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Barrel Rotation in Electroplating

Q. Dear sirs,

I have one doubt
Shall I know about Barrel rotation requirement in Electro plating line. At present , in our Plating line , barrel rotation is 6 RPM, but , we have problem of products thread damage during plating barrel rotation ( In plating line, 115 minutes , Barrels are rotating).

Shall I reduce the barrel rotation?

What is the recommended barrel rotation for plating & phosphating line?

Subra Thiru
Sundram fasteners Limited - Haiyan, Zhejiang, China
2005

A. That's a long time in the plating line. Are you plating zinc? To what thickness, and with acid or alkaline zinc? 6 RPM is not unusual although some shops would use 4 RPM for large barrels.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Need quick confidential answers? $25
Need project assistance? $100/hr.
2005

Gear box rotation speed influences the plating result?

Q. Hi everybody,

I am working in zinc plating company for 3 months. So, I not sure about the rotation speed of the gear box will influence the plating result or not?
Our factory plating machine is produced by Taiwan company. There are 24 barrels for plating and control by 4 ampere machine.
Anyone that can help me, please post your answer, I will appreciate it! Thank a lot!

QUEK SOCK AIK
PLATING FACTORY - KLANG, SELANGOR, MALAYSIA
2005

A. You want sufficient rotation speed for solution transfer, parts movement, and even exposure of all surfaces for plating, but no more than necessary (to limit abrasion and possible parts damage). 4 to 6 RPM is pretty typical for production sized barrels. Please clarify what you mean by 4 Amp machine. Thanks!

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Need quick confidential answers? $25
Need project assistance? $100/hr.
2005

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