Metal joining without fasteners

What is clinching? The clinching process is a method of assembling sheet metal without welding or fasteners. With this joining technique, metal parts are deformed locally without the use of any consumables. It creates an interlocking of two or more metal layers. Painted or coated metal sheets can also be joined by this method without damaging the surface. The RIVCLINCH® technology is a cost-effective, environmentally friendly method of joining steel and stainless steel sheets, as well as aluminum and/or non-ferrous metals. Deformation of the sheets by compression between punch and die: 1) After...

Our comprehensive hand tools and modular systems provide you with the possibility to use clinching technology in your business with moderate investment costs. ■ Short payback thanks to high productivity, long lasting tooling, very low energy consumption and the absence of any consumables ■ Plug and play systems: light weight and modular equipment for manual or robotic production ■ Friendly working environment: No sparks, no fumes, no heating, no cooling, no solvent Economic Efficient Ecological ■ No consumable items ■ Very low power consumption ■ No cooling or electrical installation needed ■...

Joinable materials Typical materials which can be clinched include: ■ Low carbon and micro-alloyed steels ■ Zinc-coated, organic coated and pre-painted steels ■ Lightweight materials, such as ductile aluminium alloys Dissimilar material combinations can also be clinched, for example steel to aluminium. Standard Special Material of sheets Aluminium Copper Mild Steel Up to Grade 304 (Tensile strength 500 MPa) Stainless Steel Total thickness of sheets (T) 100 kN (single tool) 300 kN (multiple tooling) RIVCLINCH® joint point geometry The heart of our expertise stands in the clinching joint. Depending...

RIVCLINCH® – Portable or standalone machine selection The tool kits Toolkit selection The central component of the RIVCLINCH® joining system is the tooling, or “tool kit”. Selecting the tooling is the first step involved when studying a new clinching application, since it will determine the pressing force and therefore the size of the clinching force unit and work head. Our RIVCLINCH® tools are available for round clinch joints (SR) with nominal diameters of 3, 4, 5, 6, 7, 8 and 10 mm and rectangular point joints (ST) with nominal widths of 3, 4, 4.3, 5 and 6 mm. Non standard dimensions are generally...

Small edges (FS series – Air to oil driven) Ideal for cabinets, vending machines, freezers, ventilation and many other domains Air to oil driven with booster. Short stroke, light weight and fast tools for joining edges and flat panels over short depths. Medium range (IP Series – Fully pneumatic) Medium range jaw opening, fully air driven. For the assembly of profiles or folded edges which require a larger jaw opening. The quick and safe closing jaw of the IP models is a perfect solution for such products. Large structures (PASS Series) Various C’frame dimensions and geometries can be supplied...

A range of autonomous, lightweight and ergonomic pneumatic portable tools, particularly for the assembly of lar-ge parts. The automatic opening/closing system of the jaw by pneumatic cylinder guarantees an optimal safety of the operator. Its installation is very easy: just connect the machine to the compressed air network at 6 Bar using the quick coupling. There is no hydraulic and electric hose. Technical data Total weight Cycle time Jaws opening Max. total sheet thickness, stainless steel Max. total sheet thickness, mild steel Light weight and fast tools for joining edges and flat panels. Convenient...

BULLHOFFRIVCLINCH® 4006 P50 PASSCost effective, multi-purpose clinching machine A wide range of patented RIVCLINCH® tool are available for this machine, allowing to join thin sheet as well as thick material up to 6 mm total thickness and large opening allowing most combination of materials such as mild steel, aluminium and stainless steel. Due to its long and thin lower arm, this unit is perfect to join metal parts for a large number of applications in the Building sector, HVAC, Appliances, Vehicles, Furniture, Electric, Roofing and many other sectors. The pre-stroke is pneumatic and can be activated...

RIVCLINCH® – Tailor-made Our clinching solutions can be portable, stand alone, automatic or robot mounted also with process control. With more than forty years of experience, Bollhoff Attexor SA engineering team will assist you in the development of your individual process solution. Modular C-FRAMES A range of powerful workheads, portable or stationary operating by compressed air booster. We offer a wide range of C-frames dimensions with a depth of up to 1100 mm to suit applications in any industry and in the automotive sector. Our C-frames are equipped with the PASS system (Passive Approach...

Applications Our handtools or modular solutions meet the high demands of the industries in many fields of applications. Building Technology ■ Garage doors ■ Exterior doors / interior doors ■ Ovens / cookers / range cookers ■ Battery heat exchanger - Roof frame

The air supply must be dry, filtered and regulated, with a minimum size of %” for ensuring the shortest possible cycle time. All the RIVCLINCH® systems are designed for operation without lubricator on the air preparation unit. ■ Pivoting or 2 axis rail ■ Separate fixations for booster and balancer ■ Vertical suspension mandatory for all work area ■ Security cables on all items Punch with stripper Hose package 2 m (hydraulic and pneumatic hoses in protective conduit) Well balanced in all positions by means of a gyroscopic suspension, ball bearing mounted for easy handling. The rotating axis is...

Installation of a modular clinching solution The systems are composed of cost effective standard hydraulic work heads, powered by air-to-oil pressure boosters simply connected to compressed air, for unlimited combinations of force unit capacity, stroke length, C-frame depth and work heads. Powered by air-to-oil pressure boosters Pressure gauge Cost effective standard hydraulic workheads Sliding support With many of our hand tools, the workhead without handle can also be used in automated production.