Catches for tighten sieves
For best feed classification results and maximum durability, the sieve needs to be attached to the screen very tightly. Depending on the mode of tightening and the wire thickness, tightened sieves could be equipped with different kinds of catches.
Designations of the folded sieves with catches
Sieve panel with catches for traverse tightening:
- Outer dimension of the catches – ZRZ
- Length of the catches – DZ
- Width of the sieve – S
The ZRZ dimension should be 30 – 40 mm smaller than the inner width of the sieve riddle.
If another sieve panel has to be mounted, the S dimension must be bigger than the DZ dimension.
Example designation:
Sieve with catches for transverse tightening:
- Single – notch JL25 made of spring steel of the following dimensions:
- DZ = 1000 mm,
- ZRZ = 1170 mm, equipped with two catches Z3,
- S = 1030 mm (dimension given in case of sieves mounted by lap joint).
- SINGLE-NOTCH JL25 – ZRZ1170 – DZ1000 – S1030 – 2xZ3
Sieve panel with catches for longwise tightening:
- Inner dimension of the catch – WRZ
- Length of the catches – DZ
- Width of the sieve – S
The length of the DZ catches should be 30 – 40 mm smaller than the inner width of the screen riddle.
If the catch is shorter than the sieve width, then the client should specify the S dimension when placing the order.
Example designation:
The sieve with catches for lengthwise tightening:
- Multi-notch sieve made of spring steel WL25 of the following dimensions:
- WRZ = 2500 mm
- DZ = 960 mm equipped with to catches Z1
- MULTI-NOTCH SIEVE WL25 – WRZ2500 – DZ960 – 2xZ1