Another quantum leap | FASTENER EURASIA MAGAZINE
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Böllhoff continues to make product history and presents the next development stage of the established HELICOIL thread technology.

The time has come. Böllhoff continues to make product history and presents the next development stage of the established HELICOIL thread technology.
How is it possible that a product which is celebrating its 65th birthday this year becomes even more intelligent? You combine the functions of the HELICOIL Plus and the HELICOIL Tangfree, dye it blue and give it a tang that does not have to be broken off. The innovation: The installation mandrel bends it backward during spinning-off and then compresses it. Tang break and tang removal are not required.
A smart idea which in the end also inspired its name: HELICOIL Smart. It represents the starting signal for the new generation of thread technology for high-strength joints.

This thread insert, which is made from a wire with rhombic profile, is also formed into an elastic spiral. As to the Free Running version, thread by thread it is a completely free running coarse thread. The result is a true-to-gauge internal thread including the last thread which is in every case threadable.

However, during all those years, the heart of the functionality has remained unchanged. Then, as now, the thread insert has been creating high-strength joints in low-strength materials such as aluminium, magnesium and fibre-reinforced plastics like carbon fibre composites by transferring forces from flank to flank into the holding thread.
For increased quality and value – whether for thread reinforcement or repair. The special thread start, which has been adapted from the HELICOIL Plus, allows to position it like a screw and screw it in.


Driving innovation

To screw in the thread insert, all you need is the Smart installation mandrel: a mandrel with two functions – 2 in 1. Very special is the blade position control. Upon screwing-in, the blade has a pull-in function, whereas upon screwing-out, it turns into a bending and compression tool. This enables an easy and quick installation in one single process step, whether manually or fully automated.

Böllhoff never loses economic efficiency out of sight so that also the pneumatic installation tools are constantly being further developed. The solutions of the most recent generation convince through high flexibility and fast and reliable processing (M4 to M12).

Combined with the respective installation tools, the current innovation stage in the HELICOIL technology is a perfect addition to the HELICOIL product family. Like all stages of the HELICOIL evolution, the Smart system is also highly reliable.


Taking a look back

65 years ago, Böllhoff started producing the HELICOIL which, like no other, substantially influenced the rise of the family business. Today, the product brand is world-famous and the market leader in thread inserts in the US, Latin America and Europe. A stainless steel thread insert has been conquering the world and still is. For 65 years, it has been an original like no other.

Radial engines for aircrafts made from grey cast iron showed high wear on screw joints. Those engines, already back in 1938, had been the incentive to develop the thread reinforcements which were patented as HELICOIL. From 1954, Böllhoff produced the HELICOIL thread insert under license. A step with many others to follow in that same direction, since in 1954 the family business set up their own production. Until then, the company had only been involved in the wholesale trade.


Global and local

The Böllhoff network consisting of 45 companies at 39 locations in 24 countries guarantees local expertise. Böllhoff customers expect global presence in combination with short lead times and distances. That is why the Böllhoff Group looks after the international customers in important industry markets in close partnerships with representatives and merchants. As a leading international company in the fastening and assembly technology, the Böllhoff Group is therefore represented in all important markets.

Author: Annette Löwen, Leader Marketing FAT Germany at Böllhoff Verbindungstechnik GmbH