Need W224 Airscribe Needles

[wei123]

hi,dear Sir:

i got a second-hand W224 airscribe ,but its needle were broken, so i inqured here who have few W224 airscribe needles to trade,new or old ones are all OK. please contact me through inner message system.

thanks!!

W

[snolly50]

Here is an online source of new needles for sale.

W 224 (Normal Air Scribe) | Online-Shop | Dr. F. Krantz, Rheinisches Mineralien-Kontor

[wei123]

snolly50,very thank u ! i knew that webiste ,too expensive ! i once cost 110USD to buy an ALL airsceibe from US ,this kind price is just reasnable.

Edited August 20, 2014 by wei123

[oilshale]

I guess they used hard solder (silver solder, not the normal tin-solder 焊锡 ) to braze the needle into the piston. You might be able to take it apart by heating it up to around 700°C. Then you can replace the needle by a tungsten carbide rod (http://www.chinatungstencarbide.com/tungsten-carbide-structural-section.html). But to cut and sharpen the tungsten carbide rod, you will need a diamond grinding wheel.

Thomas

PS: If you have access to a lathe 车 (or know a lathe operator), you can easily build your own replacement parts.

Edited August 20, 2014 by oilshale

[wei123]

hi,oilshale:

very thank u for for ur techful suggest.i will take more time to consider it .

W