TN Series Metal Detectors

The TN77 Industrial Metal Detector is built to safeguard processing equipment by detecting and locating tramp iron and manganese steel hidden in conveyed materials. Typical contaminants include digger teeth, drill rods, and crusher liners that, if not removed, can cause severe damage to crushers, screens, and conveyors. By catching these hazards early, the TN77 helps prevent equipment breakdowns, unplanned downtime, and costly repairs.

Designed as a tunnel-type unit, the TN77 is easy to install on both new and existing conveyor systems. The split-frame coil makes it possible to fit the detector without cutting the belt, reducing installation time and disruption. Once in place, the TN77 provides continuous inspection of bulk materials such as sand, gravel, coal, limestone, and ores, ensuring reliable protection in high-throughput operations.

Operators value the TN77 for its straightforward controls, low maintenance requirements, and consistent performance in tough environments. Its weather-resistant construction makes it suitable for dusty processing plants as well as outdoor installations in quarries and mines. With adjustable sensitivity settings and the ability to detect multiple pieces of tramp metal simultaneously, the TN77 delivers dependable performance across a wide range of applications.

Reliable Tramp Metal Detection
Identifies ferrous metals and manganese steel such as digger teeth, drill rods, and crusher plates before they reach critical equipment.

Prevents Equipment Damage and Downtime
Stops tramp metal from entering crushers, screens, and conveyors, reducing wear, maintenance costs, and unexpected shutdowns.

Easy Installation on Existing Conveyors
Split-frame coil design fits around non-metallic belts without cutting, making retrofit installation fast and simple.

Continuous, Automated Protection
Provides uninterrupted monitoring of conveyed materials with options to trigger alarms, interlocks, or automatic rejection systems.

Built for Demanding Environments
Weather-resistant and dust-tight construction ensures dependable performance in outdoor and heavy-duty processing conditions.

Adjustable Sensitivity
Fine-tune detection levels to match specific materials and processing requirements while avoiding false trips.

Low-Maintenance Operation
With no moving parts and rugged components, the TN77 delivers long-term protection with minimal service needs.

Industries
Quarrying, mining, mineral processing, bulk material handling

Materials Handled
Sand, gravel, crushed stone, coal, limestone, gypsum, mineral ores, bulk raw materials

Conveying System
Non-metallic conveyor belts; easily dismantled for installation around existing conveyors

Frame Construction
Split-frame design for simple installation; weather-resistant for outdoor and dusty environments

Separation Targets
Ferrous metals and manganese steel, including digger teeth, drill rods, crusher plates, bars, chains, nuts, and bolts