Nawaid Scientific Traders
Telephone +92-21-36702034
Fax +92-21-36626398
Email Address
HAVER Test Sieves
HAVER Test Sieves are fabricated according to the valid standards: ISO 565, DIN ISO 3310, ASTM E 11, BS 410, AFNOR, ISO 5223 etc.

Our "International Test Sieve Comparison Table (pdf)" gives a general idea.

HAVER Test Sieves are supplied with woven wire cloth, perforated metal plates or electroformed sheets.

HAVER Test Sieves are supplied in all current diameters from 76.2 mm to 400 mm. Test Sieves with square frames made from beech wood are available with 300 mm and 500 mm side length.

The following pages show some of our standard sizes and frames.

Sieve bottoms (woven wire cloth or screens, perforated metal plates or electroformed sheets) are fixed to the tension ring by soldering, welding or using adhesives. These manufacturing procedures have been developed by our company. The tension ring is pressed into the frame and bonded with it, using a special adhesive. This two-part construction gives the test sieve its high stability and guarantees a good service life with perfect operation.

Our fabrication is subject to high quality controls as documented in our certified Quality Management Assurance System according to DIN EN ISO 9001. Each test sieve is delivered with a Certificate of Compliance version 2.1 according to DIN EN 10204.

If requested, an inspection certificate according to EN 10204 3.1 can also be provided.
Haver Boecker

HAVER Test Sieves

Thumbnail 1

Hirshmann Laboratory
Site Navigation
About Us
Contact Us
Copyright 2010 Nawaid Scientific Traders All Right Reserved.  Design & Developed by