Official Precious Plastic Capi Spain.

Regular Steel Shredder V2.1

Regular Steel Shredder V2.1 Kit

Disassembled Precious Plastic V2.1 Rev3 shredder kit in carbon steel with blades, hex shaft, bearings, and hardware.
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Includes;

  • 74 laser cut parts in regular steel S235 . According to Precious Plastic drawings. PP Capi Spain has created the third revision of the original drawings, and we have improved the manufacturing tolerances facilitating the assembly.
  • 1 shaft made of regular steel F-112. According to Precious Plastic drawings (laser cutting parts fit onto this shaft).
  • 2 units UCFL204 bearings according to Precious Plastic specifications (bearings fit on the shaft and on the laser cut parts).
  • Regular steel nuts and bolts.
  • Precious Plastic specifies stainless steel. We offer alternative ways in regular steel, at a lower cost than stainless steel.
  • To assemble the shredder, you will have to complete several steps. This kit requires manual assembly and basic mechanical operations—it is not a plug-and-play system. Please check the assembly instructions.

Options

The kit offers multiple configuration options

We have a option, where you can order our “Evolution Shaft”. Based on the original Precious Plastic design, we have modified it by removing the excess and adding a keyway (key included).

We have an option with the 4 Conic Drill. This operation is essential for the assembly of the machine. Where the head of the countersunk screws are inserted. You can decide whether you make them yourself or we send them to you already made.

We have an option with the sieve with holes D= 8 mm (e = 1,5 mm, 149x149 mm) or with the sieve with holes D= 4 mm (e = 1,5 mm, 149x149 mm).

We also supply the individual components separately, according to your requerements.

Assembly Instructions

With our kit you would NOT get the complete shredder. In order to have the complete shredder, you would need the following items;

  • Hopper
  • Support base
  • Electric motor. Precious Plastic recommends a 380 V, 2.2 kW, three-phase motor.
  • Gearbox
  • Coupling between gearbox and shaft
  • Sieve
  • Electrical and control components

Assembly video by "Precious Plastic"

Assembly video by "Impresión 3d y reciclaje de plásticos"

Data Sheet

In this section, you will find all the technical documentation of our  “Shredder V2.1 Regular Steel”.

  • In Rev3, we have introduced minor changes in the designs, correcting small errors and improving the original drawings, in order to facilitate a better fit between parts.
  • All our parts are made from S235 regular steel (or a similar grade, depending on availability)
  • All parts are manufactured using laser cutting technology
  • This technology enables the production of parts with high-quality finishes and excellent tolerances.
Technical drawing showing the parts list and thickness dimensions of the laser-cut pieces for the Precious Plastic V2.1 Rev3 shredder.

Shafts based on the original Precious Plastic design, manufactured from F-112 (or F-114) regular steel using CNC (Computer Numerical Control) technology.

This process allows for high-quality surface finishes and excellent manufacturing tolerances.

Shaft for Shredder V2.1, manufactured from F-122 regular steel.

Based on the original Precious Plastic design, with significant improvements:

  • We removed the excess shaft length to enhance safety.

  • A keyway has been added to facilitate connection with the gearbox (recommended only for users with advanced mechanical skills)

Technical dimension drawing of the 278 mm Evolution Shaft with keyway in F-112 steel for the Precious Plastic shredder.
📦 Hardware Kit Detailed Content and Technical Quality:
  • 🔢 Total Number of Pieces: The kit includes a complete set of 36 high-strength fasteners carefully matched for the structural assembly of the shredder housing.
  • 📜 Professional Manufacturing Quality (EN ISO 898-1): Bolts are supplied in property class 8.8 or 10.9 strictly compliant with the international ISO 898-1 standard. Class 8.8 delivers a minimum tensile strength of 800 MPa, while class 10.9 reaches 1040 MPa. This ensures the hardware can withstand heavy dynamic torque and constant impacts during the shredding cycle without stretching or failing.
  • 🛡️ Surface Treatments and Finishes: Features a protective zinc-plated, galvanized, or black-oxide finish. These industrial coatings offer superior corrosion and rust resistance, radically extending the lifespan of the hardware in workshop environments.
 

Here is a Shredder V2.1, assembled, welded, and finished with paint

Measuring the width of the assembled Precious Plastic V2.1 shredder box using a tape measure.
Measuring the internal hopper width of the assembled Precious Plastic V2.1 shredder box using a tape measure.
Measuring the side panel width of the assembled Precious Plastic V2.1 shredder box using a tape measure.
⚙️ Technical Specifications
    • Model: UCFL-204
    • Inner Diameter (Shaft): 20 mm (perfect fit with the original shaft and Evolution Shaft).
    • Housing Material: Heavy-duty cast iron to dampen structural vibrations.
    • Bearing Material: High-durability chrome steel.
    • Shaft Fastening: Set screws integrated into the inner ring for a secure lock against slippage.

    • Maintenance: Features a built-in grease nipple.

💪 Key Advantages for Your Shredder
    • Guaranteed Precision Fit: Say goodbye to dangerous clearances or loose plays.
    • High Load Capacity: Engineered to withstand both dynamic load (during shredding) and static load.
    • Misalignment Compensation: The self-aligning design absorbs minor deviations during frame welding, preventing premature blade wear.

 
Technical datasheet featuring dimensional drawing and load ratings for the UCFL-204 flanged bearing unit.

Optionally, we offer to perform Conic Drills: where the heads of the countersunk screws are inserted from the inside of the machine. This way, the screw heads will not come into contact with the blades.

🕸️ Sieve Selection (Filtering Sieve):
 
  • ⚡ D = 8 mm Sieve (High Speed): Engineered to optimize your workshop’s workflow. It allows faster material passage, resulting in higher shredding speed per hour. Perfect if you need to process large volumes of plastic quickly.

 

  • 🔎 D = 4 mm Sieve (Maximum Filtering): Designed for high-precision projects. It delivers a much smaller and uniform shredded plastic size, ideal for directly feeding injection machines or filament extruders without jamming.

 

  • 🛠️ Interchangeable & Robust: Both sieves are laser-cut from high-strength carbon steel, guaranteeing a perfect millimeter-accurate fit inside the shredder’s bottom drawer.

Tips

In this section, we provide a series of recommendations and tips, which we hope will be useful to you.

Coupling

To connect the shredder shaft to the gearbox, we recommend using a flexible coupling

Improved Safety

In case of jamming, the shaft will slide on the bushing, avoiding unwanted and dangerous over-tensioning. The bushing includes a keyway (only for users with advanced mechanical knowledge).

Prolong the life of your shredder

It absorbs minor misalignments between the shaft and the gearbox, thereby reducing vibrations and fatigue stresses

Improve efficiency

The motor will run more evenly, minimizing power surges

Flexible rubber coupling damper between the motor gear shaft and the twenty millimeter Precious Plastic shredder shaft.
Perspective view of a flexible rubber coupling with keyway and fastening screws for a shredder motor shaft.

Watch this video to learn how to insert the blades onto the shaft—no sanding required.

Gallery

Shredder Kits available from Precious Plastic Capi Spain

We offer shredder kits based on the official Precious Plastic designs, upgraded with optimized components, high-quality steel, and ready to ship. Select the model you need for your workshop, educational center, or makerspace, and transform waste into shredded plastic for your injection or extrusion projects.

Shredders Assembled by Precious Plastic Capi Spain

Save workshop time and guarantee professional mechanical performance. In this category, you will find our official-design shredders, fully assembled by the Precious Plastic Capi Spain technical team. Each housing is meticulously put together in Seville, ensuring perfect alignment of the blades and bearings. Perfect for schools, universities, and makerspaces looking for a robust solution that is ready to couple directly to a motor and gearbox without the need for heavy tools.

Components and Spare Parts by Precious Plastic Capi Spain

Are you building your own machine or do you just need to upgrade a specific part? In this category, we provide all our individual mechanical components and official spare parts. From high-precision blades and industrial bearings to our exclusive Evolution Shaft, you can purchase exactly the single piece you need for your recycling project. All components meet Precious Plastic's strict design standards and are ready to ship to your workshop.

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