Every single test sieve is individually manufactured under the most stringent quality control procedures using only the finest materials. We use the most advanced computer scanning techniques to ensure precise test sieve apertures. Our skill and experience ensures you will not only receive a test sieve that looks and feels good, but one that offers a degree of accuracy second to none.
They are made with only the highest quality materials and are available in diameter sizes of 100, 200*, 300*, 400 or 450 mm as well as in 3, 8*, 12 or 18 inches.
Woven wire mesh sieves can be supplied with aperture sizes ranging from 125 mm down to 20 microns in full and half height versions.
They are available in frame materials of either stainless steel or brass (*200, 300mm and 8").
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Yongkun is your contact for all cases: simply because we offer you the right test sieve that complies with the standards for every screening task. Standard test sieves made out of stainless steel are just as much a part of our range as test sieves for grain analysis or test sieves with beechwood frames. Hand screening, conventional screening, dry or wet screening: Analyse bulk solids from 5 µm to 125 mm. |
Very accurate and extremely stable
All HAVER test sieves are manufactured in compliance with the current test sieve standards. They are all characterised by particular accuracy and stability
That is: You can always rely on our test sieves. High-quality frame materials, the extremely stable screen construction developed by us and careful workmanship guarantee a long service life and the perfect functioning of our test sieves.
WOVEN WIRE SIEVES
PRODUCT ADVANTAGES
- Precision frame (ensures consistent nestability)
- Precise aperture (in accordance with ISO 3310-1, ASTM E11 or other specifications)
- Natural fillet (free flowing of sample)
- Totally sealed (no crevice to lose material)
- Evenly tensioned mesh (ensures accurate analysis)
- Safe edge (big radius makes it comfortable to handle)
- Serial number (ensures full traceability)
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FEATURES
| Type of mesh |
woven wire |
| Diameter |
100 / 200* / 300* / 400 / 450 mm
3 / 8* / 12 / 18 inches |
| Mesh sizes |
125 mm - 20 µm |
| Frame material |
stainless steel / *brass |
| Mesh material |
stainless steel |
| Height |
full and half (200 / 300 mm
8 / 12 inches) height version |
PERFORATED PLATE SIEVES
Yongkun manufacture a wide range of perforated plate sieves for the many industries that require them. These are available in diameter sizes of 200*, 300*, 400 and 450 mm.Aperture sizes range from 125 mm to 4 mm in square hole and 125 mm to 1 mm in round hole sieves.Perforated plate sieves can be supplied in frame materials of stainless steel or brass (*200 and 300mm) and are all manufactured to the highest engineering standards to ensure quality and accuracy. Woven wire sieves and perforated plate sieves are available to every national and international standard.
PRODUCT ADVANTAGES
- Precision frame (ensures consistent nestability)
- Precise aperture (in accordance with ISO 3310-2, ASTM E323 or other specifications)
- Natural fillet (free flowing of sample)
- Totally sealed (no crevice to lose material)
- Evenly tensioned mesh (ensures accurate analysis)
- Safe edge (big radius makes it comfortable to handle)
- Serial number (ensures full traceability)
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FEATURES
| Type of medium |
perforated plate with square or round holes |
| Diameter |
200* / 300* / 400 / 450 mm |
| Aperture sizes |
125 - 1 mm round hole
125 - 4 mm square hole |
| Frame material |
stainless steel / *brass |
| Perforated plate material |
stainless steel / plated steel |
| Height |
full and half height version |
MICROPLATE SIEVESYongkun produce a range of microplate sieves made from electro-formed nickel plate in stainless steel frames of 100 mm or 200 mm diameter.
Yongkun microplate sieves feature unique self clearing apertures for the sizes from 75 to 5 microns. Microplate sieves are supplied with either round or square holes. Other sizes, sieve diameters and sieve depths can be supplied as required.
It is recommended that microplate sieves are used in conjunction with a liquid medium to assist the passage of extremely fine particles through the apertures. In certain cases where this is not possible it is often found that a compatible sieve shaker can speed up the analysis, while maintaining a high degree of accuracy.
PRODUCT ADVANTAGES
- Precision frame (ensures consistent nestability)
- Precise aperture (in accordance with ISO 3310, ASTM or other specifications)
- Natural fillet (free flowing of sample)
- Totally sealed (no crevice to lose material)
- Evenly tensioned mesh (ensures accurate analysis)
- Safe edge (big radius makes it comfortable to handle)
- Serial number (ensures full traceability)
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TECHNICAL DATA
| Type of mesh |
microplate |
| Diameter |
100 / 200 mm
3 / 8 inches |
| Mesh sizes |
200 µm - 5 µm |
| Frame material |
stainless steel |
| Mesh material |
electro-formed nickel plate |
| Height |
full and half height version |
WET WASHING SIEVES
Wet washing sieves are extremely useful where samples need to be separated with the help of liquids. These sieves are available in 200 mm or 8 inch diameter (4 or 8 inches deep), with brass or stainless steel frames.
Yongkun supplies wet washing sieves for a wide range of aperture sizes with optional support medium for fine mesh.
PRODUCT ADVANTAGES
- Precision frame (ensures consistent nestability)
- Precise aperture (in accordance with ISO 3310, ASTM or other specifications)
- Natural fillet (free flowing of sample)
- Totally sealed (no crevice to lose material)
- Evenly tensioned mesh (ensures accurate analysis)
- Safe edge (big radius makes it comfortable to handle)
- Serial number (ensures full traceability)
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TECHNICAL DATA
| Type of mesh |
woven wire |
| Diameter |
200 / 450 mm / 8 inches |
| Mesh sizes |
125 mm - 20 µm |
| Frame material |
stainless steel / brass |
| Mesh material |
stainless steel |
| Height |
100 / 200 mm
4 / 8 inches
300mm for 450 Dia. |
DIAMOND SIEVES
Diamond sieves are high precision measuring instruments specially manufactured to meet the strict requirements of the diamond industry. They are produced from stainless steel and offer a rapid and extremely accurate method of sizing.
Yongkun can currently supply stainless steel plate fitted with bezels in 8-inch diameter.
PRODUCT ADVANTAGES
- Precision frame (ensures consistent nestability)
- Precise aperture
- Natural fillet (free flowing of sample)
- Totally sealed (no crevice to lose material)
- Evenly tensioned mesh (ensures accurate analysis)
- Safe edge (big radius makes it comfortable to handle)
- Serial number (ensures full traceability)
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TECHNICAL DATA
| Type of mesh |
stainless steel plate fitted with bezels or test sieves |
| Diameter |
8 inch |
| Mesh sizes |
see order data |
| Frame material |
stainless steel |
| Mesh material |
stainless steel |
| Height |
2 inch |
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