BDC Electronic proximity switches and sensors

BDC Electronic S.r.l. industrial sensors: M8-M30 inductive proximity switches, DF slot sensors, capacitive units, magnetic switches, and gear tooth speed sensors.

Cylindrical Inductive Proximity Sensors M8 to M30

BDC Electronic cylindrical inductive proximity sensors in M8, M12, M18, and M30 threaded housings detect metallic target positions across automated equipment. Units are engineered in nickel-plated brass and polymer enclosures with resilient IP67 environmental sealing.

Standardized metric threaded bodies M8, M12, M18, and M30 for machine tooling
Direct current switching configurations PNP and NPN with built-in protection
Flush and non-flush sensing face geometry for flexible mechanical assembly
Two-wire intrinsically safe NAMUR output circuitry complying with DIN norms

Inductive Slot Sensors Series DF, DCF, and ACF

BDC Electronic inductive slot switches in DF, DCF, and ACF series monitor the transit of metallic vanes, rotating discs, and linear guiding flags through a calibrated groove. Available aperture widths extend from two to thirty millimeters for tight positioning.

Calibrated sensing slot apertures from 2 mm to 30 mm for rotary disk tracking
Direct current DCF and alternating current ACF models with integral triggers
Two-wire intrinsically safe DF series slot devices for hazardous environments
Sturdy polybutylene terephthalate plastic bodies with through-hole mountings

Capacitive Proximity and Level Sensors M18 and M30

BDC Electronic capacitive proximity sensors in M18 and M30 cylindrical builds detect metallic and non-metallic substances, dry bulk granules, and liquid media through vessel walls. Units incorporate sensitivity trim potentiometers and clear LED status lights.

Contactless detection of liquids, granular pellets, and bulk dry materials
Integrated multi-turn trimmer for fine sensitivity calibration in tooling
Threaded metric housings M18 and M30 engineered with tight protective sealing
Internal circuitry compensating for ambient humidity and temperature shifts

Magnetic Proximity Sensors with Reed and Hall Elements

BDC Electronic magnetic proximity switches in MS and MC series register the motion of external permanent magnets or ferromagnetic markers through non-magnetic barriers. The range includes sealed Reed contact switches and solid-state Hall semiconductor devices.

Switching actuation through non-magnetic stainless steel alloy cylinder walls
Hermetically sealed Reed contact modules providing dependable signal delivery
Solid-state semiconductor Hall switches offering virtually unlimited life
Matching permanent magnets in threaded studs and compact cylindrical blocks

Speed and Direction Sensors for Toothed Wheels

BDC Electronic precision gear tooth speed sensors calculate rotational frequency and movement vector by detecting passing teeth of ferromagnetic steel wheels. Fabricated in stainless steel housings, instruments feature single or dual quadrature output channels.

Accurate tracking of toothed gear wheels with pitch gear modules from 1 to 4
Dual-channel quadrature output with 90-degree phase shift for vector direction
Stainless steel alloy housings sealed against intense mechanical vibration
Broad frequency operating span delivering clean square pulses up to 20 kHz

Interface Amplifiers AM-OP and Connectors M8 / M12

The BDC Electronic accessory family encompasses optocoupled switching units AM-OP, relay output blocks AM-RL for DIN rail mounting, and industrial M8 and M12 wiring connectors. Components provide robust signal isolation and noise immunity in control cabinets.

Optoelectronic galvanic isolation shielding sensor field lines from plant PLCs
Relay switching output units AM-RL built for dependable control circuitry
Straight and angled 90-degree M8 and M12 cable plugs rated up to IP68 ingress
Oil-resistant polyurethane and shielded wiring harnesses for flexible tracks

Electromagnetic induction principles in BDC Electronic proximity sensing

BDC Electronic inductive proximity sensors operate through variations in the high-frequency electromagnetic field generated by a coil within an open ferrite core at the sensing face.

When any electrically conductive metallic object enters the active detection zone, induced eddy currents absorb energy from the oscillation circuit, causing an amplitude reduction in the internal oscillator.

An integrated Schmitt trigger translates this dampening into a crisp logical switching signal delivered by the solid-state output stage.

The absence of mechanical contacts completely eliminates physical wear during continuous switching cycles across automated assembly lines and tooling installations.

Application criteria for slot-type inductive devices DF, DCF, and ACF

Slot-type inductive sensors in DF, DCF, and ACF series by BDC Electronic are designed for the high-precision detection of moving plungers, rotating cams, guiding flags, and toothed discs.

Transmitting and receiving coils are positioned opposite each other across a U-shaped groove, establishing a focused electromagnetic barrier within a calibrated aperture from two to thirty millimeters.

When a metallic vane enters the slot, the magnetic coupling is interrupted, creating an immediate voltage shift free from contact bounce or lateral guide play. Intrinsically safe DF models with NAMUR output operate in hazardous processing areas, while DCF and ACF units drive control relays.

Capacitive detection methods for dry bulk materials and liquid levels

BDC Electronic capacitive proximity switches in M18 and M30 formats utilize the capacitance variation between open sensing electrodes and surrounding media.

When any dielectric or conductive material approaches the front plate, the permittivity of the environment shifts, triggering the high-frequency circuit.

This allows dependable monitoring of liquid levels inside non-metallic vessels, polymer pellets in injection molding hoppers, and dry powders through non-metallic sight windows.

A multi-turn adjustment trimmer situated on the rear face permits precise tuning of the sensitivity threshold to match the specific dielectric permittivity of the target material.

Magnetic proximity switching and hydraulic cylinder position monitoring

BDC Electronic magnetic sensors in MS and MC series monitor the travel of pistons within pneumatic and hydraulic cylinders as well as safety flaps through non-magnetic metallic partitions.

In Reed switch models, contact actuation occurs under the external magnetic flux of a permanent magnet with zero standby power draw. Solid-state Hall effect sensors provide virtually unlimited switching longevity, rapid response, and complete immunity to shock and vibration.

Fully potted internal electronics ensure reliable operation when exposed to industrial lubricants, cooling emulsions, and ambient humidity during continuous production cycles.

Rotational frequency and movement direction monitoring on toothed wheels

Dedicated inductive and magnetoresistive gear sensors from BDC Electronic measure rotational speed and determine the movement vector of toothed wheels, power transmission shafts, and turbines.

Instruments are mounted with minimal gap relative to the steel gear profile, delivering clean square pulses as each tooth passes the sensing element.

In dual-channel models, two integrated sensor elements are spaced by half a pitch, generating two quadrature signals with a ninety-degree electrical phase displacement.

This arrangement enables the host automation controller to determine rotational direction, monitor acceleration, and register unexpected machinery stops.

Signal conditioning with AM-OP amplifiers and industrial wiring guidelines

BDC Electronic AM-OP interface amplifiers provide galvanic isolation and signal enhancement for field sensors prior to input into programmable automation controllers.

Optoelectronic isolation suppresses common-mode interference, ground potential loops, and high-voltage surges induced by variable frequency motor drives.

Industrial M8 and M12 cable assemblies with gold-plated pins and oil-resistant polyurethane jackets preserve IP68 sealing across dynamic cable tracks and robotic joints.

Proper termination of cable shielding to cabinet earth bars prevents false switching signals in dense electromagnetic plant environments.

BDC Electronic and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of BDC Electronic and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.