WDA Speed and Belt Misalignment Sensor: Contactless Monitoring for Elevators and Conveyors

Looking for a reliable speed and belt misalignment sensor? WDA from 4B Braime Components (UK) is an extended-range contactless sensor for detecting moving ferrous metals. It's perfect for bucket elevators, monitoring bucket rotation, belt speed, and misalignment. Detects targets up to 100 mm away, including ferrous bolts even with non-metallic buckets. Prevents accidents, downtime, and equipment damage at grain elevators, feed mills, and flour mills.

Advantages of WDA 4B Speed and Misalignment Sensor

Why choose WDA 4B Braime?

• Contactless operation: Inductive detection without wear, accuracy to 1% deviation.

• Extended range: Up to 100 mm distance, sensitive to ferrous metals and bucket bolts.

• Comprehensive control: Simultaneously monitors speed, belt misalignment, and bucket presence.

• Harsh condition resistance: IP67 housing, -40°C to +120°C, ATEX Zone 20/21 dust compatible.

• Automated integration: Instant shutdown signal on >5 mm misalignment or >10% slip.

How WDA Sensor Works in Elevators and Conveyors

The WDA speed and misalignment sensor mounts 50–100 mm from the belt or buckets. It generates pulses from passing metal elements (buckets, bolts), counting rotations for speed calculation. On belt misalignment (5–15 mm deviation) or speed drop — relay triggers emergency stop. This protects against:

• Belt or chain breakage

• Bucket fall into shaft

• Uneven load on rollers and bearings

Main WDA Models

WDA3V34CAI — Standard Model for Elevators

Extended inductive sensor with 4-20 mA output. Detection range: up to 100 mm. Output: SPDT relay, PNP/NPN. Ideal for bucket elevators with ferrous metal buckets. Protection: IP67, ATEX.

HTAS1V34 — Heavy-Duty Variant

Reinforced housing for high-humidity and dusty environments. Enhanced bolt sensitivity. Range: 80–100 mm. Output: Modbus RTU. Suitable for port conveyors.

Compatibility with 4B Systems

Integrates with Watchdog™ Super Elite, T500 Elite, Elite A400 control unit, Siemens/Schneider PLCs. No additional markers required.

Application Areas

Ideal for:

• Bucket elevators (50–1000 t/h)

• Belt conveyors in warehouses

• Feed mills

• Flour milling complexes

• Ports with bulk materials

Installation on Bucket Elevator

On a 40 m elevator belt, WDA3V34CAI mounts near bucket passage. 10 mm misalignment — automatic correction or stop. System blocks loading, payback — 4 months.

Use on Conveyor

For a 200 m belt line, HTAS1V34 monitors roller speed. Slippage — PLC signal, preventing rupture.

Technical Specifications

• Detection type: Inductive, contactless for ferrous metals

• Range: Up to 100 mm (bolts — 50 mm)

• Response time: 0.2–0.5 seconds

• Output: SPDT relay (250 V / 5 A), 4-20 mA, Modbus

• Power: 24–240 V AC/DC

• Protection: IP67, ATEX Zone 20/21

• Temperature: -40°C … +120°C

• Material: AISI 316 stainless steel, polycarbonate

Certification

• ATEX Zone 20/21 (explosive dust)

• IECEx, DSTU

• Compliance certificates

Warranty & Service

• 24-month warranty

• Official 4B distributor in Ukraine — KCK.ua

• Installation, commissioning, staff training

Order WDA speed and belt misalignment sensor from KCK.ua with delivery across Ukraine (Kyiv, Kharkiv, Odesa, Dnipro, Lviv). Ensure precise control for elevators and conveyors.

Prevent belt misalignment — order now! Order: +38 (044) 494-33-55 | kck@kck.ua

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