Full Service Custom Injection Mold Supplier in China

Save Money With an Injection Molding Company That Helps You Design For Manufacturing.

injection Mold Manufacturer in China

Looking for reliable Injection mold for your next project? Stebro Mold specializes in designing and manufacturing high-quality production molds, prototype molds, unscrewing molds, collapsible core molds, molds requiring multiple slides and lifters, 2K molds, insert molds, and over molds for OEMs and plastic injection molding companies.

The entire development process from the initial design meeting to the delivery of your finished mold relies on meticulous engineering and planning. We do not just take a customer’s product drawing or 3D part design verbatim and build a mold. Our responsibility is to take ownership of that mold, so we have to critique it, go through our customer’s requirements, and obviously make suggestions if we see potential issues or if we can make enhancements.

plastic injection mold project

We do a lot of parts sampling, troubleshooting and mold validation. When we build new molds, we want to ensure that they go to our customer’s facilities without any issues for a smooth transition to production. Validation services can include PPAP, first article inspection, design of experiments, IQ/OQ/PQ process validations, factory acceptance tests, and more.

Contact us for your next plastic injection mold project. Our promise to you is optimized cycles, quality parts, and low maintenance!!!

Injection Mold Making Company

Two Shot Mold

Insert Mold

Over Mold

Gas Injection Mold

Unscrewing Mold

Prototype Mold

Hot Runner Mold

MUD Insert Mold

Mass Production Mold

Why Stebro Mold

Free Plastic Part Design Assistance
Mold design optimize with Moldflow to improve the surface and reduce cost
In-house Tooling Manufacturing
Mold Life Guarantee, Free Mold Maintenance
Affordable Price, No Hidden Charges
Quality Control In Manufacturing, Consistent Quality
15 Days to Finish Mold
24-Hour Quote Responses With DFM Feedback
In-House Tooling trial and part production

on-time delivery, world-class craftsmanship and a fair price

Customer Letters

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Amanda Lee

CEO & Founder Crix

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Catherine Gilbert

Director at Initech

One-stop solution for Plastic Part from part design to final Delivery

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What is Injection Mold?

It is a tool used in manufacturing to create plastic parts by injecting molten plastic into a mold cavity under high pressure. Once the plastic cools and solidifies, the mold is opened, and the finished part is ejected.

Injection Mould Manufacturing processes step by step

Product development and optimize
Prototype to check the part
Mold Design
Moldflow to optimize the mold design
Order the steel, Moldbase, and mold component
Gun drilling for the cooling line
CNC rough manufacturing on the cavity and core inserts, slides, and lifters
Heat Treatment
CNC fine manufacturing the cavity and core inserts, slides, and lifters
EDM manufacturing
Wire Cut manufacturing
Fitting the mold
Polish
Assemble the mold
Mold test
Sample checking
Mold improvement

Advantages

Automation and high production rate
Material and color Versatility
Plastic material can be recycled, and minimal waste
Consistent quality and high tolerance precision
Flexibility design, Parts can be complex shapes

Disdvantages

Initial tooling cost is high
Limited flexibility after the mold is done
Long lead time

Design key consideration

Uniform wall thickness
Draft angle optimization
Cavity number based on part volume
Steel material selection based on the plastic material, surface requirement, and part volume
Gate system
Efficient cooling design
Venting and ejection system
Easy Mold Maintenance

Manfaucturing Tolerance

The manufacturing tolerance for injection molds can vary depending on a number of factors, such as the complexity of the mould design and the materials used. However, in general, the tolerance for injection molds is typically within +/- 0.005 inches or +/- 0.01 mm.

It’s important to note that some features of the mold may require tighter tolerances, particularly if they are critical to the function of the final product.

In addition to manufacturing tolerances, it’s also important to consider the tolerance of the final product. This refers to the allowable deviation in the dimensions and features of the plastic parts produced from the mold. Understanding and controlling both the mold manufacturing tolerance and the part tolerance is crucial in ensuring high-quality parts.

Injection Mould Surface finish

SPI Mold Surface Finishes

Plastic Injection Molds Cost

Tooling cost = Mold design cost + Steel material cost + mold base cost + mold components cost + Manufacturing cost + Mold Trial + Delivery cost

Application industry

Plastic Mould Making Equipment

The process of making plastic moulds requires specialized equipment and machinery to produce molds that meet the required specifications. Some of the key equipment used in plastic injection mould making include:

Gun Drilling Machine
CNC Machine
EDM Machine
Wire Cut Machine
Lathe Machine
Grinding Machine
Mold fitting Machine