‘The autonomy of the control system is a big game-changer. It allows the operator to set the machine up, step back to a safe distance, and operate the timing of the slides and the automatic trip. Operating a clamshell has never been easier.’ – Paul Burden, VP of Sales and Marketing UK.

At CLIMAX, our priority is to design tools that improve user performance and mitigate against safety hazards when using rotating equipment like Clamshell (split-frame) pipe cutting and beveling tools! That is why H&S TOOL invented the DEFENDER™ ‘Hands-Free’ Protection System. This protection system safeguards operators with the DEFENDER™ Guards, Adjustable Shark Fin™, Low-Pressure Safety Interlock System, E-Stop, and remote controls designed to maximize performance while keeping users away from rotating parts and equipment.

The H&S TOOL Clamshell pipe cutting and beveling machines are available for purchase or rent. For more information contact your sales representative at +1-503-538-2185 or visit our website at

State of the Art in Pressure Relief Valve Testing - See it LIVE!

40 years ago, CALDER began manufacturing Valve Testers because founder, John Emmitte, realized that companies were not testing valves properly.  Now there’s a new lineup of state-of-the-art pressure relief valve testers that will once again raise the bar with unrivaled performance and ease of use.

Be the first to see it in action on July 13,  2022, at 7:00 am Pacific and 10:00 am Eastern.