Metal Bellow Forming Machines

Metal bellows

are everywhere around us in our daily lifes. Some applicable markets can be found in Aerospace, Breweries & Distilleries, Chemical & Petrochemical Processing, Construction & Building Services, Cryogenics, Defence (Air), Defence (Land), Defence (Sea), Diesel engines maritime and generator sets, District heating and cooling, Race cars, Food processing and food packaging machinery, Fusion energy research, Heat exchangers, Heating, ventilation, Air conditioning (HVAC), Hydrogen Energy Research, Instrumentation, Liquified Natural Gas (LNG PNG), Locomotive and rail infrastructure, Medical, pharmaceutical and healthcare facilities, Mining and mineral processing, Oil and Gas Exploration and Production, Oil and Gas Transportation and Storage, Oil and Gas Refining and Distribution, Power distribution – Cable tunnels, Power generation – Coal, Gas, Oil-fired, Power generation – Geothermal, Power generation – nuclear, Scientific research facilities, Scrubbers and exhaust gas cleaner systems, Shipbuilding, Ship repair and Salvage, Space exploration and Communication, Steel making, foundries, metallurgy, Waste water management, Environmental management, Water treatment plants, Desalination plants and many more.

H&T ProduktionsTechnologie in Crimmitschau, Germany, builds machines for forming metal bellows and expansion joint bellows with diameters from 14 to 3,000 mm. The range covers mechanical forming (EXPAN and PRM), hydroforming (APMY, WSM) and elastomer forming (APME), plus calibration, so bellows manufacturers get all common forming methods from one European supplier. Customers produce bellows for energy and power plants, petrochemicals, vacuum technology, nuclear, aerospace and building services.

Mechanical Expanding Machine – EXPAN

EXPAN Series metal bellow forming machines are efficient solutions for small and medium batch production of metal bellows for compensators from tubes. We offer advanced machines designed specifically for forming individual waves in metal bellows through a mechanical expanding process.

Single-Convolution Formation / Single Wave forming

Precision mechanical expanding ensures consistent results for each individual convolution.

Edge Detection Sensors

Integrated sensors detect bellow edges, with motor-controlled table height adjustments for enhanced accuracy.

Pressure Mark Prevention

Base tooling includes a swiveling motion to prevent pressure marks on the bellows to reduce or minimize rework.

Robust Steel Welded Construction

Built for stability and longevity, our machines are most often designed for pit installation (optional platform setup available).

Wave Profiling Flexibility

Subsequent profiling optimization can be done using PRM series profiling machines.

Fast Tool Changes

Simplified tool changeover minimizes non productive time.

Adjustable Base Tooling

Easily adaptable to different diameter ranges, with high flexibility in forming thanks to interchangeable segments.

EXPAN 500

	EXPAN 500	EXPAN 1600	EXPAN 3000
Diameter	100– 500 mm	350 – 1600 mm	1400 – 3000 mm
Wall thickness	1×0,3 – 5×1,0 mm	1×0,5 – 6×1,0 mm	1×1,0 – 6×1,0 mm
Cycle time / corrugation	ca. 30 – 45 s	ca. 30 – 45 s	ca. 45 – 90 s

	EXPAN 500	EXPAN 1600	EXPAN 3000
Diameter	100– 500 mm	350 – 1600 mm	1400 – 3000 mm
Wall thickness	1×0,3 – 5×1,0 mm	1×0,5 – 6×1,0 mm	1×1,0 – 6×1,0 mm
Cycle time / corrugation	ca. 30 – 45 s	ca. 30 – 45 s	ca. 45 – 90 s

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Hydraulic Expanding Machines for High-Output Metal Bellow Production – APMY

The APMY Series delivers efficient, high-output solutions for manufacturing metal bellows.

All Waves / convolutions are formed in one single operation.

Complete Forming with Hydraulic Internal Pressure

Achieve full wave formation through powerful hydraulic pressure.

Manual Loading and Unloading

Manual insertion and removal of sleeves/bellows for optimal control.

Diameter-Specific Cassette

System Customizable cassettes tailored to specific diameters.

Single-Step Wave Formation

Create entire metal bellows in one seamless operation.

Single and Multi-Layer Bellow Production

Produce both single- and multi-layer bellows for various applications.

Up to 30 convolutions per Bellow

Efficiently form up to 30 convolutions within each bellow.

End Contouring with Special Support Cassettes

Specialized cassettes shape precise end contours.

Combination of Straight Pipe Sections and corrugated Segments

Flexibility to produce bellows with straight and wave-formed segments.

Fully automated setup is available as an option

Robotic loading and unloading streamlines your production.

APMY 100

Hydroforming (Extrusion) machines	APMY 100	APMY 100 S	APMY 250	APMY 400
Diameter range	40 – 100 mm	14 – 100 mm	80 – 250 mm	100 – 400 mm
Wall thickness	0,2 – 1,2 mm	0,2 – 3 mm	0,2 – 3 mm	0,2 – 3 mm
Inner pressure	200 bar	to 500 bar	200 bar	200 bar
Max. tube length	up to 1000 mm	up to 1000mm	up to 1000mm	up to 1000mm

Hydroforming (Extrusion) machines	APMY 100	APMY 100 S	APMY 250	APMY 400
Diameter range	40 – 100 mm	14 – 100 mm	80 – 250 mm	100 – 400 mm
Wall thickness	0,2 – 1,2 mm	0,2 – 3 mm	0,2 – 3 mm	0,2 – 3 mm
Inner pressure	200 bar	to 500 bar	200 bar	200 bar
Max. tube length	up to 1000 mm	up to 1000mm	up to 1000mm	up to 1000mm

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Elastomer Forming Machine – APME

The APME Series is an effective solution for manufacturing metal bellows for compensators and is ideal for manufacturing tubes for small to medium production volumes.

Complete Forming with Elastomer Internal Pressure

Achieve full wave formation through powerful elastomer pressure.

Manual Loading and Unloading

Manual insertion and removal of sleeves/bellows for optimal control.

Diameter-Specific Cassette

System Customizable cassettes tailored to specific diameters.

Single-Step Wave Formation

Create entire metal bellows in one seamless operation.

Single and Multi-Layer Bellow Production

Produce both single- and multi-layer bellows for various applications.

End Contouring with Special Support Cassettes

Specialized cassettes shape precise end contours.

Combination of Straight Pipe Sections and Wave Segments

Flexibility to produce bellows with straight and wave-formed segments.

APME 100

	APME 100	APME 200	APME 250
Diameter	40 – 120 mm	40 – 200 mm	80 – 250 mm

	APME 100	APME 200	APME 250
Diameter	40 – 120 mm	40 – 200 mm	80 – 250 mm

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Profiling Machine – PRM

PRM profiling machines offer an automated procedure, ensuring high precision and efficiency in metal bellow manufacturing. Designed for flexibility, these machines allow for the exchange of parts with a simple design, minimizing downtime and simplifying maintenance.

A key advantage of PRM profiling machines is the axial feeding of the profiling rollers during profiling, which enhances forming accuracy and ensures uniform material flow. Additionally, the adjustable bellows mounting provides versatility, accommodating different bellow sizes and optimizing the forming process for various applications.

With their advanced automation, user-friendly operation, and adaptable design, PRM profiling machines deliver reliable performance and high-quality results, making them an ideal choice for industrial forming processes.

Automated operation

Simple interchangeable parts

Axial adjustment of profiling rollers possible during profiling process

Adjustable bellows support

PRM 800

	PRM 800	PRM 1600	PRM 3000
Diameter	100 – 800 mm	350 – 1600 mm	1400 – 3000 mm
Wall thickness	1×0,3 – 5×1,0 mm	1×0,5 – 6×1,0 mm	1×1,0 – 6×1,0 mm
Bellow mounting	horizontal	horizontal	vertical

	PRM 800	PRM 1600	PRM 3000
Diameter	100 – 800 mm	350 – 1600 mm	1400 – 3000 mm
Wall thickness	1×0,3 – 5×1,0 mm	1×0,5 – 6×1,0 mm	1×1,0 – 6×1,0 mm
Bellow mounting	horizontal	horizontal	vertical

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Corrugated Hose Production – WSM

Fully automated manufacturing of flexible metal tubes (corrugated hoses) by continuous, hydraulic expressing segments by segment.

Machine of the “WSM“ type in horizontal design
Forming of corrugated segments with several corrugations per shaping
Corrugated segments and cylindrical segments can be programmed in arbitrary sequence
Automated tube feeding
Automated delivery of finished parts on roll table for manual removal
Manufacturing of corrugated hoses up to 6.000 mm length (depends on nominal widths)
Ingoing material length from 2.000 to 13.000 mm

WSM

	WSM
Wall thickness	0,15 – 1,0 mm
Diameter	6 – 80

	WSM
Wall thickness	0,15 – 1,0 mm
Diameter	6 – 80

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videos for metal bellow forming machines

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Metal Bellow Forming Machines

Metal bellows

Mechanical Expanding Machine – EXPAN

Key Features:

Single-Convolution Formation / Single Wave forming

Edge Detection Sensors

Pressure Mark Prevention

Robust Steel Welded Construction

Wave Profiling Flexibility

Fast Tool Changes

Adjustable Base Tooling

Hydraulic Expanding Machines for High-Output Metal Bellow Production – APMY

Key Features:

Complete Forming with Hydraulic Internal Pressure

Manual Loading and Unloading

Diameter-Specific Cassette

Single-Step Wave Formation

Single and Multi-Layer Bellow Production

Up to 30 convolutions per Bellow

End Contouring with Special Support Cassettes

Combination of Straight Pipe Sections and corrugated Segments

Fully automated setup is available as an option

Elastomer Forming Machine – APME

Key Features:

Complete Forming with Elastomer Internal Pressure

Manual Loading and Unloading

Diameter-Specific Cassette

Single-Step Wave Formation

Single and Multi-Layer Bellow Production

End Contouring with Special Support Cassettes

Combination of Straight Pipe Sections and Wave Segments

Profiling Machine – PRM

Key Features:

Automated operation

Axial adjustment of profiling rollers possible during profiling process

Corrugated Hose Production – WSM

Key Features:

videos for metal bellow forming machines

APME

Expan

APMY

PRM

WSM

Let’s work together