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Sorting and plugging

Z

Description of the device

Plugging/unplugging devices are self-contained units that are used to insert a plug into the pipe before it passes through the ultrasonic inspection device and then remove it. The device stands on a separate frame. When inserting or removing the plug, the pipe is clamped by the jaws of the vise, which are clamped by a pneumatic cylinder. The clamping force of the vice can be regulated by the pressure supplied to the pneumatic cylinder. The jaws are made of polyurethane to avoid any indentation on the pipe surface.

Technical parameters of the machine

Diameter of pipes:

10 – 30 mm

Pipe lengh

6000 – 22200 mm

Pipe wall thickness:

0,5 – 5 mm

Pipe wall thickness

230/380 V ±10% , 50 Hz

Pressurized air

min. 5,5 bar

Ambient temperature

from +1 to +35 °C

Working mode

Automatic manual

The plugs, 60 in number, are stored in a double-sided binder. The binder has specific grooves milled into the sides for insertion into the unit frame and is also equipped with several sensors for checking the range of plugs. Specific plug dimensions are prescribed for the specified pipe dimensions.

 

The plugging mechanism is composed of a gantry which moves in the longitudinal direction, i.e. parallel to the axis of the pipe. The movement of the gantry is ensured by a servomotor with a motion screw and a linear guide. On the gantry is mounted on a linear line a gripper that moves in the transverse direction. This movement is again provided by a servomotor with a motion screw. The clamping jaws of the gripper also move vertically by means of a pneumatic cylinder. Using another pneumatic cylinder, the jaws are tilted 90° into the axis of the pipe to perform the plugging/unplugging operation.

Other equipment of the machine

  • Enhanced visualization with emphasis on intuitive and detailed display of operating states
  • Extended service with the ability to display manuals, service manuals and other documents on the HMI
  • Collection of agreed production parameters with automatic saving, display and data export.
  • Reversible binders for different plug sizes
  •  Plugs of different sizes according to user requirements
  • Pipe flow monitoring

A NEW LINE FOR PIPES OR RODS WILL DEMONSTRABLY MAKE PRODUCTION MORE EFFICIENT

90% of customers perceive Prestar's technology as highly advanced

Our solutions in industry:

Exclusive partnership in the DACH region:

Prestar & Saltega

Since March 2026, Prestar (Czech Republic) and Saltega (Germany) have been collaborating in Germany, Austria, and Switzerland. Together, we supply custom solutions for material handling, industrial automation, and the processing of tubes and bars. Customers in the DACH region gain local technical support, fast communication, and complete project execution – from design to service – through Saltega. The equipment is manufactured in Prestar's own production facilities in the Czech Republic, with an emphasis on high quality and appropriate certifications.

Since March 2026, Prestar (Czech Republic) and Saltega (Germany) have been cooperating in Germany, Austria and Switzerland.
Together, we deliver tailor-made solutions for material handling and industrial automation.

Customers in the DACH region benefit from local technical support, fast communication, and complete project delivery through Saltega — from design to service.

We always design technical solutions in close cooperation with the customer and fully tailor them to specific project requirements. All equipment is manufactured in our own production facilities in the Czech Republic, with an emphasis on high quality and relevant certifications.