POR grinder model MAGNUM: - knife rotor, HP 25 motor - HP 2 hydraulic power unit - mouth opening 870 x 730mm - indicative production from 250 to 350 kg/h - overall dimensions 1700x1300xh=1750mm - weight approximately 1500 kg

### Operating principle of a POR Shredder/Grinder Model MAGNUM

The POR MAGNUM model shredder/grinder is designed to reduce the size of materials through a shredding process. This type of equipment is widely used for processing materials such as wood, plastic, metal, and waste materials in general. The operating principle of the MAGNUM is based on a robust and highly efficient shredding mechanism.

**1. **Composition of the Shredder:**
- **Shredding Gears:** The shredder is equipped with rotating gears or knives that crush and crush the material. These gears are designed to tackle tough, tough materials.
- **Shredding Chamber:** This is the part where the actual shredding takes place. The material is fed into the chamber and subjected to the action of the gears or knives.
- **Feeding System:** The material is introduced into the shredder through a feeding system, which can be manual or automatic.
- **Selection Grid:** Some models, including the MAGNUM, may have a selection grid that allows you to adjust the size of the final particles.

**2. **Operating Principle:**
- **Material Feeding:** The material is loaded into the shredder via the feeding input. This can be done manually or through an automated feeding system.
- **Shredding:** The rotating gears or knives inside the shredder start moving at high speed. These components break the material into smaller pieces through a cutting and crushing action.
- **Size Selection:** After shredding, the material is passed through a selection grid (if present) which determines the final size of the particles. Larger particles can be processed back into the shredder for further size reduction.
- **Material Output:** The shredded material is expelled through an outlet and can be collected in a container or transferred for further processes.

### How to use it

1. **Preparation:**
- **Checking the Shredder:** Before use, check the shredder to ensure that all parts are in good condition and that there are no signs of wear or damage.
- **Grid Setting:** If your shredder has a selection grid, set it to your desired particle size.

2. **Operation:**
- **Loading the Material:** Introduce the material to be shredded into the feeding system. Be sure not to overload the shredder and follow the manufacturer's recommendations regarding the type and amount of material.
- **Starting the Shredder:** Turn on the shredder and start the shredding process. Monitor operation to ensure the shredder operates smoothly.
- **Monitoring and Control:** Regularly check the shredder during operation to ensure there are no snags or problems. Adjust the selection grid if necessary.

3. **Maintenance:**
- **Cleaning and Inspection:** After use, clean the shredder and inspect the parts for signs of wear. Remove any remaining material to avoid build-up and future problems.
- **Lubrication:** Follow the manufacturer's recommendations for lubrication of the moving parts of the shredder to ensure smooth and long-lasting operation.
- **Parts Replacement:** Periodically check and replace worn gears or knives to maintain shredding efficiency.

### When it is best to buy a used shredder/grinder

1. **Significant Work Volume:** If your company has a high volume of material to shred, purchasing a used shredder can be an economical and advantageous solution to manage excess materials.

2. **Limited Budget:** If your budget for new equipment is limited, a used shredder can offer a more economical solution without compromising capacity and efficiency.

3. **Specific Capacity Requirement:** If you need a shredder with particular technical specifications that are not readily available or which incur high costs when purchased new, a used model can meet these needs at a lower price.

### Why it is better to buy a used shredder

1. **Economic Savings:** Buying a used shredder offers significant savings compared to the cost of a new one. This is especially beneficial for companies looking to reduce costs without compromising performance.

2. **Brand Reliability:** The MAGNUM model, if well maintained, can continue to offer good performance even when used. Shredders from reputed brands are designed to last and can offer a long service life even when used.

3. **Immediate Availability:** Used shredders can be available immediately, reducing waiting times compared to purchasing a new model and allowing you to start the operation without long waits.

4. **Testing and Reviewing:** Many used shredder dealers test and review to ensure the equipment is in good condition. This provides a certain guarantee of reliability and reduces the risk of malfunctions.

5. **Resale Value:** A good quality used shredder can maintain a good resale value, offering a safer and more flexible investment for future needs or upgrades.

In summary, purchasing a used POR MAGNUM model shredder/grinder can be an advantageous choice for companies that need reliable and robust equipment for shredding materials at a low cost. By making sure you buy from reliable sources and check the condition of the equipment, you can get a great cost-effective solution without compromising on quality and efficiency.