35 °C
Température de stockage
−40 to +50 °C; not the operating range
Tension d'alimentation (V CC)
24
Vitesses de suivi
Sidereal, solar, lunar and custom rates
Transmission
Timing-belt reduction with automatic backlash recovery
Vis sans fin
32 mm; tempered, ground and lapped alloy steel
Roues dentées
RA: 430 teeth, 330 mm diameter; DEC: 315 teeth, 244 mm diameter; B14 bronze
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
