Some machines are just equipment. Others carry history. The Jensen winding machines now operating at Duelund were originally part of a Siemens capacitor factory — built for precision, longevity and uncompromising industrial standards. Designed in an era when machinery was engineered to last generations, these winders represent a time when craftsmanship and engineering discipline were inseparable.
At Siemens, they were used to produce capacitors under strict industrial tolerances. Today, at Duelund, they continue that legacy — but with a different purpose: the creation of some of the world’s most refined audio components.
These machines are not museum pieces. They are fully operational, mechanically precise, and uniquely suited for foil winding where tension control, alignment accuracy and mechanical stability are critical. Their heavy cast construction and purely mechanical control systems provide a consistency that modern lightweight equipment often cannot replicate.
At Duelund, they are used to wind metal foil capacitors, preserving the structural integrity of the foil and dielectric layers. The controlled winding geometry is a fundamental part of achieving the natural tonal balance, low mechanical stress and long-term stability that define Duelund capacitors.
In many ways, these machines embody what Duelund stands for:
- Respect for traditional engineering
- Mechanical precision
- Longevity over disposability
- Craftsmanship over mass production
From a Siemens capacitor factory to Duelund’s workshop — the lineage is intact. The philosophy continues.
