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Pusher Reject Metal Detector 0.5mm Sensitivity Customized Tunnel Food Grade

The CQ-918 pusher reject metal detector catches ferrous, non-ferrous and stainless contaminants with Fe sensitivity from 0.5mm. It combines a food-grade conveyor, pneumatic pusher / flap rejection and a customizable 100-200mm detection tunnel in a SUS304 body, with phase tracking and 55-product storage for stable, easy operation. Ideal for meat, poultry, aquatic and seafood processing lines — fully customizable to your spec.
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Pusher Reject Metal Detector 0.5mm Sensitivity Customized Tunnel Food Grade
Pusher Reject Metal Detector 0.5mm Sensitivity Customized Tunnel Food Grade
Pusher Reject Metal Detector 0.5mm Sensitivity Customized Tunnel Food Grade
Pusher Reject Metal Detector 0.5mm Sensitivity Customized Tunnel Food Grade
Pusher Reject Metal Detector 0.5mm Sensitivity Customized Tunnel Food Grade
  • CQ-918

  • Chaoqiang

Chaoqiang · Pusher Reject Metal Detector

918 Pusher Reject Metal Detector — Precise Rejection, Zero Compromise

A conveyor metal detector with pneumatic pusher / flap rejection, phase-tracking intelligence and a customizable detection tunnel — catches ferrous, non-ferrous and stainless contaminants before they reach your customers.

918 pusher reject metal detector full machine with pneumatic rejection and stainless steel collection chute

Technical Specifications

Detection sensitivity is validated per tunnel height. The 918 accepts fully customized tunnel dimensions, rejection types and storage capacity for your specific production line.

Sensitivity Matrix by Tunnel Height
Tunnel Height (mm) 80 120 150 180 200 250 300
Fe (φmm) ≥0.5 ≥0.6 ≥0.7 ≥0.8 ≥1.0 ≥1.2 ≥1.5
Non-Fe (φmm) ≥0.8 ≥1.0 ≥1.0 ≥1.5 ≥2.0 ≥2.0 ≥2.0
304 SUS (φmm) ≥1.0 ≥1.2 ≥1.5 ≥2.0 ≥2.0 ≥2.5 ≥3.0
Note: Sensitivity above is measured under empty-machine condition. Actual detection sensitivity is affected by product characteristics and environment, and varies with the position of the metal contaminant.
General Parameters
Conveying Speed 25-30 m/min (adjustable)
Power Supply AC 220V ±10% · 50Hz · 120W
Detection Tunnel Width 400 mm (W) — or customized
Detection Tunnel Height 100-200 mm — or customized
Machine Dimension 1500(L) x 920(W) x 1010(H) mm
Rejection Method Pusher / Flap / Air-jet — customized per line
Storage Parameters 55 product groups — or customized
Frame & Body SUS304 stainless steel, food-grade

Newly Upgraded · Performance Enhancement

Six Reasons the 918 Outperforms

Every component is selected to keep your line running — precise detection, fewer false rejects and less operator intervention.

HD Sensitive Touch Screen

All-digital intelligent control board with LCD display, direction pad and six dedicated function keys. Set products, sensitivity and running modes directly on screen — no PC or specialist required.

Position the Metal Accurately

Advanced signal analysis locates the contaminant exactly on the belt, so the reject action is clean, repeatable and wastes no good product.

Imported Infrared Sensor

High-response infrared sensing triggers the reject unit the moment a contaminated item reaches the reject point — accurate every cycle.

Intelligent Imported Chips

Digital core built on original Japanese imported chips — the sealed coil keeps readings stable and immune to interference.

Automated Self-Learning

One-touch auto learning scans your product and sets the optimum sensitivity automatically — no manual parameter tuning required.

Stainless Steel Body

Mirror-polished 304 stainless steel frame stands up to moisture and washdown chemicals — no rust, no oxidation, long equipment life.

Core Engineering

Precision detection and reliable rejection start here — the head and belt are engineered to hold sensitivity at full line speed.

918 high precision detection head with red-lit detection tunnel

High-Precision Detection Head

The detection aperture is wound with high-temperature 3.5 copper wire in a full 360° loop and sealed once with resin — giving a stable magnetic field, strong immunity to interference and a long working life.

  • One-shot resin sealing — protected against moisture and vibration
  • Full 360° coil wrap for a uniform detection field
  • Fe sensitivity from 0.5mm (80mm tunnel)
918 pneumatic pusher reject mechanism on food grade conveyor

Food-Grade Belt & Pneumatic Pusher

Food-grade hygiene conveyor belt with a pneumatic pusher reject unit — contaminated products are pushed off the line into a stainless steel collection chute. Safe to place on any assembly line.

  • Food-grade specialized hygiene belt
  • Pneumatic pusher / flap / air-jet rejection (customized)
  • Stainless chute collects contaminants — easy cleaning

Product Details

Attention to every mechanical detail keeps the 918 stable in continuous operation and simple for your operators to maintain.

Belt guide rail assembly on 918 conveyor 1

Belt Guide Rail

Guides the belt so it runs straight and true — smooth tracking with no deviation.

Roller protective cover with safety warning on 918 2

Roller Protective Cover

Protective guard with pinch-point warning keeps operators safe around moving rollers.

All-digital intelligent control panel on 918 3

All-Digital Control Panel

Full-digital intelligent interface with LCD display, direction pad and function keys for quick setup and product switching.

SUS 304 material finish on 918 body 4

SUS 304 Material

Advanced 304 stainless steel — rust resistant and oxidation resistant in humid environments.

Mushroom emergency stop switch on 918 control panel 5

Emergency Stop Switch

Big mushroom-style emergency stop button gives operators instant, reliable machine shutdown.

Modular pull button latch design on 918 6

Pull Button Design

Tool-free modular latch opens panels quickly — maintenance and cleaning made simple.

New Features

The upgraded 918 adds production-grade data tools: phase tracking, automatic balance correction and FPGA digital processing — standard on every unit.

01 · TRACKING

Phase Tracking

Maintains stable high-precision detection capability as operating conditions change during production.

02 · COMPENSATION

Product Tracking

Automatically adjusts internal compensation according to changes in product effect — no manual re-tuning between batches.

03 · STABILITY

Automatic Balance Correction

Keeps the detection coil in balance automatically, guaranteeing machine service life and extending operation time.

04 · DIGITAL

FPGA + DSP Core

High-performance FPGA with DDS technology and advanced DSP data processing — higher digital level and stronger anti-interference performance.

05 · STORAGE

55-Product Storage + Interfaces

Store up to 55 product parameter sets, with optional USB and Ethernet data interfaces for line integration and traceability.

06 · PROTECTION

IP65 Waterproof Option

IP65 waterproof grade can be customized according to factory requirements for washdown environments.

Where the 918 Works

From bakeries to seafood plants — proven on the line across food, aquatic and poultry production.

Food Industry
Baked Goods
Cookie & Snacks
Meat Product
Desserts
Vegetables
Fruits
Coffee
Other Foods
Aquatic & Poultry
Shrimp
Fish
Claws
Meat
Poultry
Snail Meat
Squid
Other Meat

From Our Factory, To Your Line

We are a source manufacturer of inspection equipment — the 918 is built, tested and batch-run in our own plant.

918 metal detectors running in parallel production line at manufacturer factory
Source Manufacturer

We machine, assemble and inspect every unit in our own factory — factory-direct pricing with full quality control.

Fully Customizable

Tunnel size, belt speed, reject type and parameter storage are all configured around your product and production line.

Proven on Parallel Lines

Multiple 918 units running side by side in food plants — stable performance under continuous duty.

Batch Traceability

55 product parameter groups with optional USB / Ethernet data interfaces — meet audit and quality traceability requirements.

See Us at Trade Shows

Meet the Chaoqiang team at exhibitions worldwide — and bring your samples to test on the machine live.

Chaoqiang at the 2026 Shanghai exhibition
Chaoqiang at the 2025 exhibition
Chaoqiang at the 2026 Thailand exhibition
Chaoqiang at the 2026 Qingdao exhibition
Chaoqiang at the 2026 Wuhan exhibition
Chaoqiang exhibition booth

Get a Quote for Your Line

Tell us your product, belt width and tunnel height — we will configure the 918 to your exact spec.

Guangdong Chaoqiang Electronic Technology Co., Ltd · +86-18027086619 · lynn@chaoqiang1688.com
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