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Internal Pneumatic Lineup Clamp (Self-Propelled)

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 Pneumatic Internal Line Up Clamp is suitable for use in welding a wide range of pipe diameters from 16" - 60" (406.4 mm – 1524 mm) steel pipe and feature a powered forward and reverse. Features: Forward / reverse travel motor. Air reservoir tank. Two double acting air cylinders to propel clamp a double joint distance. Independent front and rear line up heads. 40 feet of reach rod and control ends. Operation and maintenance manuals. Options: PROLINE Conversion kit available to quickly adjust clamp for different size pipe.

The Proline Internal Pneumatic Line Up Clamp is suitable for use in welding a wide range of pipe diameters from 16″ – 60″ (406.4 mm – 1524 mm) steel pipe and feature a powered forward and reverse. Features: Forward / reverse travel motor. Air reservoir tank. Pneumatic air drive motors propel clamps a double joint distance. Independent front and rear line up expander sections. 40 feet of reach rod and control ends. Operation and maintenance manuals.

Options: Proline Conversion kit available to quickly adjust clamp for different size pipe.

*Extra spare parts are available to aid in preventative maintenance and repairs of pneumatic air clamps*

16-18 INCH AIR CLAMP

  • PIPE SIZE: 16–18 in. (406.4 – 457.2 mm)
  • Wall Thickness: 0.125- 0.750 in.: (3.2 – 19 mm)
  • LENGTH: 113 in. (2286 MM)
  • WIDTH: 16 in. (406 mm)
  • HEIGHT: 16 in. (406 mm)
  • WEIGHT: 550 lbs. (250 kg)

    16-18 Clamp Spec 2

24-26 INCH AIR CLAMP

  • PIPE SIZE: 24-26 (609.6 – 660.4 mm)
  • Wall Thickness: 0.188-0.875 in.: (4.8-22.6 mm)
  • LENGTH: 124 in. (3150 mm)
  • WIDTH: 24 in. (610 mm)
  • HEIGHT: 24 in. (610 mm)
  • WEIGHT: 1175 lbs. (533 kg)
  • AIR PRESSURE: 180-200 LB/IN. (12.4-13.8 bar)
  • SIDE DRIVE with DRAG BRAKES

24-26 Clamp Spec 1

34-36 INCH AIR CLAMP

  • PIPE SIZE: 34-36 (863.6 – 914.4.8 mm)
  • Wall Thickness: 0.188-0.875 in.: (4.8-22.6 mm)
  • LENGTH: 130 in. (3302 mm)
  • WIDTH: 34 in. (864 mm)
  • HEIGHT: 34 in. (864 mm)
  • WEIGHT: 2025 lbs. (919 kg)
  • DUAL AIR MOTORS
  • SIDE DRIVE with DRAG BRAKES

34-36 Clamp Spec 2

42-44 INCH AIR CLAMP

  • PIPE SIZE: 42-44 (1066.8-1117.6 mm)
  • Wall Thickness: 0.250- 0.938 in.: (6.4-23.8 mm)
  • LENGTH: 140 in. (3556 mm)
  • WIDTH: 42 in. (1016 mm)
  • HEIGHT: 42 in. (1016 mm)
  • WEIGHT: 3075 lbs. (1396 kg)
  • DUAL AIR MOTORS
  • SIDE DRIVE with SIDE DRAG BRAKES

42-44 Clamp Spec 2

52-54 INCH AIR CLAMP

  • PIPE SIZE: 52-54 (1320.8-1371.6.2 mm)
  • Wall Thick on 52: 0.312- 1.00 in.:(6.4-25.4 mm)
  • Wall Thick on 54: 0.312- 2.00 in.:(6.4-50.8 mm)
  • LENGTH: 160 in. (4064 mm)
  • WIDTH: 52 in. (1321 mm)
  • HEIGHT: 52 in. (1321 mm)
  • WEIGHT: 4350 lbs. (1975 kg)
  • DUAL AIR MOTORS
  • SIDE DRIVE with SIDE DRAG BRAKES

52-54 Clamp Spec 3

58-60 INCH AIR CLAMP

  • PIPE SIZE: 58-60 (1473.2-1524 mm)
  • Wall Thick on 58: 0.312- 1.00 in.:(6.4-25.4 mm)
  • Wall Thick on 60: 0.312- 2.00 in.:(6.4-50.8 mm)
  • LENGTH: 180 in. (4572 mm)
  • WIDTH: 58 in. (1473 mm)
  • HEIGHT: 58 in. (1473 mm)
  • WEIGHT: 7250 lbs. (2928 kg)
  • SIDE DRIVE with SIDE DRAG BRAKES

58-60 Clamp Spec 1

 20-22 INCH AIR CLAMP

  • PIPE SIZE: 20-22 (508 – 558.8 mm)
  • Wall Thickness: 0.125-0.750 in.: (3.2 – 19 mm)
  • LENGTH: 118 in. (2997 MM)
  • WIDTH: 20 in. (406 mm)
  • HEIGHT: 20 in. (406 mm)
  • WEIGHT: 860 lbs. (390 kg)

    20-22 Clamp Spec 1

30-32 INCH AIR CLAMP

  • PIPE SIZE: 30-32 (762 – 812.8 mm)
  • Wall Thickness: 0.188-0.875 in.: (4.8-22.6 mm)
  • LENGTH: 125 in. (3175 mm)
  • WIDTH: 30 in. (762 mm)
  • HEIGHT: 30 in. (762 mm)
  • WEIGHT: 1520 lbs. (690 kg)
  • AIR PRESSURE: 180-200 LB/IN. (12.4-13.8 bar)
  • SIDE DRIVE with DRAG BRAKES

30-32 Clamp Spec 2

40-42 INCH AIR CLAMP

  • PIPE SIZE: 40-42 (1016 – 1066.8 mm)
  • Wall Thickness: 0.250-0.938 in.: (6.4-23.8 mm)
  • LENGTH: 140 in. (3556 mm)
  • WIDTH: 40 in. (1016 mm)
  • HEIGHT: 40 in. (1016 mm)
  • WEIGHT: 2800 lbs. (1271 kg)
  • DUAL AIR MOTORS
  • SIDE DRIVE with SIDE DRAG BRAKES

40-42 Clamp Spec 2

46-48 INCH AIR CLAMP

  • PIPE SIZE: 46-48 (1168.4-1219.2 mm)
  • Wall Thick on 46: 0.312- 1.00 in.:(6.4-25.4 mm)
  • Wall Thick on 48: 0.312- 2.00 in.:(6.4-50.8 mm)
  • LENGTH: 148 in. (3759 mm)
  • WIDTH: 46 in. (1219 mm)
  • HEIGHT: 46 in. (1219 mm)
  • WEIGHT: 3750 lbs. (1703 kg)
  • DUAL AIR MOTORS
  • SIDE DRIVE with SIDE DRAG BRAKES

46-48 Clamp Spec 1

54-56 INCH AIR CLAMP

  • PIPE SIZE: 54-56 (1371.6 -1422.4 mm)
  • Wall Thick on 54: 0.312- 1.00 in.:(6.4-25.4 mm)
  • Wall Thick on 56: 0.312- 2.00 in.:(6.4-50.8 mm)
  • LENGTH: 180 in. (4572 mm)
  • WIDTH: 54 in. (1372 mm)
  • HEIGHT: 54 in. (1372 mm)
  • WEIGHT: 6450 lbs. (2928 kg)
  • SIDE DRIVE with SIDE DRAG BRAKES

54-56 Clamp Spec 1