The Polystruder GR PRO doesn't just any other plastic shredder.
It features an in-house built custom shredding algorithm called ShredAI, which reads data from its sensors to detect the material hardness. This allows it to determine the optimal shredding speed and adjust the motor speed and power limit in real-time.
It also includes numerous safety features that automatically stop the shredding process if a jam is detected, no material is present, the bin is full, or the hopper door is open during operation.
The Polystruder GR PRO stands out as the only single shaft plastic crusher machine available with a unique double-sided cutting blade design, resulting in a blade life that is twice as long as that of other plastic shredders.
It can shred PLA, PETG, ABS, NYLON, PC, plastic bottle, carbon and glass filled plastics with ease.
Additionally, the Polystruder GR PRO allows for faster shredding speeds of up to 5kg per hour, while also lowering maintenance costs and reducing overall downtime.
The unique blade profiles of the Polystruder GR PRO plastic shredder allows it to cut through thick materials, that can be compared its performance to industrial plastic shredder.
Single large blade shreds large plastic materials and decrease their overall dimensions for easier processing. 4 medium blades aid in reducing both large and medium-sized plastic pieces to even smaller sizes.
Finally 14 small blades shreds the remaining plastic efficiently and reduce the final piece size down to 3mm.
Equipped with 3mm thin blades, GR PRO plastic shredder is capable of shredding consistently every time.
After reprocessing the same material three times, the pellet size virtually identical in size with commercial virgin plastic pellets.
Moreover, no sifting is involved. Each shredding round is 6 times faster.
Still skeptical? Take a look at the photo above.
From left to right:
1.Pellet size after the first round. Shredding time: 30 minutes. 1kg of material with ShredAI algorithm.
2.Pellet size after the second round. Shredding time: 5 minutes. 1kg of material at full speed.
3.Pellet size after the third round. Shredding time: 5 minutes. 1kg of material at full speed.
4.Virgin pellet size shown for reference purposes only.
Robust and ultra-quiet 300W brushless DC motor with a 90:1 gear ratio, the Polystruder GR PRO plastic shredder effortlessly processes any plastic without interruptions.
When idling, the motor generates less than 55 dBA of noise, and during regular operation, it stays below 75 dBA, akin to a office environment.
Additionally, it is equipped with built-in features for overcurrent, overvoltage, temperature limit, and jam detection protections. This makes it one of the safest plastic shredders on the market today.
The only desktop class plastic shredder with an intuitive 3.2-inch touchscreen interface and advanced customization options.
Polystruder GR PRO plastic shredder features a 3-liter hopper for shredding plastic parts up to 125mm in size. It also includes a 4.5-liter collector bin with an LIDAR material sensor that detects when the bin is full, preventing overflow and disruptions.
With its large hopper and convenient collector bin, the Polystruder GR PRO enables efficient recycling operations. The hopper accepts sizable plastic parts, while the collector bin ensures seamless collection and prevents potential issues caused by overfilling.
We have successfully conducted shredding tests using the Polystruder GR PRO plastic shredder on a diverse range of 3D printing materials, including:
If you require testing on specific materials, please don’t hesitate to get in touch with us.
The shredding speed of the Polystruder GR PRO depends on multiple factors, including the material type, thickness, size, motor speed, and more. However, when shredding objects that are 30mm in size, made of PLA with a 1.6mm wall thickness and 20% infill, the Polystruder GR PRO has a maximum shredding capacity of approximately 3kg per hour.
Yes, the blades of the Polystruder GR PRO can be replaced by the user.
The Polystruder GR PRO can shred 10mm thick solid walled plastic parts (3D printed part with 100% solid infill). Maximum length of the part cannot exceed 150mm. We recommend cutting the parts with 5mm solid wall thickness or larger to 30mm in any direction before feeding through the machine with electrical or battery powered PVC pipe cutter.
There are virtually no limitations on the types of plastic that the Polystruder GR PRO can accept. However, it’s important to note that certain plastics with harsh additives, such as carbon fiber, wood, steel, and similar materials, can significantly reduce the lifespan of the shredding blades.
The Polystruder GR PRO features a highly efficient brushless DC motor with a maximum power draw capacity of 300W. However, on average, it consumes only 150W per hour.
ShredAI is an in-house developed custom shredding algorithm that operates by continuously monitoring real-time data such as motor power consumption, blade direction changes, and temperature. Based on this information, ShredAI makes decisions to automatically adjust the motor speed, power and direction for optimal shredding performance.
Polystruder GR PRO is designed to efficiently shred plastic waste. We strongly discourage the use of the Polystruder GR PRO for shredding any materials other than plastic. The device’s design and warranty are tailored exclusively to plastic shredding. Attempting to process other materials will result in the automatic voiding of the device warranty.
Average shredded plastic pieces varies between 3mm to 5mm. However we recommend shredding at least 2 times to achieve the more granular piece size. There could be some instances where some thin parts that as big as 20mm can fall in between blade spacers inside the collector bin.
We conducted several tests during the shredding process and found that the average noise level is 62 dBA, with a maximum of around 75 dBA. The test was conducted using a black PETG plastic object. Please note that the noise level is generated by the crushing sound during the shredding process and may vary greatly between different material types.
AI Powered Shredding (ShredAI)
AI Powered Safety (ShredAI)
Smart Material Detection
Smart Temperature Monitoring
Automatic Shredding Speed
Automatic Motor Current Adjustment
Door and Bin Sensing
Moving Foreign Object Sensing
Incompatible Material Protection
Passcode Protection
Sensor Fault Detection
Motor Fault Detection
Over Temperature Protection
Over Current Protection
304 Stainless Steel Blades
Unique Double Sided Blade Structure
10 Teeth on Each Blade
Dual and Triple Micro-cutting Teeth
1 Large Cutting Blade
4 Medium Shredding Blades
14 Small Shredding Blades
Octagonal Blade Shaft - 304 Stainless Steel
Blade Spacers - 304 Stainless Steel
Blade Inserts - 304 Stainless Steel
Frame - 5052 Aluminum / G90 Steel
300W 24V BLDC Motor
90:1 Gearbox
Speed: 1 RPM - 10 RPM
40Nm Maximum Torque
55 dBA Idling Noise
75 dBA Operation Noise
Minimum: 0.5kg/hr
Maximum: 5.0kg/hr
Optimal: 1.5kg/hr
3 Liters Hopper Volume
4.5 Liters Collector Bin Volume
Dual Core 32 bit MCU
3.2in Touchscreen
Wi-Fi Connectivity
OTA Firmware Updates
5 Safety Sensors
Motor Safety Relay
6.8A/115VAC - 3.4A/230VAC
50-60 Hz
Average 200W/hr consumption
Length: 337mm - 13.2in
Width: 288mm - 11.3in
Height: 469mm - 18.4in
24kg / 52lbs
Plastic Shredder
Filament Maker
Filament Cooler
Filament Spooler
Copyright ©
2025
- Polystruder.
All rights reserved.
CAGE Code:
01N99
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