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We can supply square, hexagonal hole and round hole perforated plate test sieve. These sieves are available in a wide range of diameter with apertures sizes ranging from 124 MM to 4 MM in square hole and 125 MM to 1 MM in round. Perforated plate sieves are in diameter sizes of 200, 300, 315, 350, 400 and 450 mm. Special specification test sieve can be customized as customers' requirement.
Materail:stainless steel board, aluminum board, cold and hot steel board,copperplate and fiberboard, plastic board and so on.
Frame height (full) : 1-3/4'' -- 2-5/8'' half : 1-1/4'' -- 1-5/8''
Sieves Feature:
- Good filtering .
- Corrosion resistance.
- Easy to clean.
- Long using life.
- Easy to use.
- Wide application.
  
There are mainly three kinds of perforated sieves. They are perforated grain sieves, mid-point test sieves and extra depth sieves.
- Perforated Grain Sieves
This kind of sieves are used by government agriculture sectors and grain organizations from all over the world to test gains and cereals grades. They are usually made of stainless steel or brass perforated plate for sieving mesh and the same material plate for the frame. Commonly diameter of the sieves are 200mm.
- Extra Depth Sieves
Extra Depth Sieves are perforated stainless steel sieves in extra depth. They are widely used in the construction and cement industries. The diameter size is commonly 450mm and the sieve depth is 300mm. Made from stainless steel perforated plate; the sieves are tough and rigid and ensures a long service life.
- Mid-Point Test Sieves
When a process requires a high level of repeatability, mid-points can be used on all sieve tests. However, the predominant application for the mid-point sieves are as master stack. A master stack is used to check and recalibrate sieves used in everyday testing. It can be also used for the screening of sand.
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