There are many variables and impacts that lifters can have on your molding process and final parts. Randy Kerkstra recently published an article at the Plastics Technology site (ptonline.com) that went into more detail on lifters and was a continuation of his previous post. (more…)
With the increasing complexity of molds and the parts that they produce, injection molders are forced to maximize the productivity of each tool. In his continuing discussion on hydraulics over on the moldmakingtechnology.com site, Randy discusses Hydraulic Driven Slides. (more…)
Randy’s latest series on ptonline.com addresses the challenges that many shops face with lifters. Having managed thousands of repairs and preventative maintenance activities every year, he has seen many of the issues and challenges that molding operations encounter on a regular basis. (more…)
Hydraulics and efficient molding go hand in hand. In this recent article on MoldMakingTechnology.com, Randy explains when a self locking cylinder is an attractive and effective option.
The basic message is that a locking cylinder is a good option when there is not sufficient space for the required bore size. This option helps prevent blow back via a mechanical lock on set position that will lock the hydraulic piston. (more…)
Designing the tool based on the material to be used is one way that Randy has been able to enlarge his process window, reducing the risk of quality issues.
In this article, he addresses many of the considerations and gives real examples with real materials and real situations that happen in shops every day.
You can read the full article on PTonline.com here: Tooling: Designing the Tool for the Material
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Hydraulics are a very important element of successful and effective tooling, and Randy continues his hydraulics focused article series on moldmakingtechnology.com.
This article discusses the importance of having enough pressure or a cylinder that is rated to provide enough pressure based on the needs of the mold.
Randy does a nice job of explaining the concept and also provides a few things to consider when it comes to the cylinder ratings. You can read the entire article here: The Designer’s Edge: Avoiding Cylinder Failure