Model 122

Some customers have more demanding requirements than those achievable by the Airbond Model 113, but do not need the full range of features of the Model 121. They certainly need precise splice spacing, and automatic trimming. However, they are content to set pressure using a regulator, and to control the blast duration manually. A splicer meeting these more modest requirements is already available as the Airbond Model 122.

The Airbond 122 dispenses with the electronic control module, but retains the other advanced features of the Model 121. It makes splices of high quality, suitable for all but the most demanding applications. The Model 122 has:

  • manual control of splicing parameters
  • multiple splicing chambers
  • an advanced cutting system

Why multiple splicing chambers?

  • Carbon fibre and glass fibre are strong in extension, but they are brittle in bending. Using multiple splicing chambers allows the splicer to operate at lower pressures, so that the fibres are not damaged.
  • Tough yarns such as aramids do not have the brittleness problem of carbon. However, the immense strength of aramids in extension poses problems. Using multiple splicing chambers allows the splicer to increase the levels of inter-filament friction – and therefore increase the strength of the splice.
  • Very large yarns and tows demand longer splice length. Using multiple splicing chambers allows us to increase the length of the spliced joint to suit the demands of the increased yarn count.

Why an advanced cutting system?
Carbon fibre and glass fibre are generally used in the form of tows – from perhaps 600 tex to 9600 tex, and above. Large tows, because of their size, are difficult to cut with conventional scissor systems. Aramid yarns are simply very difficult to cut, and they cause conventional scissor knives to go blunt very quickly. So an improved cutting system is needed both for large tows and for aramids.