SME-8-K-LED-230 FESTO Magnetic Cylinder Switch T-Slot Proximity Sensor

Manufacturer: Festo
Product No.: SME-8-K-LED-230
Condition： In stock
Product Type: Proximity Sensor
Product Origin: USA
Payment: T/T, Western Union
Weight: 1000g
Shipping port: Xiamen
Warranty: 12 months

Quantity

Selected quantity: 1

Estimate delivery times: 12-26 days (International), 3-6 days (United States).

Return within 30 days of purchase. Duties & taxes are non-refundable.

Guaranteed Safe Checkout

Global PLC Spare HUB's Insight

Field maintenance technicians frequently face intermittent position feedback issues in high-speed pneumatic cylinder applications due to magnetic drift or improper slot retention. Drawing from our hands-on automation troubleshooting experience, the FESTO SME-8-K-LED-230 reed magnetic proximity sensor delivers reliable switching performance for standard T-slot actuators. Its robust IP68 construction and broad 3V to 230V AC/DC operating range make it an optimal choice for legacy and modern automated machinery alike.

Core Product Architecture

Designed specifically for standard T-slot pneumatic actuators and linear drives.
Utilizes a dependable magnetic reed measuring principle for direct contact switching.
Equipped with a high-visibility yellow LED for instant operational status tracking.
Features a flexible 2.5-meter TPE-U(PUR) cable with open-end connections.

Technical Performance Matrix

Technical Parameter	Specification Detail
Brand	FESTO
Model	SME-8-K-LED-230
Series	SME-8 Series
Product Type	Proximity Sensor
Measuring Principle	Magnetic reed
Switching Output	Contacting, bipolar N/O contact
Operating Voltage Range	3 V to 230 V AC / DC
Max. Output Current	120 mA
Max. Contact Rating	AC 10 VA / DC 10 W
Switching Frequency	Max. 500 Hz
Voltage Drop	≤ 3.9 V
Reproducibility / Repetition Accuracy	± 0.1 mm
Switch-on / Switch-off Time	2 ms / 0.03 ms
Ambient Temperature Range	-30°C to 60°C
Protection Class & Housing	IP68 rating, PET and stainless steel housing
Tightening Torque	0.2 Nm for T-slot clamp mounting

Installation and Setup Guidance

Slide the sensor longitudinally into the actuator T-slot from either end.
Position the sensing unit near the desired stroke endpoint using manual actuation for alignment.
Secure the mounting screw carefully to a maximum tightening torque of 0.2 Nm to prevent housing deformation.
Route the 2.5-meter cable away from high-voltage power lines to mitigate electromagnetic noise coupling.

Operational Diagnostics and Maintenance

Monitor the integrated yellow LED indicator during cylinder cycling to verify contact closure instantly.
Check the cable sheath periodically for signs of mechanical wear or chemical degradation in harsh environments.
Verify terminal screw tightness at control panel junction boxes annually to prevent high-resistance joints.

Equipment Compatibility and Application Scenarios

FESTO standard pneumatic cylinders and drives featuring T-slot profiles.
Automated assembly jigs requiring precise end-of-stroke position confirmation.
Material handling transfer lines operating under standard industrial temperature thresholds.

Logistics and Quality Assurance

Dispatched rapidly via secure courier networks including FedEx, UPS, and DHL within 24 to 48 hours.
Packaged in heavy-duty protective material to prevent transit damage.
Backed by a comprehensive 12-month operational warranty covering manufacturing defects.

Frequently Asked Questions

Question: Why does the sensor fail to trigger despite the piston magnet being directly underneath?

Answer: Verify that your operating load current meets the minimum 5 mA threshold required for reliable contact closure and check if the supply voltage falls within the 3V to 230V range.

Question: Can this unit handle inductive loads directly without external suppression?

Answer: It is engineered with adaptation for specific miniature coils, but adding an external RC snubber circuit is recommended for heavy inductive loads to maximize contact lifespan.

Question: What precautions are needed when installing the cable in low-temperature environments?

Answer: The permissible ambient temperature window shifts to -5°C to 60°C during flexible cable movement; avoid bending or pulling the cable below -5°C.

Question: Is the sensor polarity sensitive during DC hookup?

Answer: No, the bipolar contact design means it lacks polarity protection requirements, allowing flexible wiring integration.

Question: How can I prevent the sensor from sliding inside the T-slot under heavy machine vibration?

Answer: Ensure the 0.2 Nm torque limit is strictly maintained using a calibrated driver, and consider applying a thread-locking compound compatible with your panel environment if vibration is severe.

Expert Buying Guide

Confirm your cylinder actuation groove geometry matches standard T-slot specifications before purchasing.
Check your control system input card compatibility to ensure it accommodates AC/DC 3V to 230V switching parameters.
Estimate your required cable reach to ensure the 2.5-meter integrated line spans safely from actuator to junction box without splices.

12-Month Comprehensive Warranty

Every part supplied by Global PLC Spare Hub is covered by a 12-month warranty from the date of invoice.

Coverage: Functional defects and hardware failures under normal operating conditions.
Commitment: We provide immediate repair, replacement, or a full refund for any verified defective components to minimize your operational downtime.

Returns & Exchange Policy

We offer a 30-day return policy to ensure you receive the exact part your system requires.

Eligibility: Returns are accepted for uninstalled items in their original, factory-sealed packaging.
RMA Process: Please contact our support team to obtain a Return Merchandise Authorization (RMA) number before shipping.
Fast Processing: Refunds or exchanges are processed within 3–5 business days after the returned item passes our technical inspection.

Need Technical Assistance?Not sure if this part is compatible with your system? [Consult our Engineers] before purchasing to ensure 100% compatibility.