Buss AG

Buss AG Designed from the process. Built for results. You know us as BUSS AG. The decisive last step in a continuous process chain. Excellence in Process Technologies.

BUSSLIST Group combines three process technologies covering the most demanding stages of material processing —from high-viscosity reactions & temperature-sensitive compounding to precise solidification. From April 10, 2026, this is the home of BUSSLIST Group – and the place to follow everything we do next. BUSSLIST Group unites three specialized process technology companies under one name: LIST Te

chnology AG, BUSS AG and BBA Innova AG. Together, we cover some of the most demanding steps in process engineering – from high-viscosity reactions to temperature-sensitive compounding to cooling and solidification.

◼️ LIST KneaderReactor Technology – since 1966, enabling continuous high-viscosity processing, reactions, devolatilization, drying, crystallization, desublimation and dissolving. Where other technologies reach their limits, the LIST KneaderReactor Technology delivers.

◼️ BUSS Co-Kneader Technology – the original since 1945, compounding continuous highly-filled, temperature- or shear-sensitive materials with a precision that twin-screw extruders cannot match. More than 3,500 systems installed worldwide.

◼️ BBA Cooling Technology – more than 40 years of experience in precise cooling, solidifying and flaking of viscous materials. What unites us: decades of deep process knowledge, built through thousands of realized applications across the chemical, polymer, fiber, food, pharma and life science industries. BUSSLIST Group is part of the Process Solutions division of Jakob Müller Holding AG, a Swiss family-owned industrial group in its fifth generation. Headquartered in Arisdorf, Switzerland and with locations in the USA, Japan, South Korea and China, and installations on every continent.

As we are dedicated to enable true textile and fiber circularity –from waste to resource – we invite you to rethink with...
09/09/2026

As we are dedicated to enable true textile and fiber circularity –from waste to resource – we invite you to rethink with us what's possible for the future of fibres at Dornbirn-GFC 2026.

Cellulose fibers innovation and circularity have become more important than ever since resources for textile production call for more sustainability and the recycling of fibres and textiles aims to support a better waste management on our planet. Security of supply concerns join the urgency for sustainability.

Innovation requires readiness for new perspectives and pathways. And! It requires a technological partner who has the competence to scale from lab to worldscale.

That's where we come in.

📍 Meet us at Booth 12
Manuel Steiner and Roland Luchte show how LIST KneaderReactors act as technological enablers for circular Lyocell processing to a second Lyocell loop, and for next generation fibers (i.e. cellulose fibers from alternative biomasses).

Rethink Materials. Change Perspective.
Let's shape the next generation of fibre innovation together.

Decades later, they are still running side by side.During recent customer visits, we came across a remarkable reminder o...
02/09/2026

Decades later, they are still running side by side.

During recent customer visits, we came across a remarkable reminder of just how long-standing the connection between BUSS and BBA really is: BUSS Co-Kneaders installed decades ago are still running successfully alongside BBA Cooling Technology today.

In powder coating production, the two technologies each play a distinct role in the same process. BUSS Co-Kneader Technology compounds the melt. BBA Cooling Technology cools, solidifies and breaks the material into flakes.

What makes this particularly meaningful is not only the age of the equipment, but the shared process know-how behind it – built through decades of experience, customer applications and continuous collaboration.

Sometimes, the history of a partnership is best seen on the production floor.

31/08/2026

Almost four months of BUSSLIST Group. We asked Roman Häfliger, the former CEO of BBA, what has changed. Hear his answer for yourself, in which he also explains once again what’s behind the merger and what added value it creates for our customers.

Today, it’s clearer than ever what this merger into the BUSSLIST Group means for our customers: access to three technologies, combined know-how, and even more opportunities to find the right solution for individual needs.

Lyocell is designed to be an environmentally friendly cellulose fiber. Traditionally, its cellulose comes from wood. But...
24/08/2026

Lyocell is designed to be an environmentally friendly cellulose fiber. Traditionally, its cellulose comes from wood. But what if tomorrow's Lyocell could be made from discarded cotton textiles instead?

That's the goal of textile circularity—and a major opportunity for the textile industry.

Cotton consists of almost pure cellulose. Its longer polymer chains and narrower molecular weight distribution enable the production of regenerated fibers with higher tenacity.

At the same time, post-consumer cotton textiles represent one of the world's largest untapped cellulose resources. Today, global cotton production is around five times greater than the production of man-made cellulose fibers.

Unlocking this potential requires a dissolving technology capable of handling higher spinning dope viscosities while operating at industrial scale.

This is where LIST KneaderReactor Technology comes in.

With the LIST Kneader Reactor, recycled cotton can be continuously dissolved despite its higher dope viscosities and processed into high-quality cellulose spinning dope for the production of regenerated fibers with superior tenacity. The process is flexible, efficient, and scalable—transforming textile waste into a valuable raw material instead of letting it go to waste.

Lyocell 2.0 is about giving cellulose an almost endless life. We provide the process technology to help close the loop.

Gotten curious? Here's more:
➡️ LIST KneaderReactor Technology: https://busslist.com/list-kneader-reactor/
➡️ Lyocell 2.0: https://busslist.com/application/lyocell2-0/
➡️ Dissolving process technology: https://busslist.com/list-kneader-reactor/process-technology/dissolving/

The finishing step in synthetic rubber production has seen little innovation in decades. Steam stripping remains energy-...
20/08/2026

The finishing step in synthetic rubber production has seen little innovation in decades. Steam stripping remains energy-intensive, generates solvent-loaded wastewater, and exposes operators to VOC emissions. At the same time, EV tire requirements – lower rolling resistance, higher abrasion resistance – are pushing polymer grades that wet-process lines struggle to handle cleanly.

This is what our colleague Brad Yun, Managing Director of LIST Technology Korea Ltd. and Market Manager for Rubber, spoke about in his keynote at the "Innovations and Applications of Synthetic Rubber for Next-Generation High-Performance Tire" forum. He introduced LIST's 2-Step Direct Devolatilization Technology (DDT) as a next-generation alternative to conventional steam stripping:

DDT replaces the wet-process chain with a closed, continuous two-machine line – both built around the LIST KneaderReactor.
The first machine evaporates most of the solvent from the polymer solution. The second finishes the rubber to final specification. Mechanical energy from the kneader shafts and thermal energy from the heated housings do the work that steam and hot air do in a conventional line, but inside a closed system, without crumb slurry or open exposure.

Brad's keynote covered pilot data across more than 11 synthetic rubber grades – including SSBR, NdBR and BR – from a 24/7 two-month continuous campaign, along with the measured reductions in steam consumption, wastewater generation, and specific energy demand versus conventional finishing lines.

Curious about the specifics? Drop your questions in the comments – Brad and the BUSSLIST team will respond.

PS: Your next chance to listen to a key note speech by Brad is at IRC 2026 in Nagoya, Japan, on November 4, 2026.

Cooling equipment is often sold by numbers: throughput, cooling capacity, footprint. The best system, in that logic, is ...
07/08/2026

Cooling equipment is often sold by numbers: throughput, cooling capacity, footprint. The best system, in that logic, is the one that removes heat fastest at the lowest cost.

We approach material cooling differently. Others ask „how quickly can we drop the temperature?" – but we rather ask „what does the material do while it solidifies?" Or how it crystallizes. How it breaks. What particle sizes result. Whether the downstream process gets the powder, flake or granule it needs.

That's why BBA Cooling Technology doesn't stop at cooling capacity. We build cooling systems that match your material – because capacity alone doesn't determine what comes out the other end.

Cooling doesn't just remove heat. It shapes and defines the final product.

For our customers, a test center trial is rarely a one-off. It’s where a partnership begins.At the BUSS Co-Kneader Techn...
03/08/2026

For our customers, a test center trial is rarely a one-off. It’s where a partnership begins.

At the BUSS Co-Kneader Technology test centers in Pratteln and Shanghai, customers prove their compounding process on real pilot lines — from raw material to finished product — and stay with us long after commissioning.

Swipe through => How a trial becomes a partnership.

Excellence in Process Technologies.

Being responsible isn't a promise. It's a habit that works in three dimensions for us:First, we stand by what we promise...
31/07/2026

Being responsible isn't a promise. It's a habit that works in three dimensions for us:

First, we stand by what we promised – not only through commissioning, but across a BUSSLIST process machine's entire service life. Decades in, we're still the ones you call.

Second, we stay a reliable partner. Not just for spare parts and service, but for the questions that come up when a process needs to evolve, a material changes, a plant expands.

And third, when a project runs into something no one saw coming – a material behaving differently at scale, an interface no one anticipated, a spec that shifts mid-way – we don't stop at describing the problem. We take on the challenge to find the next step. Together with you.

We stand by what we promise.
For projects that work and partnerships that last.

Every HV cable runs on a quiet bet: that the insulation compounds will perform reliably for 40 years or longer. Layers o...
28/07/2026

Every HV cable runs on a quiet bet: that the insulation compounds will perform reliably for 40 years or longer. Layers only millimeters apart. Yet every layer asks something different of the compounding process.

🔎XLPE:
XLPE compounding is a controlled act of holding back. The peroxide has to be distributed homogeneously into the polymer, without providing enough energy to initiate crosslinking. That asks for
– tight temperature control across the entire process section
– thermocouple pins positioned wherever the process demands
– gentle melting of the LDPE without degrading the polymer

All features of our COMPEO series. The Co-Kneader operates without the localized shear peaks that other systems can produce. Those peaks can compromise temperature control, and any temperature excursion above or below the tolerated window is enough to damage the compounds internal stability. And the higher the voltage, the less the insulation forgives that.

🔎 Semi-conductives:
The semiconductive shields above and below the XLPE insulation layer depend on the aggregate structure of the conductive filler within the compound. Carbon black and graphite conduct electricity because of the way their particles form interconnected structures. Highly structured carbon black provides excellent electrical conductivity, but it requires gentle yet intensive mixing to preserve its structure while achieving agglomerate-free dispersion. This is essential for producing a smooth surface without compromising electrical conductivity.

Our Co-Kneader's answer:�– moderate, distributed shear instead of high-shear forcing�– repeated low-shear interfaces that disperse without destroying the filler structure�– homogeneous filler distribution, even at high loadings

These compounding advantages ensure consistent electrical conductivity and surface smoothness of the semiconductive shielding layers.

Three compounds. Two demands. One process technology that handles both – based on the same shaft principle, the same machine platform, and the same engineering logic.

Gotten curious? Here's more:
➡️ BUSS Co-Kneader Technology: https://busslist.com/buss-co-kneader/?mtm_campaign=busslist-brandlaunch
➡️ XLPE: https://busslist.com/application/peroxide-cross-linked-cable-compounds/?mtm_campaign=busslist-brandlaunch
➡️ Semi-conductive cable compounds: https://busslist.com/application/semiconductive-cable-compounds/?mtm_campaign=busslist-brandlaunch

Big congratulations to our BUSSLIST Customer Champions Daniel Stedtler, Mariano Toma and Tomislav Cavara! 🏆The BUSSLIST ...
27/07/2026

Big congratulations to our BUSSLIST Customer Champions Daniel Stedtler, Mariano Toma and Tomislav Cavara! 🏆

The BUSSLIST Customer Champion Award recognizes employees who make an outstanding contribution beyond the scope of their everyday responsibilities. Through extraordinary commitment, collaboration and a strong focus on delivering for our customers, they help turn demanding situations into successful outcomes.

Daniel, Mariano and Tomislav earned this recognition through their outstanding contribution to a customer project at our production site in Biel, Switzerland. Precision, welding expertise, machining and a deep understanding of temperature, distortion and dimensional accuracy … With the willingness to consistently go above and beyond to keep the project on track. Daniel and Mariano ensured the on-time completion of the shafts, while Tomislav took responsibility for the precision boring and final machining of the vessels. Their dedication helped maintain key project milestones, avoid delays, keep critical work in-house and reduce the need for costly external manufacturing.

Thank you, Daniel, Mariano and Tomislav, for your outstanding dedication and for demonstrating what it means to be a true Customer Champion. 👏

Adresse

Hohenrainstrasse 10
Pratteln
4133

Öffnungszeiten

Montag 09:00 - 17:00
Dienstag 09:00 - 17:00
Mittwoch 09:00 - 17:00
Donnerstag 09:00 - 17:00
Freitag 09:00 - 17:00

Telefon

+41618256600

Webseite

Benachrichtigungen

Lassen Sie sich von uns eine E-Mail senden und seien Sie der erste der Neuigkeiten und Aktionen von Buss AG erfährt. Ihre E-Mail-Adresse wird nicht für andere Zwecke verwendet und Sie können sich jederzeit abmelden.

Service Kontaktieren

Nachricht an Buss AG senden:

Verknüpfungen

Teilen