benlong 
DC Isolating Switch Automatic production line
Custom DC isolating switch automatic production line for PV applications. Automates terminal assembly, rotary torque/stroke calibration, arc‑chute placement, multi‑pole stacking (2P‑8P), hi‑pot test (5kV), and MES traceability. UL/IEC compliant. 3‑4 operators per shift. Ideal for solar combiner boxes and inverters.
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Load isolation switch Automatic Testing line
Automatic load isolation switch testing line per IEC 60947‑3. 10‑station integration: loop resistance (≤50μΩ, 100A DC), hi‑pot (3kV), mechanical life (≥10,000 cycles), torque, temperature rise. ≤28 sec/unit, 99.8% first‑pass yield, MES ready. Ideal for disconnector mass production and export certification.
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IOT Smart MCB automatic production line
Custom IOT Smart MCB automatic production line with precision riveting, communication protocol validation (Wi‑Fi/Zigbee/RS485), remote switching test, and accelerated aging chamber. MES traceability, 800‑1,500 units/shift. Ideal for smart home, smart grid, and IIoT applications.
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MCB mini production line Integrated machine
Compact MCB mini production line integrated machine. 3,000 pcs/8h, dimensions 5.9×1.8×2.4 m. Integrates riveting, magnetic trip test, hi‑pot, thermal calibration, screw tightening. Ideal for small‑to‑medium manufacturers (200k‑800k units/year), limited floor space, pilot runs. Low capital investment (20‑30% of full line). Payback under 12 months. Supports 1P/2P/3P/4P quick changeover.
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