ZWO AM7 Harmonic Equatorial Mount

Why Choose the AM7 Harmonic Equatorial Mount？

1. High capacity, two ways

Carries up to 20 kg with no counterweight. Up to 30 kg with a counterweight.

2.Precision you can verify

Periodic error is controlled within plus or minus 10 arcseconds, and every mount includes its own measured PE test report.

3.Cleaner setup, less mess

Built in USB C and DC power ports on the dovetail saddle help keep cables organized.

4.Two modes, one mount

Equatorial mode for tracking and imaging. Alt-azimuth mode for visual observing.

5.Works anywhere on Earth

Zero to 90 degrees altitude range means it can be used at any latitude worldwide.

6.Control the way you like

Bluetooth, Wi Fi, or the included hand controller.

7.Ready for cold nights

Rated down to minus 20 C.

8.A control system built for reliability

ZWO’s in house control system is designed for stable, dependable operation.

9.Portable by design

Despite its capacity, the mount weighs about 6.5 kg.

10.Backed by support and a global community

ZWO mounts are widely used by astrophotographers worldwide, with a strong user community and support network.

AM7, More Capacity,More Precision.

The AM7 is ZWO’s highest-capacity harmonic drive telescope mount. It is built with heavier imaging rigs in mind, such as telescopes with long focal lengths, where tracking accuracy matters most.

Load Capacity

The AM7 supports up to 20 kg without counterweights, and up to 30 kg with counterweights installed. That gives you room to run a serious setup now and still scale up later.

Tracking and GoTo

The goal is simple. Solid tracking and reliable GoTo under real payload, so you spend less time managing limits and more time imaging and exploring the night sky.

A Mount for the Long Haul

The AM7 handles both small and heavy setups, so you can grow into bigger telescopes without outgrowing your mount.

*Weights are manually measured and may vary slightly.

Professional Grade Precision With a Custom Harmonic Drive Mount

Built out of years of ZWO development and tuned for astrophotography, the AM7’s custom harmonic drive is designed for smooth, stable tracking with strong torque and consistent performance.

Every AM7 is individually tested before it ships. You get a unique periodic error curve report for your mount, so you can see the measured tracking performance of the exact unit you own.

Key specs and testing

Custom harmonic drive system

Total harmonic gear reduction ratio 300 to 1

Individual periodic error test report included

Periodic error controlled within plus or minus 10 arcseconds for dependable high precision tracking. (That’s the thickness of a human hair viewed from about 20 meters away).

Integrated USB C and DC Power Ports

At only 6.75 kg, the AM7 is designed to be easy to carry and quick to set up. The built in dovetail plate includes a USB C port and DC power outlets, so you can route power and data through the mount instead of running a mess of cables around it. The result is cleaner cable routing and far less of the usual cable spider web.

For mount adjustments when needed, the AM7 also includes a magnetic hex wrench that stores directly on the mount body, so it stays close at hand and does not get lost in the dark.