Affordable. Rugged. Dependable.

Our SD400 Valve Exerciser with vertical and horizontal articulation is the most affordable and versatile valve exerciser available. Maintain your valve and hydrant inventory with no operator fatigue or injury. Simple slip the SD400 into any standard hitch receiver and you’re off and working.


Most Economical Boom Available

Handles almost any valve in any situation at an unbeatable price.

Simple to Use

Insert the valve key. Move the head to connect. Pull a lever.

Versatile Mounting 

Easily mounts to any standard hitch receiver – trucks, ATVs, trailers, vacuum units – locks into any standard receiver and is ready to go.

Substantial RPM for the Job

From 0-60 RPM.

Easily Reach Valves

0′ to 13′ range with the Extended Reach, 0′ to 9′ on its own. Access numerous valves in close range in one stop.

Unmatchable Vertical Range

4′ below the surface to 7′ above. Easily reach valves and hydrants on hills or in valleys or ditches.

Virtually Eliminates Worker Injury and Fatigue

The boom absorbs all of the torque, not the worker.

Hands on Operation

Allows for the worker to feel the valve. They can feel the condition of the valve and can make a logical decision on the correct move to prevent damage to the valve.

Multiple Mounting Configurations

The boom easily slides into a front or rear hitch receiver of any light duty vehicle. This includes small trucks, ATVs, utility trucks etc. We also offer a small trailer to contain all of your valve exercising necessities in one convenient location. For a complete system, we offer a vacuum so you can have easy access to everything you’ll need to maintain and test your valves and hydrants.

Lifetime Boom Warranty

Hurco Guarantees for life, damage to the Spin Doctor booms that are caused by torque while valve and hydrant exercising. In the unlikely event that this was to ever happen, Hurco will replace any boom, at no charge, (labor not included). This is the exclusive remedy and no other warranties are implied.

Literature – SD Comparison

Literature – Complete Line


Florida Flow Control

Our experience with the Spin Doctor 800 Chrome Moly has been very positive and has allowed us to gain an advantage over out competition based on the information generated and ease of use. Our production rate has been steady and predictable, allowing us to accurately price and maintain profitable work; which is 100% dependent on the reliability of the equipment. HURCO has great customer and technical support and we have always been able to obtain answers to our questions within minutes. The decision between various manufacturers of valve exercise equipment became obvious once we gave it a shot.

-Felipe Lofaso [SD400 mounted on an ATV using their own power source]