Accessories & Options

Extensions for PBT profile bending machines

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Made in Switzerland

Tool engineering & bending tests

Over 35 years of experience flow into tool design, material selection and validated tests - for reliable solutions that are precisely tailored to your requirements. Thanks to comprehensive in-house tests, we guarantee success for the customer, minimise risks and transparently demonstrate possibilities.

Tools are individually designed for your profiles; initial tests often lead to adjustments in order to achieve the highest bending quality. We also check feasibility before investments are made.

Your advantages

  • Personal and direct advice
  • Assessment of the bendability of your profile
  • Modification of cross-sections for optimum bending behaviour
  • Engineering, production and testing all from a single source
  • Expertise in materials, coatings, lubricating oils and other influencing factors
E84 A0834

Information for bending enquiry


In order to provide you with a quotation for tools, we need the respective bending direction and the smallest bending radius in mm.

Below you will find a helpful PDF showing the required information. Please download the PDF and send us a detailed profile drawing according to the requirements specified there.


Download in PDF

Automatic radius measurement system

Using the automatic radius measurement system, even complex forms with demanding materials can be manufactured without many years of know-how. For many radii it is thus possible to achieve all nominal values without rejects and costly and time-consuming test runs. In most cases even changed material properties can be handled without any problems.

  • Fully automatic radius measurement based on our PC400 control systems
  • The pneumatic gauge heads can be positioned variably to the right and left of the bending rollers
  • Measurement of one or more different radii in the same profile is possible
  • Continuous and cyclical measurement of the actual manufactured radius possible
  • After measurement of the actual manufactured radius, automatic correction takes place until nominal radius is reached
More Information
PBT Automatic radius measuring system for PBT profile bending machines - Detail PBT Automatic radius measuring system for PBT profile bending machines - Detail
AWI00896e

Mandrel bending device MBD4

  • Profile feed unit in 6 m version
  • Compressive force approx. 4000 kg
  • For bending hollow profiles up to approx. 2.5 x profile width in one pass.
  • Servo technology with CNC-controlled mandrel and feed unit (booster).
  • Guarantees slip-free bending even of small radii in one pass.

Mandrel bending device MBD20

  • Version: 6 m long.
  • Pressing force peak 200 kN. Including mandrel retract and mandrel lubrication.
  • With this CNC controlled device you can bend hollow profiles in one go.
  • Guarantees zero-slip bending of even small radii in a single pass
Wid4336 Wid4217

Demonstration of HELIX Servo + MBD200


Supporting roller controlled

(Z-axis) for 3D bending (right and/or left)

The controlled supporting roller additionally makes it possible to bend with a gradient. With the associated software, it is simple to programme and bend 3D elements.

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3D bending/turning device

Manual or CNC-controlled, for model PBT25

Allows bending into the third dimension and additional turning of the profiles in two directions.

More about 3d-bending

Frequently asked Questions (FAQs)

PBT AG offers a wide range of accessories and extensions for profile bending machines, including:

All solutions are precisely adapted to the respective application and significantly increase precision, process reliability and production flexibility.

PBT has more than 35 years of experience in tool design and material selection. The tooling portfolio includes:

  • Profile-specific bending rolls

  • Custom mandrel tools (articulated mandrels, ball mandrels, full and partial segments)

  • Special geometries for complex profile cross-sections

  • Special tools made from various materials

All tools are individually engineered for the respective profile and validated through comprehensive in-house testing. PBT evaluates technical feasibility before any machine investment is made.

The automatic radius measuring system enables fully automated radius measurement based on the PC 400 control system.

Key features include:

  • Pneumatic measuring heads, variably positionable on the left and right of the bending rolls

  • Measurement of one or multiple different radii within the same profile

  • Selectable continuous or cyclic measurement of the actual radius

  • Automatic correction until the target radius is achieved

PBT offers two main mandrel bending systems:

MBD4:

  • Profile feed unit with a length of 6 m

  • Pressing force of approx. 4,000 kg

  • Suitable for hollow profiles up to 2.5 times the profile width

  • CNC-controlled servo technology for slip-free bending

MBD20:

  • Profile feed unit with a length of 6 m

  • Peak thrust force of 200 kN

  • Integrated mandrel retraction and automatic mandrel lubrication

  • Ideal for thin-walled, complex hollow profiles

Both systems can be mounted or removed in less than five minutes.

Yes. Retrofitting and modernisation are an integral part of PBT’s service portfolio. Thanks to the modular machine concept, many accessories and optional modules can be integrated at a later stage. Technical feasibility is evaluated on a case-by-case basis.

PBT provides expert consultation and test bending services. Key selection criteria include profile geometry, material, required bending radius, production volume and degree of automation.

Yes. PBT’s service offering includes:

  • Consultation prior to investment decisions

  • Planning, design and manufacturing of special tools

  • Installation and commissioning

  • Training and instruction

  • Service and maintenance

  • Remote support

  • Spare parts supply

Consultation, training and commissioning at the PBT facility are provided free of charge.

Let us advise you

Eric Brüngger
International Sales Manager

Phone: +41 71 633 21 51