Alro logo Alro Steel was established in 1948 by Al and Robert Glick. Today, Alro is comprised of Alro Steel, Alro Metals, Alro Plastics and Alro Metals Outlet.

Alro Plastics Product: Polystone® M XDT

Polystone® M XDT

Size and Availability:

Rod / Round:
- Diameters: 1/2”dia up to 6”dia
- Rod lengths: 10 foot long

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

Polystone® M XDT  Polystone® M XDT
Polystone® M XDT – The industry’s first X-ray detectable UHMW-PE!

The need for traceable plastics, especially machined parts for filling, sorting and packaging machinery is critical due to strict FDA regulations regarding foreign materials and contaminants. Since Rochling introduced their line of Metal Detectable engineering plastics more than two years ago, these unique products continue to be an effective solution for plastics parts used in open product zone applications.

However, moving forward, Rochling quickly realized a demand for X-ray detectable plastic parts for today’s high speed machinery as processors turn to X-ray inspection equipment especially for post-package inspection.

Working together with one of the world’s largest food processors and a leading manufacturer of X-ray inspection systems, Polystone M XDT has proven to be detected with a particle size as small as 3mm cube. Running speeds as fast as 250 feet-per-minute, this product can be detected and automatically sorted to a product hold area for further inspection. It works effectively with various types of packaging including metal cans, plastic and composite containers and glass jars.


  • FDA compliant
  • X-Ray detectable
  • Outstanding wear resistance
  • High impact strength
  • No moisture absorption
  • Easily machined


  • Wear plates
  • Scraper blades
  • Filler plates
  • Pocket fillers
  • Piston fillers
  • Mixer components
  • Hopper guides
  • Pillow blocks
  • Dividers