Hejia Tek

Hejia Tek whatsapp：+86 15814109189
Professional injection mold making, Supports customized molds. Global shipment

Provide services such as product design, mold design, and feasibility analysis.

08/09/2026

From Injection to Inspection — One Ring, One Complete Part
A ring-shaped plastic part comes out of the injection molding machine, but production doesn’t stop there.
After demolding, each part is carefully checked to make sure the shape is complete and free from visible defects.
· Injection molding
· Demolding inspection
· Consistent part quality

04/09/2026

When “One Small Change” Turns Into Ten More Changes… 😅
The customer has a new idea.
The salesperson has another suggestion.
And the engineer in the corner?
He’s already questioning every decision that brought him here. 😂
That moment when the requirements keep changing, but somehow the engineer is still expected to make it work.
· Product Development
· Engineering Support
· Mold & Manufacturing Solutions

31/08/2026

A Water Tank Starts With a Mold.
This water tank mold is still being manufactured, with a technician carefully polishing its surfaces to refine the tooling before production.
From mold manufacturing to the finished plastic product, every stage starts with the right foundation.
· Water Tank Mold
· Mold Polishing
· Injection Mold Manufacturing

28/08/2026

Why Add a Manual Assembly Step When the Mold Can Do It?
A well-designed mold can do more than simply produce a plastic part.
This automatic lid-closing mold is designed to complete the lid-closing process directly during molding, allowing the finished product to come off the machine already assembled.
The video also shows how the automatic lid-closing mechanism is designed and integrated into the mold.
· Automatic Lid-Closing Mold
· Mold Design
· In-Machine Assembly
· Injection Molding

27/08/2026

What If the Mold Could Close the Lid by Itself?

Instead of adding a manual lid-closing step after molding, this mold integrates an automatic lid-closing mechanism directly into the production process.

The finished product can be assembled on the machine immediately, helping reduce manual labor, production time, and overall costs.

· Automated Mold Design
· In-Mold Assembly
· Injection Molding

25/08/2026

A Good Mold Doesn’t Just Get Made — It Gets Fine-Tuned.

Workers are carefully repairing and adjusting the mold, making sure every detail is ready for the next production stage.

· Mold Repair
· Mold Adjustment
· Injection Mold Manufacturing

21/08/2026

The Machine Is Cutting. The Engineer Is Watching Every Move.

The CNC machine automatically removes material from a metal block, while the engineer checks the machine arm and monitors the machining process.

Automation handles the cutting, but skilled inspection is still essential for keeping the process under control.

· CNC Machining
· Precision Manufacturing
· Process Inspection

18/08/2026

Different Departments. One Manufacturing Solution.

From engineering and mold making to machining, injection molding, and production support, different teams work together to move a project forward.

One project may pass through many hands — but the goal stays the same: turning an idea into a manufacturable product.

· Product Development
· Mold Manufacturing
· Injection Molding
· One-Stop Manufacturing

15/08/2026

When Electricity Does the Cutting. ⚡

No cutting tool is touching the mold in the usual way. Sinker EDM uses controlled electrical discharges to precisely machine complex mold features.

A small spark, a highly controlled process, and another important step in precision mold manufacturing.

· Sinker EDM
· Mold Manufacturing
· Precision Machining

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No. 42, South Dongkeng Avenue, Dongkeng Town, Dongguan City
Dongguan
523000

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