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[Translate to Englisch:] Pipe Sizer von DD für die Rohrumfomung

PST SERIES

Pipe sizing technology





LASER-ASSISTED CALIBRATING 
OF LARGE PIPES

The PIPE SIZER is the world's first pipe manufacturing machine to combine high-precision measuring and sizing of pipes in one unit. The 360° laser measuring system measures the pipe's internal geometry with the highest accuracy, while software specially developed for pipe manufacturing calculates the parameters for accurate, controlled sizing of pipes.

With the PIPE SIZER, you can reduce your calibrating time by up to 80%, increase your daily output and revenue by more than three times and achieve your ROI from the very first major order - with maximum precision and quality for the most demanding pipe manufacturing requirements.

 

[Translate to Englisch:] Pipe Sizer Rohrenden


Advantages of the
PIPE SIZER





Eliminating the changeover between measuring station and calibration press accelerates your production process, reduces crane times, and increases your production output by up to 300%.

With more efficient processes, you are able to respond quickly to market demands. You offer your customers significantly shorter delivery times while increasing your profitability.

With precise, continuous measurement, you ensure that your metal pipes are manufactured to exact specifications and can be welded flawlessly without rejects.

With gentle pipe sizing technology that preserves the material properties almost completely, you produce metal pipes with optimum strength, toughness, and elasticity that withstand the highest loads – for durable and resilient end products.

With shape correction by the PIPE SIZER, you ensure that the process flow after non-destructive testing is not interrupted and that throughput times are significantly shortened.

With automated pipe sizing processes, you ensure that your metal pipes always meet the same high quality standard and minimize the need for rework.

With faster processes, cost reductions, and optimized workflows, you achieve ROI in under 6 months – your first major order makes your investment profitable.

With automated and precise data acquisition, you receive complete and reliable documentation for audits, certifications, and sustainability reports – and save time and costs in the inspection process.

 

 

Request Pipe Sizer

 

 

Pipe Sizer 
in Application

 





Scope of delivery

  • Machine type PST 1300 PE EX with integrated 360° circular laser measuring system for measuring and pinpoint sizing of pipe ends (incl. additional expander function)
  • Double unit with two opposing PIPE SIZER units
  • System software (PLC software and DDPST software specially tailored by DANGO & DIENENTHAL for the pipe industry)
  • Programming of the customer’s pipe guidance and positioning (automatic center point correction)
  • One stationary compact hydraulic unit for both machine units
  • Tools for flexible use with internal pipe diameters (iØ) from 276 to 1,016 mm

Design and function
of the PIPE SIZER

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360° measurement - 100% control

Compared to conventional tactile measuring methods, the 360° circular laser measuring system measures without contact, detects 100% of the pipe geometry, and enables previously unattainable calibration accuracy – minimizing production errors in pipe calibration.

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Measuring & sizing - efficiently combined

While traditional straightening processes require time-consuming machine changeovers, additional setup times, and interruptions to production, the PIPE SIZER ensures seamless, continuous production and increases pipe forming efficiency.

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Precise result - maximum quality

Compared to conventional systems with wider tolerances, the PIPE SIZER achieves exceptional dimensional accuracy with an ovality of ≤ 2.0 mm. This meets the highest quality standards and minimizes the need for rework in pipe processing.

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Quickly captured – securely certified

Unlike manual, error-prone documentation methods, the PIPE SIZER automatically records all relevant data and provides it in an easily accessible format – reducing inspection effort and certification costs.


MEASURING AND SIZING

The 360° circular laser measuring system integrated at the front of the PIPE SIZER is moved into the metal pipe and records the geometry of the inner pipe wall. 

The software uses the results to calculate the default values for the forming segments and transmits them to the process control system. 

Depending on the position of the smallest internal diameter, the forming segments are then extended to create the desired inner contour. 

After completing the first pipe sizing process, the industrial pipe is measured again. Based on the contour data generated, the software calculates the pipe material’s springback value and factors it into the subsequent pipe sizing process. This way, the individual material properties of each metal pipe are utilized for pinpoint calibration.

PRECISE INLINE MEASUREMENT

A laser-based optical measuring system is mounted at the tip of the measuring lance. It measures the inner contour of the metal pipe without contact, generating a complete 2D image of the pipe interior. 

The measuring system works on the principle of laser triangulation: the laser projects a line onto the inner wall of the metal pipe. Two cameras contained in the measuring head capture the circular line with up to 1,080 measuring points over the entire circumference of the industrial pipe. This corresponds to an angular resolution of around 0.33°. 

The software determines the distance between the pipe axis and the inner pipe wall and uses this to generate the inner contour of the pipe. The 360° circular laser measuring system ensures extremely high repeatability. In addition, the recorded data guarantees full documentation of the entire process.

PINPOINT SIZING

The forming segments of the PIPE SIZER are controlled and spread apart by a hydraulic cylinder in accordance with the pipe geometry. 

Depending on the machine model, up to six forming segments are activated, each covering an angle of 60°. If the contour measurement shows that intermediate positions need to be set, the tool carriers can be rotated to the required position thanks to the 360° rotation. 

A quick and simple tool change allows flexible use for different pipe diameters.

SPECIALLY DESIGNED FOR THE PIPE INDUSTRY

The software solution developed by DANGO & DIENENTHAL for the 360° circular laser measuring system is specially tailored to the pipe industry.

BASIC SOFTWARE

The basic software allows full adaptation of all parameters to the specific requirements – from automatic center point correction to optimization of the laser for the surface properties of the inner pipe wall. In addition, the report function and the recording of the target diameter, the minimum and maximum diameter as well as the ovality are available.

3D-VISUALISIERUNG

The basic software visualizes the pipe geometry as a 2D contour. Using a supplementary trigger function of the 360° circular laser measuring system in combination with a position measuring system, 3D images of the pipe ends can also be created.

CUSTOMIZED SOFTWARE

We offer software solutions precisely tailored to your needs, such as the hiding of weld seams. These solutions can be flexibly adapted to your specific requirements.

SIMPLE DATA EXPORT

All geometric data recorded by the 360° circular laser measuring system is available in TXT or CSV file format and can be transferred to higher-level systems for the optimization of internal processes. Complete documentation is also ensured.

Pipe kinds

Depending on the design, the PIPE SIZER can be used to size the following types of industrial pipe:

  • Linear pipe segments
  • Pipe bends

Pipe types

  • Longitudinally welded (LSAW – Longitudinal Submerged Arc Welded)
  • Spirally welded (HSAW – Helical Submerged Arc Welded / SSAW – Spiral Submerged Arc Welded)
  • Electric Resistance Welded (ERW)
  • High-Frequency Welded (HFW)
  • Seamless (SMLS)
  • Solid material pipes
  • Clad pipes

Internal pipe diameter

  • 276-1,016 mm

Maximum efficiency

To maximize efficiency, we recommend a twin system with two opposing PIPE SIZER units. This allows both pipe ends to be measured simultaneously and then calibrated at the same time. This not only halves the processing time, but also reduces the time otherwise required for the time-consuming turning of the metal pipe. 

In addition to the PIPE SIZER, DANGO & DIENENTHAL also supplies a custom pipe feed system and the required programming for seamless integration into the production process.

 

 

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Technical data

Pipe inner diameter

276- mm

Max. Pipe thickness

mm

Cylinder power (max. 280 bar)

MN

Sizing depth

10- mm

Achievable ovality

≤ mm

Pipe types

LSAW, HSAW, ERW, HFW, SMLS



SIZING INSTEAD OF EXPANDING



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PIPE CALIBRATION WITHOUT PLASTIC DEFORMATION

When calibrating with standard expanders, pipes are subject to plastic deformation. 

The PIPE SIZER, on the other hand, sizes the metal pipe interior point by point whereby the average diameter is retained, and the material properties are preserved virtually unchanged.

MINIMUM OVALITY

Ovality is the difference between the largest and smallest diameter in a plane. The higher the roundness requirements, the more precise the measurement has to be. 

Using state-of-the-art laser measuring technology, the PIPE SIZER captures the pipe geometry with maximum precision and ensures that quality requirements are reliably met. The PIPE SIZER achieves an ovality of ≤ 2.0 mm.

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ADDITIONAL EXPANDER FUNCTION

Depending on the application, the PIPE SIZER is available with an additional function for gentle expansion. The achievable diameter increase is up to 0.8%. 

A quick change of tools allows flexible switching between the sizing and expander functions for different pipe diameters.

Image gallery



PIPE SIZER Laser Meassurement PIPE SIZER Piping PIPE SIZER Double Unit PIPE SIZER Laser Meassurement System PIPE SIZER iron construction krämer PIPE SIZER iron construction krämer PIPE SIZER


CONTACT

 

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