Single-Filar Coil Winding

EBD Coil winding technology is developed specifically to wind micro coils for minimally invasive medical devices. Our coil winders can wind coils down to .001″ diameter wire on a .010″ mandrel using our innovative closed-loop filar tension control system. The machine flexibility enables the filar tension to be recipe controlled from 5 grams to 600 grams during the entire wind.

The picture above reflects this technology from our modular multi-filar systems. Each multi-filar platform can produce catheter coils using one, all, or somewhere in between the filar heads, you define for your machine. 

The above picture shows a coil on the tip of Lincoln’s nose, on a penny, alongside a human hair at the right. Coils length and filar count are only limited by your facility floor space.

Key Features

  • Filament .001” to .015” limit travel distance & mandrel length in recipe setting

  • Filament slack control that maintains tension at all wind speeds

  • Store up to 250 process recipes shared between two-heads

  • Brushless servo drives on traverse and both mandrel ends (no back shaft)

  • DIN 80 filament spool size capable

  • Recipe edit menu allows up to 30 repeating combinations of any pitch, angle, direction, speed, tension, and length.

  • Recipe steps can ramp pitch between set points (plus angle ramp with vision option)

  • Alphanumeric color touchscreen display for program entry and status displays


  • Spool size: DIN 80 maximum

  • Input power: 208-240 VAC, single phase with ground, 50/60 Hz.

  • Weight: 1,450 pounds

  • Dimensions: 167” L x 31” W x 75” H

  • Mandrel size: .250 diameter max

  • Travel: Adjustable zero to 70” (177 cm) with suitable winding accessories & 2” mandrel stretch

  • Filament size: .001” to .015” round solid or tube, or ribbon or metal – 1 to 4 filars per head

  • Wind speed: Up to 75 RPS and 10 in/sec traverse speed

  • Filament tension: Configurable ranges from 5g min up-to 75g max 

  • Mandrel tension: Automatically controlled by a stepper motor. Configurable ranges from 45g min up-to 32g max 

  • Mandrel length: Adjustable from 21” to 74” (54 to 188 cm) 

  • Optional angle control: +10°/-30° with +/- 0.02° resolution 

  • Compliance: Built to CE and NFPA 79 standards