Böllhoff GmbH
About us
Böllhoff is a competence leader in 360° Joining Technology. As a family-run company, we have stood for long-term success through innovative capacity and local presence since 1877. We seek to understand the needs of our customers and deliver solutions to fit their requirements. We focus on innovative, sustainable and economical solutions along our customers’ entire value chain. Over 3,300 employees are shaping the future of joining technology – both at our headquarters in Bielefeld, Germany, and at our subsidiaries around the world.
Our broad range extends from standard screws to special fasteners and assembly systems. A wide range of services related to joining technology complete our portfolio, from testing of fasteners in our accredited laboratory to application-related advice and cost-effective delivery solutions.
Böllhoff is a fourth-generation family-run business. It is currently run by Wilhelm A. Böllhoff and Michael W. Böllhoff (managing partners), as well as Dr Cathrin Wesch-Potente, Dr Jens Bunte and Thomas Pixa.
Products & services
DIN and standard parts
We supply all standard screws, nuts, washers, and other elements—regardless of DIN, material, surface, and coating.
Comprehensive service in joining technology
Our joining technology – as individual as you are Whenever you need to join components, we are here to help. As the leading expert in 360° joining technology, we understand your needs and can find the conncections that best suit your requirements. Every industry is unique. We understand the specifics and work with you to develop tailor-made solutions.
Fully automatic joining
Universal material combinations are becoming increasingly important, especially in the development of modern vehicle and car body designs. RIVTAC® is particularly suitable for joining aluminium, steel, plastics and non-ferrous metals as well as for mixed joints, multilayer joints and hybrid joints of these materials. This innovative mechanical joining process utilises a tack – a nail-like auxiliary joining part, that is accelerated to a high speed and driven into the non-pre-punched parts. The ogival point of the tack displaces material. The speed, which can be controlled by means of the adjustable joining pressure, is dependent on the materials and component thicknesses. Due to the short-term increase in temperature in the joining zone, the parent material flows into the annular grooves on the shank of the tack. This achieves a high degree of form fit for the joined parts. The pressing and compression of the material – especially in the case of high-strength steel materials – results in a non-positive joint. An important condition for this method is sufficient stiffness of the joining parts so that they can resist the penetration impulse of the tack without major deformation.
Automated assembly systems for resistance element welding
WELTAC® relies on our proven RIVSET® Automation E processing systems. The highlights of WELTAC® Automation E at a glance: - Smart: modular and comprehensive machine designs - Quick: machine configuration via plug & play - Flexible: remote access to the control software - Powerful: fast high-performance CPU - Plug & play: mobile manual control unit for more than one control during commissioning - Process times ≤ 1.5 seconds/element (depending on the setting tool – also EH)
Threaded inserts automatic installation
The installation of HELICOIL® thread inserts is simple and economical because there are only a few basic rules to follow. For efficient installation, whether in individual applications or large series, there is a wide range of installation tools available—from manual to automated. Just as important as the high quality standard is the economical installation of HELICOIL® thread inserts. For this purpose, we offer modules for integration into automatic processes and complete systems.
Automating joining systems
The RIVCLINCH® joining system is a process for joining metal sheets by means of selective cold forming—without the use of fasteners or filler materials. Joining is achieved by interlocking two or more metal layers. The RIVCLINCH® technology is a cost-effective, environmentally friendly process for joining steel and stainless steel sheets, as well as aluminum and/or non-ferrous metals. We now also offer this efficient process in a fully automated version.
Automated self-pierce riveting systems
RIVSET® riveting systems include manual systems as well as systems for fully automated production. Our systems are designed for a wide range of applications and can be adapted to your specific production environments. The various system components, such as the power unit, rivet feed, tool, panel, and visualization (accessories), can be arranged flexibly and thus determine the system.
Automation for blind rivet nuts and screws
Our RIVKLE® setting heads enable automation of the processing of blind rivet nuts and screws. RIVKLE® feeding is carried out on vibratory spiral conveyors or other distribution systems. Process control is also integrated. RIVKLE® blind rivet nuts and screws with hexagonal shanks can be fed without any problems and processed in all spatial positions, even overhead.