Injection Molding Service

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  • Rigid & Flexible plastics
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What is injection molding

Injection molding is the most cost-effective way to make a plastic part at scale. The process involves injecting molten plastic into a mold tool, then ejecting the solidified part. This process quickly repeats hundreds or thousands of times, amortizing the cost of the mold tool and driving down the cost of each unit to a few dollars or less. Since injection molding uses the same mold tool for each part, the process offers consistent quality across every part

How does injection molding works

The process of plastic injection molding requires an injection molding machine, raw plastic material, and a machined mold. The raw plastic material is first melted in the injection unit and is then injected into the mold—most often machined from steel or aluminum—where it cools and solidifies into the final plastic part. 

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Injection Molding Service China
Injection Molding Service China

Types of Injection Molding

Rapid Tooling

Rapid Tooling is a fast and cost-effective process to create aluminum or steel injection molds for quick-turn injection molding. It decreases the time and cost of the product…

Injection Molding Service China

Overmolding

Overmolding is a unique injection molding process that combines two or more components together. It begins with the part being formed through the typical injection molding process…

Injection Molding Service China

Insert Molding

Insert molding involves placing an insert or substrate into the mold cavity before injecting it with molten plastic. The insert can be made of metal or any other material that can withstand the temperature and pressure…

Injection Molding Service China

Injection Molding Materials

Injection Molding Surface Finishes

Multiple surface finishes and colors depends on the customer’s choice

Finish SPI Standard Finishing Method Typical Surface Roughness Ra(μm)
As machined
Finished to the machinist’s Discretion
3.2(has visible marks)
Rough Textured
D-3
Dry Blast #24 Oxide
3.2-10.0
Dull Textured
D-2
Dry Blast #240 Oxide
1.0-2.8
Satin Textured
D-1
Dry Blast Glass Bead #11
0.8-1.0
Normal Matte
C-3
320 Grit Stone
0.63-0.7
Medium Matte
C-2
400 Grit stone
0.45-0.55
Fine Matte
C-1
600 Grit Stone
0.35-0.4
Normal Semi-Glossy
B-3
320 Grit Paper
0.28-0.32
Medium Semi-glossy
B-2
400 Grit Paper
0.1-0.15
Fine Semi-Glossy
B-1
600 Grit Paper
0.05-0.1
Normal Glossy
A-3
Grade #15, 1200 Grit Diamond Buff
0.05-0.1
High Glossy
A-2
Grade #6, 3000 Grit Diamond Buff
0.025-0.05
Highest High Glossy
A-1
Grade # 3, 6000 Grit Diamond Buff
0.012-0.025

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  • Qualified materials and production process
  • Multiple surface finishes
 
 
Injection Molding Service China

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