OAK Size Machine (SM)
Size Return Bend Legs

This machine is designed to properly size return bend leg ends. A hydraulically powered mechanism provides the necessary force for the operation which can include expansion or reduction of the leg ends. Return bends are automatically loaded into the work area from a rotary hopper to allow continuous operation. 

Machine Facts

Machine Specifications


  • 60 cycles per minute max
         60 1/4" - 3/8"
         50 1/2"
         40 5/8"


    ≈ 3.94' x 4.92' x 7.88'
    ≈ (1.2 m x 1.5 m x 2.4 m)
    ≈ 2,000 Ibs (907 kg)


    2 ft 3/min at 80 psi
    (0.3 m 3/min at 5.5 bar)


  • 8 kW @ .80/.82 PF

  • 24 VCD Controls

    **Foundation information supplied upon request.


  • 1/4 dia - 5/8' dia
  • Copper or Aluminum
  • Return Bends or Crossover Bends



  • Less expensive than a combination size and ring machine - perfect for applications where a ring is unnecessary. 

  • Adjustments are mechanical to avoid the unnecessary expense of additional technology.


  • SM is able to size return bends and crossovers, as well as heavy wall tubing.

  • Size Machine can reduce or expand bend legs.
  • Hydraulic powered when more force is required. 


  • Gravity-fed from rotary hoppers for easy delivery of return bends into the Size Machine.

Materials & Media

Capital Sales

To request a quote or learn more about BOTI's Size Machine visit our capital sales page.

Go to Capital Sales

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