Hefei Mayson Machinery Co., Ltd
Company
Sorting technology for a green future.
Mayson designs and manufactures optical color sorters and NIR material separators for plastics recycling and resource recovery. From our production center in Hefei, China, we help users in more than 30 countries turn mixed waste streams into clean, regenerative value.
Who we are
A focused manufacturer of optical and NIR sorting machines.
Hefei Mayson Machinery Co., Ltd is a certified high-tech enterprise specializing in colour and near-infrared sorting equipment. We have grown into one of the most trusted manufacturers in the field by staying close to a single, hard problem: separating mixed materials cleanly, repeatably, and at production scale.
That one engineering core reaches across two material worlds. In food and agriculture we sort rice and paddy, beans and seeds, nuts, and fresh or frozen products by colour and surface defect. In recycling and resource recovery we separate plastics, glass, and metals by colour, polymer type, and shape — giving recovered material a cleaner second life.
Behind every line is an in-house team of R&D engineers, production specialists, and after-sales technicians who carry a project from the first material sample through installation, training, and long-term support.
HeadquartersBlock A, Zhongrui Tech-research Building, No. 9 Hongfeng Road, Hefei City, China
Mission & values
Sorting creates regenerative value for individuals, communities, and society.
We exist to provide global users with the most professional, systematic, and commercially valuable sorting solutions — and to keep material out of landfill by giving it a second, cleaner life.
Regenerative by design
Every machine is built to recover value from material that would otherwise be lost, supporting a circular, lower-waste economy.
Sample-led engineering
We start from the real material, define the visible separation, then configure the recognition path — not the other way around.
Systematic solutions
Color, NIR, flake, and bottle platforms share one engineering core, so a line can scale and adapt without starting over.
Commercial value
Throughput, purity, and uptime are measured against the economics of the plant they serve, not against a spec sheet alone.
Company milestones
From agricultural colour sorting to high-purity plastics recycling.
Mayson's development has followed the materials our customers needed to recover. It began with food and agricultural sorting, then moved into spectral recognition — where our deepest progress has been in plastics recycling, alongside continued advances in grain and food quality sorting.
Mayson is founded in Hefei
The company is established with a dedicated optical-sorting R&D team, focused on machine-vision separation of granular materials.
First colour sorting platform
First-generation colour sorters enter production for rice and paddy, beans and seeds, and nuts — separating by colour and surface defect.
Near-infrared material recognition
NIR recognition is added to the platform, extending the company from food sorting into polymer identification and recycling.
High-purity flake sorting
High-resolution colour and NIR sorting is brought to washed plastic flakes, producing high-purity PET, PE, and PP recyclate at production scale.
AI bottle separation
Deep-learning vision separates whole plastic bottles by polymer and colour at line speed, while the same recognition gains sharpen food and grain defect detection.
30+ country service network
The installed base passes 30 countries across both recycling and food markets, backed by remote diagnostics and a structured after-sales team.
AI spectral recognition
Next-generation AI spectral recognition and networked service raise separation accuracy across plastics, glass, and food lines, and shorten commissioning time.
How we work
One in-house team, from first weld to lifetime support.
Manufacturing, R&D, quality, and global service share the same roof and the same standard. Jump to any part of the operation below.
Manufacturing
Built, calibrated, and proven under one roof.
Every Mayson sorter is fabricated and assembled in our own production center in Hefei — frames, optical chambers, illumination, feeders, and ejector banks all come together on one floor. Working under a single quality standard, our production team can hold tolerances from the first cut to the final run-test, so the machine that leaves the line is the machine we have already watched sort material.
100%In-house assembly
4Sorter platforms on one line
1:1Run-tested before shipment
- 01
Rigid, aligned structures
Vibration-controlled frames and cabinets are fabricated in-house so the optical path and conveyors stay in alignment through years of continuous production.
- 02
Optical chamber assembly
Cameras, lenses, and LED illumination are mounted and aligned in a controlled chamber, giving the recognition system a clean, glare-free and repeatable image.
- 03
High-speed ejector banks
Pneumatic ejector arrays and air manifolds are fitted and timed so the machine can act on a single flake or grain with millisecond precision.
- 04
Wiring, control & integration
PLC control, HMI, and air systems are wired and integrated to the same standard on every unit, ready for recipe loading and final calibration.
From frame to shipment in six controlled stages.
- 01Frame & cabinetStructure fabricated and squared.
- 02Optics & cameraImaging and lighting aligned.
- 03Ejector & pneumaticsValves fitted and timed.
- 04Wiring & controlPLC, HMI, and air integrated.
- 05CalibrationCameras and ejectors tuned.
- 06Run-test & packProven, signed off, shipped.
Research & Development
A dedicated R&D team behind every recognition path.
Mayson's in-house engineers own the full recognition stack — optics and illumination, near-infrared spectroscopy, deep-learning vision, and the real-time control that turns a decision into an ejector pulse. Mechanical, electronic, and software disciplines sit together, and development always starts from real material rather than an idealised spec, so the recipe that ships is robust on the customer's actual feed.
- 01
Optical & illumination engineering
High-resolution colour imaging and tuned lighting that make subtle colour and surface-defect differences visible and consistent at line speed.
- 02
Near-infrared spectroscopy
Spectral models that identify materials by polymer type — the basis for separating PET, PE, PP, and PVC into high-purity fractions.
- 03
Deep-learning vision
Trained neural models that fuse colour, material, and shape cues to resolve the borderline cases that fixed thresholds cannot.
- 04
Real-time control & ejection
Embedded control and timing that convert each recognition result into a precise, high-speed accept-or-reject action.
Sample first, recognition path second.
- 01Material sampleStudy the real feed.
- 02Define separationSet accept and reject.
- 03Choose technologyColour, NIR, or AI.
- 04Tune recipeOptimise on samples.
- 05Validate resultConfirm purity and yield.
- 06Field feedbackFeed data back to R&D.
Quality
Performance proven on real material, not promised on paper.
Quality at Mayson is a chain of checkpoints that runs from incoming components through in-process calibration to a final run-test on representative material. Critical parts are measured against drawing, the optical and ejector systems are calibrated by the team that built them, and the machine sorts a real sample before it is signed off — so what arrives is a known, documented configuration, not an estimate.
100%Run-tested before shipment
4Quality gates
DocSigned-off configuration
- 01
Incoming component inspection
Optical, mechanical, and electronic parts are measured and verified against specification before they ever enter the build.
- 02
In-process calibration
Cameras, illumination, and ejector timing are calibrated and checked during assembly, so the machine is aligned long before it runs.
- 03
Representative material run-test
Each system sorts material that represents the customer's stream, confirming the accept and reject results in practice, not just in theory.
- 04
Documented sign-off
Settings and results are recorded so the shipped machine is a traceable, repeatable configuration on day one.
Global Service
Installation, training, and 24/7 support across 30+ countries.
A sorter only creates value while it runs well, so Mayson stays with the line after it ships. Our engineers commission the machine on site and confirm the sorting result, train operators to run and adjust recipes, and remain reachable through remote connection for fast diagnostics. Structured spare-part and maintenance support keeps purity and throughput where they should be over the working life of the equipment.
30+Countries served
24/7Remote support
RemoteConnection & diagnostics
- 01
Installation & commissioning
Our team integrates the sorter into the line, sets the first recipes, and confirms the result on the customer's own material before handover.
- 02
Operator training
Operators learn to run recipes, read accept and reject streams, and make day-to-day adjustments with confidence.
- 03
Remote diagnostics
Networked remote connection lets Mayson engineers diagnose and assist within hours, wherever the machine is installed.
- 04
Spare parts & maintenance
Structured after-sales support keeps spares, preventive maintenance, and recipe help available across the machine's life.
Contact Mayson
Bring us your material, and we will build the sorting line around it.
Send a sample or describe your stream. Our engineers will define the separation, recommend a platform, and plan a material test.