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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Push Button Legend Marking Durability: A Verification and Purchasing Checklist
Push button legend marking durability means that the control's identification remains readable, correctly associated with the button and usable after the expected handling and cleaning exposure. A label that looks sharp on delivery can still be unsuitable if it lifts, loses contrast or becomes ambiguous in service. Specify the actual marking construction, panel surface, cleaning method and inspection criteria before ordering. This guide proposes a verification workflow for equipment buyers and designers; it does not claim a particular marking lifetime, a standardized abrasion result or a marking option for every LEMA PBS variant. Separate meaning from durability The first question is what the legend communicates. The second is whether it continues to communicate that message after use. Approving the wording does not approve the adhesive, substrate or printing process. Likewise, an intact label may still identify the wrong function after a control change. Keep the content approval and the physical durability approval linked but separately visible in the project record. For symbol interpretation, use the push button symbol guide. For the present review, identify the exact label position, legend revision and intended association with the physical control. A decision about an electrical schematic symbol does not establish the suitability of an external panel marking. A replacement label must match the approved function as well as the required physical construction. Define where the identification is carried A marking may be on the button cap, a separate legend plate, the surrounding panel or another approved surface. These arrangements face different handling and replacement conditions. A cap may receive direct finger contact. A surrounding plate may receive repeated cleaning without direct actuation. A panel marking may remain in place when the button is...
↗Push Button Operation with Gloves: Validate the Complete Operator Task
Push button operation with gloves should be validated with the actual glove, operator task and assembled panel. A larger button alone does not prove reliable use. Check whether the operator can identify the control, reach it without strain, press it deliberately, recognize the response and release it without touching a neighboring control. Keep the protective glove required by the workplace assessment throughout the evaluation. This guide provides a practical purchasing and trial checklist; it does not assign a glove-use rating to a switch or prescribe a universal button diameter, spacing or operating force. Define the task before selecting the button Begin with a short description of what the operator does. A brief reset once per shift differs from repeated hold-to-run actions, a setup jog and an occasional selection change. Record the normal starting position, the intended response and the consequence of a missed or unintended operation. Include whether the operator watches the button, the workpiece or another display during the action. These details determine what the trial must observe, rather than simply whether a volunteer can press a sample once. Treat the button, label, indicator and receiving control as an interface. A press that closes contacts may still be unsuccessful if the person cannot tell whether the command was accepted. Conversely, a visible indicator may confirm a command without proving the machine reached the requested state. Write down what each cue means. The equipment designer should determine the required protective functions separately; an ordinary push button and a favorable usability trial do not establish a safety-related control function. Keep the exact protective glove in the trial Specify the glove manufacturer, model, size, material, lining and condition. Include any underglove normally...
↗Hazardous Location Limit Switches: Review Approval Before Selection
Hazardous location limit switches must be selected against the area's classification, the substances present and the equipment's applicable approval conditions. A metal housing, an IP rating or a familiar roller lever does not establish explosion protection. Start with a competent site classification and verify the exact device and installation evidence before purchasing. The LEMA LZ1 product family is referenced here to explain ordinary mechanical-switch interfaces. This article does not claim that an LZ1 variant is approved for a hazardous location. Without exact applicable evidence, do not substitute an ordinary industrial switch into a classified installation. Establish the area classification before comparing switches “Hazardous” is sometimes used informally to describe any dangerous machine. Electrical hazardous-location selection has a more specific context: potentially explosive atmospheres and the requirements for equipment installed there. Mechanical trapping hazards, electrical shock and explosion risks can coexist, but they are different assessment questions. A switch suited to ordinary machine travel detection is not automatically appropriate for every environment around that machine. The HSE overview of ATEX and explosive atmospheres explains the relationship between potentially explosive atmospheres, workplace responsibilities and equipment requirements in its jurisdiction. Use the classification and rules applicable to the installation location. Do not translate an informal description such as “chemical factory” into an equipment approval requirement without the responsible site's documented assessment. Obtain the classification drawing and the substance information relevant to the switch location. The conditions at a loading point may differ from those in a nearby control room. The position of the enclosure, actuator and wiring route all matter. Purchasing should receive the approved requirements rather than being expected to infer a classification from a process photograph or the name of the...
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