11kW Shredder Blower

This article's table of contents introduction:

1. What is an 11kW Shredder Blower?
2. Key Performance Characteristics (Estimates)
3. Common Applications
4. Important Considerations Before Buying
5. Key Questions to Determine If This Is the Right Machine
6. Example Manufacturer / Product Types

It seems you are asking about a 11kW shredder blower, likely referring to a combination machine that both shreds material and then pneumatically conveys (blows) the shredded output.

This is a very specific and powerful piece of equipment. Here is a breakdown of what you are likely looking at, its common applications, and key specifications.

What is an 11kW Shredder Blower?

It is an industrial/commercial machine combining two functions into one unit:

1. Shredder: Heavy-duty blades that reduce materials (like wood, paper, plastic, or green waste) into smaller chips or pieces.
2. Blower: A high-power fan that creates a vacuum to suck the shredded material into the cutting chamber and then blows it through a pipe (typically 150mm-200mm diameter) to a collection point (like a bin, hopper, or truck).

The 11kW (approx 15 HP) motor is the total power for the entire unit, powering both the shredding mechanism and the blower fan.

Key Performance Characteristics (Estimates)

• Motor Power: 11 kW (15 HP)
• Electrical Supply: Typically 3-Phase (e.g., 400V, 32A). Single-phase is extremely rare at this power level.
• Shredding Capacity: Very high. Depending on the material:
  • Wood: Can handle branches up to 150mm - 200mm (6-8 inches) in diameter.
  • Paper/Plastic: Large volumes (e.g., several tonnes per day for a paper shredding company).
• Blowing Distance: Capable of moving shredded material 15 to 30+ meters (50-100+ feet) vertically or horizontally.
• Output Size: Often equipped with screens to ensure consistent chip size (e.g., 10mm, 20mm, or 40mm).
• Weight: Very heavy. Expect 500kg to 800kg (1100 - 1760 lbs) or more.

Common Applications

This is a professional-grade machine, not for home gardening. Typical users include:

• Tree Surgery / Arborist Companies: For chipping brush and blowing directly into a truck.
• Landscaping & Green Waste Recycling: Processing large volumes of leaves, grass, and prunings.
• Paper & Document Shredding (Industrial): Shredding files, books, or cardboard and blowing into a compactor or skip.
• Biomass / Pellet Production: Reducing raw wood to a consistent size for further processing.
• Waste Management Companies: Sorting and reducing mixed waste streams.

Important Considerations Before Buying

1. Power Source: You must have a 3-phase electrical supply (400V/480V). Check your motor's starting method (Direct-on-line, Star-Delta, or Soft Start). A soft start is highly recommended to prevent massive in-rush currents.
2. Piping: You will need rigid, smooth-bore piping (often steel or heavy-duty PVC) for the blower output. Flexible hoses create friction and drastically reduce performance.
3. Maintenance: 11kW machines have heavy-duty bearings, knives (blades), and screens.
   • Blades: Usually reversible (can be turned for double life) and will need sharpening or replacement.
   • Anvils: A counter-cutting bed knife needs setting and replacement.
   • Belts: Power is often transmitted via V-belts which will need tensioning and replacement.
4. Safety: These machines are extremely dangerous.
   • Look for safety interlocks on all access doors.
   • Use extreme caution when feeding material (never reach into the hopper).
   • Ensure an emergency stop button is accessible.
   • Wear hearing protection (they are very loud) and eye protection.

Key Questions to Determine If This Is the Right Machine

• What is the material? (Wet green waste dulls blades faster than dry wood).
• What is the required output size? (Small screens = lower throughput).
• What is the target throughput? (e.g., 2 cubic meters per hour? 10 cubic meters per hour?)
• How far do you need to blow the material?

Example Manufacturer / Product Types

• Heizohack: High-quality German wood chipper/blowers.
• Jenz: Another major German manufacturer known for efficient blower systems.
• Saelen: French manufacturer of industrial shredder-blowers (e.g., their Elite or Hunter series often have 10-15kW models).
• Morbark: US manufacturer of heavy-duty tub grinders (though they are often larger).
• Crambo / Komptech: For more industrial waste shredding.

In summary: An 11kW shredder blower is a serious, powerful, and expensive piece of industrial equipment for high-volume processing. Ensure you have the proper electrical infrastructure (3-phase), a clear understanding of your material, and a plan for its heavy maintenance.