DLS Tunnel Type Industrial Belt Metal Detector
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The DLS Tunnel Type Industrial Belt Metal Detector delivers uncompromising metal contamination protection for bulk material handling in mining, cement, and aggregate processing. Its tunnel-shaped sensor achieves 0.8mm ferrous / 1.2mm non-ferrous sensitivity while enabling retrofit installation without conveyor modifications - eliminating structural alterations and downtime.
Advanced detection capabilities in the DLS Tunnel Type Industrial Belt Metal Detector utilize multi-frequency signal processing to identify all metal types, including 304/316 stainless steel, within high-mineralization materials like iron ore or wet limestone. IP67-rated construction withstands dust, moisture, and vibration in -30°C to +70°C environments, ensuring reliable performance where conventional detectors fail.
Critical equipment protection includes automated rejection systems and real-time alerts. The DLS Tunnel Type Industrial Belt Metal Detector prevents crusher damage from grinding ball fragments or excavator teeth shards, reducing unplanned downtime by 45% in 24/7 operations.

Core Technology & Structural Advantages
  1. Non-Intrusive Tunnel Sensor Design
    • Eliminates Installation Downtime:The rigid, open-frame sensor wraps around the existing conveyor belt, requiring no belt cutting or splicing.
    • Optimized for Material Flow:Wide aperture accommodates high-volume throughput without compromising detection capability.
    • Enhanced Stability:Anti-vibration construction minimizes false triggers caused by normal belt movement or material impact.
    • This unique design is a core strength of the DLS Tunnel Type Industrial Belt Metal Detector.
  2. High-Sensitivity Detection Performance
    • Superior Contaminant Identification:Advanced multi-frequency digital processing detects small metal fragments (e.g., wire, bolts, tool fragments) reliably.
    • Handles Challenging Materials:Maintains accuracy in highly mineralized ores, wet products, or variable material conditions.
    • Automatic Material Compensation:Intelligently compensates for “material effect,” ensuring consistent sensitivity regardless of ore type or belt speed (1–3.5 m/s).
Key Operational Features

3. Seamless Integration & Control
Flexible Remote Operation: Control box supports operation up to 5 meters from the sensor head.
Automation-Ready: Provides relay output signals to trigger alarms, conveyor stops, or automatic rejection systems.
User-Friendly Adjustment: Simple sensitivity tuning via potentiometer or interface allows quick adaptation to specific production needs.

  1. Robust Construction for Demanding Sites
    • Built for Harsh Environments:Weatherproof enclosure (IP54 rating) and corrosion-resistant materials ensure reliable performance outdoors or in dusty, industrial settings.
    • Energy Efficient:Low power consumption (<60W) minimizes operational costs.
The Intelligent Choice for Metal Detection

The DLS Tunnel Type Industrial Belt Metal Detector combines installation simplicity, operational reliability, and advanced detection technology. By eliminating the need for belt modification, resisting false triggers, and performing consistently in tough conditions, it provides a low-maintenance, high-return solution for protecting your valuable equipment and ensuring the integrity of your bulk materials. Invest in the DLS Tunnel Type Industrial Belt Metal Detector for continuous operational security and enhanced productivity.

Product Parameters

Model

Parameter

Detection Accuracy

DLS

DB

TB

DH

GH

GB

L

A1

A2

A3

A

MZL

(Φ, Iron)

DLS500/300/100

500

300

100

330

700

300

 

 

220

200

500

1.1

DLS600/400/150

600

400

150

380

800

500

 

 

420

200

800

1.8

DLS700/500/200

700

500

200

430

900

500

 

 

420

300

900

2.3

DLS800/600/300

800

600

300

530

1000

600

 

175

520

360

1200

3.9

DLS840/600/350

840

600

350

580

1040

650

 

190

570

320

1350

4.2

DLS900/700/400

900

700

400

630

1140

650

 

190

570

420

1450

5.0

DLS1040/900/500

1040

900

500

680

1340

700

 

310

620

620

1600

6.3

DLS1240/1000/600

1240

1000

600

730

1440

700

 

310

620

680

1700

7.7

DLS1460/1200/700

1440

1200

700

830

1640

750

135

400

670

880

1950

9.5

DLS1580/1300/800

1580

1300

800

930

1760

800

150

450

720

940

2200

12.2

DLS1680/1400/900

1680

1400

900

1130

1880

900

160

500

820

1000

2700

M14

DLS1880/1600/1000

1880

1600

1000

1260

2080

900

160

500

820

1160

2900

M20

Critical Applications: Protecting Your Process & Equipment

The DLS Tunnel Type Industrial Belt Metal Detector is essential for preventing costly damage and ensuring product quality in key industries:

  • Mining & Ore Processing:Detects tramp metal (drill bits, bucket teeth, bolts) in iron ore, copper, coal, and other minerals before they reach crushers, screens, or grinding mills, preventing catastrophic equipment failure and unplanned downtime.
  • Cement Plants:Safeguards kilns, crushers, and mills by removing scrap metal contaminants from raw materials like limestone, clay, gypsum, and finished clinker.
  • Recycling Facilities:Protects shredders, granulators, and sorting equipment from damaging metal objects (wires, tools, fixtures) within incoming waste streams.
  • Aggregates & Quarrying:Prevents metal damage to crushers and screens in sand, gravel, and crushed stone operations.
  • Food Processing & Plastics (General Industry):Ensures product purity and protects processing equipment like extruders or mills from metal contamination (where applicable and not requiring food-grade specific certifications mentioned
 
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