Ningbo Mingyu Mold Manufacture Co.,Ltd Company Logo Ningbo Mingyu Mold Manufacture Co.,Ltd
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Car Dashboard Mould

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Ningbo Mingyu Mold Manufacture Co.,Ltd

B3,Moju town Ningbo Zhejiang
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Quick Information

  • Brand Name: MINGYU
  • Place of Origin: China
  • Product : Vehicle Mould
  • Product Material : Plastic
  • Shaping Mode : Plastic Injection Mould


Mold Name: Car bumper mold

Model No.: Car bumper mold-1


how to make car bumper, injection molding manufacturer, china injection mold companies, car bumper mold design and maker

Plastic material PVC,PPR,PP.PE,ABS,PS,POM,PPH…etc
Steel of Cavity & Core DIN 1.2316/ DIN 1.2738/DIN 1.2344 /M300/ 718/ P20..etc
Steel of Mouldbase S50C.LkM standard…etc
Nos of Cavity Customized
Hardness of Cavity & Core 32-50HRC
Hardness of Wear Parts 55-60HRC
Core pulling system Motor /oil cylinder/ stripping plate, angel pin…etc
Mould Accessories DME/HASCO Standard …
Cooling system In core baffle cooling and in cavity plate chain drilling type cooling
Surface finish Diamond polish, Texture
Molding  life 500,000-5,000,000shots
Runner Cold or Hot runner
Delivery time 60 work days
Packing Standard exporting wooden case


1.High quality with pretty competitive price;

2.Good services and excellent communications;

3.Advanced technology;

4.Rich experience in export;

5.Highly qualified team with one heart.


Quality assurance:

  1. MINGYU MOULD is equiped with world advanced machine production lines with tolearance +-0.01mm
    2. Quality Certificated mould steel
    3. More than 20 years experiance mould worker

What we can make?

  1. We are one of the most professional mold maker in China. we can help you analaysis the  product, design and make the molds. Such as automobile bumper moldauto dashboard mould, auto door panel moldrefrigerator mouldwashing machine mouldwater dispenser moldchair mouldtable mouldbucket and lid mold, fruit cratebottle box moldstorage moldspoon moldfork mold, etc

What we need for quotation?

1,Plastic parts’ function/application

Because some engineering components, it is necessary to tell the injection mold company their functions or products name to make the injection mold maker has an idea about the plastic products.

2,Plastic material

This can help the injection mold maker to choose which kind of steel and which kind of injection gate…

3,Plastic components drawing or 3D file or sample picture 

If you have 3D design, or 2D detailed drawings for the plastic components, then it is available for getting the quotation, if you only have the plastic samples, then please do the dimension indication on the picture and send us the clear picture for getting a more correct quotation.

4,Plastic components quantity demands

You can tell injection mold company by every year, every month or every day how many pieces you need. Because the injection mold maker need this information to fix how many cavities on the quoted injection molds. And also it help injection mold maker to choose the correct steel, also it will help the injection mold company to optimizer your injection mold custom cost.

5,Injection molding machine tonnage or injection capacity

This can help the mold maker to calculate the injection mold cavity Nr. According with your machine’s size.

6,Custom injection Mold components brand

If you have special requirement for the custom injection mold components brand such like hot runner, hydraulic cylinder and so on, please do remember to tell injection mold maker when you sending an inquiry.

As injection mold company china,If buy injection mould from us, what’s the guarantee?

1,Before injection mould delivery,we will have strict injection mould inspection ,and we will use standard export wooden case package the injection mould with spare parts.

2,If the injection mould broken without personal mistake operation,we will take respobsibility for it, we will make broken parts depend on design and ship to you.


Our design/engineering technologies include:

  • Pro/Engineer/UG (3D)
  • AutoCad (2D)
  • Moldflow analysis (Plastic flow/deform simulation)
  • MasterCam (CNC Programming)

Plastic Injection Mold Making Process

MINGYU mould processing procedure

As a good reputation manufacturer in China, MINGYU MOLD here share the basic injection mold making process in our company:
1. Products design department provides product information to injection mold design department, injection mold designers complete cost analysis in two working days, and provide to R&D manager.

  1. R&D department release “Mold Making Apply” to plastic injection mold design department after confirmed the project.
  2. Injection mold designers organize relevant personnel to review the project base on the product information, including product structure, mold structure, cooling system, runner, slag, venting, etc.
  3. After evaluation, injection mold designers begin to design the plastic injection mold, including 3D drawing correction, 3D parting, mold parts assembly drawing, EDM drawing, electrode drawing etc., and organize relevant personnel to evaluate those drawings, then issue to plastic injection mold making department.
  4. Injection mold makers evaluate and study the drawings, and order mold materials if there is no objection, otherwise, communicate with the plastic injection mold designers.
  5. Injection mold makers inspect the mold materials in time after the materials arrive to factory, and arrange technicians to do locksmith works, include turning, grinding, milling, screw holes, water carrying hole, center hole, CNC roughing, etc. The technicians should pay attention to the precision of each right-angle sides, avoid empty of the center hole and each production base, roughing margin etc. Then outsource each mold part to heat treatment promptly.
  6. After heat processing, plastic injection mold maker must detect its hardness and metallurgical analysis. Generally, the core hardness 46-50HRC, for uniform distribution of 9 points, requiring its hardness differ is less than 1HRC. Metallurgical analysis should be done for the injection mold core prior to processing to make sure there is no segregation, scars, etc.
  7. Electrode processing, there are fine and rough processing, fine male spark is 0.08, rough male spark is 0.2 (subject to the actual situation). Be sure to pay attention to each processing benchmarks, and detect electrodes after processing finished.
  8. Before finishing, must make right angle for the mold core, the vertical degree should less than 0.02 mm, finish degree 1.6.
  9. For line cutting, please note that all parts’ base, enlarge 0.02mm for the insert hole and center hole as tolerance clearance, for non-standard thimble, the tolerance clearance is 0.04mm of the actual thimble size.
  10. Mold core finishing, shall base on the benchmarks after making right-angles, typically leaving 0.02 mm die as a margin (without considering tool wearing).
  11. EDM processing, process according to the drawings’ size, fine 0.08, rough 0.2 (subject to the actual situation), pay attention to the benchmarks in processing, for sparks processing, the leave a margin of 0.03-0.05 mm.
  12. The runner surface must be polished to achieve ▽6 or ▽7 finishing, the surface does not allow spark or knife pattern exists.
  13. Before assembling the plastic injection mold, the mold maker must do a comprehensive inspection for all related parts to make sure everything is in a good condition, and do cleaning and anti-rust treatment. Then fill “Mold Inspection Summary” form.
  14. In tryout, injection mold designers, plastic mold makers and die casting workshop personal should go to the site, making analysis and solution of abnormal in casting tryout, improving the plastic injection mold and die casting process according to the results, and fill “Mold Tryout Report”.
  15. By 100-150 cycle time, the tryout products are defect-free, the production department make production schedule, the technicians track the production processes, and feedback yield to the plastic injection mold making department.
  16. After tryout, plastic injection mold making department apply for storage with the forms of “Mold Making Apply” and “Mold Making Inspection”. and then arrange the shipment as soon as possible.

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