03 Machinery and equipment for the plastics and rubber industries
03.02 Machinery and plant for processing
03.02.001 Extruders and extrusion lines
03.02.001.01.02 Twin screw extruders
Twin screw extruders
Product category: Single screw extruders
Dynamic mixing systems for melt modification allows customers with direct casting from PET condensation plants to establish a flexible modification of each PET film line for various applications up to 4 t/h.
3DD as a perfect mixing concept is an additional feature for highest mixing efficiency of single screw extruders. It is also available as inline-system for flexibilisation of polyester condensation plants. Additive feeding systems for master-batches and liquid additives are also available for adding colours and additives into the melt pass at various points of the polymer system.
Quality demanding products including film or manmade fibres require highly purified melt without gels and particles. Therefore, BB Engineering as a manufacturer of filtration systems for highest melt quality offers the suitable solution for many applications:
Long Life Filter (LLF) Non Stop Filter (NSF) Horizontal Candle Filter (HCF) Continuous Vertical Filter (CVF)
We offer various melt filtration systems like the Horizontal Candle Filter (HCF) series with filter areas between 0,1 m² and 1,5 m² for easy and quick change, the Long Life Filter (LLF) series with filter areas of up to 40 m², the Non Stop Filter (NSF) series based on LLF series for non-stop operation with filter areas of 2x40 m² and Continuous Vertical Filter (CVF) series for continuous operation with filter areas up to 2x8 m².
LLF and NSF as large area filtration systems are available as candle or disc type filters, HCF and CVF are equipped with candles.
The NSF filters are based on the LLF filters and are designed for continuous operation due to robust, well-proven polymer valve. The discs´ or candles´ filter media can be supplied as wire mesh or as metal fibre fleece with a filter fineness of up to 5 mu.
Preheating Cleaning System
In order to support customers in the field of filter cleaning, which ranges from opening used housings to finally cleaning and inspecting of the filter elements, a new extended pre-cleaning device based on BBE's preheating and draining station is under development.
Engineering and designing single screw extruders is one of the core competences of our company. The machines are based on the well-proven Barmag design. This means that today´s extruders contain over 40 years of experience in extruder design and our highly skilled design experts are continuously working on further developments to cover new challenges in extrusion.
We are able to supply a wide range of standard and customised solutions from small 30 mm feed extruders to large 360 mm output cascade systems.
The machinery is used in film extrusion lines such as main and co-extruders for BO-PET, BO-PP, BO-PA, PP- and PET-cast film and in spinning lines, e.g. the compact spinning system VarioFil.
Our parallel co-rotating twin screw extruders can be used for direct processing of polymers without the energy-intensive pre-drying process.
They are designed for venting applications like direct processing of PET or PA in film or spinning lines as well as processing of high volume raw materials like film strips or fibre waste from PET, PP or PA. Special extrusion systems for direct melt modification, e.g. PET with TiO2, are also available.
Our twin screw extruders have a modular design to adapt the barrel and screw design to the process conditions. A wide range of screw and barrel materials are available to cover a wide range of wear and/or corrosion intensive polymers.
The range of machine sizes comprises screw diameters from 45 mm to 120 mm with process lengths of up to 44D. Other sizes and lengths as well as customised machines can be supplied on request.
BB Engineering offers flexible compact high speed spinning lines (VarioFil) for the production of multifilament yarns out of PET, PA, PP or others or even combinations like PET/PA, for a wider titer range, for adding additives and colors or for fast product change from POY to FDY and back.
BB Engineering GmbH has been an innovative service provider in the sector of plastic machines and plant construction for more than 15 years now.
The BB Engineering GmbH was founded in 1997 as a joint venture between the Oerlikon Barmag branch of Oerlikon Textile GmbH & Co. KG and Brückner Group GmbH. The company is a reliable partner in the sector and employs more than 120 members of staff at the company location Remscheid - Lennep.
Our business is engineering, construction, design and manufacturing of machine components as well as complete machines for the plastic and textile industry. The services offered range from the design and planning phases through to the implementation of projects. All designs are modeled using our 3D software as a standard procedure. Innovation, quality and trust are our greatest strengths from which you will benefit.