EVA pellet preparation
Compound and colour preparation should be matched to the approved material specification.
From material to sole.
A connected production route.
Our Dongjun facilities cover material preparation, rubber, MD, EVA injection, supercritical foaming, surface finishing and bonding. We define the appropriate route for each project.
Seven workshop familiesCapabilities with
Capabilities with
a project purpose.
These are workshop categories published by Dongjun. A product brief determines which line, tooling, material and quality plan are actually applicable.
Rubber outsole workshop
Rubber design and compounding support outsole geometry and ground-contact requirements.
MD moulding
Primary and secondary MD routes support different EVA sole forms and finishing sequences.
EVA injection / IP
Injection is one potential route for integrated EVA sole units, subject to product feasibility.
Supercritical foaming
The premium route introduced in 2021 requires a defined polymer, geometry and evaluation plan.
PQ surface finishing
Colour, surface treatment and visual details are reviewed against approved references.
Bonding and assembly
Adhesion, component fit and assembled sole integrity are evaluated with the actual construction.
Published company photographyProduction and testing,
Production and testing,
seen in context.
Original Dongjun images show distinct workspaces rather than generated factory scenes.
Quality routineThree checks.
Three checks.
One approved specification.
Our published reporting describes supplier-document and pre-production checks, in-process sampling, and a final pre-shipment check. For each project, the methods, sample sizes and acceptance limits must be agreed in writing.
Before production
Identify incoming material and compare supporting reports with the approved requirement. Confirm the reference sample and drawing revision.
During production
Review dimensions, appearance and relevant physical properties on a defined sampling plan. Record deviations and corrective decisions.
Before shipment
Check the finished product and its traceable specification, including any agreed third-party or customer inspection.
Source: Dongjun interview on quality control and company history. This describes Dongjun’s published routine; project-specific evidence is supplied separately.
Private customisationDesign the right route.
Design the right route.
Protect the right work.
Customer-specific tooling is discussed under a defined project agreement. Archive photos do not imply a mould is available for public use.
- Confirm ownership and permitted use of drawings and moulds.
- Set sample and tooling approval milestones.
- Agree inspection criteria and change control.
- Keep private customer manuals out of the public catalogue.
Your next idea.
A considered next step.
Bring an application, a reference or an open question. Let’s turn it into a useful development brief.