The Hydraulic Plug Mandrel is effective in holding pipe “out-of-roundness” to a minimum. It allows more degrees of bend, without wrinkles, to be made with 6″ (168mm) through 20″ (508mm) diameter pipe than with other type mandrels. It is easily convert pipe size and wall thickness range within the model’s size. It’s simple, robust design reduces maintenance requirements .This mandrel works with our standard bending machine and they are also able to work on independent hydraulic power source.

Product Uses

The Hydraulic Plug Mandrel is a high-performance internal pipeline tool designed for pipe alignment, internal support, and precision fit-up during welding operations. Powered by a hydraulic system, it expands inside the pipe to provide a secure grip, ensuring accurate alignment of pipe ends and maintaining proper joint geometry throughout the welding process. Its robust construction and reliable operation make it an essential tool for heavy-duty pipeline construction projects.

Hydraulic Plug Mandrels are widely used in the oil & gas, petrochemical, water transmission, and power industries where high-quality welds and precise pipe alignment are critical.

Common Uses

• Aligning pipe ends before welding.
• Providing internal support during pipe fit-up.
• Maintaining accurate pipe alignment throughout the welding process.
• Reducing weld misalignment and defects.
• Supporting heavy-wall and large-diameter pipelines.
• Improving welding quality and joint consistency.
• Assisting in pipeline fabrication and assembly.
• Reducing installation time and labor requirements.
• Increasing productivity in pipeline construction projects.
• Ensuring safe and efficient pipeline installation.

Applications

The Hydraulic Plug Mandrel is widely used in various pipeline and industrial sectors.

Oil & Gas Pipeline Construction

Used for the precise alignment and welding of crude oil, natural gas, and petroleum pipelines.

Cross-Country Pipeline Projects

Provides reliable internal alignment for long-distance transmission pipelines across challenging terrains.

Petrochemical Plants

Supports the fabrication and installation of process piping systems requiring high welding accuracy.

Refineries

Ensures proper alignment of refinery piping during construction, maintenance, and plant expansion projects.

Water Transmission Pipelines

Facilitates the installation of municipal and industrial water pipelines with consistent weld quality.

Power Generation Projects

Ideal for heavy-duty steam, cooling water, and process piping systems in thermal, nuclear, and renewable energy plants.

Pipeline Fabrication Workshops

Used for internal pipe alignment during pipe fabrication, welding, inspection, and assembly operations.