SC1650 Hammermill Shredder Chipper – More Power, More Capacity, Faster Cleanup

Overview

What It Handles

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Built for Larger Properties and Heavy-Duty Cleanup

Best For

• Property owners with 3+ acres or heavy seasonal cleanup
• Storm cleanup, fallen limbs, and larger brush piles
• Users who have outgrown smaller machines like the 12P
• Homeowners wanting serious performance without stepping into full commercial equipment

What It Does

• Chips branches up to 4 inches
• Shreds leaves, brush, and debris with 36 hammermill hammers
• Processes large volumes of material quickly and consistently
• Reduces bulky debris into usable mulch and manageable output

The SC1650 is designed for property owners who need more than a standard homeowner chipper can handle but don’t want the cost or complexity of full commercial equipment. Built with the same craftsmanship as all MacKissic machines, it combines a powerful chipping system with a high-capacity hammermill to process material faster and more efficiently.

With 36 free-swinging hammers producing tens of thousands of impacts per minute, the shredder section aggressively breaks down leaves, brush, and organic debris. The chipper side features a heat-treated steel blade capable of turning branches up to 4 inches thick into clean, uniform chips — often in under a minute for large limbs.

A centrifugal clutch system allows for easier starting and protects the machine under heavy loads, helping maintain performance and extend engine life during demanding use.

If you’re dealing with larger properties or heavy seasonal cleanup, the SC1650 is the next step up from homeowner models like the 12P.

Why the SC1650 is Different

• Hammermill Shredding System
36 free-swinging, heat-treated hammers allow the machine to process a wider range of material more efficiently than fixed-blade systems.

• Heavy-Duty Steel Flywheel
Precision-balanced for smoother operation, consistent chipping, and reduced vibration.

• Centrifugal Clutch Drive
Makes starting easier and helps protect the engine under load by allowing it to disengage when needed.

• Reversible Wear Components
Hammers can be rotated multiple times to extend service life and reduce maintenance costs.

• Wide-Opening Hopper with Blowback Shield
Supports fast loading while helping control material during operation.

Key Specifications (Quick View)

• Chipping capacity: up to 4″ diameter
• Shredding capacity: up to 1-1/4″ material
• Hammer count: 36 free-swinging hammers
• Flywheel: 13″ steel, precision balanced
• Engine: Briggs & Stratton

Key Features

• More capacity and throughput than homeowner machines like the 12P
• Handles larger material with less effort and fewer slowdowns
• Designed for frequent, heavy-duty residential use
• Built in the USA with long-term durability in mind

Heavy Seasonal Cleanup — Without Slowing Down

• Large volumes of leaves, garden debris, and organic material
• End-of-season cleanup from multiple acres
• Material that would require multiple passes with smaller machines

Brush Piles and Dense Yard Waste

• Thick brush, tangled limbs, and dense organic piles
• Overgrown areas, fence lines, and wooded edges
• Debris that clogs or slows down lighter-duty machines

Larger Branches and Limbs (Up to 4”)

• Branches up to 4 inches in diameter
• Fallen limbs from storms or routine property maintenance
• Long branches quickly reduced into usable mulch

👉 A typical 8–10 ft branch can be processed into clean chips in under a minute

High-Volume Shredding (Hammermill System)

• Leaves, stalks, and smaller organic material
• Pine needles, garden waste, and soft debris
• Material requiring fine breakdown for compost or mulch

👉 The 36 hammer system produces tens of thousands of impacts per minute, aggressively breaking down material without constant refeeding

Mixed Material Cleanup (Real-World Use)

• Alternating between branches, leaves, and brush without stopping
• Yard cleanup where material is not pre-sorted
• Continuous feeding without constant adjustment

When a Smaller Machine Starts to Struggle

• Jobs where a 12P requires slower feeding or repeated passes
• Situations where throughput becomes the bottleneck
• Properties where cleanup time is becoming a problem

👉 The SC1650 is designed to step in when workload increases — not just size, but volume and speed

Compare: SC1650 vs 12P

Choosing the right machine comes down to how much material you’re processing, how often you’re using it, and how heavy the workload is.

Choose the SC1650 if:

• You’re maintaining larger properties (3+ acres)
• You regularly deal with large brush piles and storm debris
• You want to chip larger branches (up to 4”)
• Cleanup volume is high and time matters
• You’ve felt limited by smaller machines

👉 The SC1650 is built for heavier workloads and faster cleanup

Choose the 12P if:

• You’re maintaining smaller properties (½ to ~3 acres)
• Most material is light brush, leaves, and yard debris
• You want a lighter, easier-to-move machine
• Cleanup is occasional or seasonal
• You don’t regularly handle larger limbs

👉 The 12P is ideal for general homeowner use and routine cleanup

Key Differences at a Glance

SC1650

• 4” chipping capacity for larger material
• 36 hammer design for higher processing volume
• Built for faster cleanup and continuous feeding
• Better suited for frequent or demanding workloads

12P

• Up to 3-1/2” chipping capacity
• 24 hammer design for homeowner use
• Lighter and easier to maneuver
• Ideal for seasonal and recurring cleanup

Still Not Sure?

If your cleanup is:

• SC1650 Best for larger properties and high-volume cleanup

• 12P Best for smaller properties and routine yard maintenance

Key Specs (Quick View)

• Chipping Capacity: up to 4″ diameter
• Shredding Capacity: up to 1-1/4″ material
• Hammermill: 36 free-swinging, heat-treated hammers
• Shredding Impacts: ~90,000+ hits per inute
• Chipping Knife Speed: ~93 MPH

Engine & Drive System

• Engine: Briggs & Stratton 16.50 Gross Torque OHV
• Engine Size: 420cc
• Start Type: Electric start
• Drive System: Centrifugal clutch for easier starting and load protection

Machine Build

• Flywheel: 13” diameter, heat-treated steel
• Flywheel Weight: 67 lbs
• Rotor Weight: 38 lbs
• Construction: Heavy-duty steel components

Hopper & Material Handling

• Chipper Opening: 11-3/4” x 7-3/4”
• Chipper Throat: 4-1/8” x 4-1/4”
• Shredder Hopper Opening: 18-3/4” x 18-1/2”
• Shredder Throat: 11” x 5-1/2”

Size & Transport

• Weight:
  • SC1650E: 337 lbs
  • SC1650E (with optional Highway kit): 444 lbs
• Transport Options:
  • Towable by ATV or tractor
  • Highway towable

Warranty

• Machine: 2-year consumer / 90-day commercial
• Engine: 2-year consumer / 90-day commercial

Full Technical Specifications

Machine Specs

Engine Specs

All SC1650 units ship directly from our Pennsylvania factory via freight carrier.

What to Expect

• Ships on a pallet via LTL freight
• Delivered curbside with lift-gate service available
• Frame, axle, and wheels arrive fully assembled
• Minimal setup required before first use (typically under 15 minutes)
• Add engine oil and fuel — ready to operate

Delivery Options

• Residential Delivery
  Delivered to your home with lift-gate service available
• Commercial Address Delivery
  Lower-cost option if you have access to a business location with a dock or forklift
• Freight Terminal Pickup (Depot)
  You may choose to pick up your unit at a local freight terminal to reduce delivery cost

Shipping Cost Overview

Shipping costs vary based on:

• Delivery location
• Residential vs. commercial delivery
• Lift-gate service

Typical freight charges include:

• Base freight cost
• Residential delivery fee (if applicable)
• Lift-gate service (if needed)

👉 Final shipping cost is calculated at checkout before purchase. View full shipping details →

Delivery Details

• Pallet footprint: approximately 50″ x 42″
• Shipping weight: approximately 422-545 lbs (varies by model)
• Shipped upright and secured for transport

No Sales Tax Outside Pennsylvania

Orders shipped outside of Pennsylvania are not charged sales tax.

Questions Before Ordering?

If you have questions about:

• delivery location
• freight options
• timing

We’re happy to help before you place your order.

Shipping Specs