Circuit breaker production line

The core function of circuit breakers is to quickly cut off current by detecting circuit faults (overload, short circuit, undervoltage, etc.). In modern power systems, circuit breakers are key protection and control equipment, and their production quality is directly related to the safe and stable operation of the power system. The circuit breaker assembly line is an automated production line for circuit breaker production and assembly. We focus on building an intelligent and efficient circuit breaker production line to provide excellent production solutions to customers around the world!

I. Key equipment and technology of circuit breaker assembly line

Our circuit breaker production line is highly automated and intelligent, and the core equipment includes:

1.  Parts processing equipment

  Contact forming equipment: multi-station cold heading machine (producing copper-based contacts), powder metallurgy sintering furnace (producing high-melting-point contacts).

  Arc interrupter assembly line: vacuum interrupter sealing furnace (ceramic-metal sealing, temperature 1300 ℃), SF inflator (accuracy ± 0.1%).

  Stamping and bending equipment: CNC turret press (processing conductive strips), hydraulic bending machine (forming insulating shells).

2.  Assembly and commissioning equipment

  Automatic assembly line: circular assembly line + robotic arm (complete contact installation and mechanism linkage), equipped with visual positioning system (error ≤ 0.1mm).

  Operating mechanism test bench: servo motor drive (simulating opening and closing actions), real-time collection of speed/force curve.

  Arc extinguishing performance test bench: high-voltage generator (simulating short circuit current), high-speed camera (recording arc shape).

 II. Overall assembly of circuit breaker:

Integrating the contact system, arc extinguishing system, operating mechanism and auxiliary components into the circuit breaker body, the key steps include:

  Shell assembly: Fix the conductive parts and arc extinguishing chambers to insulating shells (such as plastic shells or metal shells) to ensure the insulation distance between parts (such as low-voltage circuit breakers ≥ 8 mm).

  Mechanism linkage debugging: Connect the operating mechanism and the contact system, adjust the length of the transmission link to ensure smooth opening and closing without jamming.

  Sealing and protection (high-voltage circuit breaker): Air-filled sealing of SF circuit breaker (leak point detected by helium mass spectrometer leak detector ≤ 1 × 10 Pa·m ³/s); waterproof treatment of outdoor circuit breakers (IP65 protection level).

From Asia to Europe, from the Americas to Africa, our assembly lines have helped dozens of power equipment companies achieve production capacity improvements and quality upgrades. Choosing our circuit breaker assembly line is not only to choose a set of efficient production equipment, but also to choose a trustworthy long-term partner. We look forward to getting in touch with you and providing you with exclusive production solutions!