Un cui din lemn de fag care se lipește singur de materialul în care intră.
Nu e metaforă. E Lignoloc — inventat de BECK Fastening în 2014, primul cui din lemn din lume, folosit azi în construcții reale, de la pereți cu cadru din lemn la CLT fără adeziv.
Cum funcționează? Cuiul e din furnir de fag comprimat. Când îl tragi cu pistolul pneumatic, suprafața lui ajunge la 200°C într-o fracțiune de secundă. Căldura activează lignina din cui și din lemnul în care pătrunde. Se creează o legătură chimică. Cuiul se răcește. Gata — fără metal, fără preforare, fără adeziv.
La DACH + HOLZ International 2026, Stefan Siemers, Director R&D la BECK, ne-a arătat tot ecosistemul: trei dimensiuni de pistoale pneumatice, capete automate de batut cuie pentru linii de tip Weinmann, și o serie de mostre de pereți construiți de partenerii lor — Woodbloc, Chiemgauer Holzhaus, Prema, Nito.
Cel mai spectaculos exemplu? Nito face cărămizi din lemn. Șase piese de cherestea bătute cu Lignoloc. Le stivuiești ca pe zidărie și construiești o casă.
Show More Show Less View Video Transcript
0:00
You can imagine I know the complete
0:01
history of lonel nails. We started 12
0:03
years ago. In the very first beginning,
0:05
everybody was asking me, "Hey, what's
0:07
this? It's a wooden nail. What? But what
0:09
for?" Now I can tell it's for walls and
0:12
for construction.
0:18
Lignoc is the first wooden nail in the
0:21
world. We can say we invented ligon in
0:24
2014.
0:26
It was the idea to overcome the steel in
0:29
the fastening world. Lignalog is based
0:32
on compressed beachwood and you can use
0:35
it as a nail. It's working basically
0:37
like a nail. You can use it as any nail.
0:39
What we have as a different is we have
0:42
no metal inside. We have only this
0:44
compressed beach wood. When you drive
0:46
this nail with a platic nail gun, the
0:49
nail becomes warm. When the nail enters
0:51
the wood with very high speed, it
0:53
becomes warm on the surface. up to 200°
0:57
centigrade. And this heat activates the
1:01
lignine inside the nail and inside the
1:03
timber where you're shooting in. And
1:05
this makes a kind of combination. When
1:07
the nail stops at the end position, it
1:09
cools down immediately. Everything
1:12
happens in a very short portion of a
1:14
second. And then you have a very strong
1:16
bond between the nail and the
1:18
surrounding. We have 80% of beachwood
1:21
and a portion of 20% of phenolic resin.
1:24
We have people who think this is pure
1:26
wood. It's not pure wood. We need this
1:28
small portion of resin inside because of
1:31
fungi. When the nail is in contact with
1:34
water or moisture, fungi can come into
1:37
the material and the material would rot.
1:40
And to avoid this rotting in the nail,
1:42
we have this infiltration of a little
1:44
portion of this phenolic resin. And this
1:46
phenolic resin also makes the system
1:48
very very strong. The nail consists of
1:51
veneer layers. We have compressed veneer
1:54
layers only of top quality and the resin
1:57
bonds everything together after the
1:59
compression. We have different
2:01
dimensions of the nail for the biggest
2:03
nail has a dimension of 4.7 diameter and
2:07
a maximum length of 90 mm. And this nail
2:12
can only be shot in the big nail gun.
2:15
This is our F60.
2:17
In this nail gun, we can also shoot the
2:19
leg with heads. You can see when we open
2:21
the tool
2:26
we have the nails with a head inside.
2:28
This nails with head. We can offer in
2:30
two dimension in 58 mm and in 78 mm the
2:35
other lengths. And this tool can shoot
2:37
the nails with head and without head.
2:39
Talking about the diameter of 4.7.
2:43
If we go to smaller nails
2:46
and this is the next dimension we have.
2:48
This is a F44
2:50
and the F44 can shoot nails of a
2:53
diameter of 3.7 and a maximum length of
2:56
55 mm. And for the joiners, we have a
3:00
new tool now. This is the smallest one.
3:03
This is our lignal lock tool for very
3:05
very small lilock nails up to 25 mm very
3:08
short. We have a lot of carpenters
3:10
asking for automation especially when
3:12
you're using a so-called Vineman bridge.
3:15
You have a table and you want to produce
3:17
your walls in bigger quantities, you
3:21
need automation. And for this
3:22
automation, we have our so-called heads.
3:25
A head is a full automatic nailing gun
3:28
that is activated by electric impulse
3:30
and the shooting very very fast. This is
3:32
this nailing head. We have a big
3:34
quantity of nails in the magazine. When
3:36
we take the small ones, the 3.7 mm,
3:40
there are 850 nails inside. And when we
3:43
talk about the bigger ones, oh, it's
3:45
damaged.
3:47
Unfortunately, this was a coil of the
3:49
bigger one. We have 400 nails on this
3:51
coil. You can see here are the
3:53
connectors, electric connectors for the
3:55
activation, for the sensors to run this
3:58
tool. We have some very interesting wall
4:01
samples here because many customers are
4:03
asking now, what are you doing with this
4:05
legal lock? It's a nail. Yes, it's only
4:06
a nail, but you can use this nail for
4:08
construction. This is a stud framing
4:10
wall example and the stud framing was
4:13
cladded with three layer panels
4:16
and these panels are nailed visibly with
4:19
vignal lock. It means if the house
4:22
builder has customers and these
4:24
customers love wood but they want to see
4:26
the wood in their house. You can do it
4:28
like this. You can show the nails
4:30
directly. You can show the fastening
4:32
pattern how it works. If you don't want
4:34
to see it, you can also use Gibson fiber
4:37
boards. This is all included into our
4:40
approval. Lalo nail has an approval for
4:44
static construction of wall elements for
4:47
stud framing. When we turn the wall
4:48
around,
4:51
we can see another possible material.
4:54
This is MDF
4:56
also allowed to use as plywood and OSB.
5:00
We are allowed to use OSB for
5:02
construction. Here you can see this kind
5:05
of cladding. This is a typical jingle
5:08
design using in the Alp regions. Very
5:11
nice connected with the small legalog
5:13
nails with the very small ones. We can
5:16
see other examples. This for example
5:20
is NLT. This is board on board on board
5:23
all connected with nails. You can use
5:26
this as a ceiling flat or as a wall.
5:30
This is not in included into our
5:32
approval but we have customers that have
5:35
approvals for this. This is the company
5:36
Prima for example. Here you see another
5:39
example. This is a customer of us. The
5:41
company wood block. You turn around.
5:44
This is another hall. This is CLT but
5:47
without glue. They make CLT crosswise
5:50
orientated boards connected only with
5:53
nails. Only with nails. This is the
5:55
visible side. You see nothing. And when
5:58
we look take a look at the other side
6:00
you can see all the nails.
6:02
We need approximately 78 nails per
6:06
square meter to build this wall. The
6:08
benefit is this is easy. This is no
6:10
glue. You can cut everywhere. You have
6:13
all possibilities to work with this one.
6:16
This is a wall from a customer
6:18
from
6:20
Kim Holtz house. It's a very massive
6:22
construction you can see and they are
6:25
attached with nails. The last but not
6:28
least very good idea is our partner Neto
6:33
and what they doing they're making
6:35
bricks small bricks
6:37
it's like masonry you can use these
6:39
small bricks and build a house and all
6:41
these bricks are also nailed together
6:44
with econom brick is made out of six
6:48
piece of timber shooting together with
6:50
our econom and we are very proud that we
6:53
have these partners here in our booth
6:55
this is also very nice to See this is
6:58
something when we are never inside the
7:00
wood but when we make the cross-section
7:01
and cut through you can see the nail and
7:06
around the nail you can see this dark I
7:08
say corona and this corona is the heat
7:11
zone this is where the temperature
7:13
influences the lignine to stick together
7:16
somehow the dark corona is the mixture
7:19
of the compression because the nail you
7:21
don't have to pre-drill because many
7:22
people ask me do you have to pre-drill
7:24
no you can shoot directly into the
7:26
timber without pre-drilling. And because
7:28
of this compression of the surrounding
7:31
material and the heat influence, you can
7:33
see this dark zone.
Construction & Maintenance
Building Materials & Supplies
Jobs & Education
Civil Engineering

