INTERNAL LINE-UP SOLUTIONS

Pneumatic Internal Pipe Clamp

Internal Alignment for Mainline Welding (10\" - 60\")

For high-production mainline pipeline construction, Technical Pipeline's Pneumatic Internal Pipe Clamp delivers rapid, repeatable internal alignment without slowing down the welding spread. Powered entirely by compressed air, the clamp expands against the internal pipe wall to bring both sections into true concentric alignment before the root pass.

Umbrella-Opener Radial Shoes
6 to 30 Expanding Shoes
10" to 60" (273-1524 mm)
Zero External Obstruction
PNEUMATIC POWER RAPID EXPANSION 10" TO 60" CONCENTRIC ALIGNMENT

Umbrella Radial Actuation

Synchronized shoe expansion delivers uniform internal circular pressure

Out-of-Round Correction

Forces pipe ends back into true concentric roundness prior to tacking

High-Speed Spread Cycle

Pneumatic fast expand & retract keeps pace with mechanized welding

TRUSTED IN PIPELINE INDUSTRIES WORLDWIDE
CROSS-COUNTRY TRANSMISSION
GAS & OIL PIPELINES
AUTOMATED ORBITAL WELDING
LARGE DIAMETER UTILITIES
INTERNAL LINE-UP CLAMPS

Pneumatic Internal Pipe Clamp (10" - 60")

Compressed-air powered internal clamp with umbrella-opener expanding shoes for rapid, concentric mainline joint line-up.

Clamping Range 1" – 16" (33.4 – 406.4 mm)
Recommended Wall Thickness & Schedules 1 – 15 mm | Schedule 10 to Schedule 80
Body Material & Contact Points High-strength alloy / carbon steel (Optional SS contact points)
Operation & Typical Use Manual, trapezoidal screw-adjustable | Shop & field tack welding

INTERNAL ALIGNMENT FOR HIGH-PRODUCTION SPREADS

For high-production mainline pipeline construction, Technical Pipeline's Pneumatic Internal Pipe Clamp delivers rapid, repeatable internal alignment without slowing down the welding spread. Powered entirely by compressed air, the clamp expands against the internal pipe wall to bring both sections into true concentric alignment before the root pass. An "umbrella opener" mechanism drives a set of radially expanding clamping shoes evenly around the internal circumference, forcing out-of-round pipe ends back into true roundness. The number of shoes scales with model size — from 6 shoes on the smallest models up to 30 on the largest — keeping internal pressure evenly distributed regardless of diameter. The range is available in standard models covering 10" to 60" (273-1524 mm), with recommended wall thickness scaling from 5-12.7 mm on the smallest models up to 9.5-19 mm on the largest.

Technical Specifications

Clamping Range10" - 60" (273 - 1524 mm)
Recommended Wall Thickness5 - 19 mm, scaling with model size
OperationPneumatic (compressed air, 6 - 10 Bar)
Actuation MechanismUmbrella opener, radially expanding shoes
Clamping Shoes6 to 30 shoes, scaling with model size
Contact Shoe OptionsHardened carbon steel or copper backing shoes
Typical UseHigh-production mainline pipeline welding, automated GMAW

ENGINEERED FOR MAINLINE SPREADS

Delivering uniform internal expansion, zero root obstruction, and high spread production speed.

RADIAL EXPANSION

UMBRELLA-OPENER ACTUATION

Umbrella-opener mechanism expands clamping shoes evenly around the internal circumference.

6 TO 30 SHOES

SCALED SHOE ARCHITECTURE

Shoe count scales with model size (6 to 30) for uniform internal pressure at every diameter.

FULL COVERAGE

10" TO 60" STANDARD RANGE

Standard models form a continuous size ladder from 10" up to 60" (273–1524 mm).

5 TO 19 MM

SCALED WALL THICKNESS

Recommended wall thickness scales with model size, from 5-12.7 mm up to 9.5-19 mm.

CONCENTRIC FIT

OUT-OF-ROUND RE-ROUNDING

Corrects out-of-round pipe ends while achieving perfect coaxial and concentric alignment.

ZERO OBSTRUCTION

100% EXTERNAL CLEARANCE

Leaves external pipe seam totally open for high-speed mechanized orbital welding bugs.

Pneumatic - Internal - Pipe - Clamp
Model Type Pipe size mm. Pipe size inch Force type Actuation Type Force shape Recommended Wall Thickness Schedule 40 Kg Request
Quote
THCP 0301 10 Ø 273 10" Pneumatic Umbrella (6 Shoes) Trapezoidal Screw 5 5 - 12.7 mm -
THCP 0301 12 Ø 323.9 12" Pneumatic Umbrella (6 Shoes) Trapezoidal Screw 5 6 - 19 mm -
THCP 0301 1214 Ø 323.9 - Ø 355.6 12" - 14" Pneumatic Umbrella (6 Shoes) Trapezoidal Screw 5 6 - 19 mm -
THCP 0301 14 Ø 355.7 14" Pneumatic Umbrella (6 Shoes) Trapezoidal Screw 5 6 - 19 mm -
THCP 0301 16 Ø 406.5 16" Pneumatic Umbrella (8 Shoes) Trapezoidal Screw 5 6 - 19 mm -
THCP 0301 1618 Ø 406.4 - Ø 457.2 16" - 18" Pneumatic Umbrella (8 Shoes) Trapezoidal Screw 5 6 - 19 mm -
THCP 0301 18 Ø 457.2 18" Pneumatic Umbrella (8 Shoes) Trapezoidal Screw 5 6 - 19 mm -
THCP 0301 20 Ø 508 20" Pneumatic Umbrella (10 Shoes) Trapezoidal Screw 5 6 - 19 mm -
THCP 0301 2022 Ø 508 - Ø 558.8 20" - 22" Pneumatic Umbrella (10 Shoes) Trapezoidal Screw 5 8 - 19 mm -
THCP 0301 22 Ø 558.8 22" Pneumatic Umbrella (10 Shoes) Trapezoidal Screw 5 8 - 19 mm -
THCP 0301 24 Ø 609.6 24" Pneumatic Umbrella (12 Shoes) Trapezoidal Screw 5 8 - 19 mm -
THCP 0301 2426 Ø 609.6 - Ø 660.4 24" - 26" Pneumatic Umbrella (12 Shoes) Trapezoidal Screw 5 8 - 19 mm -
THCP 0301 26 Ø 660.4 26" Pneumatic Umbrella (12 Shoes) Trapezoidal Screw 5 8 - 19 mm -
THCP 0301 2830 Ø 711.6 - Ø 762 28" - 30" Pneumatic Umbrella (16 Shoes) Trapezoidal Screw 5 8 - 19 mm -
THCP 0301 30 Ø 762 30" Pneumatic Umbrella (16 Shoes) Trapezoidal Screw 5 8 - 19 mm -
THCP 0301 3032 Ø 762 - Ø 812.8 30" - 32" Pneumatic Umbrella (16 Shoes) Trapezoidal Screw 5 8 - 19 mm -
THCP 0301 32 Ø 812.8 32" Pneumatic Umbrella (16 Shoes) Trapezoidal Screw 5 8 - 19 mm -
THCP 0301 34 Ø 863.6 34" Pneumatic Umbrella (18 Shoes) Trapezoidal Screw 5 8 - 19 mm -
THCP 0301 3436 Ø 863.6 - Ø 914.4 34" - 36" Pneumatic Umbrella (18 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 36 Ø 914.4 36" Pneumatic Umbrella (18 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 40 Ø 1016 40" Pneumatic Umbrella (24 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 4042 Ø 1016 - Ø 1067 40" - 42" Pneumatic Umbrella (24 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 42 Ø 1067 42" Pneumatic Umbrella (24 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 4244 Ø 1067 - Ø 1118 42" - 44" Pneumatic Umbrella (24 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 44 Ø 1118 44" Pneumatic Umbrella (24 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 4446 Ø 1118 - Ø 1168 44" - 46" Pneumatic Umbrella (24 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 46 Ø 1168 46" Pneumatic Umbrella (24 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 4648 Ø 1168 - Ø 1219 46" - 48" Pneumatic Umbrella (24 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 48 Ø 1219 48" Pneumatic Umbrella (24 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 50 Ø 1270 50" Pneumatic Umbrella (26 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 52 Ø 1321 52" Pneumatic Umbrella (26 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 5254 Ø 1321 - Ø 1372 52" - 54" Pneumatic Umbrella (26 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 54 Ø 1372 54" Pneumatic Umbrella (26 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 56 Ø 1422 56" Pneumatic Umbrella (26 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 5660 Ø 1422 - Ø 1524 56" - 60" Pneumatic Umbrella (26 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
THCP 0301 60 Ø 1524 60" Pneumatic Umbrella (30 Shoes) Trapezoidal Screw 5 9.5 - 19 mm -
Please contact with us for different sizes and wall thickness.

MAINLINE PRODUCTION SPREADS

Engineered for high-volume cross-country pipeline construction and mechanized orbital welding.

Cross-Country Mainline Pipeline Construction

High-speed line-up of consecutive pipe joints along extensive transmission pipeline corridors.

High-Volume, Repetitive Joint Welding on Pipeline Spreads

Fast cycle pneumatic expansion and retraction keeps pipeline firing lines advancing continuously.

Mechanized and Automatic Root Pass Welding Systems

Provides essential internal radial contact and copper backing support for automated GMAW weld heads.

Zero-Obstruction Pipe Tie-Ins

Completely eliminates external weld-zone interference, giving welding bugs 360° unobstructed track access.

OTHER INTERNAL LINE-UP CLAMPS PRODUCTS

COMPACT & PORTABLE
Hydraulic Manual Internal Pipe Clamp

Hydraulic Manual Internal Pipe Clamp

Compact Internal Alignment for Smaller Diameters (6" - 24")

VIEW RANGE →
HEAVY-WALL ALIGNMENT
Hydraulic Internal Pipe Clamp

Hydraulic Internal Pipe Clamp

Hydraulic Internal Pipe Clamp (26" - 60")

VIEW RANGE →
HYDRAULIK-KLAMMER
Internal Spider Clamp

Internal Spider Clamp

Präzisions-Rohrausrichtung am Grabenrand für Fernleitungen (36" bis 240")

VIEW RANGE →
PRECISION SERIES
Internal Mechanical Alignment Clamps

Internal Mechanical Alignment Clamps

Manual Internal Line-Up Clamps with Non-Marking Bronze Shoes for Small-Bore Tubing (15 – 64 mm)

VIEW RANGE →
INTERNAL PNEUMATIC ALIGNMENT

Accelerate Mainline Spread Alignment

Contact Technical Pipeline engineers to select the exact THCP 0301 Pneumatic Internal Clamp model and copper backing options for your pipeline spread.

Worldwide Delivery
API & ASME Compliant
2 Years Warranty
Heavy-Duty Export Packaging
Pneumatic Internal Pipe Clamp in Action
Demonstrating heavy-duty industrial pipe holding and alignment.
HD Video

Request a Commercial Quote

Submit your requested specifications for instant factory-direct pricing and lead times.

🔒 Confidential commercial inquiry. Response within 24 hours.