Standard mold parts are used extensively in almost all modern injection mold tools. Only a few special-purpose tools are constructed from Scratch, without taking advantage of the standard components available. Even these tools would have a small number of standard parts in them such as guide pillars, ejector pins and liner bushes.
The advantages of using standard mold parts are considerable. Some of the major advantages are listed below:

• Components are usually available ex stock,
  Quality is guaranteed
  Parts are made to close tolerances, so accurate interchangeability is assured.
  A wide variety of sizes and materials is available
  Standard parts cost less to buy than they would to make in a tool room.
  Using standard parts enables toolmakers to concentrate on making the cavity inserts and other custom parts,
  Using standard parts cuts down delivery times for tool manufacture.
  Tool rooms can produce more mold tools than they could otherwise.
  Replacement parts are easy to obtain and fit, making maintenance easier.
  CAD-compatible software from standard parts suppliers is available for reducing design times.
  Standard Parts Available

There is a vast array of standard components that may be purchased ‘off the shelf. A few of the major items are listed next.

• Mold Design Guide
  Mold Base Units
  Complete holster sets are available over a wide range of different sizes and materials. Ejector and stripper plate versions can be purchased and, recently, mold base sets with integral sets of splits and three-plate tools have been added to the range.
  Mold Plates
  A very large range of these is marketed in different sizes and thicknesses. If required, individual plates can be supplied with insert pockets pre-machined into them, Additionally, plates are available with screw holes, guide pillar holes and many other features pre-machined*
  Location and Alignment Components

Among the many components available are:

• Guide pillars and bushes
  Liner bushes
  Ejector plate guidance systems
  Register rings
  Side core slides
  Ejection Components
  _ Ejector pins
  , Blade ejectors
  Return pins
  Ejector plate early return systems
  Angled lift pins
  Blank form pins
  Spring ejectors
  Feed Systems
  Hot sprue bushes Runnerless systems
  Full hot runner systems
  Cooling Components
  Baffles
  Fountains
  Cool pins
  Heat pipes
  Plugs
  Manifold connectors
  Unscrewing Components
  Racks, pinions, gears
  Bearings, load screws
  Motors (hydraulic, electric and pneumatic)
  Miscellaneous
  Nozzles, gate bushes, thermocouples limit switches, proximity switches, instrumentation, side core stops, screws, chain, etc.

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