Development and manufacture of film stretching lines for packaging and technical films made of plastic
Brückner Maschinenbau GmbH
Siegsdorf (Headquarters, DE) · Dover, NH (USA) · Funza (Colombia) · Topolcany (Slovakia) · Navi Mumbai (India) · Rayong (Thailand) · Suzhou (China) · Tokyo (Japan)New on Amplifa
Expertise in Film Stretching Technology
Brückner Maschinenbau GmbH has been developing and manufacturing production lines for the biaxial stretching of plastic films since 1960. The portfolio includes lines for BOPP, BOPET, BOPA and BOPE packaging films as well as special lines for battery separator films (BSF), capacitor films (BOPP-C), current collector films (CCCF), optical films and high-temperature applications with polymers such as polyimide, PTFE and PEEK. In terms of process technology, sequential (MDO/TDO) and simultaneous biaxial stretching technology (LISIM®), monoaxial stretching as well as extrusion with single-screw, twin-screw and cascade extruders are offered. The offering is complemented by a technology centre in Siegsdorf with a multilayer laboratory extrusion line, the KARO® 5.0 laboratory stretching frame, a pilot line as well as a chemistry and film laboratory, the digital platform Brückner ONE®, plus service, upgrades and retrofits via Brückner Servtec. The lines are used to manufacture packaging and technical films for applications in the packaging industry, e-mobility, energy storage, electronics, renewable energies, automotive, medical technology and aerospace. The headquarters are located in Siegsdorf (Bavaria), complemented by international sales and service locations and a network of around 1,150 suppliers with a purchasing volume of €450 million.
- Site
- Siegsdorf
- Processes
- BOPP film stretching line (sequential), BOPP film stretching line (simultaneous, LISIM®), BOPET film stretching line (sequential), BOPA film stretching line (sequential/simultaneous), BOPE film stretching line, Lines for battery separator films (BSF), BOPP capacitor film lines (sequential/simultaneous), Lines for Composite Current Collector Films (CCCF)
- Materials
- PP (Polypropylene), PET (Polyester), Polyamide, Polyethylene, UHMW-PE (ultra-high molecular weight PE), PETG, PLA (Polylactic Acid), Polyimide
- Certificates
- ISO 50001 (Energy Management)
- Founded
- 1960
- Industries
- Packaging industry/Film manufacturers, Plastics processing, Battery/Energy storage industry, Electronics/E-mobility, Renewable energies, Automotive
- 01
Engineering and Design
- 02
Extrusion (single-/twin-screw/cascade extruders)
- 03
Film Casting
- 04
Longitudinal Stretching (MDO)
- 05
Transverse Stretching (TDO)
- 06
Pull-off Stands and Winders
- 07
Assembly and Commissioning
- 08
Digitalization (Brückner ONE®)
- 09
Service, Upgrades & Retrofits
Materials and Processes
PP (Polypropylene)
Basis for biaxially stretched packaging films with a broad application spectrum from food packaging to labels.
PET (Polyester)
Functional layer in multilayer packaging with good barrier and temperature properties.
Polyamide
For packaging of fatty, oily or strongly aromatic products as well as deep-freeze applications.
Polyethylene
Mono-material packaging based on available PE recycling streams.
UHMW-PE
Material for battery separator films with high puncture resistance.
PETG
For shrink films, labels and tamper-evidence applications.
Polyimide (PI)
High-temperature films for medical and technically demanding applications.
PTFE
Processing on high-temperature stretching lines at up to 400 °C.
PEEK
High-temperature polymer for special and technology applications.
PLA (Polylactic Acid)
Bio-based packaging film as an alternative to crude oil-based raw materials.
Bio-PE
Bio-based polyethylene for recycling-oriented packaging concepts.
Locations
Siegsdorf
DECompany headquarters/head office with technology centre (laboratory extruder, KARO® 5.0, pilot line, chemistry & film
- Materials
- PP, PET, PA, PE, UHMW-PE, PI, PTFE, PEEK and other plastics
- Multilayer laboratory extrusion line
- KARO® 5.0 laboratory stretching frame
- Pilot line for all stretching processes
- Chemistry & film laboratory
Dover, NH
USSales/Service (Brueckner Group USA Inc.)
Funza, Cundinamarca
COSales/Service (Brueckner Group Latin America S.A.S)
Topolcany
SKBranch office (Brueckner Slovakia s.r.o)
Navi Mumbai
INSales/Service (Brueckner Group India Pvt. Ltd.)
Rayong
THSales/Service (Brueckner Group Asia-Pacific Co. Ltd.)
Suzhou
CNSales/Service/Manufacturing (Brueckner Group China Co., Ltd)
Tokyo
JPSales representative office (via Berndorf Band Japan Co.,Ltd)
Lines and Line Technology
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| BOPP film stretching line (sequential)Plastics | – | 12.0 m working width | – | – | PP (polypropylene) |
| BOPP film stretching line (simultaneous, LISIM®)Plastics | – | 8.7 m | – | – | PP (polypropylene) |
| BOPET film stretching line (sequential)Plastics | – | 10.5 m | – | – | PET (polyester) |
| BOPA film stretching line (sequential/simultaneous)Plastics | – | 8.4 m sequential / 7.4 m simultaneous | – | – | Polyamide (PA) |
| BOPE film stretching linePlastics | – | – | – | – | PE (polyethylene) |
| Lines for battery separator films (BSF)Plastics | – | 8.7 m film width | – | – | UHMW-PE (ultra-high molecular weight polyethylene) |
| BOPP capacitor film lines (sequential/simultaneous)Plastics | – | 8.5 m | – | – | PP (polypropylene) |
| Lines for Composite Current Collector Films (CCCF)Plastics | – | 6.4 m | – | – | PET, PP |
| High-temperature film stretching lines (up to 500 °C)Plastics | – | 2.15 m | – | – | PTFE, PI (polyimide), PEEK, PVDF, PMMA, PPS, COC |
| BOPET optical film lines (cleanroom, coating)Plastics | – | 6.8 m | – | – | PET (polyester) |
| BOPET industrial film lines (TTR, release, backsheet)Plastics | – | 8.7 m | – | – | PET (polyester) |
| Shrink film lines (PETG/polyolefin sleeves)Plastics | – | – | – | – | PETG, PET, polyolefins |
| Lines for biopolymer films (BOPLA, Bio-PE, PEF, PHA)Plastics | – | – | – | – | PLA, Bio-PE, PEF, PHA, cellophane |
| Monoaxial stretchingPlastics | – | – | – | – | PP, PET, PE |
| Sequential biaxial stretching (MDO/TDO)Plastics | – | – | – | – | PP, PET, PA, PE |
| Simultaneous biaxial stretching (LISIM®)Plastics | – | – | – | – | PP, PET, PA |
| Extrusion (single-/twin-screw/cascade extruders)Plastics | – | – | – | – | plastic granulates |
| Direct Flake Dosing+ (DFD+) – regrind feed-in up to 30 %Plastics | – | – | – | – | PP |
| Laboratory stretching frame service (mono-/biaxial, sequential & simultaneous)Plastics | – | – | – | – | plastics, biopolymers |
| R&D/technology centre: raw material testing, sample production, small seriesEngineering | – | – | – | – | plastics |
| Upgrades, retrofits, refurbishments & service for film stretching linesEngineering | – | – | – | – | – |
14 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| BOPP film stretching line | Brückner Maschinenbau Sequential 12.0 m | – | 12 m working width, 700 m/min, 90,300 tpa, 12–60 µm | – | Siegsdorf (technology centre) |
| BOPP film stretching line | Brückner Maschinenbau LISIM® Simultaneous 8.7 m | – | 8.7 m, 400 m/min, 30,000 tpa, 12–50 µm | – | – |
| BOPET film stretching line | Brückner Maschinenbau Sequential / Sliding chain 10.5 m | – | 10.5 m, 700 m/min, 59,040 tpa, 8–36 µm | – | – |
| BOPA film stretching line | Brückner Maschinenbau Simultaneous 7.4 m / Sequential 8.7 m | – | 7.4/8.7 m, 350/340 m/min | – | – |
| Battery separator film line (BSF) | Brückner Maschinenbau Sequential 8.7 m | – | 8.7 m film width, 120 m/min, 500 million m²/a, 5–20 µm | – | – |
| BOPP capacitor film line | Brückner Maschinenbau Sequential 8.5 m | – | 8.5 m, 350 m/min, 6–12 µm | – | – |
| CCCF line (current collector films) | Brückner Maschinenbau PET Sequential 5.8 m / PET+PP Simultaneous 6.4 m | – | 5.8–6.4 m, up to 450 m/min, 1.6–8.0 µm | – | – |
| High-temperature film stretching line | Brückner Maschinenbau PI/PTFE Lines | – | 2.0–2.15 m working width; PTFE: 400 °C, 80 m/min; PI: 500 °C, 45 m/min | – | – |
| BOPET optical film line | Brückner Maschinenbau | – | 5.8–6.8 m, 330 m/min, 12–400 µm, cleanroom | – | – |
| BOPET industrial film line | Brückner Maschinenbau | – | 5.8–8.7 m, 150–515 m/min, 3–400 µm | – | – |
| Laboratory stretching frame | Brückner Maschinenbau KARO® 5.0 | – | Stretch ratio up to 1:10.4, max. specimen 750x750 mm, 20–5,000 µm, 1–700 %/s, 300 °C (HT 400 °C), | – | Siegsdorf, Dover, Suzhou |
| Multilayer laboratory extrusion line | Brückner Maschinenbau | – | 2 twin-screw + 1 single-screw extruder, melt temperature up to 400 °C, die 270/350 mm, up to 3 | – | Siegsdorf |
| Pilot line (film stretching) | Brückner Maschinenbau | – | all stretching processes (MD, TD, sequential, simultaneous) | – | Siegsdorf |
| Small Production Line (SPL) | Brückner Maschinenbau SPL | – | small series production, pre-assembled | – | – |
Additional services
Reference customers
Quality
High quality requirements for design, manufacturing and operation; qualification of contract-manufactured parts in the first sample process under series conditions incl. assessment of process capability. An energy management system according to ISO 50001 has been introduced at the Siegsdorf site.
| Evidence | Siegsdorf |
|---|---|
| ISO 50001 (Energy Management) |
History
- 1960
Company founded; since then development of technologies for film stretching
- ca. 1990er
Development of the KARO laboratory stretching frame, later an independent product with over 80 installed machines
- 2024
Supplementation of the energy supply at the Siegsdorf site with photovoltaic systems with 505 kWp on the parking decks