
Special-purpose machine engineering for isobaric double-belt presses as well as prototype and series production in our own technology park

HELD Technologie GmbH
78647 Trossingen (headquarters, manufacturing, technology parks 1 and 2)New on Amplifa
About HELD Technologie
HELD Technologie GmbH is an internationally active mechanical engineering company headquartered in Trossingen in the Schwarzwald-Baar region. Its core competence is the development and manufacture of continuous, isobaric high-performance double-belt presses for special-purpose machine engineering, which are used worldwide for the production of, among other things, HPL/CPL decorative laminates, battery and fuel cell components, organosheets, prepregs and ballistic composite panels. The systems operate continuously with isobaric surface pressure up to 80 bar and process temperatures up to 400 °C; roll and sheet material, powder and granulate can be processed. In its own technology park, rental systems are available for test runs, material development, prototype production and series production, complemented by edge trimming, cross-cutting and packaging. Founded in 1949 as a polishing workshop for watch cases, the family-owned company is managed in its fourth generation by Till Held and Matthias Fisel and supplies customers worldwide via sales partners in China, Japan and Taiwan.
- Site
- Trossingen
- Processes
- Continuous isobaric pressing (double-belt press): laminating, Compacting (densification of nonwovens/fabrics, e.g. GDL from carbon nonwoven), Consolidating (organosheets, bipolar plates, composite materials), Smoothing (surface finishing), Production of HPL/CPL decorative laminates (continuous, 30–70 bar, 150–200 °C, CPL 0.3–0.5 mm, HPL, Lamination of battery components (separator, ESL, Mono-Cell, 90–130 °C, 10–60 bar), Production of fuel cell/electrolyser components (PEM, MEA, GDL, BPP), Roll-to-roll / sheet / granulate-to-roll/sheet processing up to 400 °C and 80 bar
- Materials
- Polyethylene (PE), Polypropylene (PP), Polystyrene (PS), Polyvinyl chloride (PVC), Tepex® (fiber-reinforced thermoplastic composite), Carbon fibers / carbon fabric (CFRP), Glass fiber-reinforced plastic (GFRP), Aramid (meta-aramid)
- Founded
- 1949
- Industries
- Electronics & Consumer Goods, Hydrogen, Fuel Cell and Electrolysis, Batteries (Lithium-Ion, Sodium-Ion, Solid-State), Automotive, Aerospace, Construction / Building Technology
- 01
Material and process development
- 02
Design and construction of the double-belt press
- 03
Prototype production and test runs in the technology park
- 04
Contract series production
- 05
Edge trimming, cross-cutting, packaging
- 06
System service, maintenance and training
Materials and Processes
Isobaric double-belt press (continuous pressing)
Continuous laminating, compacting, consolidating and smoothing under isobaric surface pressure up to 80 bar and temperatures up to 400 °C.
HPL and CPL laminates
Continuous production of decorative laminates from kraft paper and melamine-resin-impregnated decorative papers, CPL 0.3–0.5 mm and HPL 0.7–1.2 mm.
Polyvinyl chloride (PVC)
Processing of PVC films and granulate into furniture and floor coverings as well as interior finishing surfaces.
Standard thermoplastics (PE, PP, PS)
Versatile thermoplastics for films, laminates and composite materials in automotive and consumer goods.
Carbon and glass fiber composites (CFRP/GFRP, prepregs, organosheets)
Continuous production of fiber-reinforced thermoplastics for lightweight components in automotive, aerospace.
Tepex® (fiber-reinforced thermoplastic composite)
Processing of organosheets for structurally and design-relevant components in the automotive interior.
Aramid and UHMWPE fabrics
High-strength fabrics for ballistic panels, protective vests, protective helmets and vehicle armor.
Copper-clad laminate (FCCL)
Continuous production of printed circuit board materials for electronics including low-Dk/Df laminates for 5G.
Separator, ESL, Mono-Cell (battery components)
Lamination of PE/PP and non-woven separators with electrodes at 90–130 °C and 10–60 bar.
PEM, MEA, GDL, bipolar plates (hydrogen technology)
Continuous production of membranes and components for fuel cells and electrolysers.
Organofilm with recycled carbon fibers
Production of films from recycled carbon fibers, awarded the AVK Innovation Prize 2010.
Steel belts (press belts)
Service and reconditioning of steel belts including mechanical surface cleaning and damage repair.
Sites

Trossingen
DEHeadquarters, manufacturing, technology parks 1 and 2
- Lot size
- Prototype production and series production
- Materials
- Plastics, fiber composites, laminates, battery and fuel cell components
- Isobaric double-belt press HAILEY (new generation, 2024)
- Double-belt press Heather 4 (width 0.8 m, up to 80 bar, up to 400 °C)
- Double-belt press Heather 5 (width 1.5 m, up to 80 bar, up to 400 °C)
- Unwinders and winders
- Edge trimming
- Cross-cutting system
- Packaging
Components and Semi-Finished Products




Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Continuous isobaric pressing (double-belt press): laminatingPlastics | – | up to 1.6 m (technology park) | – | Prototype – Series production | HPL/CPL laminates, PVC, Thermoplastics, Prepregs, Organosheets, Film composites |
| Compacting (densification of nonwovens/fabrics, e.g. GDL from carbon nonwoven)Plastics | – | – | – | – | Carbon nonwovens, UHMWPE fabrics, Aramid |
| Consolidating (organosheets, bipolar plates, composite materials)Plastics | – | – | – | – | Glass fiber fabric, Carbon fiber fabric, Thermoplastic matrix, Resins |
| Smoothing (surface finishing)Surface | – | – | – | – | Decorative laminates, Functional layers |
| Production of HPL/CPL decorative laminates (continuous, 30–70 bar, 150–200 °C, CPL 0.3–0.5 mm, HPLPlastics | – | – | – | – | Kraft paper, melamine-resin-impregnated decorative papers, PVC |
| Lamination of battery components (separator, ESL, Mono-Cell, 90–130 °C, 10–60 bar)Plastics | – | – | – | – | PE/PP separators, Non-woven separators (aramid/ceramic), Graphite, Silicon, LFP/NMC/NCA/LCO/LMO, Copper foil, Aluminum foil |
| Production of fuel cell/electrolyser components (PEM, MEA, GDL, BPP)Plastics | – | – | – | – | PFSA films, Catalyst layers (CCM), Carbon nonwoven, Glass/carbon fabric |
| Roll-to-roll / sheet / granulate-to-roll/sheet processing up to 400 °C and 80 barPlastics | – | up to 1.6 m | – | – | Roll material, Sheet material, Powder, Granulate |
| Edge trimming and cross-cutting (cutting pressed material into panels)Machining | – | – | – | – | Laminates, Composite materials |
| Cutting, drilling and milling of composite semi-finished products; bonding and rivetingMachining | – | – | – | – | carbon fiber-reinforced thermoplastics |
7 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Isobaric double-belt press (new generation) | HELD Technologie GmbH HAILEY | – | – | 2024 | Technology park Trossingen |
| Isobaric double-belt press | HELD Heather 4 | – | Width 0.8 m; up to 80 bar; up to 400 °C | 2010 | Technology park Trossingen |
| Isobaric double-belt press | HELD Heather 5 | – | Width 1.5 m; up to 80 bar; up to 400 °C | – | Technology park Trossingen |
| Isobaric double-belt press (rental systems in the technology park) | HELD Heather 1 / Heather 2 | – | – | 1989 | Technology park 1 Trossingen-Schura |
| Double-belt press (largest high-temperature/high-pressure system) | HELD Heather 3 | – | – | 2007 | Technology park 1 Trossingen-Schura |
| Cross-cutting system | – | – | – | – | Technology park Trossingen |
| Unwinders and winders (peripherals) | – | – | – | – | Technology park Trossingen |
Additional services
Reference customers
History
- 1949
Adolf Held founds a polishing workshop for watch cases in Trossingen-Schura.
- 1958
Construction of a hydraulic press for watch cases made of sawdust – entry into mechanical engineering.
- 1963
Development of assembly machines for kitchen furniture carcasses; customers include Alno and Miele.
- 1975
Market launch of the first isobaric double-belt press including an air-assisted pressure cushion.
- 1989
Construction of technology park 1 in Trossingen-Schura with the rental systems Heather 1 and Heather 2.
- 1998
Sale of the double-belt press Heather 1.
- 2002
Till Held and Richard Fisel take over company management as the third generation.
- 2007
Commissioning of the double-belt press Heather 3 in technology park 1.
- 2010
Installation of Heather 4, sale of Heather 3; AVK Innovation Prize Environment for organofilms made from recycled carbon fibers.
- 2012
Opening of technology park 2 with the world's largest high-temperature and high-pressure double-belt press.
- 2017
Delivery of the widest double-belt press (2.24 m width, 4.1 m reaction zone) and the first isobaric press for format-free HPL production up to 1.2 mm.
- 2021
Richard Fisel retires; Matthias Fisel becomes managing director alongside Till Held (fourth generation).
- 2024
75th company anniversary (HELDDays) and release of the new machine generation with the double-belt press HAILEY.