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We operate injection molding presses up to 1,000 ton to support large part applications, which can process plastic parts maximum to 2000*1500mm. Following is a lit of what you can expect from utilizing injection molding for production of your parts.

  • In-house mold production to improve efficient and save cost
  • Can process a wide range of plastic materials
  • Robotics and in-house manufacturerd end-of-arm tooling ensure effcient cycle times
  • Additional capabilities inclding bonding, painting, printing, assembly and custom packaging
Name Detail
Maximun Size 78.74in. x 59.05in. x 39.37in.
2000mm x 1500mm x 1000mm
Mold Cavities Single or multi-cavity
Mold Life Unlimited (We will open a new mold if the old one worn out)
Mold Storage Forever (Only damage the mold after your permission)
Mold Material Tool steel, stainless steel, aluminum
General Tolerance Normally +/- 0.008in.(0.2mm)
Mold Lead Time Generally 30~40 days for large part injection molding
Finish Description
SPI A1 6000 grit diamond, surper high glossy finish
SPI A2 3000 grit diamond, high glossy finish
SPI A3 1200 grit diamond, normal glossy finish
SPI B1 600 grit paper, fine semi-glossy finish
SPI B2 400 grit paper, normal semi-glossy finish
SPI B3 320 grit paper, normal semi-
SPI C1 600 grit stone, fine matte finish
SPI C2 400 grit stone, medium matte finish
SPI C3 320 grit stone, normal matte finish
SPI D1 Dry blast glass bead, satin textured finish
SPI D2 Dry blast, dull textured finish
SPI D3 Dry blast, rough textured finish
part surface finishing

Optimizing Large Part Injection Molding

FAQs of Large Size Injection Molding

What is considered "large size" injection molding?

Large size injection molding typically refers to parts with surface areas of 100 square inches or more. It generally requires injection molding machines with clamping forces of 500 tons or higher.

Important factors include:

  • Proper gating and runner system design
  • Optimized cooling channels
  • Structural reinforcement to prevent warpage
  • Ejection system capable of handling large, heavy parts
  • Venting to allow air to escape from large cavities
A general rule of thumb is to use 2-8 tons of clamping force per square inch of part surface area. Other factors like wall thickness, part geometry, material viscosity, and mold temperature also influence the required clamping force.

Large-part injection molding often requires materials that can maintain their properties and structural integrity over larger surface areas and volumes. The typical plastic materials include:

  • Polypropylene (PP)
  • Polystyrene (PS)
  • High-Density Polyethylene (HDPE)
  • ABS (Acrylonitrile Butadiene Styrene)
  • Nylon (Polyamide – PA)
  • Acetal (Polyoxymethylene – POM)
  • Polycarbonate (PC)
  • Acrylic
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