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Internal Pneumatic Line-up Clamp (Pull-Type)

Internal Pneumatic Line-up Clamp (Pull-Type)

PROLINE manufactures and supplies a variety of Line Up Clamps. Our clamps ensure accurate alignment of two joints of pipe and are quick and easy to adjust for different pipe wall thickness. All PROLINE clamps have proven themselves in thousands of miles of pipeline construction even under the most extreme field conditions.


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The PROLINE non-driven Pneumatic Internal Line Up Clamp is a pull type suitable for use in welding small diameter steel pipe from 6" – 16" (18.3mm – 406.4 mm). Features: Air reservoir tank. Two double acting cylinders. Independent front and rear line up heads. 40 feet of reach rod and control ends. Operation and maintenance manuals.

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PROLINE Pneumatic Internal Line Up Clamps assure a rapid, accurate alignment of two joints of pipe during the welding operation. Front and rear expander sections operate independently to lock the clamp into position. Specially designed shoes on each expander section exert pressure uniformly around the inside circumference of the pipe to maintain necessary alignment. Each Lineup Clamp is quickly and easily adjusted for different pipe wall thickness. PROLINE clamps have been proven in thousands of miles of pipeline construction, under the most extreme field conditions.

The PROLINE non-driven Internal Pneumatic Line Up Clamp is a pull type suitable for use in welding small diameter steel pipe from 8″ – 18″ (203.2 mm – 457 mm). Features: Air reservoir tank. Two double acting cylinders. Independent front and rear line up expander sections. 40 feet of reach rod and control ends. Operation and maintenance manuals.

* Extra lengths of reach rod available*

8-10 INCH AIR CLAMP

  • PIPE SIZE: 8–10 in. (203 – 273 mm)
  • WALL THICKNESS: 0.125- 0.500 in. (3.2 – 12.7 mm)
  • LENGTH: 45 in. (1,143 mm)
  • WIDTH: 8 in. (203 mm)
  • HEIGHT: 8 in. (203 mm)
  • WEIGHT: 150 lbs. (68 kg)
  • AIR PRESSURE: 150-180 psi. (10.3-12.4 bar)
    8-10 Clamp

    8-10 Clamp

12-14 INCH AIR CLAMP

  • PIPE SIZE: 12–14 in. (324 – 356 mm)
  • WALL THICKNESS: 0.125- 0.594 in. (3.2 – 15.1 mm)
  • LENGTH: 61 in. (1,549 mm)
  • WIDTH: 12 in. (305 mm)
  • HEIGHT: 12 in. (305 mm)
  • WEIGHT: 240 lbs. (109 kg)
  • AIR PRESSURE: 150-180 psi. (10.3-12.4 bar)

    12-14 Clamp

10-12 INCH AIR CLAMP

  • PIPE SIZE: 10–12 in. (254 – 324 mm)
  • WALL THICKNESS: 0.125- 0.594 in. (3.2 – 15.1 mm)
  • LENGTH: 61 in. (1,549 mm)
  • WIDTH: 10 in. (254 mm)
  • HEIGHT: 10 in. (254 mm)
  • WEIGHT: 190 lbs. (86 kg)
  • AIR PRESSURE: 150-180 psi. (10.3-12.4 bar)

    10-12 Clamp

16-18 INCH AIR CLAMP

  • PIPE SIZE: 16–18 in. (406 – 457 mm)
  • WALL THICKNESS: 0.125- 0.750 in. (3.2 – 19 mm)
  • LENGTH: 80 in. (2,032 mm)
  • WIDTH: 16 in. (406 mm)
  • HEIGHT: 16 in. (406 mm)
  • WEIGHT: 430 lbs. (195 kg)
  • AIR PRESSURE: 180-200 psi. (12.4-13.8 bar)

    16 18 clamp

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