Cosinus Slide®

The Cosinus Slide® joint is the showpiece in our product range. In our searching to develop the perfect expansion joint, we introduced a complete new jointing solution (patent pending) which is realizing the best load transfer system ever.The Cosinus Slide® joint has combined the Sinus Slide® solution with an unique technology of load bearing capacity of the floor without any dowel system.

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Technical data videos



Comunicazione sul brevetto europeo n° 2729619 e n° 2027340.

Siamo lieti di annunciare che in data 06/05/2015  l'ufficio brevetti europeo ha deciso di concedere un brevetto europeo n. 2729619 basato sulla domanda di brevetto europeo EP13708716 diretta al giunto Cosinus Slide e il 13/05/2015 ha deciso di concedere il brevetto europeo n. 2027340 basato sulla domanda di brevetto europeo EP06754306 rivolta alla soluzione di giunzione Sinus Slide in generale. Con queste decisioni, l'ufficio brevetti europeo riconosce le soluzioni innovative di HCJ nei giunti di dilatazione per pavimentazioni industriali.

The Cosinus Slide® joint is characterized by a stable double 2x5 mm Sinus steel plate on top opposed by a double Sinus steel plate on bottom. Instead of traditional anchor studs the joint is fixed in the concrete by a special wreathed continuous rebar system over the total length of the joint and with connections top and bottom. A small steel plate in the middle prevents overflowing of the concrete. 

Thanks to the Sinus-Cosinus geometrical shaped form of the joint and the concrete, load transfer is not realized by the joint (with dowels)  but by the floor itself.  That’s why we say the joint is the floor, the floor is the joint.  Each sinus corrugation on top is opposed by a cosinus corrugation underneath. These crossed sinus corrugated steel plates shape small vertical steel concrete columns over each other. The load bearing of these columns defines the load bearing capacity of the complete floor. The loads are transferred simultaneously and proportionally throughout and over the floor by those vertical Concrete Columns shaped and supported by the Sinus-Cosinus  geometry.  This unique load bearing capacity of the floor slab is calculated and proved for all kind of forklift traffic.

Profile height
max. profile height
Profile length
Slab thickness
Adjustable steel plate
Weight per profile
Weight per meter
115 150 2590 60 50 115-150 50 28.04 10.82
160 215 2590 80 75 160-215 75 36,06 13.92
205 300 2590 80 120 205-300 120 41.61 16.07


Practical Case Toyota

Cosinus Slide® video

Sinus Slide Simulation

Sinus Slide Principal

Sinus Slide joints

Communication on European patent n°2729619 and n°2027340. 

We are pleased to announce that the European patent office decided to grant on 06.05.2015 a European patent n° 2729619 based on the European patent application EP13708716 directed to the cosinus slide joint and also decided to grant on 13.05.2015 a European patent n°  2027340 based on the European patent application EP06754306 directed to the Sinus slide jointing solution in general. With this decisions the European patent office recognizes the innovative solutions of HCJ in expansion joints for industrial flooring.