Mechanical engineer to design a micro torsion spring


We are looking for a highly qualified mechanical engineer with experience in designing small torsion springs. We need to design a very small (mini or micro) torsion spring to close a small valve door. This small valve is insert in the outlet of a liquid tank. When the valve is closed, the tank must not leak water.

Step file of the valve is attached. The spring needs to close a small door against a rubber gasket to make it fully water tight. The rubber gasket has a hardness of 30A and the door is small so I think that ~10 grams of pressure when the door is closed would work fine.

We need the spring to be highly corrosion resistant so at least 304 or even 316SS would work but not 303.

We may need to adjust the design of the valve base and valve door to fit with the spring. EX: we may add little walls to confine the spring wire between the two walls. Or we may need to modify the door so that the spring can be installed on the SS rod that fix the door on the valve base.

Also attached is an image of the spring designed by hand.

I need this done asap and the worker must produce:

- the spring design so that it can push around 10 grams when the door is closed and permit a deflection angle of 140 degrees.

- All specifications (force, deflection), drawings and all necessary information to give to the spring supplier so we can get a quote

Thank you

Compétences : Génie Mécanique, Solidworks, Ingénierie, CAD/CAM, Design industriel

Concernant le client :
( 96 commentaires ) Shefford, Canada

Nº du projet : #26807869

Décerné à:


Hi. I'm Mechanical Design Engineer and Expert in Specialized/Complicated Machine Design, CAD/CAM, 2D, 3D, Macros, Product Design, FEA Analyzes, DFM, Technical Drawing with Dimensions, Interior/Exterior Design, Photorea Plus

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6 freelances font une offre moyenne de 153 $ pour ce travail


Hello my name is William. I am available to help you with your design requirements. I am a Mechanical Engineer with extensive experience in CAD/CAM design, product design and development, CNC manufacturing processes. Plus

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I am Mechanical Engineer, Product designer and Prototyping expert! I will design a micro torsion spring according to your need! I can send you my previous work as a sample to have a look. You can also checkout my port Plus

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hi respected checked and understood the details that you want to design a micro torsion spring please visit my portfolio i have designed the spring already i am solidworks [login to view URL] share the more details with m Plus

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Hi there, My name is Hassan Abdel Hamid I carefully checked the attached photo and step file . i certified in Solidworks (CSWA certification ) I’m so interested on your project, and ready to start from now. I already h Plus

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