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Lightweight Hobym CRUX 320HD Long Harmonic Drive German Equatorial Mount With Titan TCS GoTo System

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The CRUX 320HD Long Body is the same mount as the 320HD with the exception of a 15cm (6") longer RA arm.  With the longer arm you can mount bulkier payloads, and image further past the meridian.  It's incredibly light for its payload capacity, weighing only 25 kg (55 lbs) without counterweights and yet is able to carry payloads of 23 kg (51 lbs).  It can carry 60 kg (132 lbs) of equipment with optional counterweights with extremely accurate tracking.  This gives the CRUX 320HD the best weight to capacity ratio of any mount in its class.

The harmonic drive is the key to the performance of this special mount - the harmonic drive gears exert 10 times the normal friction and cover 10 times the gear surface contact area, allowing for much larger loads than traditional mounts. This ensures lower costs and much greater freedom in transporting the mount to remote locations - You can easily travel with it in your checked-in air travel luggage or even take it as carry-on. The harmonic gears are rated to last more than 100 years with near-continuous use, and are unaffected by temperature changes.

The 320HD offers excellent tracking performance due to its zero-backlash design.  It utilizes the P-motion PEC system to control cycle errors in the gears. This can minimizes the tracking error to less that ±3 arc seconds. This enables feats like taking a 20 minute exposure using a medium sized refractor without using any guiding system.

The CRUX 320HD comes equipped with a very advanced telescope control system - the TiTaN TCS (Telescope Control System). It's very easy to use and flexible system, working with or without a computer. The TiTaN TCS controller supports advanced wireless environments as well as a connection via serial or USB.

The mount uses Takahashi Style 35mm Spacing for the telescope connection.  Inexpensive Losmandy-Takahashi adapters will covert it to use a Losmandy saddle.

All Crux mounts come with a hard-shell carrying case.

The included counterweight bar utilizes standard 25mm (.98") counterweights.

Telescopes Canada is proud to be the exclusive Canadian distributor of Hobym CRUX Harmonic Drive mounts.

Note: This item requires 2 to 6 weeks for delivery

Mount Comparison Chart

  Model  CRUX 320HD/320HD LONG  CRUX 200HD  CRUX 170HD


Computerized Yes - Titan-TCS Yes - Titan-TCS Yes - Titan-TCS Yes - Titan-TCS
Drive Type Harmonic Drive Harmonic Drive Harmonic Drive Harmonic Drive
Head Design German Equatorial German Equatorial German Equatorial German Equatorial
Instrument Capacity 132 lbs 88 lbs 53 lbs 22.0462 lbs
Mount Head Weight 25 kg / 55 lbs 13 kg / 28.6 lbs 4.9 kg / 10.8 lbs 2.5 kg / 5.5 lbs
PEC Yes Yes Yes Yes
Ports Micro USB Type B Micro USB Type B Micro USB Type B Micro USB Type B
Ports RJ12 RJ12 RJ12 RJ12
Ports RS232 RS232 RS232 RS232
Ports USB Type A USB Type A USB Type A USB Type A
Power Consumption 12V 2A 12V 2A 12V 2A 12V 2A
Slew Speed 600x Sidereal 800x Sidereal 1000x Sidereal 2000x Sidereal
Telescope Connection Takahashi Style 35mm Spacing Takahashi Style 35mm Spacing Takahashi Style 35mm Spacing Arca Swiss
Weight Capacity 60 kg / 132 lbs 40 kg / 88.2 lbs. 24 kg / 52.9 lbs. 10 kg / 22 lbs.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

Items that have been opened, damaged or are otherwise unsaleable will be subject to a minimum 10% restocking fee, to be assessed by Telescopes Canada upon receipt of the returned goods

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Typographical Errors and Order Cancellations

Telescopes Canada reserves the right to cancel an order due to an error in pricing by Telescopes Canada or one of our suppliers, equipment being no longer obtainable, or other events which are out of our control.

Client-Initiated Cancellations

Client-initiated order cancellations are accepted prior to delivery of the equipment to the customer, thereafter it is a return.

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