Waterproof and dustproofdesign (IP67)
Compact size andcompact structure
Long lifespan andhigh reliability
100% Manufactory
Set up since 2012, our company own the factory, and experienced.
PROFESSIONAL MANUFACTURER OF MICRO SWITCHES
Waterproof and dustproofdesign (IP67)
Compact size andcompact structure
Long lifespan andhigh reliability
Product Quality
Uiled have obtained relevant CCC, CQC, UL, VDE, CE, ENEC enterprise and relevant product certifications.
Sales Market
We have gained a global sales network reaching many countries over North America, South America, Europe, Africa and South East Asia.
After-Sales Service
A complete service network has been established to respond to user requests within 24 hours.
PRODUCTS
The core products include micro switches and travel limit Switch, push button switch, foot switch, toggle switch, AC power socket.
The core products include micro switches and travel limit Switch, push button switch, foot switch, toggle switch, AC power socket.
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ABOUT LEMA
Lema is committed to R&D, production and sales of industrial control electrical switches. The company's core products include micro switches and travel limit Switches, push button switches, foot switches, toggle switches, AC power socket.
After nearly 30 years of steady development, Lema has become a large-scale professional manufacturer of micro switches in China. The company currently covers an area of more than 11,000 square meters.
2000Years
Established in
40+
Exporting countries and regions
10000m2
Factory floor area
60+
Authentication certificate
APPLICATION
Committed to research and development, production, sales of industrial electrical switches and connectors
INDUSTRIAL
AUTOMATION
Industrial automation empowers smart manufacturing with reduced manual labor, higher precision, and greater efficiency.
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NEWS
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Push Button Acoustic Feedback: Specify Audible Confirmation Without Assuming Control State
Push button acoustic feedback is the sound an operator uses to recognize an action, such as a mechanical click or a deliberately generated confirmation tone. Specify what the sound means before specifying how loud it should be. A click can accompany mechanism movement without proving that the controller accepted the command or that the machine completed it. Evaluate audibility in the real workplace, with required hearing protection, and provide suitable state information through the equipment interface. A quiet office demonstration cannot establish reliable feedback on a running production line. This guide uses the LEMA PBS push button family as a construction reference. The product page describes button options and optional illumination; it does not publish a guaranteed acoustic output, sound spectrum or recognition performance. No sound rating is assigned here. Ask for exact-variant evidence and assess the finished panel before making an audible-feedback claim. Define which event needs confirmation A button press can involve several events: the operator moves the actuator, the contacts transfer, the input circuit detects the transition, the controller accepts a command, and the machine reaches a requested state. These events are related but not interchangeable. Write down which event the operator needs to know about and what action should follow if confirmation is absent. For example, an operator may need to know that a selection was registered while looking at a workpiece. Another task may require confirmation that a process has finished. The first can justify a short input-acceptance cue; the second requires evidence about the process state. Using the same undifferentiated beep for both can create uncertainty. Establish the meaning in the control specification before choosing a button or adding a sounder. Separate a mechanical...
↗Limit Switch Galvanic Corrosion: Review Dissimilar-Metal Mounting Interfaces
Limit switch galvanic corrosion is an interface problem to investigate when dissimilar conductive materials, an electrical connection and moisture can form a corrosion cell. Review the housing, mounting bracket, fasteners and cable-entry hardware together. Identify actual materials and finishes, remove avoidable moisture traps, and evaluate compatible barriers or coatings without compromising mounting strength or required electrical bonding. An enclosure ingress rating alone does not answer this question. The useful purchasing outcome is a documented mounting arrangement and an inspection plan, rather than a general statement that a metal switch is corrosion resistant. This guide uses the LEMA LZ1 limit switch family as a product reference. Its published aluminum-alloy housing makes external mounting interfaces a relevant discussion. No particular alloy, coating system, fastener combination, galvanic test result or marine approval is inferred here. Confirm the exact variant and installation requirements with the supplier before selecting protective measures. Recognize the complete corrosion path The NASA Kennedy Space Center explanation of corrosion forms describes galvanic corrosion in terms of dissimilar metals, an electrolyte and an electrically conductive path. Applied to a position switch, this means that reviewing the visible housing alone is insufficient. A fastener can connect a bracket to the housing, while a film of contaminated water connects exposed surfaces. A hidden thread or damaged finish can remain involved even when most of the outside looks clean. Start with an interface sketch. Mark each metallic contact and each place that can become wet. Include the screw thread, washer faces, bracket edge, entry adapter and any adjoining protective cover. Record whether water drains, remains trapped, or repeatedly dries and returns. This sketch is an engineering review aid, not a prediction of service life....
↗Foot Switch Electrostatic Discharge: Specify Assembly and System Evidence
Foot switch electrostatic discharge requirements must distinguish three questions: whether the pedal assembly can generate or retain charge, how any specified grounding or dissipation path is established, and whether the complete control system behaves acceptably during the required discharge tests. A metal enclosure, an ordinary protective-earth connection or an industrial product description does not answer all three. For an OEM buyer, the starting point is an application-specific requirement tied to the exact pedal, cable, connector and controller. Request evidence for that configuration before describing the foot switch as ESD-safe or suitable for an electrostatic protected area. Decide what the application needs to protect A pedal used beside exposed electronic assemblies raises different questions from a pedal controlling equipment that must remain stable during an external discharge. In the first case, the ESD program examines charge generation, nearby materials and interactions with sensitive items. In the second, the equipment evaluation examines system response to defined disturbances. Some installations need both assessments, but neither should be substituted for the other. Describe the work area, operator movement, flooring, footwear, sensitive products and control sequence. Identify whether the pedal is moved between stations, cleaned frequently or placed on different floor surfaces. Record where the cable and connector run relative to the work area. These practical details determine which assembly and operating state the evidence needs to represent. A laboratory result with another cable or surface may leave an important part of the application unassessed. The LF series foot switch is a reference for pedal construction and configurable wiring. Its general product description does not establish an ESD material classification, a dissipative path or immunity of a finished machine. Ask about the exact quoted assembly...
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