INSPEX — PROC-X MANUFACTURING GROUP
InspeX Metal Detection & Checkweighing
Inline inspection systems engineered to protect product, process and brand. InspeX provides industrial metal detection, checkweighing, combination inspection and automated reject systems engineered for modern food, pharmaceutical, nutraceutical, chemical, personal-care and industrial production lines.
Inspection equipment is often installed at the final stages of manufacturing, but its role is far more important than simply identifying an occasional contaminant or underweight package. A properly engineered inspection system protects product safety, regulatory compliance, net-content control, manufacturing yield, downstream equipment, customer confidence and the manufacturer’s brand.
The InspeX portfolio includes: conveyor metal detectors, high-sensitivity inspection systems, pipeline metal detectors for pumped products, inspection technology for selected foil-packaged products, dynamic checkweighers and integrated metal detector/checkweigher systems — designed to become an integrated part of the production process rather than a standalone device at the end of a conveyor.
How a Metal Detector Works
Most industrial metal detection systems use a balanced electromagnetic field. Product passes through an inspection aperture containing transmitting and receiving coils, and under normal conditions the field remains balanced. When a metallic contaminant enters the field, its electrical or magnetic properties disturb that balance — the detector analyzes the disturbance and, if it exceeds the established threshold, the control system initiates the programmed reject sequence.
Ferrous Metals
Ferrous contamination typically contains iron — carbon steel, mild steel and iron fragments — and is generally the easiest category to detect.
Non-Ferrous Metals
Aluminium, copper, brass and bronze do not primarily contain iron but are detectable through their electrical conductivity.
Stainless Steel
Can be more difficult to detect, particularly certain austenitic grades used extensively in sanitary equipment — often the most important performance criterion in food and pharmaceutical applications.
What Determines Sensitivity?
Sensitivity cannot be evaluated by quoting a single detection number without understanding the application. Performance depends on product characteristics, moisture, salt content, conductivity, product temperature, package material, aperture size, orientation of the contaminant, conveyor speed, product dimensions, installation environment, vibration and electrical interference — so InspeX systems are application-engineered around the actual product and line.
Understanding Product Effect
Some products naturally behave electrically in a way that can resemble a metal signal — especially those containing moisture, salt, acids, minerals or conductive ingredients (meat, cheese, sauces, wet bakery products, prepared foods, pharmaceuticals). A properly configured detector must distinguish normal product electrical characteristics from a true metallic contaminant, which is why product testing and application-specific setup are essential.
Why Aperture Size Matters
As a general engineering principle, a smaller inspection aperture provides the opportunity for better sensitivity than an unnecessarily oversized one. InspeX systems are selected around actual product dimensions, package size, conveyor width, required clearance and line configuration — enough clearance without compromising detection through an excessively large opening.
Detector Types
Conveyor Metal Detectors
Designed for packaged products and free-standing items on a production conveyor — bags, pouches, cartons, trays, bottles, containers, boxes and tubs. Available in touchscreen and higher-sensitivity configurations for demanding products.
High-Sensitivity Detection
Configured around the actual product and line where contaminant risk is critical, products are small, or pharmaceutical/nutraceutical specification limits apply — validated with representative product, packaging, test pieces and production speed.
Pipeline Metal Detectors
Installed directly into product pipelines for liquids, sauces, slurries, pastes, emulsions and creams. A sanitary reject/divert valve removes contaminated product from the process stream — placed before filling, before packaging, after mixing, after homogenization, or at another control point.
Gravity-Fall Metal Detection
Installed directly in the product stream for loose powder or granules moving vertically — below a hopper, below a mixer, before packaging, or in a vertical transfer chute. A high-speed diverter removes contaminated portions.
Foil-Packaged Products
Traditional detection can be challenging with aluminium-foil or metallized packaging — InspeX includes inspection technology designed for selected foil-packaged products, with application testing recommended before final selection.
Before vs After Packaging
Inspecting free-flowing product before packaging can offer a smaller aperture, better sensitivity and simpler reject handling; post-packaging inspection provides final saleable-unit verification and integration with checkweighing. In some critical processes, both are justified.
Metal detection for bags and packaged powders typically follows: packaging machine → spacing conveyor → metal detector → reject system → reject confirmation → acceptable-product discharge. For larger bags, product stability and belt design become particularly important.
Automatic Reject Systems
Detection is only useful if contaminated or non-conforming product is reliably removed from production. InspeX supports pusher, flap, air-blast, belt-stop and alarm-based configurations, with the final design matched to the production line.
Pusher Reject
A pneumatic or servo-operated pusher moves the rejected package laterally — often appropriate for cartons, tubs, bottles, rigid packages and stable bags.
Flap / Diverter Reject
A hinged mechanism redirects product from the normal flow path — useful for selected packages and bulk-flow applications.
Air-Blast Reject
Compressed air removes lightweight products without mechanical contact — suitable for small packages, sachets and high-speed products.
Belt Stop & Alarm
The conveyor stops when contamination is detected where automatic rejection is unsuitable; visual and audible alarms alert operators to a detection event.
Reject Confirmation & Fail-Safe Engineering
A high-performance system should do more than energize a reject device — where required, it can confirm the rejected product actually entered the reject container, with additional monitoring of reject activation, reject-bin status, air pressure, conveyor operation, detector fault, product spacing and line synchronization.
Industrial Checkweighers
A dynamic checkweigher automatically weighs products while they continue moving through the production line, determining whether each package is within target weight, underweight, overweight, or outside programmed tolerance — non-conforming packages are automatically rejected.
How a Dynamic Checkweigher Works
Infeed Conveyor
Separates and stabilizes incoming packages.
Weigh Conveyor
The package travels across a precision load cell while the control system calculates its dynamic weight.
Outfeed / Reject Conveyor
Accepted products continue downstream while non-conforming packages are rejected — the complete measurement occurs while the line remains in motion.
Why Checkweighing Matters
- Net-content compliance
- Giveaway reduction
- Underweight protection
- Upstream process monitoring
- Quality assurance
- Statistical weight control
Checkweigher data can reveal upstream problems in filling, dosing, auger performance, pumps or product density, and can feed a closed-loop strategy with the upstream filler — targeting minimum giveaway and maximum compliance rather than relying on periodic manual checks.
Checkweigher Accuracy & Speed
Dynamic weighing is influenced by the complete line, not just the load cell — product weight, package dimensions, conveyor speed, product spacing, vibration, air movement, belt condition, line stability and centre of gravity all affect performance. InspeX combination inspection systems can support high-speed packaging applications, with published platform performance reaching up to approximately 280 packs per minute depending on application and configuration.
Metal Detector + Checkweigher Combination Systems
Rather than installing two independent machines, InspeX can provide integrated combination systems that perform metal contaminant detection, dynamic weight verification and automatic rejection within one coordinated platform — a package can be rejected for metal contamination, underweight, overweight, or another programmed inspection fault.
Smaller Footprint
Common HMI, coordinated reject controls, simpler line integration and reduced conveyor transitions.
Unified Recipes & Reporting
Consolidated reporting and unified product recipes across a single inspection station.
DC3 Combination Platform
Designed to perform contamination detection and dynamic weight verification in one compact line, with production records supporting traceability and statistical quality management.
Industries Using InspeX Inspection Systems
Food Processing
- Bakery, meat & poultry
- Dairy
- Snacks & confectionery
- Spices & cereals
- Powders
- Sauces & prepared foods
- Frozen products
- Packaged ingredients
Nutraceutical & Pharmaceutical
- Protein & supplement powders
- Tablets & capsules
- Sachets, pouches & tubs
- Packaged pharmaceutical products
- Medical nutrition
- Selected intermediate products
Cosmetics, Chemical & Plastics
- Creams, lotions & powders
- Bottles, jars & tubes
- Chemicals & specialty compounds
- Packaged industrial materials
- Pellets, resins & masterbatch
- Formulated polymer materials
Protecting Downstream Equipment
Metal detection is not used exclusively for final product inspection — an upstream detector can protect mills, extruders, pumps, homogenizers, grinders and other high-speed processing equipment from metallic foreign material before it causes damage.
Line Integration & Production Data
Sanitary Construction
Stainless-steel construction, sanitary conveyor design, cleanable belts, sloped surfaces, washdown construction, hygienic product-contact surfaces and tool-less access where required.
Mechanical Integration
Engineered around conveyor width, product aperture, infeed/outfeed elevation, package dimensions, footprint, product direction, reject position and upstream/downstream equipment — with custom belt widths and aperture selection.
Line Handshaking & Automation
Communicates with upstream fillers, baggers, cartoners, conveyors and plant PLC systems — signaling machine ready, conveyor running, inspection fault, reject event, reject-bin full, low air pressure and line stop.
Production Data & Traceability
Recipe storage, production records, inspection and reject counts, weight statistics, alarm history, batch information, and USB/Ethernet connectivity with remote support.
Metal Detection and HACCP
Metal detection is frequently incorporated into a manufacturer’s HACCP or food-safety plan as a defined foreign-material control point — after milling, after mixing, before packaging, after packaging, before final case packing, or at final production discharge — with defined verification and corrective-action procedures.
Validation & Reject Procedures
Routine performance verification uses certified test pieces representing ferrous, non-ferrous and stainless-steel contamination. A detection event should trigger a defined procedure: automatic rejection, identification of the rejected product, inspection of the reject mechanism, investigation, corrective action and documentation — a metal detector is part of a quality system, not a substitute for one.
Choosing the Right Inspection System
Conveyor Metal Detector
Generally suitable for bags, pouches, cartons, trays, bottles and packaged goods.
Pipeline Metal Detector
Generally suitable for liquids, pastes, sauces, slurries, emulsions and pumped products.
Gravity-Fall Metal Detector
Generally suitable for powders, granules, grains, free-flowing ingredients and bulk solids.
Special Packaging Inspection
Required when packaging materials such as aluminium foil affect traditional metal detection.
Combination Detector + Checkweigher
Suitable where both foreign-material detection and dynamic weight verification are required at the same inspection point.
What Makes InspeX Different?
Application Engineering First
Systems are configured around the actual product and line rather than selecting a detector from aperture width alone.
Metal Detection + Checkweighing
Standalone inspection technology and integrated combination systems in one portfolio.
Pipeline Inspection
Inspects pumped liquids, pastes, sauces, slurries and semi-liquid products — not only packaged goods.
Multiple Reject Technologies
Pusher, flap, air blast, belt stop and alarm strategies configured according to the application.
Data & Production Reporting
Inspection becomes part of the plant’s quality-data architecture rather than remaining an isolated device.
Complete Proc-X Integration
Integrated directly with upstream and downstream technologies as part of a complete inspection portfolio including metal detection, checkweighing, X-ray inspection, automated reject systems and production-data integration.
Engineering the Correct Inspection System
To properly specify an InspeX system, our engineering team evaluates the product (description, physical state, moisture, salt content, temperature, conductivity, density); package type (bag, pouch, carton, bottle, tray, container, foil, metallized film, unpackaged) and dimensions; production line speed, packages per minute, product spacing, conveyor height and direction of travel; detection requirements (ferrous, non-ferrous and stainless-steel sensitivity, required test-piece size); weight requirements (target weight, tolerance, required dynamic accuracy, production speed); reject requirements (pusher, flap, air blast, diverter, belt stop, alarm, lockable reject bin, reject confirmation); and the installation environment (dry, wet, washdown, corrosive, hazardous, sanitary). Only after these parameters are understood should the inspection system be finalized.
Inspection as Part of the Complete Process
Through Proc-X Manufacturing Group, InspeX systems can be integrated with AIS ingredient handling and dosing, DP milling, QuantumX mixing, EmulXion liquid processing, FuXion extrusion, PreciXion filling and packaging, and complete automation.
Raw Material Receiving → Dosing → Milling → Mixing → Processing → Metal Detection → Filling → Checkweighing → Final Inspection → Packaging
The objective is to create one connected production and quality-control system.
InspeX™ — Metal Detection, Checkweighing & Inspection Technology by Proc-X Manufacturing Group Inc.
QUOTE / TECHNICAL REVIEW
Talk to an InspeX Inspection Engineer.
Provide our team with product description, package dimensions, product weight, line speed, conveyor elevation, required metal-detection sensitivity, checkweighing tolerance, preferred reject method, sanitary requirements, and available installation space — we’ll help determine whether the application is best served by a conveyor metal detector, high-sensitivity metal detector, pipeline metal detector, gravity-fall detector, foil-compatible inspection system, dynamic checkweigher, combination metal detector/checkweigher, or a complete integrated inspection station.