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| Quantity: | |
|---|---|
HGDNQ6′′~80′′
WINCOO
The pipeline internal clamp machine (also known as a pipeline internal line-up clamp or pneumatic internal mouthpiece) is a specialized piece of equipment used in pipeline welding construction. It is a machine that generates radial force from within a steel pipe to align two pipe ends, ensuring they meet the precise requirements for welding.
WINCOO ENGINEERING CO., LTD, headquartered in Nanjing, Jiangsu, China, is a leading manufacturer and supplier of pipeline construction equipment. The company provides solutions and equipment for clients across various industrial fields, including pipe fabrication, tank construction, pipeline construction, industrial production lines, and clean energy projects.
The internal clamp is inserted into the pipe ends and expanded radially to align the two pipe sections concentrically. This ensures proper alignment of the weld joint, controls the misalignment gap, and maintains the correct root opening for high-quality welding. The equipment is primarily composed of a locking device and an opening/closing device-, and is available in both pneumatic and hydraulic drive configurations.
WINCOO offers two main series of internal clamps: the DKQ Series Pneumatic Internal Clamp and the HGDNQ Series Pneumatic Pipeline Internal Line-Up Clamp.
Model | Applicable Range (mm) | Piston Sets | One-Row Support Force (T/1.2MPa) | Drive Mode | Travel Speed (m/s) | Input Pressure (MPa) |
|---|---|---|---|---|---|---|
DKQ305 | 305–406 | 8×2 | 19 | Manual drag | — | 1.5 |
DKQ406 | 406–508 | 8×2 | 24 | Manual drag | — | 1.5 |
DKQ508 | 508–610 | 10×2 | 58 | Motorized | 0–1 | 1.5 |
DKQ610 | 610–711 | 12×2 | 101 | Motorized | 0–1 | 1.5 |
DKQ711 | 711–813 | 12×2 | 146 | Motorized | 0–1 | 1.5 |
DKQ813 | 813–965 | 15×2 | 183 | Motorized | 0–1 | 1.5 |
DKQ1016 | 1016–1168 | 24×2 | 361 | Motorized | 0–1 | 1.5 |
DKQ1219 | 1219–1322 | 24×2 | 361 | Motorized | 0–1 | 1.5 |
DKQ1422 | 1219–1422 | 24×2 | 361 | Motorized | 0–1 |
General Specifications:
Pipe Diameter Range: 2"–60" (approximately 305–1422 mm)
Travel Speed: 0–1 m/min
Input Pressure: 1.5 MPa
Climbing Slope Ability: Up to 30°
Model | Pipe Size (mm) | Pistons | Piston Power (KN) | Weight (kg) |
|---|---|---|---|---|
HGDNQ6" | 168 | 6×2 | 134 | 36 |
HGDNQ8" | 219 | 6×2 | 209 | 53 |
HGDNQ10" | 273 | 6×2 | 382 | 60 |
HGDNQ12-14" | 305–357 | 6×2 | 405 | 100 |
Model | Pipe Size (mm) | Pistons | Piston Power (KN) | Motor Power (Hp) | Weight (kg) |
|---|---|---|---|---|---|
HGDNQ16-18" | 406–457 | 8×2 | 959 | 1.0 | 188 |
HGDNQ20-22" | 508–559 | 10×2 | 1057 | 1.5 | 296 |
HGDNQ22-24" | 559–610 | 12×2 | 1268 | 1.5 | 390 |
HGDNQ24-26" | 610–660 | 12×2 | 1268 | 1.5 | 418 |
HGDNQ28-30" | 711–762 | 12×2 | 1748 | 1.5 | 512 |
HGDNQ30-32" | 762–813 | 14×2 | 2937 | 3.0 | 733 |
HGDNQ34-36" | 864–914 | 16×2 | 2937 | 3.0 | 779 |
HGDNQ36-38" | 914–965 | 18×2 | 2937 | 3.0 | 865 |
HGDNQ40-42" | 1016–1067 | 20×2 | 2937 | 3.0 | 982 |
HGDNQ46-48" | 1168–1219 | 20×2 | 4855 | 3.0 | 1420 |
HGDNQ48-50" | 1219–1270 | 22×2 | 4855 | 3.0 | 1876 |
WINCOO pipeline internal clamps are engineered with the following key features:
Standard no-tack model – Allows for welding without the need for tack welds, improving efficiency.
Precision-built construction – Sturdy and precise design suitable for both full-round and tack welding applications.
Adjustable clamping pressure – Accurate use of clamping bolts allows for fine-tuned pressure adjustment.
Fast and accurate alignment – Easy to operate, enabling rapid and precise pipe joint alignment.
Perfect roundness and pipe sizing – Precision-bored to maintain perfect roundness and accurate pipe sizing.
360° full-circle welding capability – Arched bar contact and wide gap bridge permit full-circle welding without clamp removal, significantly improving productivity.
Heavy-duty steel construction – Built to last with heat treatment processes and welded structure for enhanced durability.
Protected hydraulic mechanism – Hydraulic components are enclosed in a protective housing to eliminate dirt and contamination.
Clean and environmentally friendly – Powered by compressed air with zero pollution, making it suitable for environmentally sensitive projects.
High precision – Misalignment and clearance adjustment accuracy is maintained within 0.5mm, meeting pipeline construction standards.
Reliable performance – Low failure rate with flexible operation and good technical performance.
WINCOO pipeline internal clamps are widely used in the following applications:
Long-distance transmission pipeline construction – The primary application, used for joining two welded pipe ends in long transmission pipelines.
Pipe bend butt joints and angle butt joints – Suitable for connecting pipes at various angles and bends.
Oil and natural gas pipelines – Particularly suited for high environmental protection requirements in oil and gas transmission projects.
Water pipelines – Clean, pollution-free operation makes it ideal for water pipeline construction.
Offshore pipeline projects – Used for clad pipe alignment in marine environments.
Pipeline fabrication shops – Used by fabricators and EPC contractors for pipe fabrication and assembly.
Tank construction – Applicable in tank building and industrial production line projects.
Clean energy projects – Suitable for renewable energy and clean energy infrastructure
