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Piston position detection without physical contact — that's the core job Magnetic Switches handle for pneumatic cylinders, and it's exactly what makes accurate motion feedback possible in automated equipment. Mounted externally on the cylinder body, these switches pick up the piston's magnetic field and relay signals straight to the control system, keeping everything synced without any mechanical touchpoint wearing down over time.
Feishengya's Magnetic Switches fit round cylinders, compact cylinders, tie-rod cylinders, and other pneumatic actuator structures alike. They come in reed, NPN, and PNP output options, which means matching them to different PLC and control requirements isn't the headache it could be. Compact construction, sensitive response, practical mounting methods — put these traits together, and you get switches that improve cylinder monitoring, cut down on mechanical wear, and keep operations stable across packaging machinery, assembly lines, robotic fixtures, material handling systems, and general industrial automation setups.
Zhejiang Feishengya Pneumatic Components Co., Ltd.
Zhejiang Feishengya Pneumatic Components Co., Ltd. is a pneumatic component enterprise that integrates scientific R&D, production and processing, operation and sales, technical services, import and export trade, and personnel training. It specializes in the production, processing, and sales of pneumatic components such as cylinders, solenoid valves, and Magnetic Switch.
The company has always adhered to serving society with practical quality, high-quality service, comprehensive technology, and reasonable prices, and is committed to striving to create a "Chinese famous brand".
Our company has nearly a hundred advanced processing pieces of equipment. There are currently 120 employees, including over 20 professional and technical personnel, with an annual production capacity of 500,000 pieces (sets) of various components. We have advanced production processes, complete testing methods and equipment, and a high-quality workforce. We organize production and sales with a practical and innovative concept, and have passed ISO9001 international quality management system certification. We use CAD, SOLIDWORKS, and ERP for engineering design and enterprise management. Continuously increasing product development efforts and investment, continuously upgrading and improving equipment and products to meet customer needs with higher cost-effectiveness, and providing high-performance products and convenient and fast services to new and old users anytime, anywhere.
Magnetic Switch manufacturer - Feishengya Pneumatic adheres to the principles of "strict production, scientific management, continuous improvement, and stable quality with a rigorous and down-to-earth work style, a pioneering spirit of self-improvement, an honest and down-to-earth management style, and first-class production technology. Relying on the increasingly mature market system and flexible industry mechanisms, we adhere to the development path of technology oriented, outward oriented, and comprehensive, and provide more and better quality services for various industries.
All employees of Zhejiang Feishengya Pneumatic Components Co., Ltd. sincerely welcome friends from all industries to visit, exchange ideas and cooperate with us.
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Feishengya supplies magnetic switches built specifically for pneumatic cylinders, working closely with automation equipment manufacturers, mechanical engineers, pneumatic system integrators, equipment maintenance teams, and OEM/ODM projects. The goal is simple: help these teams get accurate piston position feedback, make installation less of a headache, and keep machine control steady over time. What sets Feishengya apart from suppliers that just sell off-the-shelf sensor models is our background — years of hands-on pneumatic component manufacturing, a solid grasp of cylinder compatibility quirks, and quality control practices built for equipment that needs to keep running reliably for years, not months.
A magnetic switch, at its core, is a small sensor that tells you where the piston sits inside a pneumatic cylinder. It mounts on the outside of the cylinder body and picks up the magnetic field coming from the magnet embedded in the piston. Because there's no physical contact involved, the switch never touches any moving internal parts — which cuts down on wear and keeps the signal reliable, especially in systems that cycle repeatedly, hour after hour.
In today's automated production lines, magnetic switches are the go-to way to confirm whether a cylinder has fully extended, retracted, or paused somewhere in between. That feedback loop is what lets PLCs, controllers, and broader machine systems keep every motion sequence synced properly.
A magnetic switch is a sensor built to pick up on magnetic fields inside pneumatic cylinders. As the piston travels and its internal magnet passes near the switch, the sensor flips its output state and fires a signal off to the control system.
You'll typically find this type of sensor used in:
It's worth pointing out that a magnetic switch isn't there to drive the cylinder — its job is purely to confirm position. That distinction matters, because it's exactly what makes the switch such a critical feedback piece in any automated pneumatic setup.
A pneumatic cylinder fitted with a magnetic piston generates a magnetic field around the piston itself. The magnetic switch sits either in a groove cut into the cylinder body or gets fixed in place using a mounting bracket. Once the piston reaches the detection point, that magnetic field is enough to trigger the sensor.
From there, the sensor sends an electrical signal off to whichever system needs it:
This is what allows the machine to double-check that a movement actually happened before it moves on to the next step — a small detail that ends up mattering a lot for both process safety and overall control accuracy.
Magnetic switches bring compact, contactless, and repeatable position feedback into pneumatic automation systems. Their value becomes especially clear when cylinders run continuously in high-cycle machinery.
The magnetic switch reads piston position without ever physically touching the piston itself. That contactless approach translates into less friction, less mechanical wear, and fewer maintenance headaches down the line.
For machinery that cycles cylinders frequently — think high-speed packaging or repetitive pick-and-place tasks — this non-contact setup goes a long way toward keeping operation stable over the long haul.
Because the switch itself is small, it fits into tight spaces around a pneumatic cylinder without much trouble. That compactness really pays off in machinery where room is already tight — robotic fixtures, packaging lines, assembly equipment, and similarly space-constrained setups.
Pick the right magnetic switch, and it'll give you dependable position feedback every time the piston hits the sensing point. That reliability translates directly into better motion sequence control and fewer errors coming from uncertain cylinder positioning.
In automated systems, this kind of repeatable detection matters for things like:
Most magnetic switches are built for mounting on the outside of the cylinder rather than inside it. Depending on what type of cylinder you're working with, that might mean fixing the switch through a slot, a bracket, a band, or a clamp.
Because it's an external mount, adjusting or swapping out the switch later doesn't require tearing the cylinder apart.
Magnetic switches aren't picky about cylinder structure — they work across round cylinders, compact cylinders, tie-rod cylinders, and profile cylinders alike. That said, picking the right one still comes down to a handful of factors: the cylinder's groove type, available mounting space, operating voltage, cable direction, and what output signal the system actually needs.
Selecting a magnetic switch correctly means looking at both the cylinder and the control system. Mounting style, signal type, wiring layout, and operating environment all influence whether the switch performs reliably in real production conditions.
Not every cylinder mounts the same way, so before picking a magnetic switch, it's worth checking exactly what you're working with. Does the cylinder have:
Getting the mounting right isn't just a formality — it's what keeps the sensing distance stable and stops the switch from shifting out of place when the machine vibrates.
The switch has to speak the same language as your control system. Common output types include:
Before finalizing a choice, it's worth double-checking the PLC's input type, the voltage range, how it'll be wired, and the load current involved.
Industrial floors aren't gentle — dust, oil mist, vibration, moisture, and temperature swings are all part of the territory. To keep the switch performing reliably under those conditions, pay attention to the housing structure, cable quality, protection rating, and how securely it's mounted.
This matters even more in packaging machinery, food-related equipment, and production lines running around the clock — environments like these can wear down a sensor's lifespan fast if the resistance isn't up to par.
Magnetic switches typically come either with a direct cable lead or a connector option. Which one fits depends on the machine layout — cable length, how much bending it'll endure, and which direction the wiring needs to run all factor in.
Route the cable well, and you'll avoid a lot of the signal dropouts that come from cable stress or constant movement wearing things down over time.
Magnetic switches fit naturally into pneumatic automation systems where cylinder position confirmation matters. From simple end-position detection to coordinated PLC-controlled motion sequences, they help keep machinery predictable and synchronized.
On automated assembly lines, magnetic switches keep tabs on when a cylinder extends and when it retracts. That kind of feedback is what lets the system confirm one step actually finished before it lets the next one start.
Packaging machinery leans on cylinders for a lot — pushing, lifting, sealing, clamping, sorting, you name it. Magnetic switches feed back into that whole sequence, making sure each action lands in the right order.
Robotic arms, pneumatic grippers, transfer mechanisms — all of these rely on magnetic switches to confirm the basics: did it grip, did it release, did it push or land in the right spot.
Conveyor systems, loading devices, transfer units — anywhere cylinders move material around, position feedback helps things stay coordinated and cuts down on downtime caused by motion timing going wrong.
Beyond these specific cases, magnetic switches fit into pretty much any pneumatic control system that needs to know where its cylinders stand. That visibility is what makes automation more predictable and easier to trust day to day.
Feishengya's magnetic switch solutions are built around practical pneumatic use, not just standalone sensor supply. Cylinder compatibility, mounting reliability, signal stability, and long-term operation all shape the way these switches support industrial automation equipment.
Because Feishengya makes pneumatic components in-house, we understand how magnetic switches actually work alongside cylinders, solenoid valves, fittings, and the rest of a pneumatic control setup — not just in theory, but in real installations. That kind of hands-on background is what lets us build products that hold up under actual industrial conditions, not just lab tests.
Consistency is the priority at every stage — production, inspection, and how the finished component actually performs once it's out in the field. For a magnetic switch running on automated equipment, that means steady sensing output and a mount that stays put, cycle after cycle, day after day. That's what keeps machines running the way they're supposed to over the long run.
For equipment manufacturers and teams handling project-based pneumatic systems, Feishengya helps narrow down the right switch model based on cylinder type, output mode, mounting method, and whatever the specific application calls for. That kind of support takes a lot of the guesswork out of matching components during both the design phase and later maintenance.
As a China-based magnetic switch supplier with real pneumatic manufacturing capability behind it, Feishengya supplies switch solutions built for industrial automation, machinery manufacturing, packaging systems, and pneumatic control applications worldwide.
Phone: +86-15957736756
E-mail: [email protected]
Add: No.7, Yongxing Second Road, Chengdong Industrial Functional Zone, Chengdong Subdistrict, Yueqing City, Zhejiang Province, P.R.China
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