PT Blog

Tooling: How to Properly Size, Gates, Runners and Sprues, Part 3

Part one of this series (in March) discussed the importance of proper gate depths and gate widths. Part two (April) discussed two different types of gates, gate land length, and gate-freeze time. This month I will discuss edge gates and runner sizes.

Figure 1 depicts a simple edge gate. It is the most commonly used gate type—probably because it is the least expensive to machine. All that is required is an end mill to connect the cavity to the runner. This type of gate is also the easiest to measure its depth, which is critical in multi-cavity molds. However, this design has several shortcomings.

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Lindner Recyclingtech Installs Shredders Onsite Remotely

The coronavirus pandemic has caused a big shift in all businesses as everyone adjusts to a new reality. However, for manufacturing, there’s still machinery that needs to be installed.

German waste management company Hündgen ordered a new Lindner Micromat 2500 shredder that was delivered in March and the company’s facility’s retrofitting was in full swing. And then came the coronavirus lockdown.

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Performance Plastics’ Secrets to Seamless Mold Transfers

Having a mold made is a big investment for an OEM or brand owner of any size—a large enough outlay that it needs to be reliable the first time, every time. And once the tool is built and passes all tests, it’s up to the molder to ensure reliable parts are made on every cycle.

Truth be told, some molders are not able to use these tools effectively, devaluing this significant and time-intensive investment. At Performance Plastics in Cincinnati, we frequently see customers looking to transfer their molds because their previous molder couldn’t achieve production goals with the tool.

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Leading the Charge: Brand Owners Moving to Boost Recycled Content in Packages, Products

Where do you see yourself in five years?

If you ask brand owners, the answer is that they plan to be using more recycled content in their packaging and products. Many consumer-goods companies and retailers have committed to increasing recycled content in their packaging to an average of 25% by 2025, compared with the current global average of just 2%, according to the Ellen MacArthur Foundation.

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Blazing the Trail In Processing PCR for Corrugated Pipe

When you think of words like recycling, sustainability, and circular economy, corrugated pipe likely doesn’t spring to mind right away. The focus instead is in far-more visible plastics applications—notably single-use packaging—as brand owners, processors and the rest of the supply chain search for solutions that turn old plastics new again.

But if recycling is on your must-do list, most likely you can learn something from the 30-yr path blazed by Advanced Drainage Systems (ADS) that has made this producer of corrugated pipe one of the largest consumers of recycled HDPE in the U.S.  Some 60% of the pipe it produces now has recycled content— up from 24% 10 years ago—a figure it expects to grow.

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