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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Customer recognition is our greatest motivation.
NEWS
Stay updated with the latest developments, product launches, and industry insights.
Micro Switch Roller Wear: Inspect the Target Interface Before Replacement
Micro switch roller wear should be inspected as a problem at the complete target interface, not judged from a noisy input alone. Examine the roller, its support, the lever, the cam surface and their relative movement. Record the original condition before cleaning or adjusting anything. A worn target, a loose bracket or an unsuitable approach can produce symptoms that resemble a worn switch roller, and fitting another switch without correcting that cause may repeat the problem. The LEMA KW7 product family includes the roller-lever form used in these illustrations. The pictured specimens are intact reference products; they are not evidence of a failed unit or a claim about a universal wear limit. Obtain the drawing and permitted operating conditions for the exact actuator variant. Define the symptom before naming the worn part Describe what the equipment actually did. Examples include a changing trigger position, a rough mechanical feel, an intermittent input or a target that no longer clears the lever. Record when the symptom occurs and whether it follows a particular direction, speed or portion of the machine cycle. Do not diagnose roller wear solely from an electrical trace. Contact behavior, wiring, input filtering and target movement can produce similar reports. Compare the mechanical observation with the isolated electrical state and the controller indication. The micro switch failure-mode guide provides the wider fault-boundary framework; this article focuses on the roller and the surface that drives it. Keep the original adjustment intact until it is documented. An immediate position change can make the machine run again while hiding the evidence needed to understand the wear process. Isolate the mechanism and preserve the original condition Follow the equipment's energy-control procedure before inspecting...
↗Micro Switch Transport Packaging: Protect Actuators, Terminals and Identity
Micro switch transport packaging should protect the housing, actuator, terminals and part identity throughout the intended shipping route. A strong outer carton alone cannot prevent a lever from being pressed by neighboring parts or a terminal from taking load inside a loose bag. Define how each component is supported, separated and identified, then evaluate the complete package under an appropriate distribution test plan. Do not treat the switch's own shock rating as proof that any shipping arrangement is acceptable. The LEMA KW7 family supplies the real product reference used here. The illustrated foam and cartons are planning examples, not a qualified package specification, a claim about an existing shipping process or evidence of a passed transit test. Map the product features that need protection Identify the parts most vulnerable to unintended contact: the actuator or lever, roller support, exposed terminals, mounting features and markings. Record the permitted handling conditions from the component documentation. A packaging review should distinguish a robust body surface from a functional feature that should not carry shipping load. Include the exact variant. A bare plunger, long lever and roller lever can require different clearances even when the housing dimensions are similar. A tray designed around one actuator should not automatically be approved for the whole product family. The actuator-selection guide provides background for those differences. Use the actual approved drawing and sample when defining compartment dimensions and the contact surfaces of a support. Support the housing without holding the actuator operated Locate the component on surfaces approved for handling and avoid pressing a lever, plunger or terminal into the packaging material. Provide clearance above the actuator and around its intended movement envelope. A package that looks...
↗Micro Switch Cleaning Solvents: Qualify the Process Before Exposure
Micro switch cleaning solvents must be assessed for the exact switch, surrounding materials and cleaning process before exposure. A cleaner that removes visible contamination is not automatically compatible with the housing, actuator, seals, markings, lubricant or contact system. Nor does a water-protection description establish resistance to a chemical bath, spray or ultrasonic process. Obtain the manufacturer's supported conditions and qualify the complete assembly instead of trying an unspecified solvent on production parts. The LEMA KW7 family is the visible product reference in this guide. The closed bottle and dry specimens in the figures illustrate process review only. They do not identify an approved cleaner, demonstrate a cleaning result or claim that the illustrated variant is sealed against chemical entry. Define why cleaning is being proposed Identify the contamination and the reason it must be removed. Flux residue, machining debris, oil, handling contamination and an external cosmetic mark are different problems. Record where the material is located and whether the proposed process can move it toward an opening or contact system. Also ask whether cleaning can be avoided by controlling the earlier process. A protective cover during assembly, cleaner handling or a revised material application may prevent contamination more reliably than a later cleaning operation. Such a change still needs review, but it can remove an unnecessary exposure. Do not clean a failure-analysis specimen before its condition is recorded. The failure-mode guide explains why preserving original evidence matters. A cleaned suspect part cannot reveal every feature of the original contamination event. Identify every material and interface at risk Review the housing, actuator, seals where present, terminal region, markings, adhesives and adjacent assembly parts. A chemical may affect one material while leaving...
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