Special machinery construction, wire-laying systems and heating-field/antenna films for laminated glass
Hamacher Maschinenbau GmbH & Hotlineglass GmbH
Warmweiherstr. 50, 52066 Aachen · Bismarckstr. 2-8, 52066 AachenNew on Amplifa
About Hamacher Maschinenbau and Hotlineglass
Hamacher Maschinenbau GmbH in Aachen has been developing and manufacturing special machines and systems since 1949, including design, mechanics and electrics. Core areas are wire-laying machines for heating fields made of tungsten wire on PVB films (drum machine PSW for mass production, CNC table machine PST for small and medium series), busbar laying machines as well as centrifuges, joint milling machines and profile-ground toothed belt molds, toothed and knurled rollers in steel ST52-3 or aluminum with hard chrome or nickel surface. The subsidiary Hotlineglass GmbH, founded in 2005, produces in three cleanrooms (approx. 400 m²) PVB and EVA films coated with heating and antenna wires for heatable automotive, construction and roof glass – from prototypes to OEM large-scale series, including CNC contour cutting and 100% functional testing. Customers include Ford and Volkswagen; wire-laying systems are in use in almost every EU country as well as in the USA and China.
- Site
- Aachen
- Processes
- Wire laying (heating fields) on PVB films, drum machine PSW (mass production,, Wire laying (heating fields) on PVB films, table machine PST (CNC, free contour), Busbar laying on PVB (bonding and/or soldering of busbars), Production of heating-field and antenna PVB panes (wire coated, CNC contour), Cutting of PVB films in free CNC contour, Toothed belt molds, toothed rollers and knurled rollers, profile-ground with free-form profiling, Centrifuges for degassing, debubbling, defoaming and dewatering of liquids (continuous, Joint milling (mechanical milling of masonry joints, finger milling cutter/disk cutter with
- Materials
- Tungsten wire, Copper wire, PVB (polyvinyl butyral), EVA / EVAC (ethylene-vinyl acetate copolymer), Steel ST52-3, Aluminum, Hard chrome (surface coating), Nickel (surface coating)
- Certificates
- DIN ISO 9001:2008, DIN ISO 9001:2008 (Hotlineglass production)
- Founded
- 1949
- Industries
- Glass industry, Automotive industry, Construction glass/architecture, Railway, Aerospace
- 01
Design and development
- 02
Mechanical and electrical manufacturing
- 03
Wire/busbar laying on PVB and EVA films (cleanroom)
- 04
CNC contour cutting of the films
- 05
100% functional testing
- 06
Assembly and delivery
Materials and Processes
Tungsten wire
Heating wire from 16 µm diameter for almost invisible heating fields in laminated glass.
Copper wire
Antenna wire from 76 µm for wire antennas in windshields.
PVB (polyvinyl butyral)
Film in the glass sandwich onto which heating and antenna wires are laid before the glass lamination process.
EVA / EVAC (ethylene-vinyl acetate copolymer)
Alternative thermoplastic film material for laminated panes.
Steel ST52-3, stress-relief annealed
Material for toothed belt molds, toothed and knurled rollers.
Aluminum
Roller material as an alternative to steel.
Tinned copper busbar (6–12 mm)
Busbar for bonding and soldering onto PVB.
Hard chrome or nickel coating
Surface finish for profile-ground rollers.
Laminated glass / laminated construction glass
End product into which the coated films are incorporated as heating fields or antennas.
Locations
Aachen (Warmweiherstr. 50)
DEProduction and administration Hamacher Maschinenbau GmbH
- Materials
- Steel ST52-3, aluminum
- Special profile grinding machine for toothed belt molds
- Design and development
- Mechanical and electrical manufacturing
Aachen (Bismarckstr. 2-8)
DEProduction Hotlineglass GmbH
- Lot size
- Prototype to OEM large-scale volumes
- Materials
- Tungsten wire, copper wire, PVB, EVA, busbar 6–12 mm
- Wire-laying machines PSW/PST
- Busbar laying machines
- CNC film cutting machine
- 3 cleanrooms (approx. 400 m² in total)
- 100% functional testing systems
Products and Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Wire laying (heating fields) on PVB films, drum machine PSW (mass production,Joining | – | 4.95 m (drum length) | – | mass production | Tungsten wire, PVB |
| Wire laying (heating fields) on PVB films, table machine PST (CNC, free contour)Joining | – | 3 m (table) × 2 m (table) | – | small series – medium series | Tungsten wire, PVB |
| Busbar laying on PVB (bonding and/or soldering of busbars)Joining | – | 3 m (table) × 2 m (table) | – | high volume | tinned copper busbar (8mm tested), PVB |
| Production of heating-field and antenna PVB panes (wire coated, CNC contour)Joining | +/-0.5mm (antenna wires, layout) | – | – | prototypes/small series – OEM large volumes | Tungsten wire (from 16µm), Copper wire (from 76µm), PVB, EVAC/EVA films, Busbars 6-12mm |
| Cutting of PVB films in free CNC contourMachining | – | – | – | – | PVB |
| Toothed belt molds, toothed rollers and knurled rollers, profile-ground with free-form profilingMachining | Roller diameter +/- 0.01mm per meter of length; · 3-5µm (in profile longitudinal | Profiling length up to 1600mm × Ø35mm to Ø1600mm (roller diameter) | – | – | Steel ST52-3 (stress-relief annealed), Aluminum |
| Centrifuges for degassing, debubbling, defoaming and dewatering of liquids (continuousSpecial machinery/Engineering | – | – | – | – | – |
| Joint milling (mechanical milling of masonry joints, finger milling cutter/disk cutter withSpecial machinery | – | – | – | – | – |
| Special machinery construction including design, development, mechanics and electrics (order-based)Engineering | – | – | – | – | – |
| Design of glass heating systems (calculation and design of heating fields, 4-6 watts/dm² at 12Engineering | – | – | – | – | Tungsten wire, PVB, EVA |
| Testing/100% functional test of heating-field and antenna systems including connectors/plugsTesting | – | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Sir-me-We-put-your-answers-here Placeholder | Hamacher | – | – | – | – |
Additional services
Reference customers
Quality
The production of heating and antenna PVB panes at Hotlineglass is certified according to DIN ISO 9001:2008. Every heating and antenna system, including connectors, is 100% functionally tested; rollers are inspected with a profile projector and documented with a measurement report.
| Evidence | Aachen |
|---|---|
| DIN ISO 9001:2008 (Hotlineglass production) |
History
- 1949
Founding of the Hamacher company; production of special machines and door fitting systems, initially patented roof tile presses and transport systems for flat glass
- 1980
From around 1980, increased focus on in-house developments such as wire-laying machines, toothed belt molds, centrifuges and joint milling machines
- 1992
German Construction Machinery Innovation Award for joint milling machines
- 1994
Split into Hamacher Fittings and Hamacher Maschinenbau GmbH
- 1995
Takeover of the Wahlen circular saw factory; acquisition of a special profile grinding machine for toothed belt molds
- 2005
Founding of the subsidiary Hotlineglass GmbH
- 2009
Founding of Hotlineglass USA with a cooperation partner