SuperlaSieve Technology

SuperlaSieve technology - ‘Cleaner-by-Design’

All standard Test Sieve frames and pans die Stamped Components proper fit for easy nesting and ‘stacking’
Test Sieve frame is polished inside and out
Crevice and Epoxy Free construction!
No ink markings on the sieve cloth
No rivets on the inside surface of the test sieve frame
SuperlaSieve ‘Cleaner-by-Design’ technology is used for all sieve construction types – Pure Tin Solder, UV Adhesive, or Resistance welded
Test Sieves are identified in accordance with ASTM E11
Each test Test Sieve is supplied with a Certificate of Conformance
Each Test Sieve is individually boxed

Type of Construction

Pure Tin Soldered

Pure Tin Soldered

Pure tin solder is used to secure the sieve cloth to the underside of the sieve frame. Evidence of pure tin solder is virtually absent from the interior surfaces of the sieve.

Most Pharmaceutical, Food, and Beverage applications permit the use of test sieves fabricated using pure tin solder.

Pure tin solder can be used for most ‘wet sieving’ and ‘dry sieving’ applications.

Pure tin solder should not be used when temperatures are greater than 350^oF

Pure tin solder is not recommended for equipment exposed to caustic cleaning solutions or acid. Pure tin solder will break down over time. We recommend using a welded test sieve when these conditions exist.

UV Adhesive

UV Adhesive

UV Adhesive, a proprietary state-of-the-art polymeric adhesive is used to secure the sieve cloth to the underside of the sieve frame. It effectively seals the joint between the sieve cloth and the test sieve frame. Similar to the pure tin solder, it is virtually absent from the interior surfaces of the sieve.

The UV adhesive has been laboratory tested and certified to be in compliance with USP Biological Reactivity Tests in Vivo USP Plastics Class VI.

NOTE: UV adhesive test sieves are not the best choice if you’re looking for laboratory test sieves for ‘wet sieving, or for applications with significant humidity or moisture; as the adhesive bond between the sieve cloth and the test sieve frame can break down and become weak over time.

Welded Construction

Welded Construction

A welded test sieve has the sieve cloth continuously resistance spot welded to the underside of the sieve frame.

The individual spot welds are overlapped, no voids thus ensuring that all product passes through the sieve screen, not around it. The sieve cloth is welded directly to the sieve frame, no filler metal. Whether a coarse mesh or fine mesh all can be supplied in a welded construction.

Welded test sieves can be used for most ‘wet sieving’ and dry sieving’ applications. They are ideal for pharmaceutical applications where caustic cleaning requirements exist.