• Injection Moulding Process For Plastics
  • Injection Moulding Process For Plastics
  • video

Injection Moulding Process For Plastics

  • OEM
  • XIAMEN,FUJIAN,CHINA
  • 20DAYS
  • 1000000SETS
Injection Moulding Process For Plastics 1. Plastic manufacturing from product design, mold manufacturing and injection molding production to finished product assembly for over 20 years, ISO 9001&TS16949&Sedex&BSCI Walmart approved. 2. Strong engineering and management capabilities on supply chain of different material pieces, good at assembly service. 3. Keep secret to your idea and your design. 4. Professional QC to assure high quality from incoming material inspection, production process control, to final moulding plastic products inspection.

About us

We hitita has 12000 square meters workshop, who provide one-stop service from product design, mold manufacturing and injection molding production to finished product assembly for customer .We has passed ISO9001/14001, TS16949, Sedex,BSCI and Walmart approved, Our core service are design service, projects assembly and manage supply chain on different materials, include kinds silicone ,rubber, aluminum, stainless steel,fabric,EPP,and so on. We have gained high recognition from the world’s top customers such as Dorel (brand Safety 1st,) byACRE, Earth rated,Ecobreeze,Con-Tech etc.


Product Introduction


Precision Silicone Rubber Injection Molding molds engineered from imported high-strength steel with CNC machining and heat treatment deliver superior wear resistance and excellent thermal stability. Ideal for high-precision silicone rubber components in medical, automotive, and electronics industries.

Silicone Rubber Injection Molding for high-performance, flexible parts with excellent heat resistance and sealing. We deliver precise, durable components for medical, automotive, and electronics with reliable OEM/ODM support.


The injection molding process is a cyclic thermodynamic sequence that transforms raw, solid plastic resin into fully formed, solid components. The entire process takes anywhere from 5 seconds to 3 minutes per cycle, depending on part size and material wall thickness. 


The 6 Stages of the Injection Molding Cycle

Clamping:

The injection molding machine uses a hydraulic, mechanical toggle, or all-electric clamp to lock the two halves of the steel tool (A-side and B-side) together. The system applies tons of clamping force to keep the mold tightly shut against the immense internal pressures of the incoming plastic.

Plastification (Melting):

Raw plastic pellets (nurdles) drop from a hopper into a heated barrel. Inside, a reciprocating screw rotates, moving the material forward. The combination of external heater bands and internal frictional shear heat melts the plastic into a uniform fluid as it accumulates at the front of the screw.

Injection:

The screw stops rotating and acts as a high-pressure piston, shifting forward rapidly. It rams the molten plastic through the machine nozzle, into the mold's sprue, down the runner system, and through the gates into the cold cavity of the mold tool.

Packing & Dwelling:

Once the cavity is filled, the screw continues to exert forward pressure on the material. This "packing" phase forces extra material into the mold to compensate for volumetric shrinkage that naturally occurs as the plastic cools down and contracts.

Cooling:

The plastic remains held inside the locked mold tool. Coolant (typically treated water or thermal oil) continuously circulates through machined internal cooling channels inside the mold plates to quickly sap heat away from the part. The part must remain inside until it is rigid enough to hold its shape.

Ejection:

The clamping unit pulls the B-side of the mold open along the parting line. A mechanical actuator activates built-in ejector pins or a stripper plate, pushing the solidified part out of the mold cavity into a drop bin, robotic arm, or conveyor belt. The mold slams shut, and the cycle repeats. 


Why  choose US?


We listen to your WORDS! We understand your NEEDS!

20+ Years of Engineering Experience

Over 20+ years engineering experience in plastic projects development, main for Infant and child products, medical assistive devices, household products,pet supplies etc.

Quality Assurance

Own rich Experienced QC team to ensure the inspection from incoming material inspection, production process control, to final product inspection.

Customized Service

Our Service include design,3D prototype, tools, injection molding, manage supply chain for other material products and final assembly.

Product Description

Place of OriginalXiamen,FujianMould lead time20-35days
CertificatedISO,Sedex,BSCIProduct Injection Moulding Process For Plastics
Processing serviceCNC,Moulding,AssemblyMold life50K- 1 million shots
Product materialPP,PC,ABS,PA/Nylon,PE,PVC,TPU,TPE, Silicone etc.Mold materialP20, 718, S136,NAK80 etc.
Surface treatmentPainting,electroplating,pad pasting, silkscreen,texture PackagingCaron box /wooden box
MOQ1000pcsColorPantone/RAL customized
Drawing Step/igs/Stp/2DBiggest Part weight5800

Certificate


moulding process

FAQ

Q:What files require for quotation?

A:2D&3D files with step,igs format,samples are also welcomed for quick quotation.


Q:If you can help finish the design?

A:Yes,we have strong R&D team and engineers with 16 years experience on projects development.


Q:We need sign the NDA file before drawing sending,if it is ok?

A:Of course,welcome the NDA files,we keep confidential for our clients all the time even no signed NDA file.


Q:What ls the lead time for mould making?

A: Normally the mould lead time is 25days. It is decided by the size and products structure.


Q:We need final assembly service then ship part to us,if you are ok?

A: We own professional assembly workshop, and strong supply chain for different materials include stainless steel, aluminum, rubber, textile etc.


Q:What is your shipment way?

A:Sea shipment,air shipment,express shipment for small quantity when necessary.


You just need,we are just the right one to satisfy you.


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