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
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Micro Switch Test Fixture: Separate Component Behavior from Setup Error
A micro switch test fixture should locate the component consistently, apply the intended actuator motion and observe the electrical event without adding uncontrolled force, movement or circuit effects. Define the measurement before building the fixture: continuity, operating position, release position and force are different questions. Use the exact switch drawing and supported conditions to establish references and limits. A fixture can produce repeatable numbers that are still wrong if it measures from the wrong surface, bends the lever or interprets contact bounce as several independent operations. Start with the decision the fixture must support An incoming continuity check asks whether specified terminals change state under defined movement. A travel measurement asks where a defined event occurs relative to a mechanical reference. A force measurement adds the load path, contact point and measurement direction. Life or environmental evaluation adds further conditions and evidence. Do not combine these decisions into one unexplained green light. State what is being measured, which configuration is represented and what result will support the intended acceptance or engineering decision. The KW7 product page identifies the relevant component family, but the fixture needs the complete candidate variant and controlled documentation. A bare plunger and a roller lever do not share every mechanical reference. If a fixture accommodates multiple variants, use controlled inserts or explicit setups and record which one was used. An operator should not be able to substitute an apparently similar switch and obtain a misleading approval simply because its housing fits between the same two locating blocks. KW7 switch beside a separate straight rod and disconnected caliper. Product-reference illustration; separate objects are not an approved installation or measured test result. Establish a stable location without distorting...
↗Micro Switch Lot Traceability: Link Delivered Parts to OEM Records
Micro switch lot traceability connects the component received by an OEM to its purchase specification, supplier lot, inspection decision and eventual assembly use. A readable bag label alone is insufficient: the relationship must survive repacking, partial issues, returns and work in progress. Start with the complete ordered part identity, preserve the supplier's actual lot information, and record every event that changes custody or disposition. Traceability supports investigation and containment; it does not prove that an untested switch is conforming or that every unit in a lot has identical performance. Define what must be traced before requesting labels For a Lemaele KW7 product inquiry, separate the family name from the exact configuration requested. Actuator form, terminal arrangement and the applicable controlled drawing belong in the purchasing record when they affect the assembly. A generic family description should not silently stand in for the agreed variant. Ask what identifiers the supplier actually provides and what each identifies. A date code may represent production time, packaging time or another event; its meaning needs confirmation rather than visual guesswork. Specify the investigation question that the records must answer. One OEM may need to locate unused material from a suspect shipment; another may need to identify assemblies containing a particular supplier lot. Those questions require different event records. Agree the needed level before delivery, including whether tracing is by supplier lot, package, internal batch or individual unit. Do not require serial numbers merely because a software system has a serial-number field. An identifier is useful only when its relationship to the physical material remains controlled. Separate KW7 specimens in individual trays beside blank identity cards. Product-reference illustration; separate objects are not an approved installation or...
↗Plunger Limit Switch Side Loading: Diagnose Alignment and Guide the Target
Plunger limit switch side loading occurs when the target or surrounding mechanism applies a transverse load instead of the intended motion along the actuator's permitted direction. It can arise from an angled approach, misalignment, a rubbing target, bracket movement or an inadequately guided part. Diagnose the complete interface before replacing the switch. A larger-looking housing or a deeper actuation setting does not automatically make an unsuitable approach acceptable. The LEMA HL compact limit-switch family supplies the bare-plunger reference used in the figures. The loose guide and target specimens are explanatory objects, not an approved fixture. This guide provides no universal side-force allowance, approach angle or travel limit; use the exact model drawing and manufacturer guidance. Identify the intended direction of actuation Start with the controlled actuator drawing. Identify the motion direction, contact surface, reference point and allowed working travel. Do not infer those details from a catalogue photograph alone. A plain plunger and a roller or lever actuator can require different target arrangements. The plunger selection guide addresses the wider selection context. This article focuses on identifying and removing unintended transverse loading in the machine-side interface. Record the installed orientation and the complete target path. A target can approach correctly at one position but move sideways relative to the plunger as the mechanism rotates, flexes or reverses. Review the movement that actually occurs rather than only the nominal centerline on a sketch. Separate side loading from excessive travel Side loading concerns force direction and contact geometry. Excessive travel concerns how far the actuator is driven. Both can occur together, but they are not the same problem and a correction for one may leave the other unresolved. Measure the relevant positions...
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