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Plastic Injection Mold Design

Detailed Tooling Design Mechanical DrawingsDetailed Tooling Design Mechanical DrawingsDetailed Tooling Design Mechanical Drawings

Plastic injection mold design is an integral part of producing a plastic part designed for injection molding. Without proper plastic injection mold design a customer may not achieve adequate cycle times, part strength, cosmetic requirements or tooling life, and the amount of time required to build and rework a proper tool can take a year or more. Proper plastic injection mold design reduces the chances of these setbacks occurring.

Cypress Industries performs all plastic injection mold design internally and utilizes a 40 step tooling design review process with multiple tooling experts to ensure our customers receive the best possible chance at receiving good parts as quickly as possible off their plastic injection molds.

Customers at a minimum are provided 2D PDF’s of gate locations and ejector pin locations to ensure that cosmetically they are ok with the placement of those items that can affect plastic part design aesthetics. Customers can request full 3D plastic injection mold designs for approval prior to Cypress Industries beginning to cut steel.

Our tooling design review encompasses things such as:

  • Ensuring design meets SPI Standards
    Tool Design for Auto or Manual
  • Heater design
  • Cavity & Core layout
  • Venting
  • Runner & Gates balanced
  • Parting line locks

  • Manifold proper size and balanced
  • Gates locations
  • Cavity/Core material
  • Slide design
  • Mold sized for proper press
  • Mold material
  • Water lines

For clients with more complex plastic injection mold design requirements we recommend utilizing Moldflow® software at an additional cost which we can quote. Moldflow® analysis of complex parts can aid with:

  • Cooling system design 
  • Processing conditions
  • Comparison of wall thicknesses and material flow
  • Part warpage
  • Gate selection
  • Potential for weld lines & nit lines

  • Feed system deisgn
  • Material flow & selection
  • Flow temperatures
  • Fill times & Injection pressures
  • Air traps where venting may be required
  • Sink related problems
Value Engineering of Cooling SystemValue Engineering of Cooling SystemValue Engineering of Cooling System
Plastic Injection Mold Flow DesignPlastic Injection Mold Flow DesignPlastic Injection Mold Flow Design
Detailed Tooling Design Mechanical DrawingsDetailed Tooling Design Mechanical DrawingsDetailed Tooling Design Mechanical Drawings

For high volume production runs, the additional cost of a 3D Moldflow® analysis can be offset by improved cycle times, part quality and tool life.

Cypress Industries has experienced plastic injection mold making engineers and machinists in the USA who can work with you during your plastic part design for injection molding to assist you with:

  • Part Design for Manufacturability(DFM) 
  • Choosing a Texture
  • Tolerance verification
  • Draft requirements
  • TPE
  • Acrylic

  • Materials & Resin Selection
  • Identifying Critical Dimensions
  • Gate Placement & Selection
  • Potential flow issues
  • Polycarbonate (PC)

Our plastic part designers and processors are familiar with many types of engineered resins including but not limited to:

  • Santoprene® 
  • High Density Polyethylene (HDPE)
  • Low Density Polyethylene (LDPE)
  • ABS
  • TPE
  • Acrylic
  • Polycarbonate (PC)

  • Polyvinyl Chloride (PVC)
  • Polypropylene (PP) 
  • Polystyrene (PS)
  • Nylon
  • Acetal
  • SAN
  • PC/ABS

For your plastic part design for injection molding we can also assist you with specialized plastic resin additives to enhance the processing or product such as:

  • Custom Pantone® Colors
  • Talc Filled 
  • Foaming Agents
  • Flame Retardant
  • UL Approved

  • Color Matching
  • Glass Filled
  • Custom Mold-Tech® Textures
  • UV Inhibitors

Typical engineering grade plastic resins we utilize are:

  • Philipps Ryton
  • Dupont LCP
  • CHIMEI
  • GE Cycoloy

  • GE Noryl / GTX 
  • GE Lexan
  • GE Valox
  • GE Ultem

Our engineers know to take into account the wide variety of custom plastic injection molding services or secondary/additional operations we provide. By doing this we can give our customers the understanding needed to be able to evaluate whether to spend extra monies on more complex tools and molds, or if their volumes are lower it may make sense to have a higher unit price in lieu of paying more up front. Some of the secondary operations our designers will consider are:

  • Insert Molding
  • In Mold Decorating 
  • Sonic Welding
  • Decorating
  • Kitting

  • Overmolding
  • Pad Printing
  • Heat Staking
  • Assembly

Cypress Industries services a wide range of markets for plastic injection mold design and plastic part design for injection molding. These industries include:

  • Industrial
  • Electronics 
  • Aerospace
  • Food & Beverage

  • Telecommunications
  • Energy
  • High volume Consumer Goods
  • Medical

When performing plastic injection mold design we are able to design to comply with many standards including DME. If required by customers Cypress Industries can design in any specified mold components whether metric or standard for bases, tool and die components, hot runner systems, hot sprue bushings, core & ejector pins, ejector sleeves and temperature control systems to ensure that replaceable components are available at the tools final destination anywhere in the world.

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