Exapro online catalogue contains thousands of used machines for sale. Attracting buyers from all around the world, we specialize on selling industrial equipment for different fields of business. For better navigation, all offers are divided into main categories depending on the use of the machine. Category of used Plastic machinery is dedicated to machines involved into production of plastic. Injection moulding machines for sale represent the most popular best selling subcategory within Plastic machinery.
Plastic
Speaking of plastic, what do we really know about this material? We buy water in plastic bottles, use plastic containers to store our food, our toothbrushes and even certain pieces of our wardrobe are made of plastic. Plastic is known to be a non-biodegradable material, which means it can not disintegrate on its own like other bio waste. Hence the big emphasis is put on recycling plastic properly. Outside our homes we have separate containers for plastic collection and it’s not recommended to mix plastic with other human waste: food scrapes, paper or glass.
Most common plastics we use on a daily basis are:
- Polyester (PES) – used for making fibers and textiles. (Check the tags on your clothes, you’ll be surprised how many pieces in your wardrobe are actually made of polyester)
- Polyethylene terephthalate (PET) – water bottles, cling film
- Polyvinyl chloride (PVC) – plastic window frames, flooring and plumbing pipes
- Polystyrene (PS) – food containers, plastic cutlery, cups and plates
- Polypropylene (PP) – yogurt containers, bottle caps, drinking straws
Due to their relatively low cost, ease of manufacture and versatility, plastics are used in an enormous and expanding range of products, from paper clips to spaceships.
Injection Moulding Machines for Sale
Back to our best selling product category – Injection moulding machines for sale. Those machines also have the name of injection molding process or injection molder, and are used for plastic product manufacturing. Plastic parts are produced by injecting plastic into a mould. Production process has 4 steps overall:
- 1. Plasticization
- 2. Injection
- 3. Cooling
- 4. Ejection
In the first production phase – plasticization, plastic is softened under high pressure. Soft plastic is then injected into the mould. Cooling down, plastic retains the shape of the mould. The moulds installed on the machine usually consist of two shells, of which one part is fixed and another is movable. These two shells are pressed strongly against each other during molding and then separated to allow ejection of the produced part.
Here is a video to show you Krauss Maffei injection moulding machine in action.
Strengths
The main strengths of injection moulding machines are repeatability and a wide range of plastics that can be used for moulding. Injection molders are known for low labor cost and low scrap losses. At the same time, the tolerance of injection moulding machines is really high.
On Exapro online platform you can filter your search for used injection moulding machines for sale and use criteria like power in tons, screw diameter or shot volume to specify your requirements. Offered machines can also be filtered by location, year of production or name of the manufacturer.
Main Manufacturers
In Exapro online catalogue you will find all the biggest manufacturers of injection moulding machines for sale. The main brands in the industry include Battenfeld moulding machines, Arburg moulding machines, Sandretto moulding machines and Cincinnati Milacron machinery.
Plastic injection molders are high quality and precision machines, which also makes their final price quite high. A solution can be purchasing a used injection moulding machine for a more affordable price.
If you have used injection moulding machines for sale, do not hesitate to place an offer for free on Exapro online marketplace.
