1. Product precision

Precision is the key requirement for adjusting shims.Accurate adjustment for fuel quantity si completed depending

on grouping of products.We adopt high-precision optical ruler to control lapping dimension,and can control product

precision dimension within 0.002mm.We finish grouping by inspecting one product with two products inside

dust-free workshop.One product is measured for no less than 5 times from finishing process to finished product.

(Testing methods:use high-precision digital display micrometer to measure conformity between actual dimension

and required dimension,and whether the dimension for same-grouped products is same or not.)

2. Geometric tolerance

Geometric tolerance of adjusting shims is directly related to the maintenance quality of fuel injectors.Main

geometric tolerance requirement for adjusting shims is depth of parallelism.Large shim will affect product

tightness while small shim will affect reliability and stability of products.We adopt high-precision double-sided

lapping machine to ensure and control depth of parallelism for products within 0.002mm.Adoption of one-time

forming process better ensures product axiality.(Testing methods:use parallelism tester and deflection instrument

to test parallelism depth and axiality respectively)

FAQ:
common problem:
Q: What can you do
A: We can provide you with digging final drive and swing drive motors and reducer gearbox and their parts

Q: how long is the warranty period?
A: Within 6 months, we will provide you with maintenance spare parts within the warranty period free of charge.

Q: do you accept OEM or ODM?
A: Yes, you just need to provide your logo file or ideas.

Q: can I order one of our samples for testing first?
A: Of course!

Q: how do I order?
A: You need to tell us the model and quantity you are interested in, and then we will issue a proforma invoice for you. The goods will be prepared after receiving the payment. The preparation time depends on the content of the order

Q: do you have a factory?
A: Yes, we have our own factory and have 10 years of production experience in the excavated gear industry.