Scrapers

Scrapers

Drop forged chains as well as double drag link chains can be equipped with plastic and/or steel scrapers. For heavy-duty use, either of these chains can be equipped with welded steel scrapers. With double drag link chains the outer link can also be L-bended. 

Chains with plastic scrapers have quite a few advantages. The plastic scrapers are made of wearresistant nylon and are flexible. The fact that the chain rests on the plastic scrapers eliminates the steel-on-steel contact, which leads to saving energy and a considerable noise reduction. Plastic scrapers are temperature resistant between -20 °C and + 70 °C. The special zytel scraper is temperature resistant up to +110 °C. VAV also offers glass fiber enforced plastic scrapers which are more durable and less flexible. On your request VAV can also deliver an FDA quality scraper. The following table shows the various different types of plastic scrapers, together with the corresponding chain.

The following table shows the various different types of plastic scrapers, together with the corresponding chain.

MeenemersIMG2

Plastic scrapers (parameters in mm)

Length x heightCc. distance
of the holes
Drop forged chain
pitch
Double drag link chain
plates
117 x 45 20 102, 125, 160 35x5
137 x 45 20 102, 125, 160 35x5
170 x 45 20 102, 125, 160 35x5
162 x 55* 25 - 45x6, 40x6
112 x 58* 30 142, 150 50x8
162 x 58*** 30 142, 150 50x8
212 x 58* 30 142, 150 50x8
262 x 58* 30 142, 150 50x8
300 x 58** 30 142, 150 50x8

* Also available in Zytel for higher temperature.
** Also available in glass fiber enforced scraper.
*** Also available in Zytel for higher temperature or FDA quality.

Advantages of plastic scrapers:

  • noise-reduced, 60 db(A) measured at a 1 m distance
  • low frictional resistance, saving up to 20 % of the energy
  • less costly, less wear and tear of the bottom plate and the chain
  • flexible, bendable under high pressure
  • eliminates the need for guiding and wearing strips
  • very quickly and easily assembled or replaced