Heads - Import export

According to the ARCO body-bound rivet the folding rivet forms a large upset head too. Thisguarantees an equal distribution of forces, so that especially plastics and other soft or vulnerable materials resist against cracking or pullthrough. Typically this rivet is used in all areas of industrial light weight constructions. As a result of the locked mandrel in the connection, the spread rivet is splash water resistant. VVG offers two different types – the standard split rivet and a high strength version with neoprene washer.

During the setting process, edges on the mandrel head cut the rivet shaft into four segments. These four segments then unfold on the component surface thus forming the large locking head. Once the mandrel reaches its predetermined breakload, the mandrel head falls out of the rivet body. The large locking head allows connecting soft or britt le components and helps transfer high tensile forces.ARCO body-bound blind rivets are preferably used for plastic or wood element assembly, caravan manufacturing and fastening of cladings.

Self-clinch studs are fasteners that have a serration under the head. At inserting into the metal sheet it presses the displaced material into the rivet ring to secure the fastener. Sheet metal fasteners with internal and external threads are especially suitable for working with thin metal sheets starting with 0.5 mm thickness. This reduces the thickness of the elements in general in favour of lower weight and less material. Aft er processing they are permanently connected to the base material. The screwed connecti ons can be removed aft erwards without risking displacement of the fastener. Through this the production processes are rationalized and secured.

SFM-PL folding blind rivet nuts are constructed for those applications where a high pull-out strength is requested. The slottedshaft makes the rivet nut split into four straps with a wide contact surface that guarantee an equal distribution of forces especially on plastics and other vulnerable materials. Furthermore this type offers a very big grip range! SFM-PL folding blind rivet nuts are for example used in all fields of vehicle manufacturing.

For the abandonment of Offshore structures special legal requirements apply. Tubes have to be deconstructed under the seabed. This requires special technologies. Our Downhole Cutting Heads (DCHs) can be inserted into tubes and casings over an umbilical from the working platform. Arriving at the destination they clamp in the tubes and perform a 360 degrees cut which severs the tube underneath the seabed. The DCH is pulled out and afterwards the pulling of the tube is possible. Cuttings can be performed up to 150 m (500 ft) deep and pipe sizes between 7” and 72” diameter, whereby the wall thickness can be up to 20” thick. For every requirement we offer the appropriate DCH. By extensions nearly every kind of pipe/tubing/casing can be cut.

Our travelling head grinding machines offer you the programs for pendulum grinding with roughing - finishing - spark out. They are designed to carry out a quick changeover of the grinding segments and workpieces. The easy programming is done by entering the parameters. Display of errors in plain text. Other important points include: — Program for creep feed grinding — Technology data management: 20 memory spaces for: Pendulum grinding, creep feed grinding — Electronic power measurement of the grinding motor: Automatic sparking out, Power control — Capacitive hardened glass Touchpanel — Touchpanel mounted on grinding carriage — Direction of rotation reversal of the grinding motor Type 8 with Siemens 840Dsl control