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SMCReed Switch Pneumatic Position Sensors

SMC Inline Reed Auto Switch: D-R731L, Inline Reed Auto Switch, IP67, 1500 V AC

The SMC D-R731L is an Inline Reed Auto Switch, a reed switch pneumatic position sensor. It features an IP67 rating, 1500 V AC dielectric strength, and a 2-wire configuration with LED indication. The switch operates…

SKU 3G-OTH-155424

Also listed as: DR731L · D R731L

Brand
SMC
Item
Inline Reed Auto Switch: D-R731L, Inline Reed Auto Switch, IP67, 1500 V AC
Category
Reed Switch Pneumatic Position Sensors
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Technical Specifications

SMC
Manufacturer Part Number
D-R731L
Type
Inline Reed Auto Switch, IP67, LED
AC
1500 V
Wires
2

Technical Documents

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SMC Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SMC D-R731L is an Inline Reed Auto Switch, a reed switch pneumatic position sensor. It features an IP67 rating, 1500 V AC dielectric strength, and a 2-wire configuration with LED indication. The switch operates with a current range of 5 to 40 mA (or 5 to 20 mA).

Frequently Asked Questions

What is the SMC D-R731L Inline Reed Auto Switch used for?

The SMC D-R731L is a reed switch pneumatic position sensor used to detect the position of a piston in pneumatic cylinders. It is commonly applied in industrial automation, packaging, and material handling systems where reliable, non-contact sensing is required.

What are the specifications of the SMC D-R731L?

The SMC D-R731L is an inline reed auto switch with IP67 protection, 1500 V AC dielectric strength, and a 2-wire configuration with LED indication. It operates with a current range of 5 to 40 mA (or 5 to 20 mA). The manufacturer part number is D-R731L.

Where to buy the SMC D-R731L worldwide?

You can source the SMC D-R731L through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install the SMC D-R731L reed switch?

Install the SMC D-R731L by mounting it on the cylinder body using the appropriate bracket, ensuring the switch aligns with the piston magnet. Connect the 2 wires to the control circuit, observing polarity for the LED. Test operation by cycling the cylinder.

Used in

Common applications for SMC
Automotive assembly — SMC ZP3 flat vacuum pads for handling small components in pick-and-place robots
Semiconductor manufacturing — SMC ZM series vacuum generators with needle valves for precise wafer handling
Food packaging — SMC AW-D series filter regulators for clean compressed air in pneumatic actuators
General industrial automation — SMC AS2211F speed control valves for regulating cylinder speeds in conveyor systems
Vacuum conveying — SMC ZH series box-type vacuum generators for material transport in packaging lines
Machine tool coolant systems — SMC ZF series in-line filters to protect vacuum ejectors from debris

SMC Products

3G Electric supplies SMC reed switch pneumatic position sensors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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