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+
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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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Limit Switch for Packaging Machines: Position and Jam Detection
A limit switch for a packaging machine is useful when a moving part must physically reach a defined position and send a discrete state change to the control system. It may confirm the position of an indexer, movable guide, actuator or service mechanism. It is not automatically the right sensor for every carton jam, film registration error or guard door. Start by defining the event, the machine sequence and the consequence of a missed signal; then select the switch, target and control interface from the exact drawings and requirements. Original LEMA LZ1 product-library view with a roller-lever actuator. Confirm the exact model code, ratings and environmental conditions before specifying it for a machine. Start with the machine event, not the switch name Write a short event statement before selecting a sensor. Examples include “the indexing plate reached its mechanical home position,” “the guide moved to the format-change setting,” or “a displaced package pushed a flap beyond its normal position.” State what should happen next in the PLC or controller. This connects the switch's physical action to the machine sequence and helps distinguish position confirmation from a fault response. Packaging lines combine repeated movement, product handling and machine guarding. A limit switch may be one input in a station sequence, but the signal should be identified by station, operating mode and expected state. If the signal is used for a protective function, stop the ordinary selection process and specify a safety-rated device and validated safety-control architecture for the required risk reduction. A general-purpose limit switch is not a safety interlock just because it changes state when a guard moves. Where position switches can fit in packaging equipment Different packaging machines create...
↗Limit Switch for Linear Actuators: End-of-Travel Control
A limit switch for a linear actuator can mean an internal end-of-travel device built into the actuator, an external mechanical switch placed along its moving path, or a signal input to the actuator controller. These are not interchangeable. Start with the actuator's own wiring diagram and operating limits, then decide what event must stop extension or retraction and how the controller will respond. A limit switch is a sensor and circuit element; it must not be treated as a mechanical hard stop or assumed to be a complete safety function. LEMA LZ8 product-library original showing two miniature limit-switch actuator forms. The photo is a product example, not a claim that this switch is a pre-wired linear-actuator kit. A distinct LZ8-series spring-rod product view. The target must match the chosen actuator head's specified direction and travel. First decide whether the actuator already has travel limits Read the exact actuator model documentation before adding a switch. Some linear actuators have built-in end switches, adjustable internal limits, encoder feedback or a controller that stops motion at configured positions. Others provide only motor power leads and expect the equipment designer to provide external control. The product name or stroke length alone does not tell you which arrangement is present. Draw the operating chain from the actuator to the machine controller. Identify which device senses the endpoint, what signal changes, which circuit interrupts or inhibits motion, and how the actuator is allowed to move in the opposite direction after reaching a limit. An internal end switch may open one motor direction while allowing reverse motion, or it may report state to a controller. An external switch may instead send a low-current input to a relay,...
↗Foot Switch Contact Ratings for AC and DC Loads
A foot switch contact rating is valid only for the voltage, current, current type, load category and operating conditions stated for the exact switch model. Do not treat a printed ampere value as permission to switch any motor or machine load. For an OEM design, compare the foot switch drawing and rated-load table with the real circuit, including inrush, switching frequency and the role of any relay or contactor. An original guarded LF-series pedal. Verify the exact contact rating and circuit variant separately from the pedal enclosure. An LF-series guarded-pedal product view. A guard can reduce unintended actuation, but it does not establish the electrical rating or complete machine safety. What a contact rating tells you A contact rating describes the electrical conditions under which the switch contacts are intended to make or break a circuit. It is not the same as a cable rating, a fuse rating, a motor nameplate current, or a guarantee of a particular number of years in service. A catalogue may state one or more combinations of voltage and current, an AC or DC mark, a utilization category, a motor horsepower value, or a defined load type. Read the table and notes together. If a model lists several ratings, use the line that matches the actual circuit, not the largest number on the page. Start with the full order code and current drawing revision. Record whether the pedal has a single or multiple circuits, the contact form, the unactuated and actuated states, and which conductors correspond to common, normally open and normally closed. The product-library drawing below shows example arrangements. It is a wiring reference, not evidence that every LF model has every contact form....
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