Composites are used where high performance requirements are demanded. They are employed in most industries in ever-growing application areas. To meet market demands, customers must be able to follow technological trends in their respective applications, operate economically and sustainably. Competent and reliable partners and systems are crucial for this. The innovative BUSS Co-Kneader Technology comes into play where conventional compounding systems reach their limits, regardless of whether the material is in the form of pellets, powder, liquid, bales, flakes, or any other form.

Our Technological Strengths

BUSS Compounding Advantages

The many polymeric and other raw materials that require compounding present individual challenges for each process. The BUSS Kneader represents a specialized compounding system that offers flexible solutions for these challenges.

  • Control of the shear gap

  • Temperature control at every position

  • Intensive distributive mixing

  • Reactive compounding

  • Maximum process flexibility

  • Abrasion & corrosion resistance

BUSS around the world

Co-Kneaders in use

Trust in the reliability, durability, and flexibility of our BUSS Co-Kneaders. Our global network of our own locations and distribution partners allows you to find a contact near you.

Find your partner and your Co-Kneader now.

World map with an overview of all BUSS Kneaders in use worldwide. Japan over 200, China over 200, Europe over 1400, Asia over 400, America over 500, MEA over 200.

BUSS Co-Kneaders in use worldwide

  • Performance features

  • Plastic classes

Anode Paste

For the industrial manufacturing of aluminum, which is considered the most important metal with no iron content, so-called anode paste is of central importance.

Hot glue gun and hot glue strips

Hot Melt

Compared to classical adhesives, hot melt score with various features: the products can be processed fast and acquire the respective properties when they cool off without hardening for solvent-based or reaction for 2-component systems.

White car rims after powder coating

Powder coatings

Nowadays, powder coating is mostly understood to be thermoset coating powder, which is applied to surfaces via electrostatic application.

Bioplastic compound box for storing cereal

Bioplastic materials

Bioplastics have already existed for a very long time. The first industrially produced plastics were cellulose-based and produced industrially as of 1869 and casein, which was produced in large quantities at the beginning of the 20th century as so-called synthetic horn.

Suitcase consisting of polycarbonate (PC) compound basis

Polycarbonate compounds

The polycarbonate-based (PA) compounds belong to the group of technical plastics. The term “engineering plastics” is often used.

White PA gearwheels, manufactured on a compounding system

Polyamide compounds

The polyamide-based (PA) compounds belong to the group of technical plastics. The term “engineering plastics” is often used.

Fuse box with PET or PBT switches

PBT / PET compounds

The polymers PET and PBT belong to the polyester family. PET can both exist as amorphous molding material (PET A) and as partially crystalline material (PET C).

Injection filtration membranes as an example of fluororubber applications

Fluoropolymers

Fluoropolymers are undoubtedly part of the high-performance polymer family. The polymer polytetrafluoroethylene (PTFE) was discovered per chance by Plunkett at DuPont in 1938.

Satellite dishes consisting of highly-conductive compounds

Highly-conductive compounds

Compared to other materials, plastics have several advantages. However, they cannot be taken advantage of in certain application fields due to lacking conductivity.

Battery system

Battery Electrodes

The development and realization of rechargeable battery and battery systems with high energy density are important parts of the response to global trends as well as the UNO sustainability targets.

Airport paving as an application of bitumen mass

Bitumen

Bitumen is a thermoplastic material, this means that its viscosity is temperature-dependent: when heated, it passes continuously through all states from solid to viscous until it becomes thin between 150 °C and 200 °C.

Laminate samples show the diverse options provided by natural composite materials (NFC compounds)

Natural fiber-reinforced plastics

For many centuries, people used natural materials as primary materials. Wood was used for building houses and ships, flax and hemp fibre were processed as ropes and technical textiles such as sails and grain sacks.

Black car application of fiber-reinforced plastics (FRTP application)

FRTP fillers

The integration of fillers into a plastic matrix follows two basic targets: improved specific material properties of the compound, for example here breathable foils or films or sound-absorbing tubes and cost savings.

Electrostatically sensitive electronics can be protected with antistatic compounds.

Antistatic compounds

The effect known as triboelectric charging, for which a single contact suffices to charge the surface electrostatically, has the consequence that components often come out of the shaping machine statically charged.

Blue cable ends with insulation from silane cross-linked cable compounds which were produced using a BUSS compounder

Sioplas

By crosslinking the polyethylene (PEX stands for cross-linked PE), a thermoplastic material can be converted into a thermoset material. This can be used at considerably higher operating temperatures, has better mechanical properties, is more stable against organic fluids and often allows thinner wall thicknesses.

PVC cable compounds

Depending on the requirements profile, different plastics are used for manufacturing cable insulation with BUSS compounding systems. These include polyolefins, TPE, PPE, EEFE, PVA and naturally flexible PVC cable compounds.

Semicon

For medium-voltage (MV) and high-voltage (HV) cables, the cable insulation is surrounded by a concentric, semiconductive layer on the inside and outside.

XLPE insulation

Peroxidic cross-linked cable compounds are also referred to as PEX. The process was patented during the 1960s and has been used in the cable industry since then.

Pond tarp as an example of PIB compounding

Polyisobutylene

The plastic polyisobutylene (PIB) belongs to the olefin polymer family. It has been manufactured industrially since the 1930s and is produced within a wide viscosity range from oil-like to raw rubber-like masses.

Car door for the final processing of masterbatch compounds

Masterbatch

Today, the term masterbatch (MB) normally refers to a concentrate of colorants, additives or other ingredients for cleanly and easily achieving specific properties in the end application.

Power boxes consisting of heat-hardening plastics (thermosets)

Thermosets

The thermoset materials group, also referred to as duromers, is a group of plastics which can no longer be deformed after hardening. They are one of the three groups according to which polymers can be categorised.

EMC compounds in a circuit board

Epoxy resin molding compounds

Epoxy molding compounds have been known for their good electrical and mechanical properties as well as their excellent chemical and aging resistance for a long time.

Injection molds in beakers as an example of rigid PVC compounding

Gum base

In addition to the technical applications which are described on the corresponding pages, PIB is often used as an elastomer formulation component in the basic mass for chewing gum, the so-called gum base.

Sealing rings from silicone elastomers

Silicone elastomers

Due to their typical inorganic structure and organic residues, silicone structures are classified between inorganic and organic compounds. They are hybrids and have a unique range of properties not achieved by any other plastic.

Black car tyre manufactured from rubber compounds.

Rubber compounds

Excavations in Guatemala have shown that already in the 3rd century, the Maya knew rubber as a material. Since the 18th century, more and more applications have been described.

Rolled cable compounds manufactured using BUSS compounding technology

HFFR cable compounds

Polyolefins have excellent insulation properties, but are also highly flammable and must be made flame-retardant accordingly.

Black TPE conveyor belt

Thermoplastic elastomers

Thermoplastic elastomers (TPE) form a family of materials which combine the properties of elastomers with the recyclability and processing advantages of plastics.

Thin plastic cards consisting of a basis manufactured using BUSS calender processing systems

Calender feeding

Calender feeding is a system with several heated and polished chill-casting or steel rollers between which the melt, a pre-plasticized molding material from a BUSS Kneader or other materials are fed.

Luxurious vinyl tiles offer various options for different colors and surfaces.

Luxury Vinyl Tiles

In order to achieve these specific LVT properties, the floor covering is composed of several special layers. This is done classically by separate manufacturing of the compounds using BUSS Kneaders and corresponding calendering processes. The respective layers are compacted in the following process.

Soft PVC

During the first half of the 19th century, the creation of PVC from vinyl chloride (VC) was first described. By the time the Second World War ended, it was already the most-produced plastic. Today, industries such as medical technology rely on the unique properties of PVC-P.

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Rigid PVC

Thanks to its good mechanical, electrical and optical properties, as well as excellent chemical resistance, rigid PVC is very useful for many applications.

More about us

Process Engineering

BUSS provides extensive expertise for all steps in the compounding process. Thanks to a versatile network, we develop tailor-made plant concepts, including our own technologies for peripheral components as well as plant and process engineering.

Industries

Our compounding systems are used in numerous industries. They are the beginning of the manufacturing chain for countless everyday items and individual solutions for highly specialized industrial sectors.

Co-Kneader series

Four systems. One principle. The co-kneaders from BUSS stand for efficient, modular compounding solutions. Thanks to patented process technology with the oscillating screw shaft and precise temperature control, each series guarantees the highest product quality with maximum application versatility.