High-Precision Tablet Checkweigher
0.02g display resolution and checkweighing accuracy from ±0.03g — a high-precision inline checkweigher built for tablet, blister and vial packaging lines
High-Precision Tablet Checkweigher (MQ-CW3512L1) — range 1-1000g, accuracy ±0.03-0.1g. Factory-direct from Guangdong, China. OEM & custom available.
Typical applications: Pharmaceutical packaging such as tablet strip packs, medicine cartons, vials, and blister packs
Key Features
- ✓Three-level user access management with customizable passwords
- ✓User-friendly touchscreen operation interface
- ✓Variable-frequency drive (VFD) motor with speed adjustable as required
- ✓Safety features including hazard alerts, emergency stop button, and protective guards
- ✓Integrates with cartoning machines, production lines, automatic filling machines, vertical packaging machines, and more
Why Choose MQ-CW3512L1
0.02g Resolution Catches Every Missing Tablet
With 0.02g display resolution and ±0.03-0.1g checkweighing accuracy, one missing tablet in a blister card or one leaflet left out of a carton shows up instantly as a weight deviation. The 1-1000g weighing range covers everything from a single alu-alu strip to full cartons before case packing — all on one machine.
Variable Speed 5-90 m/min
A frequency-controlled motor lets you set belt speed anywhere from 5 to 90 m/min: slow down for small tablet formats where stability matters, or keep pace with your upstream packaging machine when the line speeds up. No more throttling the whole line to accommodate the checkweigher.
Five Rejection Methods to Match Your Product
Air blast, pusher, swing arm, drop flap and tilting flap rejectors are all available. Air blast handles light strip packs without flipping or scattering them; pushers remove cartons cleanly. Matching the rejector to the pack format means defects get rejected and good products never are.
100 Recipes for One-Touch Changeover
Store 100 product recipes on board — recall a recipe and run, no re-entering parameters at every format change. Three-level user access with individual passwords means operators can only select recipes, while parameter editing stays locked to process engineers and administrators, preventing accidental changes that misjudge an entire batch.
Hygienic 304 Stainless Steel Design
The 304 stainless steel housing withstands the daily wipe-downs of a pharmaceutical cleanroom. Hazard warnings, an emergency stop button and safety guards are fitted as standard, meeting pharma-plant inspection requirements for equipment hygiene and operator safety.
Optional Coding, Code Reading and Labelling
Inline coding, inline code reading, read-and-sort, inline labelling and real-time printing are all available as options — the checkweighing station handles serialization and traceability verification at the same time. No extra standalone unit for drug serialization codes, so the line stays shorter and the flow smoother.
Problems It Solves for You
Missing tablets in blister cards and leaflets left out of cartons are caught only by manual spot checks, which never cover the full batch — defects reach the market as complaints, returns or even regulatory notices
±0.03-0.1g accuracy weighs 100% of products inline. The gram-level deviation from one missing tablet or leaflet is detected and rejected on the spot, so no incomplete pack ever leaves the plant.
Frequent changeovers across multiple drug formats take 30 minutes or more of parameter re-entry each time, and one wrong value misjudges the whole batch
100 stored recipes: at changeover, recall the matching recipe on the touchscreen and run. Three-level access control keeps operators from touching process parameters — changeovers are fast and error-free.
When issues arise, no checkweighing records can be produced — failing GMP audits and customer inspections
Checkweighing data exports via USB for archiving, and the optional real-time printer keeps batch records on paper. Complete in-process data is available whenever auditors ask.
Buying separate machines for checkweighing, coding and labelling stretches the line, multiplies failure points and drives up maintenance costs
This machine takes optional inline coding, read-and-sort and inline labelling modules — one station covers checkweighing plus serialization and traceability, and it integrates with cartoners, filling machines and vertical packaging machines.
Technical Specifications
| Product model | MQ-CW3512L1 |
|---|---|
| Display division | 0.02g |
| Weighing range | 1-1000g |
| Weighing accuracy | ±0.03-0.1g |
| Weighing section size | L 350mm*W 120mm |
| Suitable product size | L≤200mm; W≤120mm |
| Rejection method | Air blast, pusher, swing arm, drop, upper/lower flap, etc. (customizable) |
| Optional features | Real-time printing, code-reading sort, inline inkjet coding, inline code reading and inline labeling |
| Stored recipes | 100 recipes |
| Conveyor speed | 5-90m/min |
| Power supply | AC220V±10% |
| Machine material | 304 stainless steel |
| Number of sections | Standard: 2 sections; optional: 3 sections |
| Data transmission | USB data export |
Functions in Detail
Choosing the Right Rejection Method
Five rejector types are available and configured to order: air blast, pusher, swing arm, drop flap and tilting flap. Rule of thumb: air blast for gram-weight strips and blisters, since it never touches or scatters the pack; pusher or swing arm for cartons with some weight of their own; drop flap or tilting flap where a collection bin sits at the end of the line. Tell us your pack format when ordering and our engineer will define the setup from your samples.
Data Management & Traceability
All machine data exports via USB — pass counts, reject counts and batch statistics can be archived for GMP batch records. The optional real-time printer outputs checkweighing evidence right at the line. Each of the three access levels has its own password, so who changed a parameter or switched a recipe is always traceable, with responsibilities clearly assigned.
Weighing Section Configuration
Standard configuration is 2 conveyor sections (weighing plus rejection), with a weighing section of 350mm long by 120mm wide. For lines with unstable infeed spacing, an optional 3-section setup adds an infeed spacing conveyor so every product crosses the scale individually — preventing false results from products arriving together.
Cleaning & Maintenance
The 304 stainless steel housing tolerates alcohol and standard cleaning agents, meeting daily line-clearance requirements in pharma plants. The variable-frequency motor has a simple structure with few maintenance points; belt changes and deck cleaning need no special tools, so clearance never slows down batch changeover.
Line Integration
Designed as line equipment, the machine integrates with automatic cartoners, filling machines, vertical packaging machines and existing production lines. AC220V±10% power means plug-and-play installation, and the 5-90 m/min adjustable belt speed leaves ample margin for matching upstream and downstream equipment.
Industries & Application Scenarios
Every blister card is weighed as it leaves the blister machine. The fractional-gram deviation caused by a missing or half tablet is identified and rejected instantly — replacing manual counting at the visual inspection station.
Inline inspection at the strip-packing machine outlet. Strip packs up to 200mm long and 120mm wide go straight onto the line, and 5-90 m/min belt speed keeps pace with the strip packer without backing up product.
Integrated with automatic cartoners to catch empty cartons and cartons missing a blister card or leaflet. A pusher rejects them into the reject bin — the final checkpoint before case packing.
Connected downstream of automatic filling machines to verify fill weight vial by vial. The 1-1000g range covers everything from small lyophilization vials to large-format bottles, keeping under- or over-filled vials out of the capping station.
Detects missing capsules or short counts on softgel and tablet bottling lines. With optional inline labelling and read-and-sort, checkweighing and label verification happen at a single station.
Checkweighing of individually packed lightweight items such as test strips and dressings. The 0.02g display resolution is just as sensitive to missing components in gram-level products — incomplete pouches are rejected on the spot.
Own Factory · Seeing Is Believing
Guangdong Miqi designs, builds and tests every machine in-house — each unit is bench-tested before shipment. Free sample testing, on-site factory visits and live video of the running machine are all welcome.
Compare this model with other configurations in dynamic checkweigher models.
Further reading
Decoding Checkweigher Accuracy: What "±0.1 g" Actually Means (Sigma Conventions and How to Compare Vendors)
Understand checkweigher accuracy, display division, repeatability and bias. Compare test conditions and distinguish 68.27% two-sided ±1σ coverage from 99.73% ±3σ coverage before selecting equipment for your product and line speed.
Checkweigher Calibration and Dynamic Verification: A Practical Line Test
Calibration establishes the relationship between indication and reference mass; verification checks whether the complete checkweigher still performs acceptably in production. Use this repeatable workflow to test multiple weights, speeds and reject outcomes without confusing resolution with accuracy.
How Does a Checkweigher Work? Infeed, Dynamic Weighing and Automatic Rejection
A dynamic checkweigher weighs every moving pack, compares the filtered result with recipe limits and removes or records exceptions. This engineering guide explains the complete three-stage process, the load-cell signal chain and the line conditions that determine repeatability.
MQ-CW3512L1 — Watch the Machine Running
Real machine footage with genuine on-screen readings — no animation.
Frequently Asked Questions
What is the price of High-Precision Tablet Checkweigher (MQ-CW3512L1)?+
Pricing depends on the weighing range, rejection method, conveyor dimensions and selected options. Send the product weight, dimensions and line speed for a factory-direct quotation.
Does MIQI export Automatic Checkweighers worldwide?+
Yes. MIQI ships worldwide with export packing, operating documents, configurable voltage and remote commissioning support. OEM branding and application-specific engineering are available.
Tell Us About Your Product
Share your product weight range, dimensions and line speed — our engineer replies within 24 hours with model recommendation and quotation.
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