The predecessor of Delixi was "Yueqing County Switch Factory", which was founded by Hu Cheng zhong and his brother Hu Chengguo in July 1984. At that time, there were only 3 shareholders, 50,000 yuan of capital and 8 employees, and the product was single thermal relay, and the registered trademark was "Le Qiu". Hu Chengzhong, with the "quality win" management and flexible mechanisms, grasp the market, catch the technology, catch the quality, finally standing out in Wenzhou electric appliance industry.

Delixi Limit Switch 德力西行程开关

Founded in 1984, CHINT is a leading global provider of smart energy solutions. It is actively deploying “4+1” industrial sectors including smart electrics, green energy, industrial control and automation, smart home and incubator, forming an integrated whole industry chain of “power generation, storage, transmission, substation, distribution, sales and consumption”. And it boasts an extensive business network across over 140 countries and regions as well as more than 30,000 employees and an annual sales revenue of over USD 11.4 billion. CHINT has been ranking among China’s Top 500 companies for 18 consecutive years. Its subsidiary, CHINT Electrics is the first company in China with low-voltage electrics as its main business getting listed on the A-share market as one of the Top 50 Asian listed companies.

CHINT Limit Switch 正泰行程限位开关

CNTD Electric Technology Co., Ltd., located at Yueqing Economic development zone, Zhejiang, China, has been specializing in industrial automation used switches since 2000, and is now an exemplary enterprise in our industry. As a leading industrial automation switch manufacturer and partner of many world top 500 companies, CNTD has been devoting to serving customers with both professional switch and sensor solutions.

Euchner Limit Switch - 安士能行程开关

Omron Corporation (オムロン株式会社, Omuron Kabushiki-gaisha), styled as OMRON, is a Japanese <a href="https://en.wikipedia.org/wiki/Electronics" target="_self">electronics</a> company based in <a href="https://en.wikipedia.org/wiki/Kyoto" target="_self">Kyoto</a>, <a href="https://en.wikipedia.org/wiki/Japan" target="_self">Japan</a>. Omron was established by Kazuma Tateishi (立石一真) in 1933 (as the Tateishi Electric Manufacturing Company) and incorporated in 1948.
The company originated in an area of Kyoto called "Omuro (御室)"(<a href="https://ja.wikipedia.org/wiki/%E5%BE%A1%E5%AE%A4" target="_self">ja</a>), from which the name "Omron" was derived. Prior to 1990, the corporation was known as Omron Tateishi Electronics. During the 1980s and early 1990s, the company motto was: "To the machine the work of machines, to man the thrill of further creation".

Limit switch is a <a href="https://en.wikipedia.org/wiki/Switch" target="_self">switch</a> operated by the motion of a machine part or the presence of an object. A limit switch can be used for controlling machinery as part of a <a href="https://en.wikipedia.org/wiki/Control_system" target="_self">control system</a>, as a safety <a href="https://en.wikipedia.org/wiki/Interlock_(engineering)" target="_self">interlock</a>, or as a counter enumerating objects passing a point.<a href="https://en.wikipedia.org/wiki/Limit_switch#cite_note-Herman09-1" target="_self">[1]</a>
Limit switches are used in a variety of applications and environments because of their ruggedness, ease of installation, and reliability of operation. They can determine the presence, passing, positioning, and end of travel of an object. They were first used to define the limit of travel of an object, hence the name "limit switch". 
Standardized limit switches are industrial control components manufactured with a variety of operator types, including lever, roller plunger, and whisker type. Limit switches may be directly mechanically operated by the motion of the operating lever. A <a href="https://en.wikipedia.org/wiki/Reed_switch" target="_self">reed switch</a> may be used to indicate proximity of a magnet mounted on some moving part. <a href="https://en.wikipedia.org/wiki/Proximity_sensor" target="_self">Proximity switches</a> operate by the disturbance of an electromagnetic field, by capacitance, or by sensing a magnetic field.
Rarely, a final operating device such as a lamp or <a href="https://en.wikipedia.org/wiki/Solenoid_valve" target="_self">solenoid valve</a> is directly controlled by the contacts of an industrial limit switch, but more typically the limit switch is wired through a control <a href="https://en.wikipedia.org/wiki/Relay" target="_self">relay</a>, a motor <a href="https://en.wikipedia.org/wiki/Contactor" target="_self">contactor</a> control circuit, or as an input to a <a href="https://en.wikipedia.org/wiki/Programmable_logic_controller" target="_self">programmable logic controller</a>.

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Delixi Limit Switch 德力西行程开关