Sorting Technology

Optical Sorters. Robotic Arms. Cleaner Bales at 10 Tons Per Hour.

Our 2022–2023 technology investment places Green Circle Recycling alongside major Midwest MRFs — with the responsiveness of a family-owned operation.

+58%
throughput increase 2022–2023
1
optical near-infrared sorter
2
robotic sorting arms (installed 2023)
10 t/hr
single-stream processing capacity
Sorting System

The Technology Stack

Every component serves a specific purpose in the sorting sequence. Together they achieve cleanliness and throughput that changes the economics for every buyer track.

Precision Sorting

Optical Near-Infrared Sorter

  • Identifies plastic and paper types by molecular signature
  • Faster and more consistent than manual sorting lines
  • Separates PET, HDPE, mixed plastics, paper grades
  • Reduces contamination in downstream bales

TODO: add make/model, throughput spec, and commissioning date

Installed 2023

Robotic Sorting Arms (×2)

  • Two picking robots augment optical sorting
  • Trained to identify and extract specific material types
  • Operate continuously without fatigue
  • Contribute to the 58% throughput-rate improvement recognized by WI DNR

TODO: add robot manufacturer, picks-per-minute spec, and material targets

Flow Management

Bypass Belt System

  • Routes material that does not sort cleanly on initial pass
  • Prevents premature rejection to residual / landfill stream
  • Keeps line throughput consistent during volume spikes

TODO: add detail on bypass routing logic and typical material affected

Recovery

Recirculating System

  • Material that exits sorting without a clean classification recirculates
  • Multiple-pass sorting increases recovery rate per ton received
  • Reduces residual percentage — better diversion outcomes for municipal partners

TODO: add estimated recovery-rate uplift and recirculation cycle count

Wisconsin DNR Recognition

58% Throughput Increase — Formally Recognized

The Wisconsin DNR recognized Green Circle Recycling's 58 percent increase in single-stream processing rate between 2022 and 2023 — one of the strongest facility-level improvements in the state during that period.

TODO: add DNR recognition citation, program name, and official language. Contact Zach for reference document.

View Facility Overview

Want to See It Running?

Facility tours are available for municipal partners, potential commodity buyers, schools, and industry groups.

Book a Facility Tour