Plastic shredder, Precious Plastics
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Project data
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Category: Plastic production URL (first publication): https://community.preciousplastic.com/academy/build/shredder License: CC BY-NC-SA 4.0 Organization: Precious Plastics Project status: Active
Maturity of the project: production / full product
Contains PDF-drawings: Yes CAD files are editable: Yes Assembly instructions are published: Yes Bill of materials is published: Yes
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Project details
Description
In this project, the development carried out by the Plastic Precious Plastic organization is presented, on the design and construction of a homemade plastic shredder, which uses blades made of 5mm thick stainless steel plates, a 1.5kW motor with reducer , among others. The information is obtained from the Precious Plastic page
Technical data
Some features of the machine:
- Version: 2.0
- Weight: 90 kg
- Dimension: 280 x 600 x 1142 mm
- Blade width: 5 mm, 6 mm
- Voltage: 380V
- AMP: 5.8A
- Nominal Power: 1.5 kW minimum
- Nominal Torque: 300 Nm minimum
- Output Speed: ±70 r/min
- Processed material: HDPE, LDPE, PP, PS.
- Max thickness: 4mm
- Size of hopper input: 400 x 200 mm
- Capacity: ±10 kg/h
Technical documentation
Plastic shredder - CAD-files
Plastic shredder - bill of materials
Other technical notes
Tips & tricks while making
- Take your time ensuring the box is square before any welding
- Use locknuts and ensure bearing bolts are tight
Assembly instructions
Here are some plans with the assembly sets and pieces, which can be detailed at this link
Zoom in
Zoom out
Tests, practical applications
We can see how the machine can crush some plastic objects, satisfactorily and achieving different grain sizes according to the mesh used, see this point in the video.
+ General Reviews 
Reviews
| Pos. | Qty. | Part Name | Part code | Part Type | Specifications | Review Status | Show All Comments | |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Shredding OverView A | reviewer: from the plans it was not quite clear which parts belong to the shredding unit (Shredding OverView A and B) | |
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| 1.1 | 1 | Shredding Sideplate | 1 | Stainless Steel | |
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| 1.2 | 1 | Shredding Bracket Bottom | 2 | Steel | |
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| 1.3 | 1 | Shredding Bracket Top | 3 | Steel | |
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| 1.4 | 1 | Shredding Shaft | 4 | Steel, Hex. 27mm L=320 | |
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| 1.5 | 1 | Shredding Framing Lasercutted Right | 5 | Stainless Steel, AISI 304 | |
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| 1.6 | 1 | Shredding Framing Lasercutted Left | 6 | Stainless Steel, AISI 304 | |
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| 1.7 | 2 | Shredding BearingSpacer 32x32, 6mm | 7 | Stainless Steel, AISI 304 | |
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| 1.8 | 2 | Shredding BearingSpacer, 3mm, | 8 | Stainless Steel, AISI 304 | |
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| 1.9 | 5 | Shredding Knife 1 5mm | 9 | Stainless Steel, AISI 304 | |
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| 1.10 | 5 | Shredding Knife 2, 5mm | 10 | Stainless Steel, AISI 304 | |
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| 1.11 | 4 | Shredding Knife 3, 5mm | 11 | Stainless Steel, AISI 304 | |
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| 1.12 | 13 | Shredding Knife Spacer, 6mm | 12 | Stainless Steel, AISI 304 | |
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| 1.13 | 13 | Shredding Fixed Knife, 5mm | 13 | Stainless Steel, AISI 304 | |
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| 1.14 | 14 | Shredding Fixed Knife 6mm | 14 | Stainless Steel, AISI 304 | |
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| 1.15 | 2 | Bearing | 15 | Steel, UCFL204 20mm | |
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| 1.16 | 1 | Shredding axe | |
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| 1.17 | 1 | Shredding bracket top | |
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| 1.18 | 1 | Shredding bracket bottom | |
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| 1.19 | 1 | Shredding Sieve | Stainless Steel, 01.04.2010 | |
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| 2 | 1 | Shredding OverView B | |
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| 2.1 | 1 | 6mm 2x 01.04.01 SidePlate | 1 | Stainless Steel AISI 304, 210x135x6 | |
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| 2.2 | 1 | 6mm 2x 01.04.02 Bearing spacer | 2 | Stainless Steel AISI 304, 32x32x6 | |
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| 2.3 | 1 | 6mm 13x 01.04.06 KnifeSpacer | 3 | Stainless Steel AISI 304, 50x50x6 | |
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| 2.4 | 1 | 6mm 15x 01.04.07 FixedKnife small | 4 | Stainless Steel AISI 304, 132x25x6 | |
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| 2.5 | 1 | 5mm 5x 01.04.03 Knife 1 | 5 | Stainless Steel AISI 304, 120x120x5 | |
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| 2.6 | 1 | 5mm 5x 01.04.04 Knife 2 | 6 | Stainless Steel AISI 304, 120x120x5 | |
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| 2.7 | 1 | 5mm 5x 01.04.05 Knife 3 | 7 | Stainless Steel AISI 304, 120x120x5 | |
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| 2.8 | 1 | 5mm 13x 01.04.08 FixedKnife Big | 8 | Stainless Steel AISI 304, 132x55x5 | |
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| 2.9 | 1 | 3mm 2x 01.04.09 BearingSpacer | 9 | Stainless Steel AISI 304, 40x40x3 | |
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| 2.10 | 1 | 3mm 2x 01.04.10 SieveBracket | 10 | Stainless Steel AISI 304, 121x50x3 | |
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| 2.11 | 1 | 3mm 2x 01.04.12 Side | 11 | Stainless Steel AISI 304, 135x30x3 | |
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| 2.12 | 1 | 3mm 1x 01.04.13 Bottom | 12 | Stainless Steel AISI 304, 149x33x3 | |
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| 2.13 | 1 | 3mm 1x 01.04.14 Top | 13 | Stainless Steel AISI 304, 149x30x3 | |
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| 2.14 | 1 | 3mm 2x01.04.15 Middle | 14 | Stainless Steel AISI 304, 161x135x3 | |
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| 2.15 | 1 | 3mm 2x 01.04.17 Side | 15 | Stainless Steel AISI 304, 135x41x3 | |
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| 2.16 | 1 | 3mm 1x 01.04.18 Bottom2 | 16 | Stainless Steel AISI 304, 149x41x3 | |
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| 2.17 | 1 | 3mm 1x 01.04.19 Top2 | 17 | Stainless Steel AISI 304, 149x41x3 | |
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| 3 | 1 | Framework | 3 | Steel, 01.04.2025 | |
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| 3.1 | 2 | Tube 30x30x3 | 1 | Steel, L=210 | |
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| 3.2 | 2 | Tube | 2 | Steel, 30x30x3 (1), L=600 | |
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| 3.4 | 2 | Tube | 4 | Steel, 30x30x3 (1) (1) (1), L=221 | |
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| 3.5 | 2 | Tube | 5 | Steel, 30x30x3 (2), L=40 | |
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| 3.6 | 2 | Tube | 6 | Steel, 30x30x3 (2) (1), L=40 | |
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| 3.7 | 4 | Tube | 7 | Steel, 30x30x3 (2) (2), L=620 | |
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| 3.8 | 2 | Tube | 8 | Steel, 30x30x3 (3), L=540 | |
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| 3.9 | 2 | Tube | 9 | Steel, 30x30x3 (4), L=150 | |
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| 3.10 | 1 | Tube | 10 | Steel, 30x30x3 (4) (1), L=150 | |
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| 3.11 | 2 | Tube 30x30x3 | 11 | Steel, L=210 | |
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| 3.12 | 4 | Tube | 12 | Steel, 30x30x3 (6), L=35 | |
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| 3.13 | 2 | Flat 30x30x3 | 13 | Steel, L=150 | |
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| 3.14 | 1 | Wood | 6 | Plywood, 145x535 mm | |
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| 4 | 1 | Electronics Box | 4 | Steel | |
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| 5 | 1 | Hopper Assembled | |
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| 5.1 | 1 | Side | 1 | Steel, 01.04.2024 | |
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| 5.2 | 1 | Front | 2 | Steel, 01.04.2024 | |
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| 5.3 | 1 | Front(Mirror) | 3 | Steel, 01.04.2024 | |
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| 5.4 | 1 | Side(Mirror) | 4 | Steel, 01.04.2024 | |
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| 5.5 | 2 | Bracket | 5 | Steel, Flat 30x30x3 L=120 | |
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| 6 | 1 | Electronics motor connector, Motorcoupling | 7 | Steel, p | |
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| 7 | 1 | Buy parts | |
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| 7.1 | 1 | Bearings | |
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| 7.2 | 1 | Electronics | |
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| 7.3 | 1 | Motor | +/- 2 kw | |
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| 7.4 | 1 | Power switch | |
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| 7.5 | 5m | LED indicator | 220V | |
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| 7.6 | 1 | Powercord | |
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