What does “VCB automatic production line delivery” include?

The delivery of a fully automated production line for Vacuum Circuit Breakers (VCBs) is not simply shipment of equipment, but is actually a fully engineered project comprising design, manufacture, factory acceptance test (FAT), installation, site acceptance test (SAT), and training. Over 20 VCB assembly and test lines have been delivered by Benlong to customers in Europe, Asia, the Middle East, and South Americas all built to IEC 62271‐100.

Typical delivery timeline for a VCB automatic production line

Typically, the complete delivery process will take 4–6 months between when your order is confirmed and when it is accepted. For example, a typical delivery time for a 12kV/24kV line will be 4 to 6 months, but if you require a custom voltage rating (e.g. 40.5kV) or additional automation, that could add another 30–60 days to the delivery time.

What makes Benlong’s VCB line delivery different?

• Pre‑FAT with your actual VCB samples To avoid surprises during on-site commissioning, prior to shipment, we will test the entire line with your vacuum interrupters and mechanisms.
• Full documentation package – The components of this package are as follows; 3D layout drawings, electrical schematics, PLC code backup, HMI screens, and spare parts lists.
• Remote diagnostics ready Using a VPN connection, Benlong engineers can troubleshoot and update software on each line remotely, minimizing downtime.
• Modular design for easy installation By pre-fabricating, assembling and testing conveyors and test stations in modules prior to delivery, this can reduce installation time at your facility by as much as 40%.

Customer success story: 12kV VCB line delivered to a European switchgear manufacturer

A European medium-voltage switchgear manufacturer was provided with a fully automatic VCB production line in Q4 2025. The line consists of:

• Vacuum interrupter alignment station (servo‑controlled, ±0.01mm precision)
• Spring mechanism assembly workstations
• Mechanism characteristic test station (speed, travel, timing)
• High‑voltage insulation test station (withstand voltage + loop resistance)
• Mechanical endurance cycling station (10,000 operations automated)
• Full MES traceability with Honeywell barcode readers

Results achieved within 3 months: The amount produced has gone up by a factor of more than 2x (from 12 shifts to 28 shifts), with an impressive first-pass yield of 99.8% and a successful IEC audit for the customer to have full traceability over their data. The line was paid back in less than 18 months.