Pneumatic Pipeline Internal Line-Up Clamp PPLUC (φ406-1420mm) | Qianshan, Shanghai, China

The PPLUC series is a range of pneumatic internal line-up clamps for pipeline construction. An internal line-up clamp sits inside the pipe at the joint and holds the two pipe ends in alignment so they can be welded, which matters most on large-diameter pipe where the ends can distort or sit out of round.

Qianshan makes ten sizes, from the PPLUC-18A for φ406 to 457mm pipe up to the PPLUC-56A for φ1320 to 1420mm pipe. The clamps are motor-driven, and each has a braking system. Smaller sizes (18A to 36A) use a single drive wheel and single brake on one side, while larger sizes (40A to 56A) use two drive wheels on one side and double brakes on three sides.

Qianshan lists this clamp with its pipeline construction equipment, alongside a pipeline end beveling machine and an orbital automatic pipeline welding machine, so all three can be sourced as a set for pipeline work.

Why Choose a Dedicated Internal Line-Up Clamp?

Pipeline joints are welded end to end, and misalignment between the pipe ends leads to weld defects and rework. An internal clamp holds the ends true from the inside, leaving the outside clear for the welding equipment.

• Ten sizes. Covers pipe from φ406mm to φ1420mm in ten steps, so the clamp can be matched closely to pipe diameter.
• High capacity. Support force reaches up to 650 tonnes on the largest sizes.
• Motor-driven. Motorised drive wheels and brakes are built in.
• Scaled braking. Larger sizes get more wheels and additional brakes for control.
• Complete pipeline set. Sits alongside Qianshan's pipeline beveling and orbital welding machines.

Machine Specifications

The series has ten models. Each is listed as pipe diameter range, press amount, support force, overall size, and weight, exactly as stated by Qianshan.

• PPLUC-18A: pipe φ406 to 457mm; press amount 10×2; support force 8.5T; size φ360 × 1,800mm; weight 290kg
• PPLUC-22A: pipe φ508 to 559mm; press amount 10×2; support force 150T; size φ470 × 2,200mm; weight 430kg
• PPLUC-26A: pipe φ610 to 660mm; press amount 12×2; support force 183T; size φ550 × 2,700mm; weight 550kg
• PPLUC-32A: pipe φ711 to 813mm; press amount 12×2; support force 270T; size φ650 × 2,900mm; weight 700kg
• PPLUC-36A: pipe φ813 to 914mm; press amount 12×2; support force 270T; size φ750 × 2,900mm; weight 860kg
• PPLUC-40A: pipe φ914 to 1016mm; press amount 18×2; support force 450T; size φ815 × 3,100mm; weight 1,100kg
• PPLUC-44A: pipe φ1067 to 1118mm; press amount 12×2; support force 270T; size φ1000 × 3,700mm; weight 1,500kg
• PPLUC-48A: pipe φ1168 to 1219mm; press amount 24×2; support force 650T; size φ1100 × 4,100mm; weight 1,800kg
• PPLUC-52A: pipe φ1219 to 1320mm; press amount 24×2; support force 650T; size φ1170 × 4,200mm; weight 2,100kg
• PPLUC-56A: pipe φ1320 to 1420mm; press amount 30×2; support force 650T; size φ1270 × 4,200mm; weight 2,200kg

Drive and braking (all sizes)

• Driving system: motor driven
• 18A to 36A: single side, single wheel; single side, single brake
• 40A to 56A: single side, two wheels; three sides, double brakes

Condition Available: New

Key Features

• Ten sizes covering φ406 to φ1420mm pipe
• Pneumatic operation with motor-driven wheels
• Braking system scaled to clamp size
• Support force up to 650 tonnes on the largest models
• Part of a matched pipeline set with Qianshan's beveling and orbital welding machines

Applications

• Aligning pipe ends for welding in pipeline construction
• Large-diameter pipeline joint fit-up
• Use with orbital pipeline welding machines

Who This Machine Is For

• Pipeline construction contractors
• Fabricators welding large-diameter pipe
• Companies equipping a pipeline welding spread with matched tools

Frequently Asked Questions

What does an internal line-up clamp do?
It sits inside the pipe at the joint and holds the two pipe ends in alignment while they are welded.

What sizes are available?
Ten models from the PPLUC-18A (φ406 to 457mm pipe) to the PPLUC-56A (φ1320 to 1420mm pipe).

How do I choose a model?
Match the model to your pipe outside diameter using the ranges above. Kingtech-style custom sizes aren't listed, so contact the supplier for pipe outside these ranges.

Is it motor-driven?
Yes. All sizes are motor driven, with one drive wheel (18A to 36A) or two drive wheels (40A to 56A), and braking on each.

How heavy are they?
From 290kg (18A) up to 2,200kg (56A).

What else does Qianshan offer for pipeline work?
A pipeline end beveling machine and an orbital automatic pipeline welding machine (FCAW/GMAW), both of which pair with this clamp.

Is financing or staged payment available?
Yes. A deposit secures your order and begins production, with the remaining balance due only once your machine has been built, inspected, and is ready to ship.

Should I buy new or used?
These clamps are available new, built to order.