In three forms it is important to consider how the costs of injection molding are determined:
- To check if the commodity is competitive on the market,
- To recheck with evolving plastic fabrics, cavities, volumes or press measurements so that we can see if additional benefit is produced and
- To determine whether the molding costs of the out-sourcing manufacturer are appropriate.
To assess molding prices, four basic elements must be analyzed:
- equipment costs,
- labour costs,
- process speeds and
- tooling costs.
The volume or expenses per cubic inch was not just the expense per pound of raw material to be obtained when measuring production quality.
If necessary, regrind plastic is good to use as the cost typically amounts to around half of new plastic material.
Typically 18 percent of the sum by weight is the assurance that injection molded part should be safely used. Tests demonstrate, though, that 100% regrind may be of same performance as 100% virgin material with respect to final physical quality.
Despite the usage of hot runner system, the volume of materials that form the runner and the sprue does not reach 18% of the shot by weight. In compliance with this thumb law, only 18% of regrind content is suitable for re-usage.
The clamping tonnage scale of the press is calculated by the lock. It is determined by estimating and multiplying the estimated region of the cavities by a multiplier from 2 to 8, i.e. .the amount of tons needed is to hold the mold closed under injection force.
Regardless of its position, hour prices of injection molding machine or MHR fluctuate, with the Northeast and West being the most expensive regions of the U.S.
The average molding time depends primarily on the course of the cooling process.
The expense of equipment is not typically amortized over a product ‘s lifespan but instead charged as a lump amount for front.