Special Micro Switch for MIG Welding Gun

As the benchmark model of Yueqing Tongda Wire Electric Factory's micro switch series, the Special Micro Switch for MIG Welding Gun features "high sensitivity, ultra-long lifespan, and multi-scenario adaptability" as its core advantages. Integrating the company's 35 years of switch manufacturing expertise, it has become a key control component in household appliances, automotive electronics, industrial automation, and other fields, thanks to its minimal contact gap and rapid action mechanism. Its performance and reliability have been certified by multiple authoritative organizations worldwide, securing its mainstream position in the niche market.

Model:HK-14-1X-16A-205

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Product Description

WEIPENG® is a leading Special Micro Switch for MIG Welding Gun manufacturers, suppliers and exporter.

Micro Switch Introduction

The HK-14 series adopts a core design featuring 'silver alloy contacts with patented rapid-action mechanism.' The contacts are made of AgSnO₂ silver-tin oxide alloy material and undergo a vacuum coating process, with a contact resistance of ≤50mΩ, ensuring stable current transmission without attenuation and effectively preventing signal delays or poor contact caused by contact oxidation. The trigger response time is ≤5ms, and operating stroke deviation is controlled within ±0.05mm, with trigger sensitivity far exceeding industry standards. To meet different mechanical trigger requirements, the series offers a comprehensive range of actuator lever combinations, including 8 types of levers: short-arm, long-arm, roller (available in nylon or metal), button, fork, etc., precisely matching various conditions such as rotary mechanisms, linear motion devices, and push-type controls.

Relying on the company's over 30 years of spring contact design experience, the HK-14 series uses high-resilience beryllium copper spring contacts, processed through 12 precision stamping and heat treatment steps. The elasticity decay rate is ≤3% (industry average is 8%), achieving exceptional performance with a mechanical life exceeding 1 million cycles and an electrical life of up to 100,000 cycles. Based on 60 high-frequency operations per day, it can reliably operate for more than 5 years. The core housing is made of UL94 V-0 flame-retardant PA66 reinforced engineering plastic, providing impact resistance, aging resistance, and UV resistance. It can withstand extreme temperatures from -25℃ to 125℃ and has passed 1000 hours of high and low-temperature cycle testing without performance degradation. The electrical operation frequency can reach 15 times/minute, and the mechanical operation frequency can reach 60 times/minute, making it perfectly suited for continuous operation scenarios such as industrial automation production lines and high-frequency household appliances.

Application Scenarios

Home Appliances: Microwave door control, washing machine program control, air conditioner fan speed adjustment, ensuring safe operation of equipment

Industrial Automation: Production line positioning, robot limit control, conveyor start-stop control, improving production efficiency by 35%

Automotive Electronics: Car window lifting, seat adjustment, trunk sensing, suitable for harsh in-vehicle environments

Medical Devices: Surgical equipment control, detection instrument signal triggering, meeting medical-grade safety standards

Military Industry: Weapon equipment control, communication device switching, adapting to extreme working conditions and high reliability requirements

Selection Recommendations

Choose specifications based on the rated current of the equipment and the type of load.

Determine the type of actuator rod according to the installation space and triggering method.

Consider environmental factors such as temperature and humidity when selecting the protection rating.

Special industries (medical, military) require models with corresponding certifications.

Micro Switch Parameter (Specification)

Switch Technical Characteristics:
ITEM	Technical Parameter		Value
1	Electrical Rating		5(2)A/10A/16(3)A/21(8)A 250VAC
2	Contact Resistance		≤30mΩ Initial value
3	Insulation Resistance		≥100MΩ (500VDC)
4	Dielectric Voltage	Between non-connected terminals	1000V/0.5mA/60S
		Between terminals and the metal frame	3000V/0.5mA/60S
5	Electrical Life		≥50000 cycles
6	Mechanical Life		≥1000000 cycles
7	Operating Temperature		-25~125℃
8	Operating Frequency		electrical :15 cycles Mechanical :60 cycles
9	Vibration Proof		Vibration Frequency : 10~55HZ; Amplitude :1.5mm; Three directions :1H
10	Solder Ability : More than 80% of immersed part shall be covered with solder		Soldering Temperature :235±5℃ Immersing Time :2~3S
11	Solder Heat Resistance		Dip Soldering :260±5℃ 5±1S Manual Soldering : 300±5℃ 2~3S
12	Safety Approvals		UL、CSA、VDE、ENEC、TUV、CE、KC、CQC
13	Test Conditions		Ambient Temperature :20±5℃ Relative Humidity :65±5%RH Air Pressure :86~106KPa

Micro Switch Feature and Application

1.Sate, reliable basic switch
2.Nice appearance,tight contiguration.Charactenistic:small contact dlearance,quick action, high sensitivity and small 3.operating travel.
4.Long lite, high reliablity
5.A variety of contact terminals
6.A varnety of temperature degree
7.A variety of levers
8.Adopt themosetting plastic or themoplastic
9.Widely usedinhome apliane elecroninc equipmentautomatic machine communication equioncar electron,apparatus and 10.instument,electric motion tool etc.

Micro Switch Details