Advantages of PU ( Poly urethane ) conveyors .
- Hygienic easy to clean or wash
- Easy to replace
- Can be manufactured in any colours .Helps in process
- Joints are easily done in house
- Better for metal detection
- No major expansion or shrinkage's
Disadvantages of PU belts
- Costly
- Fails at times to carry products ( less friction )
- Problem on Oily substance
- Surface Cracking common .Entire belt has to be changed
- FDA approved belt are not readily available
Advantage Cotton belts
- Easy availability .
- Can be procured in bulk
- Cheaper alternative to PU
- Repairs can be done easily
- Provides impressions on products
- Carry all kind s of products due to its rough surface
- Few operations cotton webs are irreplaceable
Disadvantages of Cotton Belts
To be replaced in short period as it becomes unhygienic easily
- Joints and sides are to be stitched regularly. Repairs are common
- Could not be washed or cleaned . it has to be replaced after certain period
- Expansion and shrinkage's are erratic some times
- Web tracking is very common due to elongation and contraction
- metal detection is less on cotton belt surface
A bakery manager has to select the best option keeping in the view the cost , the products senstivity and quality .