Founded in 2012, Dongguan Senlan Mold Parts Co., Ltd. focuses on
precision machining for mold components, with strong experience in
custom non-standard parts for precision packaging molds.
Over the years, Senlan has supported customers across a wide range
of industries with precision mold parts for multi-cavity molds and
other demanding tooling applications. Our work goes beyond
machining parts to size. We pay close attention to fit,
consistency, and the details that affect mold performance in real
production.
At Senlan Precision Parts, we believe good manufacturing should be
dependable, practical, and clear. That is why we work closely from
the drawing stage, control key processes carefully, and keep our
focus on parts that are ready for assembly and stable in use.
Our core business is the custom machining of precision mold
components.
We manufacture plastic cavities, core pins, inserts, moving core
assemblies, cap sealing mold parts, and other non-standard mold
components based on customer drawings. These parts are widely used
in:
- cap and closure molds
- daily packaging molds
- cosmetic packaging molds
- medical consumable molds
- other precision packaging molds
In these applications, even a small variation can affect mold
fitting, product consistency, or tool life. For that reason, we
place strong focus on dimensional control, machining stability, and
repeatability throughout production.
Machining Equipment and Processes
Precision work depends on using the right process for the right
part.
Our main machining capabilities include 3-axis CNC machining, EDM,
turning, grinding, polishing, and heat treatment. Different parts
require different process combinations depending on their geometry,
tolerance requirements, and surface finish needs.
For more complex parts, we plan the machining route step by step to
achieve a better result. Some parts require EDM for narrow or
difficult areas. Some require grinding for closer tolerances.
Others need polishing or heat treatment to meet working
requirements in the mold.
This flexible approach allows us to machine a wide range of
precision mold components with better control over accuracy,
finish, and consistency.
Quality control is built into our process from start to finish.
To verify part quality, we use inspection equipment such as Zeiss
CMM, optical projector, hardness testers, and cylindricity
measuring instruments. These tools help us check critical
dimensions, fine features, hardness results, and roundness-related
requirements with greater clarity.
Key dimensions are inspected during production and checked again
before shipment. This helps us reduce variation, catch issues
earlier, and improve fitting performance during mold assembly.
For us, quality inspection is not only about whether a part passes
measurement. It is about whether the part performs as expected in
real use.
Good parts also need clear communication and reliable follow-up.
At Senlan, our business support team works closely with customers
from quotation to delivery. We help review drawings, confirm
requirements, follow production progress, and keep project
information updated throughout the process.
For custom mold parts, details matter. Material, tolerance, surface
finish, heat treatment, inspection points, and delivery time all
need to be confirmed clearly. Our team stays involved to help
reduce misunderstandings, improve response speed, and keep projects
moving in a more organized way.
We believe good service is not only about replying quickly. It is
also about following the project carefully and making sure
important information is clear at each step.
Our Goal
Our goal is simple: to make mold parts that meet the drawing, fit
well, and perform reliably in production.
We understand that customers are not only buying a machined
component. They are looking for parts that help reduce fitting
issues, support smoother assembly, and contribute to more stable
mold performance over time.
