Standard our webs are equipped with rods of spring steel class C (DIN 17228). However we can also mount rods of hardened Boron steel, stainless steel or glass fibre reinforced polyester. After consultation with you, we can also use other materials so that the produced web will meet your expectations as good as possible.

Without using rod coverings we can create gaps with a minimum of 5mm. By using rod coverings we can reduce the gaps to 2mm.

 Holes distance

In determining the correct width of the sieve web, it is important that the rods have the correct “stokmaat”. This is the distance between the two outside rivet holes, C.T.C. When ordering loose rivet rods it is important that you mention the stokmaat as well as the distance between the holes in one end. Without further notice, we assume this distance to be 20mm in 50mm wide traction belts and 32mm in 60 or 75mm wide traction belts.
On request we can also make these distances 24 or 30mm.

Standard rivet rods are available in diameters 6, 7, 8, 9, 10, 11, 12, 13 and 15mm. To increase the conveying capacity of a sieve web, we can equip webs with cranked rods. These cranks are available in various hights, both up and down. (An often used construction is 2 down cranked rods, followed by 1 straight rod.)

To protect the product from damaging or to minimise the gap, rods can be covered.

Kinds of steel
For use in rough circumstances, for instance in stone separators, we can make the rods out of stronger materials. Here we use special steel (spring steel, class super C) or hardened Boron steel.

Special steel is harder and tougher than spring steel class C. Further it has all the properties of regular spring steel. Special steel is available in the diameters 10, 11 and 12mm.

Hardened boron steel is even harden and tougher than special steel. An advantage of boron steel is that it can be welded. After welding, the material must be hardened, which makes it impossible to weld on an existing web. Boron steel is available in the diameters 10, 11, 12 and 13mm.

Stainless steel is often used in water. All metals used in the sieve web are then of stainless steel. It is not possible to make a centre flattening in a stainless steel rod. If a centre belt is required, attachment onto the belt will be made with centre clips.

To save weight we can use rods out of glass fibre reinforced polyester. The glass fibres provide great tensile strength. A sieve web with these rods can weigh up to 50% less than a web with steel rods. Another advantage is that these rods don't rust.
Polyester rods are available in the diameters 6, 8 and 10mm.



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