Engineered in compliance with ISO 9001 and CE directives, our precision hook welders, magnet inserters, and sub-assembly lines optimize wire-to-bar conductivity and withstand tropical assembly conditions.
In tropical environments with continuous thermal cycling, conventional commutator solder joints fail prematurely due to intermetallic fatigue and flux contamination. Here is how Nakro's resistance hook fusing creates a permanent metallurgical bond.
Our hot-staking weld sequence delivers an initial pre-heating impulse that thermalizes and vaporizes the magnet wire's polyester/polyamideimide coating under electrode force, eliminating manual chemical stripping.
Using closed-loop constant-current inverter power supplies, the hook tang is forged directly over the copper strand. This process achieves grain boundary coalescence with zero molten expulsion or splatter.
High-speed linear encoders track electrode penetration depth during hook collapse. Welding current cuts off at precise hook height compression, preventing segment bar deformation and undercuts.
From the automotive clusters of Karawang and Cikarang to appliance lines across East Java, our machines support manufacturing operations facing humid ambient environments and distinct power grid conditions.
Optimized for Tier-1 automotive motor suppliers in the Cikarang (GIIC) and Karawang (KIIC) corridors. Ensures reliable fused commutator joints on 12V/24V wiper armatures, HVAC blowers, and seat adjusters that run flawlessly in tropical conditions.
Supporting Indonesia's transition toward domestic electric mobility (TKDN targets). We provide hook welders and BLDC outer-rotor systems tailored to high-torque hub drives, electric rickshaw propulsion, and starter generators.
Deployed in factories producing ceiling fans, blenders, vacuum cleaners, and water pump armatures across Surabaya, Semarang, and Banten. Consistent hook fusing prevents armature coil burnout under fluctuating grid voltage conditions.
Key industrial drivers influencing capital equipment procurement across the Indonesian archipelago.
Indonesia's Ministry of Industry mandates strict Tingkat Komponen Dalam Negeri (TKDN) minimums (targeting over 40% to 60%) for vehicle propulsion and home electronics. Relying on pre-assembled imported armatures incurs heavy import duties. Installing our commutator hook welders directly inside your Indonesian plants provides local assembly validation, securing government procurement contracts.
With national incentives supporting EV fleet adoption and motorcycle electrification, factories require automated machinery that balances low operator intervention with flexible batch tooling. Our dual-purpose armature fusing and hub winding lines shorten commissioning intervals from months to days, meeting tight market delivery schedules.
Operating machinery near Jakarta or Surabaya presents challenges with high ambient relative humidity (RH > 80%) and industrial grid fluctuations. Our commutator welders feature IP54-rated sealed electrical enclosures, integrated air conditioning for internal inverter units, and rust-resistant hard-chromed linear slides.
Established in 2010, Ningbo Nakro Intelligent Equipment Co., Ltd. delivers turnkey production lines and matched motor components across more than 50 export countries.
Proven logistical delivery, FOB/CIF terms directly into Tanjung Priok (Jakarta) and Tanjung Perak (Surabaya), with full customs documentation support.
Standardized factory run-offs, incoming raw material certification, optical blade alignment, and surge-hipot verification before vessel dispatch.
High-capacity workshop with dedicated CNC machining for custom tooling, EDM electrode fabrication, and full assembly line integration bays.
Beyond equipment, source matching bare hook commutators, NdFeB magnets, carbon brushes, and insulation paper from a single technical partner.
Addressing technical specifications, delivery logistics, local grid compatibility, and commissioning support.