15kW Shredder Blower

This article's table of contents introduction:

1. What is a 15kW Shredder Blower?
2. Typical Specifications for a 15kW System
3. Common Applications
4. How it Typically Works (System Design)
5. Things to Consider
6. Do You Need a Complete "Shredder Blower" Unit or Just the Blower Component?
7. Summary

It seems you are asking about a 15kW Shredder Blower. This is a specific piece of equipment typically used in industrial recycling, waste management, or material processing (such as wood chipping, paper shredding, or plastic granulation).

Here is a breakdown of what a 15kW Shredder Blower is, its typical specifications, applications, and considerations.

What is a 15kW Shredder Blower?

A "Shredder Blower" is a combined system or a specific component that integrates two functions:

1. Shredding/ Grinding: Reduces the size of the input material (e.g., wood, paper, plastic, leaves).
2. Pneumatic Conveying (Blowing): Use a high-power fan or impeller to suck the shredded material through a screen and blow it out through a pipe or hose into a collection bin, truck, or bagging station.

The 15 kW (approx. 20 HP) rating refers to the motor power. This is a heavy-duty, commercial/industrial power level. It is significantly more powerful than a small garden chipper.

Typical Specifications for a 15kW System

• Power: 15 kW (Three-phase electric motor is standard, typically 380V-415V).
• Motor Speed: Usually 2,900 - 3,600 RPM (direct drive or belt driven).
• Shredding Capacity:
  • Wood: Branches up to 4-6 inches (100-150mm) in diameter.
  • Paper/Cardboard: Large volumes of industrial waste.
  • Leaves/Green Waste: Very high throughput.
• Blower Output: Throws material 30-100+ feet (10-30+ meters) depending on pipe diameter and material density.
• Weight: Typically 200 kg – 500 kg (440 lbs – 1100 lbs).
• Key Components:
  • Heavy-duty steel housing.
  • Hardened steel flails/hammers or cutting disks.
  • Large, high-inertia blower wheel.
  • Replaceable wear plates.
  • Screen mesh for controlling output particle size.

Common Applications

1. Arborist & Tree Care: Chipping branches and blowing chips directly into a truck.
2. Municipal Green Waste: Processing leaves, grass, and prunings at a depot or while collecting.
3. Industrial Recycling: Shredding paper, documents, cardboard, or light plastics for volume reduction and baling.
4. Agriculture: Shredding crop residue (corn stalks, straw) and blowing it into a trailer or spreader.

How it Typically Works (System Design)

1. Infeed: Material (branches, paper, etc.) is fed into a large hopper.
2. Shredding Chamber: A rotating drum or disk with knives/hammers cuts the material against a shear bar or anvil.
3. Screen: Shredded material stays in the chamber until it is small enough to pass through a screen.
4. Blower Fan: A separate, high-RPM fan (often co-axial with the shredder or belt-driven) creates a strong vacuum that pulls the fine material through the screen and forces it out the discharge chute.
5. Discharge: The material is blown through a hose or spout to the desired location.

Things to Consider

• Power Source: 15kW is too large for a standard household outlet. It requires three-phase power (380V-415V) . If you only have single-phase power, you will need a phase converter or a different machine (Diesel/PTO powered).
• Material Type: A 15kW machine is perfect for softwoods, green waste, and dry paper. For hardwoods (oak, maple) or large logs, you may need a higher-torque, lower-speed shredder (like a hydraulic feed chipper).
• Safety: This is a high-energy machine.
  • Requires feed control (hydraulic rollers or hand-fed safety sticks).
  • Requires a "no-load start" (blower must be cleared before starting).
  • Never put metal, stones, or hard plastics (PVC pipe) into it.

Do You Need a Complete "Shredder Blower" Unit or Just the Blower Component?

• Complete Unit (All-in-one): You have a hopper, shredder chamber, screen, and blower wheel all in one chassis.
• Separate Blower Fan: You already have a shredder, and you need a 15kW centrifugal fan to create the pneumatic conveying system to move chips away from your existing shredder.

If you need a 15kW centrifugal fan for a pre-existing shredder:

• Static Pressure: You need high static pressure ( > 2,000 Pa) for pneumatic conveying of heavy wood chips.
• Material: The fan housing must be made of abrasion-resistant steel (usually AR500) to handle the wear.
• Impeller: A radial paddle wheel impeller (not an airfoil) is best for handling dusty, heavy material.

Summary

Yes, a 15kW Shredder Blower is a powerful, industrial-grade machine. It is a workhorse for:

• Commercial tree services
• Large-scale organic waste management
• Industrial document destruction
• Production chip processing

It is not a tool for a home garden. It requires a commercial environment, three-phase power, and proper safety training.

How can I help you further? Are you looking for:

1. A specific brand/model? (e.g., Vermeer, Bandit, Morbark, or a Chinese industrial model)
2. Troubleshooting? (e.g., "It clogs easily")
3. Specs for a DIY build?
4. Are you looking for a replacement blower fan for an existing machine?