Fully automatic internal welding machine for pipelines

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Fully automatic internal welding machine for pipelines

PIPELINE AUTO WELDER · pipeline automatic welderseries

The ENGINE WELDER fully automatic pipeline internal welder is designed for complex conditions such as mountains, hills and long-distance networks, delivering efficient, precise and stable automatic internal circumferential welding — greatly improving efficiency and weld quality on demanding pipeline projects and fitting all harsh const

Fully automatic internal welding machine for flexible pipes

Designed for complex conditions such as mountainous areas, hills, and long-distance pipeline networks, Core Technology such as high-torque servo electric drive, hydraulic expansion, and electromagnetic braking is adopted to achieve efficient and accurate automatic welding of the inner ring seam of the pipeline.

Model:DW48/56-8H-D
Applicable pipe diameter:Φ1219-Φ1422mm
Welding unit:8 bottles
Weld Time:≤120S
Net weight:2400Kg
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Automatic internal welding machine for lithium battery pipes

With lithium battery drive + hydraulic control as the core power form, wireless remote control operation, get rid of cable constraints, designed for field, mountain, remote pipe network and other scenarios without external power supply.

Model:DW-EH48/56
Applicable pipe diameter:Φ1219-Φ1422mm
Welding unit:8 bottles
Weld Time:≤90S
Net weight:2950kg
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internal welderKey Advantages

Large torque servo drive
Strong power, smooth walking, suitable for heavy load continuous operation
Hydraulic expansion system
Quick centering and effective correction of pipeline misalignment
Lithium battery powered
Long-lasting life, get rid of external cables, flexible mobile deployment
Wireless remote control
Remote safety control to reduce operator safety risks
Excellent mobility over rough terrain
Can pass through 5D lateral 90°, longitudinal 30° bends
Wide environment adaptation
Suitable for altitudes ≤ 4000m, temperatures -40 to 65°C, humidity ≤ 90%

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Product Overview

The automatic pipe welding machine is the core equipment in the DENVO/engine welder automatic pipe welding series. It is specially designed for mountainous areas, hills, long-distance pipe networks and other complex working conditions to achieve efficient, accurate and stable automatic welding of the inner ring seam of the pipe. The series includes two models of flexible pipe automatic internal welding machine (DW48/56-8H-D) and lithium battery pipe automatic internal welding machine (DW-EH48/56). Core Technology such as high torque servo drive, hydraulic expansion, electromagnetic brake and lithium battery drive are used to adapt Φ1219-Φ1422mm large diameter pipes, which greatly improves the construction efficiency and welding quality of complex pipelines.

The equipment has strong passability (it can pass through 5D lateral 90°, longitudinal 30° bends) and wide environmental adaptability (altitude ≤ 4000m, temperature -40-65°C, humidity ≤ 90%), and can work in mountainous areas, hills and grid-free areas. It is a key equipment for automatic welding of inner ring seams in long-distance pipeline projects.

Core Technology Explained in Detail

  • Large torque servo drive: Strong power, smooth walking, suitable for heavy load continuous operation, to ensure that the welding process is not interrupted.
  • Hydraulic expansion system: Quickly centering and effectively correcting pipeline intersection problems to ensure pipeline assembly accuracy and improve welding pass rate.
  • Lithium battery powered: Long-lasting life, get rid of external cables, flexible mobile deployment, suitable for field unelectrified scenarios.
  • Wireless remote control: Safe remote handling reduces the risk of workers approaching the welding area.
  • Rapid Matchmaking and Welding: Pipeline group pairing and root welding can be completed in only about 5 minutes, efficiently adapting to the needs of the project.
  • Wide environment adaptation: Altitude ≤ 4000m, temperature -40–65°C, humidity ≤ 90%, suitable for harsh construction environment.

FAQ

1. How to choose between flexible internal welding machine and lithium battery internal welding machine?

Flexible inner welder(DW48/56-8H-D) Adopt servo electric drive + hydraulic expansion, root welding time ≤ 120s;lithium batteryinternal welder(DW-EH48/56) runs on lithium battery power with hydraulic control — no cables, root pass in ≤90s, ideal for off-grid field work.

2. What is the applicable pipe diameter range?

Both internal welding machines are suitable for Φ1219–Φ1422mm large diameter pipes. Each welding unit works independently and is automatically welded at all positions.

3. How do you cope with complex terrain?

The equipment can pass through 5D horizontal 90° and longitudinal 30° bends, with strong passage, deep into complex terrain operations such as mountains and hills, and supports wireless remote control and remote control.

4. How does the inner welder work with the outer welder?

After the inner welder completes the inner circumferential seam (root welding) of the pipe, theFully automatic external welding machineComplete the filling and covering, and combine the inside and outside to achieve automatic welding of the pipeline at all positions.