How Are Connector Pens Made?

Faber-Castell Connector Pens are fibre tipped colouring pens that feature unique caps which clip the pens together. There are seven pieces in a Connector Pen: the Cap, Barrel, End Button, Fibre Tip, Ink Reservoir, Ink and Brand Stamp. There are three main stages in their manufacture.


The Cap, Barrel and End Button are all moulded from a plastic material called polypropylene (PP), which has a high resistance to ink evaporation. (This is why Connector Pens last longer). This PP material comes in the form of millions of granules – like extra big grains of sand. This is mixed with some recycled PP granules and certain colour granules, which determine the colour of the Cap, Barrel or Button.

This material is then heated to approximately 200 degrees Celsius and injected into a moulding machine, which has up to 36 cavities (moulds) and a clamping force of up to 180 tones. These cavities are then rapidly cooled using recycled water and the moulded parts are ejected, ready for the assembly stage: step 3.

This moulding cycle takes approximately 30 seconds. Approximately 150,000 Caps, Barrels or Buttons are moulded per day.


Connector Pens are available in 100 different colour shades. All these colours originate from just 6 safe, food grade dyestuff colours or pigments mixed with purified water. These pigments are weighed to ensure colour consistency is always maintained from batch to batch.  A stabiliser is also added to prevent growth of any toxic elements and then the ingredients are spun in a giant mixer.

All Faber-Castell colouring marker inks are guaranteed non-toxic and safe for children.


Click here to see Colour Chart


All the components are put into place on the assembly line, which automatically assemble each Connector Pen, one colour at a time. The barrels, ink reservoirs, tips, buttons and caps are all automatically fed into this assembly line through big funnel like bins called hoppers. The pen barrels first pass a stamping station where brand and product name are hot stamped with gold foil.


The ink reservoir is inserted by rod into the barrel and injected with ink. The button is then pushed into the end of the pen and the fibre tip is inserted by rod into the point opening of the pen.


The cap is then clicked into place to seal the pen. 


The complete assembly process takes approximately half a second per pen. Up to 130,000 pens can be assembled per day per machine.


The bulk pens are then sent to be packed into various colour assortments ready for sale.