Alro logo Alro Steel was established in 1948 by Al and Robert Glick and has grown to include Alro Plastics, Alro Industrial Supply and Alro Metals Outlet.

Alro Plastics Product: Polystone® M MDT

Polystone® M MDT

Size and Availability:

Rod / Round:
- Diameters: 1/2”dia up to 8”dia
- Rod lengths: 10 foot long

Sheet / Plate:
- Thickness: 3/8”thick to 4”thick
- Sheet sizes: 48”x 120”

Polystone® M MDT  Polystone® M MDT
Polystone® M MDT – Detectable UHMW-PE for food processing and packaging machinery.

Food processors face the ever present risk of contamination finding its way into their product. The risks and potential financial losses can be significant if not detected early. Rochling Engineering Plastics now offers a ground breaking solution to this problem with the introduction of Polystone® M MDT.

The unique additives in this product allow it to be easily traced by standard metal detectors while continuing to provide the outstanding wear-resistance and sliding properties you would expect from Polystone® M. Designed to replace machined parts made from steel and lower performing plastics, this engineering polymer has high-impact strength, is easily machined and has no moisture absorption.

Polystone® M MDT complies with FDA regulations concerning direct contact with food. Every food processor that utilizes metal detectors in their processing or packaging operations can easily realize the advantages of Polystone® M MDT.


  • FDA compliant
  • Metal detectable
  • Outstanding wear resistance
  • High impact strength
  • No moisture absorption
  • Easily machined


  • Wear strips
  • Sprockets
  • Chain guides
  • Pillow blocks
  • Bushing & bearings
  • Gears & guides
  • Scraper Blades