ZWO AM3N Strain Wave Gear Mount

BH #ZWOAM3N • MFR #ZWO AM3N
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ZWO AM3N Strain Wave Gear Mount
Key Features
  • 17.6 lb Payload, No Counterweight
  • Control via App or Hand Unit
  • Dual EQ & Alt-Az Modes
  • USB-C & Power Ports on Dovetail
Providing smooth strain wave gearing and neat cable management, the ZWO AM3N Strain Wave Gear Mount offers altazimuth operation for observation and go-to equatorial tracking via an app or a hand controller for astrophotography. The mount weighs just nine pounds but can support up to 17.6 pounds on its own or 28.7 pounds with a user-supplied counterweight and shaft. The brake system prevents the mount from toppling if the power is cut off. The mount runs on a user-supplied 12V, 3A power supply and is compatible with ASCOM and ZWO's ASIAIR platforms.
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ZWO AM3N Overview

Providing smooth strain wave gearing and neat cable management, the ZWO AM3N Strain Wave Gear Mount offers altazimuth operation for observation and go-to equatorial tracking via an app or a hand controller for astrophotography. The mount weighs just nine pounds but can support up to 17.6 pounds on its own or 28.7 pounds with a user-supplied counterweight and shaft. The brake system prevents the mount from toppling if the power is cut off. The mount runs on a user-supplied 12V, 3A power supply and is compatible with ASCOM and ZWO's ASIAIR platforms.

Lightweight, High Payload
  • Weighs 9 pounds
  • Supports 17.6 pounds without counterweight
  • Supports 28.7 pounds with optional counterweight
Strain-Wave Gear for Precision Control
  • Strain-wave gearing system comes with very low periodic errors, smooth gearing, and high torque
  • Reduction ratio is 300:1
  • Each mount is tested and shipped with a periodic error curve report
Dual AZ/EQ Modes
  • Capable of both equatorial and altazimuth modes
  • Suitable for both visual and imaging
  • Elevation angle of 0-90°
  • Can be used anywhere from the equator to the polar regions
Cable Management
Power in/out and USB-C ports are located on the dovetail to prevent the power supply and control cables from tangling
Magnetic Recess for Hex Wrench
The mount's hex wrench resides in a magnetized recess behind the left latitude lock knob and the knob design won't interfere with access to the tool.
Mode Indication
  • Red light is displayed for equatorial mount mode
  • Green light is displayed for alt-azimuth mode
  • If the mount has no synchronization, the indicator light flashes alternately red and green, and the corresponding color indicator light will be displayed according to the mode after synchronization
Joystick Handset or App Control
  • Control via the included hand controller or from your phone or tablet using the AM5 app
  • App offers onscreen joystick and convenient tools including Best Objects of the Evening and a built-in star map with real-time display and GoTo functions
  • There is no need to connect to a computer—the mount and hand controller connect via Wi-Fi
  • The mount is compatible with ASCOM, INDI, ASIAIR, and other platforms
Power-Off Braking
  • In the event of power failure, brakes are instantly applied to prevent damage to the telescope and equipment from falling

ZWO AM3N Specs

Key Specs
Mount Type
Motorized; Alt-Azimuth/German Equatorial
GoTo Capability
Yes
Payload Capacity
17.6 lb / 8 kg (without Counterweight)
28.7 lb / 13 kg (with Counterweight)
Motor
Dual Axis
Power Source
AC Adapter with Power Brick (Not Included)
Mounting
To Optical Tube Assembly: Dual Losmandy-/Vixen-Type Saddle
GPS
No
Wireless
Wi-Fi
Weight
9 lb / 4.1 kg
Mount
Mount Type
Motorized; Alt-Azimuth/German Equatorial
GoTo Capability
Yes
Payload Capacity
17.6 lb / 8 kg (without Counterweight)
28.7 lb / 13 kg (with Counterweight)
Motor
Dual Axis
Altitude Adjustment
0 to 90°
Latitude Adjustment
Polar Axis Scope
No
General
Power Source
AC Adapter with Power Brick (Not Included)
Input Power
12 VDC at 3 A
Inputs / Outputs
USB-B
Mounting
To Optical Tube Assembly: Dual Losmandy-/Vixen-Type Saddle
GPS
No
Wireless
Wi-Fi
Materials
Aluminum
Operating Conditions
-4 to 104°F / -20 to 40°C
Dimensions
7.3 x 3.5" / 185 x 90 mm
Weight
9 lb / 4.1 kg
Packaging Info
Package Weight
12.645 lb
Box Dimensions (LxWxH)
12.5 x 12.3 x 8.2"

ZWO AM3N Reviews

Great mount for portable scopes

By David
Rated 5 out of 5
Date: 2026-02-18

Solid, reliable mount with typical tracking around .5-.7 arc seconds .Good cable management.

Smooth Operator

By Henry
Rated 5 out of 5
Date: 2026-02-09

This mount slews my ZWO FF80 APO without a problem, and in concert with the ASIAIR controller, is spot on in finding stellar objects. Polar alignment takes some getting used to, but certainly works. The mount is nice and compact, and not too heavy--quite portable.

See any errors on this page?

What are the differences with the AM3?

What are the differences with the AM3?
Asked by: Yves
The ZWO AM3N Harmonic Equatorial GoTo Mount has cable snap prevention; it can operate in colder temps and it has a magnetic M6 hex wrench.
Answered by: Elliot A
Date published: 2025-09-16
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