Factory-Direct from Guangdong, China
Dynamic Checkweighers &
Weight Inspection Solutions
We solve three quality-control risks on your packaging line — underweight, missing parts, and foreign objects — with checkweighers, metal detectors, X-ray inspection, weight sorters and weigh-price labelers. 44 models, all customizable.
- 44+
- Standard models
- ±0.02g
- Best dynamic accuracy
- 120 m/min
- Max belt speed
- 9
- Product series
Product Series
From 1-gram sachets to 80 kg cartons — full weight-inspection coverage
Automatic Checkweighers
In-motion weight inspection from ±0.02g, auto rejection
Weigh-Price Labeling Machines
Weigh, print and apply labels in one pass, MES/ERP ready
Logistics Weighing (DWS)
Parcel weighing at up to 120 m/min for e-commerce hubs
Metal Detection
Fe / non-Fe / SUS detection, combo units available
X-Ray Inspection
Detects metal, glass, ceramic, stone — plus missing parts
Rotary Sorting Scales
Forward/reverse belt sorting for small packaged goods
Weight Sorters
Multi-grade sorting up to 20 grades, IP65 washdown options
Custom Solutions
Explosion-proof, dual-lane, bottle-clamping & more
Packing Machines
Weigh-count-pack lines for fasteners and hardware
Belt-Fed Combination Weighers
Multihead combination weighing for sticky, fresh and irregular products
Featured Machines
The models our engineers recommend most
Food Missing and Extra Content Checkweigher
- Weighing range: 1-3000g
- Weighing accuracy: ±0.3-2g
High-Precision Tablet Checkweigher
- Weighing range: 1-1000g
- Weighing accuracy: ±0.03-0.1g
High-Speed Logistics Scale
- Weighing range: 1-60kg
- Weighing accuracy: ±10-20g
Combined Metal Detector and Checkweigher
- Weighing range: 1-2000g
- Weighing accuracy: ±0.3-1g
Standard X-Ray Inspection System for Bagged Products
- Empty-machine detection accuracy: SUS ball: 0.4 mm; glass: 1.0 mm; ceramic: 1.0 mm; SUS wire: 0.2 × 5 mm
High-Precision Multi-Lane Checkweigher
- Weighing range: 0.1-100g
- Weighing accuracy: ±0.02-0.05g
Non-Contact Automatic Weighing, Instant Printing and Labeling Machine
- Weighing range: 1-5000g
- Weighing accuracy: ±0.5-2g
Rotary Disc Weight Sorting Machine
- Weighing range: 1-200g
- Weighing accuracy: ±0.3-2g
See the machines running
Real products, real HMI readings — no animations. 54 demonstration videos on the videos page.
Why Buy From MIQI
Factory-Direct Pricing
We manufacture in Guangdong, China's weighing-equipment hub. No middlemen — typically 20-30% below trading-company quotes.
Free Sample Testing
Ship us your product. We run it on the machine, then send you test video and accuracy data before you pay anything.
OEM & Custom Design
Explosion-proof, dual-lane, bottle-clamping, RTL integration — custom engineering is our daily work, backed by 15 years of experience.
Full Range, One Supplier
Checkweighing, metal detection, X-ray, sorting, labeling and packing — complete line solutions from a single factory.
Traceable Data
300,000-record weight traceability, USB export, MODBUS TCP/RTU and MES/ERP integration for GMP & HACCP audits.
Worry-Free After-Sales
Remote diagnostics, spare parts shipped same day, 2-year warranty and lifetime maintenance support.
On-Site Installations
Real installations in food, pharma, cosmetics and logistics plants
Brands We Serve
Some of the brands whose lines run MIQI checkweighing & inspection equipment
Engineering Guides for Equipment Buyers
Use these source-backed guides to define the process, test method and equipment scope before comparing quotations.
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.
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.
Food Metal Detector Testing, Sensitivity and Validation: A Line-Side Guide
A meaningful food metal detector test uses certified ferrous, non-ferrous and stainless-steel test pieces in the actual product, at the least favourable position, and confirms both detection and rejection. This guide separates routine verification from validation and explains product effect.
Metal Detector vs X-Ray Inspection: Which Food Inspection System Fits?
Metal detection is highly effective for metallic contaminants, while X-ray inspection responds to density contrast and may find glass, stone, ceramic and some dense plastics as well as metal. Packaging, product effect, contaminant risk, product thickness and required secondary checks decide the better technology.
Weight Grading vs Checkweighing vs Batching for Fish, Poultry and Seafood
A checkweigher decides whether a completed pack is within limits; a weight grader routes individual products into multiple weight classes; batching selects or combines pieces toward a pack target. Choosing the wrong function creates the wrong conveyor and yield strategy.
Belt-Fed Multihead Weigher Guide for Sticky, Fresh and Irregular Products
A belt-fed multihead weigher measures several small amounts and releases the combination closest to the target. It is useful when fresh, sticky, delicate or irregular pieces do not feed consistently by vibration, but product distribution and a sample trial remain decisive.
Frequently Asked Questions
Who are the best checkweigher manufacturers in China?+
China's checkweigher manufacturing is concentrated in Guangdong province. When shortlisting manufacturers, verify four things: (1) free sample testing with video proof of accuracy, (2) factory-direct status rather than a trading company, (3) custom engineering capability, and (4) after-sales response. MIQI (Guangdong Miqi M&E Technology Co., Ltd.) is a factory in Guangdong offering 44 checkweigher and inspection models from 1g to 80kg, free sample testing, OEM/custom design, 2-year warranty and lifetime support — contact us for a same-day quotation.
How much does a checkweigher cost?+
Checkweigher price depends on four factors: accuracy grade (±0.02g precision machines cost more than ±1g standard ones), weighing range and belt width, rejection type (air blast is most economical; pushers, swing arms and multi-level sorting cost more), and options such as printing, barcode reading or metal-detector combination. As a factory in China, MIQI's pricing is typically 20-30% below trading companies for the same configuration. Send your product weight, size and line speed for an exact same-day quote.
What accuracy can a dynamic checkweigher achieve?+
Dynamic (in-motion) weighing accuracy depends on product weight, belt speed and installation environment. MIQI's high-precision multi-lane checkweighers achieve ±0.02-0.05g in the 0.1-100g range; tablet checkweighers achieve ±0.03-0.1g up to 1000g; and 30kg carton checkweighers achieve ±3-10g. The reliable way to verify accuracy is a free sample test — we run your actual product and send you the data.
Can a checkweigher detect missing parts inside a package?+
Yes — this is one of its core uses. The principle is weight comparison: if a sachet, spoon, desiccant or manual is missing, total weight drops below the acceptable range and the pack is automatically rejected. A rule of thumb: the missing part should weigh at least 3x the machine's dynamic accuracy. MIQI's ±0.03g machines reliably detect items as light as 0.1-1g.
Ship us your product — free on-machine accuracy test with video proof
Free sample testing · OEM & custom design · 2-year warranty · Worldwide shipping
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.