Summary: In the following article, we will explain to you the pros and cons of plastic extrusion machines.
The process of extruding plastic involves changing the material from solid to liquid and then reassembling it into finished products. In other words, plastic is melted down and then reshaped into useful items. The plastic extrusion process and the Plastic Extrusion machine have some advantages, but there are also a few drawbacks to take into account.
Pros of Plastic Extrusion
3 of the major pros of plastic extrusion are as follows.
Plastic extruders molding is both more efficient and cheaper than other molding processes. The extrusion molding process uses thermoplastics, which are melted repeatedly and hardened repeatedly, thus allowing the waste to be reused rather than discarded.
With plastic extrusion machines, raw materials and disposal costs are lowered. Plastic extrusion machines operate continually, which reduces inventory shortages. Also, you can choose single screw extruder machines for improved efficiency. It also permits 24-hour production.
As long as the cross-section remains the same, extrusion molding can produce complex shapes. With a consistent cross-section, extrusion molding can provide considerable flexibility in the products manufactured. After a small modification to the plastic extrusion process, manufacturers can use it to produce plastic sheets or products with plastic attributes.
3.After Extrusion Alterations
Many manufacturers use rollers, shoes, and dies to change the shape of the plastic after it is removed from the extruder. The plastic remains hot when it is removed and this allows for post-extrusion manipulations.
4.High Speed, High Volume Production at Low Cost
Due to plastic extrusion’s many production capabilities, we can manufacture a high volume of parts quickly and inexpensively. Combined with lowered tooling costs and multiple machining centers, we are capable of even greater speed and cost-efficiency.
A plastic extrusion process includes the possibility of coextrusion. Unlike a single-layer extrusion, coextrusion involves two (or more) extruders. Coextrusion involves feeding molten liquid plastic from two extruders at different speeds and thicknesses into a single extrusion head, which forms it into the desired shape.
The process of plastic extrusion is incredibly versatile, enabling us to produce a wide variety of products with complex shapes and varying thicknesses, hardnesses, sizes, colors, and textures.
Cons of Plastic Extrusion
Plastic extrusion has also some cons.
It is difficult to predict exactly how much the plastic will expand after it is removed from the extruder. The hot plastic often expands after it is removed from the extruder. This is called die swell. The manufacturer often accepts significant deviations
from the dimensions of a product because it is hard to predict the exact expansion.
There are alternatives to extrusion plastic molding that require an investment in a different type of extrusion equipment. Extrusion plastic molding does place limits on the types of products that can be manufactured.