Made For Rough Industrial Applications

The MPI SHARK® BIG Metal Detector is a heavy-duty, large-aperture detection system engineered to inspect oversized products and bulk materials for metal contamination in rugged industrial environments. Designed for wood processing, paper recycling, rubber bales, and heavy plastics applications, the SHARK® BIG is built to detect ferrous, non-ferrous, and stainless-steel contaminants in dense, irregularly shaped, or high-volume loads. Its reinforced frame, customizable aperture sizes, and advanced signal processing ensure accurate contaminant detection while withstanding the demanding conditions of bulk handling facilities. Whether mounted over or around conveyor belts, the SHARK® BIG helps protect downstream equipment, reduce maintenance costs, and ensure compliance with quality assurance programs.

Benefits of the BIG Metal Detector From Magnetic Products, Inc

  • Oversized Tunnel Aperture for Large Products

It accommodates massive and irregular materials like logs, bales, or bulk scrap with aperture widths up to several meters, making it ideal for heavy-duty applications.

  • High-Penetration Signal Processing

Advanced digital technology provides deep detection sensitivity through dense or conductive products, including wet wood, compressed paper, and rubber.

  • Reinforced, Vibration-Resistant Design

Built with a rugged, mechanically stable frame and shock-resistant housing to ensure long-term performance in high-impact environments.

  • Multi-Metal Detection Capability

It simultaneously detects ferrous, non-ferrous, and stainless-steel contaminants, even under challenging conditions involving large loads and material effects.

  • Wide Conveyor Integration Flexibility

It installs easily over or around belt conveyors and is compatible with high-speed, high-capacity lines in the wood, recycling, and material recovery industries.

  • Easy-To-Use Control System

Includes a user-friendly interface with auto-teach calibration, reject signal outputs, data logging, and multilingual menu options.

  • Weather-Resistant and Sealed Construction

Optional IP65 or IP69K enclosures are available for outdoor, dusty, or washdown environments, and they are ideal for mills and open-air recycling facilities.

  • Improved Safety and Equipment Protection

Early tramp metal detection prevents costly damage to shredders, grinders, saws, and other downstream equipment, increasing system uptime.

 

BIG Metal Detector Product Details

How It Works

The SHARK® BIG Metal Detector operates as an inline detection system positioned around or above a conveyor carrying large, dense products. As materials pass through the oversized tunnel aperture, the system generates a balanced electromagnetic field that envelops the entire conveyor load.

When a piece of metal—ferrous, non-ferrous, or stainless steel—enters the detection zone, it disrupts this electromagnetic field. The disruption is instantly identified by the detector’s digital signal processor, which evaluates the disturbance and compares it to stored product compensation profiles.

Upon confirmation of contamination, the system triggers an alarm, stops the conveyor, or activates a reject signal (depending on the integrated control logic). Operators can then isolate the contaminated section or divert the load for further inspection or removal. The SHARK® BIG adapts to harsh environmental conditions and variable product characteristics to ensure consistent performance and minimal false rejects.

Product Options

BIG Metal Detector Specification Table

BIG Detector Specification Drawing
US Customary Units
MD-BIG COMPONENT FEATURE METAL DETECTING FOR CONVEYOR INSTALLATIONS
Control ElectronicsDigital signal processor, digital noise filter, digital balance control, digital frequency control with synthesizer, Power-Drive-Transmitter-Circuit, suitable with multi-frequency sensors, powerful graphics processing unit
Input Signals8 free configurable, 24 V D.C., e.g.: reject confirmation, air pressure monitor, conveyor belt control
Output Signals2 potential free: Metal and Error; 8 free configurable, 24 V D.C., e.g.: pusher magnetic valve, optic/acoustic alarm
Measuring MethodInductive; multi-channel operation, balanced receiver coils
Metal DetectionFerrous, non-ferrous (e.g. aluminum or copper) and stainless steel
Product Compensation120 storage spaces, compensation performed automatically, with Teach-Assistant
Protection TypeIP65; with Option LPW: IP66; with Option HPW: IP67
AmbienceStandard: temp. -10°C to +40°C, rel. humidity 30 to 85% not condensing; Options: -40°C or +55°C
Product Temperature-30°C to +60°C
Power SupplySingle-Phase 110 - 240 VAC, 50/60 Hz, fuse 10 A (slow), typ. power consumption 20W, max. 60W
InterfacesRS232, USB, optional Ethernet
MaintenanceMaintenance-free, sensor calibrates itself automatically and continuously
DiagnosisIntegrated diagnostic software, automatic self-test

BIG Metal Detector Installations & Variations

MPI's Cassel BIG Detector Made For Abrasive Chemical Application

BIG Detector Made for Abrasive Chemical Manufacturing Application

MPI's Cassel BIG Detector Made for Wood Chip and Pulp Application

BIG Detector Made for Wood Chip and Paper Pulp Applications

MPI's Cassel BIG Detector Made for Ore and Aggregate Processing

MPI's Cassel BIG Detector Made for Ore and Aggregate Processing