SBCM Split-Frame Clamshell

SBCM Split-Frame Clamshell

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Customized solutions

Get the solution to your complex machining application designed and built to your needs. Our custom engineering team can help you find solutions to the toughest portable machining and welding problems.

Custom Engineering Solution

Read about how we provided a custom solution for the New York Power Authority.

Our Process

Learn about our process for designing and manufacturing your custom solution on our blog.


The Heavy Duty SBCM Series of low profile clamshells are split-frame lathes that produce rapid, reliable severing and beveling of in-line tube and pipe. Smaller lathes have the ability to split in two for mounting on either side of in-line 1/8″ pipe to 4″ tube in order to perform precision severing and/or beveling. SBCM Series machines offer secure collet type clamping that not only provides self-centering but also prevents distortion or damage from clamping forces with full support on Schedule 5-10 pipe or tube. SBCM’s can be configured for clean-room use (No Lead) and are protected by tough Nickel plating that makes them easy to clean and decontaminate. SBCM’s require short perch length for operation and are sized to cover a wide range of cutting applications. Bits can be specified to provide optimal cutting results on specific materials.

  • Pneumatic
  • Precise in-line cutting
  • Compact design – Perfect for low-clearance operating spaces
  • Collet mounting – Secure and won’t deform thin wall pipe and tube
  • Flexible drive shaft – Bayonet mount
  • The perfect solution for field tie-ins
  • Tools contain no lead, brass or copper
  • Sever and bevel
  • Preparation on carbon steel, low alloy, chrome, chrome/molly, stainless, inconel, copper, aluminum and copper nickel

Tri Tool Clamshells produce superior results, able to deliver exacting diameter and surface tolerances within thousandths of an inch, making them ideal for use with advanced orbital welding systems.

Clamshells can simplify the processes of cutting to length and weld end preparation by performing both operations simultaneously.

Easy to setup and operate, Tri Tool 600 Series Clamshells offer reduced labor and time requirements for pipe and component replacement, the perfect solution for plant maintenance where downtime is a critical economic issue.

Our unique Clamshell bit designs allow for optimal machining speed and feed rates. A simple, reliable feed control system provides the flexibility to perfectly match the cut depth for any material.

Designed specifically to operate in areas of tight clearances, these machines provide features that permit them to machine pipe in a wide range of situations where no other equipment can be used.

Clamshells are cold cutting and can be used in controlled environments where flame cutters are unacceptable.

Clamshells can be operated by remote control, making them perfectly suited for machining operations in nuclear, explosive, toxic, underwater and other hazardous environments.

Tool blocks are heat-treated for durability and parts that could be damaged, such as gears, pins, and bearings, are protected to reduce the chance of accidental damage.

Our clamshells do not have moving gears that protrude to provide increased operator safety.

Don’t forget the bits! Shop for bits on our webstore.

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