10 Micron - GM 4000 HPS II Equatorial Mount Head with Precision Absolute Axis-Encoders
The 10 Micron GM4000 HPS II Equatorial Mount is engineered to accommodate observatory equipment weighing up to 330 lbs, making it an excellent choice for remote observation setups due to its robust and precisely machined structure. With this impressive payload capacity, it can typically support refractors up to 300mm, Newtonian reflectors up to 400mm, and Cassegrains up to 600mm in size.
Equipped with dual-axis absolute encoders, the GM4000 HPS ensures remarkable accuracy, particularly beneficial for extended exposure imaging. Its slewing speed ranges from 2° to 8° per second (with a rate of 6° per second in Right Ascension), providing efficient tracking of celestial objects.
10 Micron GM 4000 HPS II Equatorial Mount Head with Precision Absolute Axis-Encoders
GM 4000 HPS Features
- The 10 Micron GM 4000 HPS Mount is designed for observatory equipment up to 330 lbs, suitable for remote observation systems.
- Supports telescopes like refractors up to 300mm, Newtonian reflectors up to 400mm, and Cassegrains up to 600mm.
- Features dual-axis servo brushless motors and zero backlash timing reduction for precise slewing and tracking.
- Works in latitudes from 20°-70°.
- Counterweight shaft included, 60mm diameter stainless steel.
- 24V DC power supply.
- Utilizes classic bronze wormwheels (244mm DEC and 330mm RA) and alloy steel worms (32mm).
- Includes a detachable control box with secure connections and locking screws.
- Prevents cable clutter with cable passage hole and operates on low voltage (100W).
- Keypad control available with red backlight and integrated heater for all observing conditions.
- Connectivity options include RS-232 or Ethernet ports for computer control.
- Star database includes stars up to 16th magnitude and various deep sky catalogs.
- Offers accuracy up to 15 arcseconds for flexure compensation, suitable for long exposure imaging without autoguiding.
- Slewing speed ranges from 2° to 8° per second, with 6° per second in Right Ascension
Dual Axis Absolute Encoders for Accurate Tracking and Slewing
The GM4000 HPS features dual axis absolute encoders. This gives it stunning accuracy for ultimate long exposure imaging. The slewing speed ranges from 2° - 8° per second (6° per second in Right Ascension). Tracking on any celestial object can be done for up to four hours since tracking can go 30° past the meridian if needed.
The star database consists of stars up to the 16th magnitude as well as various deep sky catalogs and coordinates systems. With accuracy of up to 15 arcseconds to compensate for flexure, long exposure imaging is a breeze without the need for autoguiding!


Accomodates Payloads of up to 330 lbs
The 10 Micron GM4000 HPS Equatorial Mount is designed to support observatory equipment with payloads up to the 330 lb range, making it an optimal choice for remote observation systems with its rigid precisioned machined body. With this payload capacity, generally refractors up to 300mm, Newtonian reflectors up to 400mm and Cassegrains up to 600mm can be mounted. With dual axis servo brushless motors with zero backlash timing reduction and classic bronze wormwheels (244mm DEC and 330mm RA) and allow steel worms of 32mm size , the 10 Micron GM 4000 HPS is ideal for accurate and smooth slewing and tracking with extremely heavy payload capacity to support higher end astroimaging and scientific research.
Detachable Electronic Box for Easy Cable Management and Control via Keypad
The 10 Micron GM4000 HPS includes a detachable control box with secure connection and locking screws. With the included cable passage hole, this setup prevents cable clutter and easy controlling of the mount with a low voltage of 100W. The included keypad can be used to control the mount rather than an external computer and with a red backlight and integrated heater, can be used in virtually any observing setting. However a computer can still be used with the RS-232 or ethernet ports.
| Brand | 10 Micron |
|---|---|
| Free Shipping | Does Not Qualify for Free Shipping |
| GPS | Yes |
| Mount Motor Drive | DC Servo Motors |
| Case Included | No |
| Mount Load Capacity | 330 lbs |
| Slew Speeds | Adjustable from 2°/s to 8°/s (6°/s in a.r.) Special version 48V DC from 2°/s to 12°/s (10°/s in a.r.) |
| Power Requirements | 24 V DC - ~ 1,5 A at sidereal speed ~ 4 A at maximum speed ~ 5 A peak |
| Includes Autoguide Port | Yes |
| Periodic Error Correction | Yes |
| Operating Temperature | - 15° C to + 35° C |
| Storage Temperature | - 40° C to + 50° C |
| In The Box |
|
- GM 4000 HPS II Mount with built-in precision absolute encoders
- control box with onboard-intelligence (Linux-processor),V. 2
- HPS version firmware, stand alone system ( no PC required ), professional handcontrol unit with graphic display and temperature control – 10M5030
- cables
- counterweight shaft
- WiFi option included.











