The Most Important 5 Points to Ensure Correct Custom Manufacturing

Based on the experience working with customers, here are the most important 5 points to ensure the correct custom manufacturing.

1. Obvious Drawing Version
During the communication with some customers, it is found there is no drawing version specified when drawing updated. this will easily cause mixing up with previous drawing version during manufacturing. So for all the updated drawing, it is strongly advised to add the drawing version at the end of the drawing file name, by format Such as “Rev B” or “Rev 20190512”.

2. Correct Dimension Tolerance
Sometimes we receive engineer drawing with 3D format drawing only, without any dimension tolerance or thread type specified, in this case, we re-check with customer to confirm if we can follow general dimension tolerance ISO 2768-MK. If there is any fitting position or thread request, it is sincerely advised to additionally provide a PDF format 2D drawing with dimension tolerance and thread specified, just in case.

3. Manufacturing As Per Provided Sample
For customer with limited drawing making capability, we can manufacture based on provided sample, and issue engineer drawing for final confirmation before production. But for such engineer drawing, factory has no idea how to fit for the component, it is advised to carefully check the dimension tolerance on fitting position including thread type, and tell us the specific request, so we can specify on the 2D drawing for you. In addition, if convenient, it is better to further provide the fitting component, so factory can test fitting effect during production and before shipment.

4. Make Sample Before Bulk Production
To better ensure the bulk manufacturing correctness, it is advised to make a sample for quality inspection before bulk production, for purchase quantity higher than 500 pieces per item, Henrong makes a free sample for buyer to confirm the quality before bulk production.

5. Provide Fitting Test Sample
If the part needs strict fitting tightness, besides of specified dimension tolerance on the 2D drawing, it is advised to additionally provide the fitting sample, so factory can test fitting tightness before shipment.

Here are the most important 5 points to ensure the correct custom manufacturing. During the communication with customer, our professional service team will help customer to better control the custom manufacturing process.

We are committed to being the most reliable custom manufacturing partner for customer, with best quality and reasonable cost.