Best seller · 5th Generation
5th Gen Standard
Low-temp resins · 50–70 kg/h · single powder
- 1-minute hopper swap, full purge under 5 minutes
- Anti-stick mineral-oil spray for powders prone to caking
- DualMode™ runs color powder and masterbatch
The company that created the color powder dosing machine category
Replace the colour blending
station on your shop floor
MegaColor intelligent color powder dosing machines meter powder into resin
continuously at the ratio you set — set the recipe once and leave it.
Single-dose dosing consistency CV < 0.6%. Fully sealed: zero airborne dust,
zero mineral oil, zero waste.
Part of Sunup Group · NEEQ-listed 873579 · 20 patents in force (itemised list available)
- 873579NEEQ-listed
parent company Sunup - 20patents in force
2 invention + 18 utility model - CV < 0.6%single-dose dosing consistency
0.556% measured on the recommended setup - In-housemotors and control system
built to our spec, not off-the-shelf - 8 yearscolor powder dosing only
RMB 10M cumulative R&D - Huangyan, Taizhoumanufacturing base
visits by appointment
Four problems with manual blending, answered one by one
On the left is what happens on the floor every day. On the right is how we do it. No concepts — just the structural difference.
Manual blending
- A tumbler cannot blend evenlyPowder is tipped into resin and tumbled. The vessel itself is the limit — colour does not repeat from batch to batch
- Dust goes into the workshop airOpen blending puts powder in the air, which costs you on both compliance and operator health
- You need mineral oil to make powder stickA dispersing oil has to be added so the powder adheres to the pellets — an extra cost on every tonne
- Fear of running short means over-batchingOperators add 1.5%–5% extra by habit. The surplus is only usable if an identical colour order comes back, so it sits in a corner that nobody wants to dig through, and it ends up sold as scrap
- Labour adds upOne blending operator handles 3–5 tonnes a day at most, so a 50-machine shop needs five or more
MegaColor intelligent dosing
- Gear metering, dose by doseEach dose is the gear cavity volume multiplied by the tooth count. Single-dose dosing consistency is CV < 0.6%, against 3%–5% for typical volumetric equipment
- Zero airborne dustThe mixing chamber is fully sealed, so powder never reaches the workshop air
- Zero mineral oilAdhesion does not depend on dispersing oil, so that additive cost disappears
- Zero wasteDosed as the machine shoots. Nothing is left in the chamber when a batch ends — 99.99% material utilisation, against 1.5%+ lost to manual blending (15 tonnes a year on 1,000 tonnes of resin)
- No need to over-batchYou make exactly what the order needs. Set a dose count and the machine stops on its own when it gets there, so in principle nothing extra is mixed
- Labour freed upOnce the parameters are set, the machine doses and blends on its own. No blending operator needed
Which model do I need?
Four questions and you get a model number. If you are unsure, pick “both” — we will work it out from your actual material list.
① Which resins do you run?
② Throughput per machine?
③ Do you need to dose two resins at once?
④ Do you need to dose two powders at once?
Answer all four and your recommended model appears here.
How the powder is metered in
Metering does not rely on sensor feedback. It relies on the physical volume of a gear cavity. The structure sets the floor, and that is the fundamental difference from an ordinary volumetric feeder.
-
01
Powder tank holds the powder
4.6 L on standard machines, 10.5 L on large-capacity. The tank only stores — it takes no part in metering. Load what the shift needs; it does not have to be full, and how much sits in the tank has no bearing on the size of each dose.
-
02
Metering gear sets each dose
Dose = gear cavity volume × tooth count. That is where the 50 / 100 / 200 settings come from. On the recommended setup (fine-gear at the 100-tooth setting) single-dose dosing consistency measures 0.556%; the published figure is CV < 0.6%.
-
03
Feed chamber proportions by volume
The feed chamber is volumetric, with a fixed chamber volume. Measured on PP, one chamber holds roughly 1.3 kg, and powder concentration varies by less than ±0.007% within a batch.
-
04
Blending inside a sealed chamber
Blending happens inside the sealed chamber — no mineral oil, no airborne dust. Nothing is left in the chamber when a batch finishes, so there is no leftover to throw away.
-
05
Straight down into the hopper
Mounted above the injection machine feed throat, dosing as the machine shoots. Set the recipe once and it runs continuously without an operator watching it.
One important note about volumetric dosing: a recipe is only valid for the resin grade it was set on. Keep the same setting and switch from PP to PS and the powder dose is unchanged while the resin is heavier, so the colour comes out visibly lighter. That is inherent to volumetric dosing, not a defect. At handover we set up the companion app for you: run one test each time you change powder, the results are stored in the app, and resetting is quick and straightforward.
Product range
Three axes: throughput, two resins, two powders. High-temperature resins do not get a separate machine — the same machine is ordered in a high-temp configuration (model suffix -S). It looks identical from the outside; what differs is the heat-resistant internals.
Two resins and two powders are different problems: the Dual-Material model handles two resins (resin plus calcium carbonate, for instance) whose bulk densities are too far apart to blend evenly. The Dual-Powder model handles two powders (color powder plus metallic pigment, or powder plus release agent) that both need dosing to ratio at the same time.
5th Generation
5th Gen Dual-Powder
Low-temp resins · 50–70 kg/h · two powders
- Two powder tanks, each dosed to its own ratio
- 1-minute hopper swap, full purge under 5 minutes
- In service with color powder plus metallic pigment, and powder plus release agent
4th Generation
4th Gen Standard
Low-temp resins · 50–70 kg/h · regrind capable
- 10-minute changeover (4th Generation level)
- Takes regrind alongside virgin resin
- Mature platform with widely stocked spare parts
4th Generation
4th Gen Dual-Powder
Low-temp resins · 50–70 kg/h · two powders + regrind
- Two powder tanks for two powders or additives
- 10-minute changeover (4th Generation level)
- Handles two powders and regrind together
Range comparison
| Model | Generation | Throughput | Dosing configuration | Changeover | Powder tank |
|---|---|---|---|---|---|
| 5th Gen Standard | 5th Generation | 50–70 kg/h | Single powder | 1-min hopper swap / purge under 5 min | 4.6 L |
| 5th Gen Dual-Powder | 5th Generation | 50–70 kg/h | Two powders | 1-min hopper swap / purge under 5 min | 4.6 L |
| 5th Gen Dual-Material | 5th Generation | 50–70 kg/h | Two resins as standard (up to 4 with add-ons) | 1-min hopper swap / purge under 5 min | 4.6 L |
| 4th Gen Standard | 4th Generation | 50–70 kg/h | Single powder + regrind | 10 min | 4.6 L |
| 4th Gen Dual-Powder | 4th Generation | 50–70 kg/h | Two powders + regrind | 10 min | 4.6 L |
| 4th Gen Dual-Material | 4th Generation | 50–70 kg/h | Two resins as standard (up to 4 with add-ons) | 10 min | 4.6 L |
| Large-Capacity Standard | Large-capacity | 150–180 kg/h | Single powder | 10 min | 10.5 L |
| Large-Capacity Dual-Powder | Large-capacity | 150–180 kg/h | Two powders | 10 min | 10.5 L |
Dual-Powder and Dual-Material are not the same machine, and the two are easy to confuse. On a Dual-Powder machine both tanks hold powder — color powder with metallic pigment, or color powder with release agent, both of which customers run today. A Dual-Material machine handles multiple resins, such as resin with calcium carbonate, where the bulk densities are far enough apart that a tumbler will not blend them evenly and one settles out as soon as the hopper vibrates. The wrong machine will not fix the problem once it is installed, so if you are unsure, send us your material list.
On the customer's floor
The figures come from the customer's own records three months after commissioning. We identify customer plants by city and industry only.
Bottle caps · Yuyao, Zhejiang
Eight blending stations became one changeover and purging round
This plant used to blend colour by hand in a tumbler. The problem was never the operators' consistency — it was the vessel. Powder is never evenly distributed through a tumbler load, so caps from the same batch came out in noticeably different shades.
8 → 1blending headcount (two shifts → one inspection round)
3.2% → 0.02%monthly rejects for colour deviation
5 monthspayback on the equipment
- Previous process: manual tumbler blending, powder and resin agitated in an open vessel
- Core problems: uneven tumbler blending causing within-batch colour deviation; dust in the working area; blending roles hard to staff
- Model selected: 5th Gen Standard, one machine per injection machine
- What the operators do now: no blending — they handle changeover and purging
- Annual labour saving: over RMB 300,000
- In the customer's words: “Our buyers now specify our material.”
About these figures: they come from the customer's own records three months after commissioning, not from a projection. We identify customer plants by city and industry only, and we do not resort to hints like “a well-known brand”. The other cases in progress — a customer now on their third repeat order, a changeover trial in home appliances, and colour matching on export parts — will be published to the same structure: previous process, specific problem, model selected, implementation timeline, before-and-after comparison, and photographs from the floor.
Technology and patents
A wall of certificate photographs convinces nobody. What follows is what each piece of technology actually solves.
Volumetric gear metering
Each dose is fixed by the metering gear — cavity volume × tooth count — not by a timer and not by an operator's judgement. That is where the 10 / 50 / 100 / 200-tooth settings come from.
The powder tank only stores; it takes no part in metering. Load what the shift needs rather than filling it, because the quantity in the tank has no bearing on the size of each dose.
Fully sealed mixing chamber
Powder and resin are blended inside a closed chamber. Against an open tumbler, that means dust stays contained, and no dispersing oil is needed to make the powder adhere.
This is the structural source of two of the Three Zeros: zero airborne dust and zero mineral oil.
Dosed as the machine shoots
Material is fed to recipe ratio on demand, and nothing remains in the chamber when a batch ends. Neither of the two usual losses applies: surplus set aside, and leftover carried into the next batch.
This is the basis of the 99.99% material utilisation figure — it refers to leftover loss. A dose count can also be set for automatic stop: work out how many doses an order needs, enter it, and the machine stops when it gets there, so in principle no batch is over-mixed.
Key metrics and how they are measured
Every figure is published with its test conditions. A specification without stated conditions is one you cannot compare against anyone else.
| Metric | MegaColor | Definition / test conditions | Industry comparison |
|---|---|---|---|
| Single-Dose Dosing Consistency (CV) | < 0.6% | Repeated doses of the same powder on the same gear at the same setting, each weighed. CV = standard deviation ÷ mean. Measured 0.556% on the recommended setup (fine-gear at the 100-tooth setting). | Typical volumetric: 3%–5% |
| Powder concentration variation within a batch | < ±0.007% | Calculated on 1.3 kg of PP per batch. PP / PE is the worst case, so this is an upper bound. | Manual blending: > ±0.2% |
| Part weight accuracy | < 1% | Variation in finished part weight. Consistent dosing is the cause; consistent weight is the result. | Common in industry: > 5% |
| Colour deviation | ΔE < 0.2 | CIE L*a*b* formula, D65 illuminant, measured with a spectrophotometer. | Pass line for decorative parts: ΔE ≤ 1.0 |
| Material utilisation | 99.99% | Refers to leftover loss: dosed to recipe as the machine shoots, nothing left in the chamber. | Manual blending loses 1.5% or more |
| Changeover time | 1 minute | 5th Generation: 1-minute hopper swap, full purge under 5 minutes. 4th Generation: 10 minutes. | Manual blending to a light colour: > 60 minutes |
The patent list has its own page. Our parent company, Zhejiang Sunup Technology Co., Ltd., holds 20 patents in force covering color powder dosing machines (2 invention patents + 18 utility models). Every title and application number is listed, so you can verify each one against the CNIPA register yourself — view the patent list.
What you see on your phone
Once the machine is connected, you can see the running state of any single machine and which machines across the plant are online. Four parameters — blending time, powder calibration, oil spray timing and additive calibration — can be changed from the phone.
R&D and manufacturing
The geared motors and the control system are developed in-house by the group, not assembled from off-the-shelf parts.
Developed in-house
| Geared motor | Built to Sunup's specification (not an off-the-shelf part) |
|---|---|
| Control system / PCB | Developed in-house by Sunup (not a bought-in PLC) |
| Cylinders / solenoid valves | AIRTAC (Taiwan, China) |
Scale
| Manufacturing base | 20,000 m² |
|---|---|
| Monthly capacity | 2,000 units |
| Team | 300+ across R&D, production and sales |
| Cumulative R&D spend | RMB 10 million |
| Accreditations | National High-Tech Enterprise · Zhejiang Province “Specialised, Refined, Distinctive and Innovative” SME · Zhejiang Provincial Industrial New Product (2025) |
Service commitments
The warranty terms are at the end. First, what we do.
12-month warrantyfrom the date of acceptance
Remote diagnosis firstphone or video — most issues do not need to wait for a visit
Spare partscommon parts held in stock by model
Installation and trainingincluding recipe and tooth-setting training
Free material trialwe run your material, then confirm the model
On-site response timeby region, agreed in the contract
Service locations
| Location | Where | Primary coverage |
|---|---|---|
| Headquarters | Huangyan, Taizhou, Zhejiang | Plant, spare parts warehouse, technical centre |
| Yuyao service centre | Yuyao, Zhejiang | Ningbo and Shaoxing area |
| Dongguan service centre | Dongguan, Guangdong | Pearl River Delta |
These are our service centres in China. Outside China, support runs on remote diagnosis in English plus air-freighted spare parts, and we will train your own maintenance staff during commissioning. Regional service partners are being appointed — tell us where you are and we will set out in writing what we can commit to for your location.
Full warranty terms and coverage
1. Warranty period and start date
The machine carries a 12-month warranty from the date of acceptance, evidenced by
the installation acceptance record or the signed sales contract. Faults or failures
caused by the product's own quality within the warranty period are repaired or
replaced free of charge.
2. What is not covered
The following are not product quality faults and fall outside free warranty
coverage, although we still provide paid service for them at our out-of-warranty
rates:
- Damage from use, transport, storage or maintenance contrary to the manual
- Damage from repair or modification by anyone other than a MegaColor-authorised engineer
- Damage from dismantling the machine yourself
- Damage from the use of non-original spare parts
- No valid proof of purchase or installation acceptance record, so warranty coverage cannot be established
- Warranty documentation that does not match the model or serial number of the machine submitted, or that has been altered
- Damage from force majeure such as earthquake, fire or flooding
- Machines beyond the warranty period
- Damage from operating conditions (voltage, humidity, temperature, altitude and similar) clearly outside the range stated in the manual
Repair charges for accidental damage and force majeure are payable in full, without reduction.
3. Out-of-warranty charging
Repairs outside the warranty period follow the MegaColor After-Sales Charging
Schedule: a base service fee per visit, spare parts at list price, travel and
accommodation for out-of-area visits at cost, and a premium for expedited response.
If you supply the parts yourself we charge only the base service fee — but if a
part you supplied fails and causes a second repair, that repair is charged afresh.
Repair work itself carries a 3-month warranty. Two tiers of maintenance package
(basic and upgraded) are also available, covering scheduled inspections, unlimited
remote support and a set number of free on-site visits; these packages are currently
limited to Zhejiang Province and are non-transferable.
Exact amounts, package contents and scope are in the schedule, available from
sales or after-sales on request.
4. Other
If you dispute a charge, raise it after you receive the cost breakdown and we will
respond within the agreed time. Any change to the charging schedule will be notified
in writing in advance. The above is our current after-sales position; for a specific
project the signed sales contract and the After-Sales Charging Schedule prevail.
What manual blending costs you a year
Run it on your own shop floor numbers. We do not assume your output or your wage rates for you.
Four costs — most shops only count the first
- Fully loaded labour — blending operators × monthly pay (including contributions) × 12
- Rework from colour deviation — annual output × rework rate × resin price
- Leftover loss — manual blending over-batches by around 1.5% for fear of running short, and the surplus is eventually sold as scrap; the loss is the gap between virgin and scrap price
- Floor space — blending area × monthly rent × 12
The panel on the right works from the figures you enter.
Already running a masterbatch dosing machine? Switch to the second option — that one compares material cost only, with no blending labour, because you do not have a blending station to begin with.
Tell us about your production and we will recommend a model
Five questions, about a minute. We reply within 24 hours (Beijing Time, Mon–Fri).