
Precision Flake
Color Sortingfor PET and Rigid Plastics
Advanced optical detection and high-speed ejection deliver exceptional color separation for PET and rigid plastic flakes. Purify clear, light-blue, green, and mixed-color streams with outstanding accuracy and stable performance.




Feed
Even flake delivery ensures consistent sorting.
Detect
Optical detection identifies color and material.
Accept / Reject
High-speed ejection delivers clean accepts and accurate rejects.
Why MAS-C
A color sorter built to make recovered plastic worth more.
The Maximum Sorting (MAS) color platform is engineered for flake and rigid-fragment streams where visible color and appearance decide product value.
Advanced color sorting
Precise separation driven by subtle color and shade variation across flakes and rigid fragments.
Cost-effective
Low maintenance keeps the total operating cost down across the machine's working life.
Real-time performance insight
On-board data analytics support process optimization and faster line decisions.
Streamlined operation
A clear, user-friendly interface shortens operator training time.
Energy savings
An energy-efficient design lowers power consumption per tonne sorted.
Compact design
A space-efficient footprint integrates into existing recycling lines.
Main applications
Two color-sorting jobs, one platform.
MAS-C is positioned by the visible sorting target rather than a vague plastic category, so the recipe stays concrete.

Application 01
General color sorting
Sort single- and double-sided colored plastic flakes, detect and remove opaque and black flakes from multicolored material, and pull black material out of mixtures such as PC alloy and PC / PP / PS / ABS.

Application 02
Color sorting in PP / PE
Separate red and yellow, blue and green, black, multicolored, transparent and white flakes from PP and PE material to recover clean, single-color fractions.
Flake color stream
Mixed color flakes, accepted color range and off-color rejects.
MAS-C is framed around visible color and appearance sorting for prepared flakes or rigid fragments, not whole bottles.

Color boundaries depend on visible contrast, flake size, moisture, lighting, presentation and the selected recipe.
Raw materials
Color classes MAS-C is built to recover.
Switch between material families and click any class to see exactly what enters the machine and what comes out — feed, accepted product, recovered color fractions and reject classes.
Typical color fractions recovered from prepared PET flake streams.

Mixed feed
Clear PET dominates the incoming stream, mixed with blue, green, amber, pink and slightly yellowed pieces. This is the raw flake curtain MAS-C reads before any decision is made.
Accepted and reject classes are always confirmed on your representative samples before a configuration is quoted.

The platform
A dedicated color-sorting platform, not a generic line.
Stable feeding and presentation, controlled visible-light imaging and precisely timed ejection are tuned around prepared flakes so color decisions stay repeatable from the first pass.
How it works
From color sample to reject timing.
MAS-C should be explained as controlled visible inspection and recipe-led ejection for prepared flakes.
- 01Customer-prepared
Feed & stabilize
Prepared flakes are metered by a vibratory feeder and spread into a thin, even curtain so every piece is presented to the cameras the same way. Stable presentation is what makes the color decision repeatable from the first pass.
- 02Controlled lighting
Illuminate & image
Calibrated full-spectrum LED lighting floods the inspection zone while high-resolution cameras capture each flake's color, brightness and transparency — read from both sides so a flake cannot hide its off-color face.
- 03Live recipe
Recognize against the recipe
The processor compares every flake to the accepted color range and the named reject classes from your sample test — clear versus off-color, opaque, black or aged — and makes an accept/reject call in real time.
- 04Air ejection
Time & eject
A fast valve bank fires a precise air pulse the instant an off-spec flake reaches the ejection line, knocking it into the reject channel while accepted flakes fall straight through. Timing is tuned to flake size and chute speed.
- 05Quality check
Verify & re-sort
Accepted and reject streams are checked against your quality target. Tighter targets can run a second pass to lift purity, or route the reject stream to recover a saleable color fraction instead of losing it.
Technical details
MAS-C color sorter specifications.
Six channel modules scale from compact lines to high-throughput plants. Figures may vary based on contaminant rate and target classes.
| Module (channels) | Length (mm) | Width (mm) | Height (mm) | Weight (kg) | Power (kW) | Capacity (T/H) | Air (m3/min) |
|---|---|---|---|---|---|---|---|
| C5 | 2348 | 1829 | 1887 | 1300 | 3.7 | 1.8-3.5 | <2.5 |
| C6 | 2663 | 1829 | 1887 | 1450 | 4.4 | 2-4 | <3 |
| C7 | 3293 | 1829 | 1887 | 1600 | 5.2 | 2.8-5.6 | <3.5 |
| C8 | 3293 | 1829 | 1887 | 1700 | 5.9 | 3-6 | <4 |
| C10 | 3923 | 1829 | 1887 | 2050 | 7.3 | 4-8 | <5 |
| C12 | 4033 | 1829 | 1887 | 2250 | 8.7 | 5-10 | <6.5 |
** Figures may vary based on contaminant rate. Final model selection is confirmed on representative samples.
Buyer questions
What buyers ask before specifying a MAS-C.
Straight answers on purity, throughput, what MAS-C can and cannot separate, and how a sample test turns into a quoted configuration.
Is MAS-C for whole bottles?
No. MAS-C is framed for flakes or prepared plastic pieces. Whole bottles should be reviewed under MAS-B.
Can MAS-C separate PET from PVC?
Not as a color-sorter claim. PET/PVC material separation should be reviewed under MAS-P or MAS 3D where the selected configuration supports it.
Can one color recipe work for every flake stream?
No. Different polymers, colors, particle sizes, dirt and moisture levels need recipe review.
Are throughput and purity published here?
No. Those values require representative sample testing and confirmed configuration.
Real sample testing
Use your own flake color targets before finalizing the sorting recipe.
A MAS-C project should start from real feed, accepted color fractions, off-color pieces and borderline material from the line.
Request a MAS-C testOnline preview
Preview your flake colors before a machine test.
Use the visual preview to discuss likely accepted and rejected color streams before sending real samples.
Preview material online