High-Precision Inspection & Quality Control Systems
Protect your brand with industrial conveyor metal detectors and dynamic checkweighers. Featuring ultra-high sensitivity and dynamic filtering to automatically reject defective products. The ultimate defense line for food and pharma.
Overcoming Critical Quality Control Challenges
Challenge 1: Missed Contaminants & Product Recalls
Traditional QC
Manual inspections or low-grade sensors miss microscopic metallic shards, leading to devastating consumer complaints and multi-million dollar recalls.
Tengzhuo Solution
Zero-Defect Multi-Frequency Tech. Pinpoint accuracy that effortlessly captures microscopic Ferrous, Non-Ferrous, and Stainless Steel (SUS) particles.
Challenge 2: False Alarms & Costly Downtime
Traditional QC
Environmental vibrations or moisture instantly trigger false rejects on cheap detectors, constantly halting the production line.
Tengzhuo Solution
Dynamic Digital Filtering. Advanced DSP algorithms actively filter out workshop noise and vibrations, ensuring reliable, continuous operation with zero false alarms.
Challenge 3: Underweight Packages & Missing Items
Traditional QC
Blind spots in packaging lead to missing instruction manuals or underweight products, severely damaging brand trust.
Tengzhuo Solution
High-Speed Dynamic Checkweighing. Millisecond-response load cells weigh every single passing item at high speeds, automatically rejecting anything outside your strict weight tolerances.
Advanced Engineering for Absolute Accuracy
Fe & Non-Fe/SUS Detection
Equipped with highly tuned dual-channel sensors that independently and simultaneously monitor for both magnetic iron and difficult-to-detect stainless steel impurities.
Millisecond Weighing
Premium strain-gauge load cells calculate precise weights while the product is in motion, easily handling hundreds of packages per minute without slowing your line.
Overcoming Product Effect
A smart one-touch learning mode automatically analyzes your product’s moisture and density (product effect) to establish the perfect baseline threshold.
Flawless Defect Removal
We customize the exact rejection mechanism—Pusher, Air Jet, Drop Flap, or Swing Arm—to safely and rapidly divert your specific packaging format.
Explore Our Inspection & Quality Control Systems
Conveyor Belt Metal Detector
High-sensitivity detection for ferrous, non-ferrous, and stainless steel contaminants in packaged products.
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Dynamic Checkweigher
Precision weighing system with millisecond response time for high-speed production lines.
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Combo Inspection System
Integrated metal detection and checkweighing in one compact footprint for maximum efficiency.
View DetailsUncompromising Safety Across Every Sector
Metal Detectors for Food Industry
The ultimate safeguard for bakeries, meat processing, and snacks. Ensuring 100% elimination of metal fragments to meet strict global food safety regulations.
Pharmaceutical Checkweigher Systems
Verifying package completeness with extreme precision. Ensuring every pill bottle or blister pack contains the exact dosage and mandatory instruction leaflets.
Cosmetic Tube & Bottle Inspection
Protecting your high-end brand reputation by dynamically verifying the exact fill weight of premium lotions, shampoos, and beauty creams before cartoning.
Metal Detector for Garment Industry
Wide-format needle detector machines designed to scan clothing, shoes, and home textiles, guaranteeing no broken sewing needles reach the consumer.
Scalable Quality Control Integration
End-of-Line Integration
Seamlessly position our inspection units between your carton sealers and robotic palletizers for a fully automated, risk-free final packaging phase.
Explore End-of-Line SystemsData Logging & Tracking
Future-proof your facility. Our systems provide USB and Ethernet data export capabilities to fulfill strict HACCP and GMP traceability requirements.
Explore Smart QC TechCustom Reject Solutions
From gentle air-jets for fragile biscuits to heavy-duty pushers for 20kg sealed cartons, we engineer the perfect rejection mechanism for your product.
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Why Partner With Tengzhuo?
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True Source Manufacturer
We independently develop our own signal processing motherboards in our 3000㎡ factory, refusing to rely on third-party generic or rebranded software.
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IP65/IP69K Washdown Ready
Built entirely from 304/316 stainless steel. Our food-grade systems are engineered to withstand rigorous, high-pressure daily washdowns.
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Global Compliance Certified
All inspection equipment is rigorously tested to ensure full compliance with international HACCP, GMP, FDA, and CE safety standards.
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Lifetime Calibration Support
We provide 24/7 English video guidance and comprehensive calibration manuals to ensure your detectors maintain peak sensitivity year after year.
Frequently Asked Questions
This is known as “Product Effect.” Wet or salty foods generate their own conductive signals. Our machines feature an advanced Auto-Learning Algorithm and phase-tracking technology that specifically maps and cancels out your product’s unique signal, preventing false alarms entirely.
No. Standard metal detectors cannot penetrate aluminum foil because the packaging itself is metal. For foil-packed goods, you must select our specialized “Aluminum-Foil Compatible Metal Detector” or an X-Ray Inspection System.
Yes. Every metal detector we ship includes a set of certified standard Test Blocks (containing precise spheres of Ferrous, Non-Ferrous, and Stainless Steel) so your QA team can perform routine daily calibration checks.
Absolutely. We use food-grade PU/PVC belts designed with a quick-release mechanism. Your hygiene team can easily loosen the belt tension and remove it for deep cleaning without requiring any tools.
Ready to Guarantee 100% Zero-Defect Shipments?
Please send us your product dimensions, target weight, and packaging material (e.g., Plastic film or Aluminum foil). Our engineers will evaluate the maximum achievable sensitivity and quote you within 24 hours.