Ningbo Yunhe is dedicated to providing a reliable product to it's customers while insuring their satisfaction. By staying commited to our values of Caring, Quality and Honesty we offer dependable and accuracy hairsprings manufactured entirely in China.
Quality, Accuracy,Honesty, Dependability
« Over 26 years of experience in spring manufacturing.
« Design capabilities to support our Customer's from inception to production
« Capable of working with most materials, a wide range of tolerances and volumes
« Society of Manufacturing Engineers.
Raw Material
We have the ability to meet virtually any specifications required using a wide range of metals that include the following:
Phosphorous bronze
Beryllium copper
Silver coated beryllium copper
Stainless steel
Inconel
Chase alloy
Certain precious metal
Tolerances
Our rolling tolerances are:
± .0005" in width from .100" to .0005"
±.0002" in thickness from .040" to .0005"
We are capable of creating springs with an outside diameter (O.D.) of .240" to 2.000".
Quality
• Capabilities to 100% inspect to meet our customers requirements.
• We employ a unique method of cleaning parts in order to ensure physical tolerances and cleanliness for greater solderability.
Assembly and Packaging
• We will assemble and package your springs to fit your specific needs.
• For our customer's with more stringent cleanliness requirements we offer parts packaged in a plastic disc. This dramatically helps to prevent tarnish and oxidation from occurring.
