Precious Plastic Toolbox

Precious Plastic Toolbox

  • Academy

โ€บShredder Pro

1. Intro

  • Hello! ๐Ÿค™

2. Plastic

  • The Basics of Plastic
  • Safety and Fumes
  • Nerdy on Plastic

3. Build

  • Intro
  • Shredder
  • Extrusion
  • Injection
  • Compression
  • Shredder Pro

    • - Overview
    • - Build it
    • - Run it

    Extrusion Pro

    • - Overview
    • - Build it
    • - Run it

    Sheetpress

    • - Overview
    • - Build it
    • - Run it

4. Collect

  • Our Collection System

5. Create

  • Intro
  • Good design
  • Finished objects
  • Injection moulds
  • How to's

6. Business

  • Intro
  • Action Plan
  • Workspace Calculator
  • Business Plan Template
  • Bazar

    • Overview
    • Set up account
    • Set up payment
    • Listing guidelines
    • Set up shipping
    • Get featured

7. Spaces

  • Intro
  • Shredder
  • Extrusion
  • Injection
  • Sheetpress
  • Mix
  • Collection Point

8. Research

  • Robotic sorting
  • Beyond Plastic

9. Universe

  • Universe explained
  • Style guides
  • Make your logo
  • Community Program
  • Share back

๐Ÿ“ฆ Download

  • Download-Kit

๐Ÿ’ฌ Questions?

  • FAQ
  • Chat
Edit

Shredder Pro Specifications

Shredder Pro

๐Ÿ““ Shredder Pro information

NameShredder Pro
๐Ÿ““ TypeDouble Shaft Shredder
๐Ÿ’Ž Version1.0
๐Ÿ’ฐ Price new material in NL+/- โ‚ฌ2200 + motor
โš–๏ธ Weight340 kg
๐Ÿ“ฆ Dimension1205 x 550 x 1512 mm
โš™๏ธ Blade width6 mm
๐Ÿ”Œ Voltage400V
โšก๏ธ AMP16A
โฑ Monitoring interval time1h
โš™๏ธ Geared Motor
- Nominal Power2.2 kW minimum. 3-4 kW recommended
- Nominal Torque1100 Nm minimum - 3000 Nm max
- Output Speed15-25 r/min
- Minimum Service Factor1,5 (2,2kW) / 1,2 (3kW)

๐ŸŒ 3D Model

๐ŸŒฆ Pros & cons

Pros

Compared to previous Precious Plastic machines, this shredder is very robust and reliable. Everything has been calculated and dimensioned to handle the high stresses required to shred plastic.

Most industrial shredding systems require a shredding phase and a granulating phase. Thanks to the adjustable meshes, this machines is capable of carrying out both tasks!

This machine is designed for relatively easy assembly. No welding is required for the core shredding box, and all further welds are straightforward.

This shredder has also been designed to be easy to clean. In less than 30 minutes the shredder can be cleaned and ready for a different type of plastic, allowing community members to produce small batches of plastic.

Cons

Granulating is possible with only this shredder, but this step will still be slightly slower than with a dedicated industrial granulator. This machine is mainly for shredding, polyvalence came with a price.

Compared to original V3 Precious Plastic machines, this machine is harder to build even though we tried to keep things simple. Youโ€™ll need proper machines and skills.

This machine also requires specific equipment and a high powered motor making it a little harder to build from scrap. Be sure to fully read the bill of material to procure your components as your machine reliability depends of it.

โ™ป๏ธ Input & output

The machine can shred any plastic in any shape that fits between the blades. We have tested it with HDPE, PP, and PS. There is no limit of thickness that the shredder can handle. If the plastic piece is too thick, the blades will not shred as it has been designed so that plastic cannot jam the machine (depends on the motor power). PP, HDPE, PS from 0.7mm to 12mm have been tested successfully. Films are too thin and will slide in between the blades. Rubber, tires, and thermoset plastics have not been tested.

Shredder Pro

Definition of our flakes sizes

The shredded plastic can be used in three different Precious Plastic machines: extruder, injector, and Sheetpress. Thus, we have defined three different sizes of shredded plastic that work with each machine

Name:LargeMediumSmall
Visual:
Size:0-30 MM0-10 MM0-7 MM
Works with:SheetpressSheetpress
Injection
Compression
Sheetpress
Injection
Compression
Extrusion

To obtain these sizes, you need to use the right mesh. Install a 7mm sieve on the shredder to get small flakes or a 10mm sieve to get medium size. You can get the larger size without the use of a sieve. Depending on the size of the input material, you might need to shred several times to get the desired size.

Output and speed

MaterialDescriptionTimes shreddedOutput (Kg/h)SieveSize
HDPEShampoo bottles1st time36,7NoToo big
2nd time375NoLarge
Total30.9Large
PSTransparent CD cases1st time9.8NoMedium
2nd time86.57 mm sieveSmall
Total8.8Small
PPBottle caps1st time76.7NoLarge
2nd time9210 mm sieveMedium
Total41.8Medium

Shredder Pro

๐Ÿ™Œ Useful Links

  • Buy or sell parts & machines on our bazar
  • Find a local machine shop on our map
  • Visit our how-tos for upgrades and hacks
  • โญ๏ธ How to setup a full Shredder workspace
  • โญ๏ธ For questions go to our #build channel in Discord

If you need help, have questions or looking for someone to talk to in your lonely cold workspace. Head to the #build channel on Discord. Here we talk nerdy about machines.

Last updated on 10/18/2022
โ† Compression- Build it โ†’