Shakaerator 400 and 500 Classic

A value-for-money high output sub-soiler with an innovative folding-wing frame design, the Shakaerator 400 and 500 Classic have been created for farmers looking for performance and value, who want the versatility to switch working widths to match soil conditions and different tractors.


The machine's folding wings grant farmers greater flexibility, reducing horsepower requirements when the ground is heavy, enabling the machine to work on smaller tractors, and proving highly effective when called upon to treat tramlines. 

Building on the successful Shakaerator platform, the 300 and 400 models feature the classic vibration unit, and benefit from the same low draught legs which heave and aerate without mixing topsoil and subsoil - protecting the fertile top layer and aiding crop growth.

Key features

  • 4.0m and 5.0m working widths
  • 3.0m working widths (wings folded)
  • Three-point linkage mounting
  • 24” shear bolt protected legs
  • 30" gas-strut auto-reset legs
  • Innovative low-draught leg design
  • Replaceable Euroshin and longlife points
  • 1.0m and 2.0m folding wing extensions
  • Robust super-strength steel mainframe with hardened pins for extra durability
  • Sturdy storage legs, angled for easy access
  • Heavy-duty rams for fast folding and durability
  • 7-9 or 9-11 leg configurations
  • Optional vibration unit

SHAKAERATOR 400 Classic in action

See the Shakaerator 400 Classic with its unique folding wings in action:


Folding wing extensions

Foldable wing extensions of 1.0 or 2.0m are available boosting the working width to 4.0 or 5.0m at the touch of a button, and allowing customers to configure the size of the machine to match the soil conditions, the task at hand, or the tractor used for the job.

Proven track record

Precision-engineered in the UK, the latest generation of McConnel Shakaerators are an evolution of an award-winning design that has proven effective for more than 35 years – delivering increased crop yields, protecting the soil, and reducing compaction.


  • Flexible working widths
  • Flexible power requirements
  • Relieves soil compaction
  • Low-draught performance reduces fuel consumption
  • Proven deep-soil conditioning
  • Improves vertical drainage
  • Exceptional clod-breaking
  • Promotes crop growth
Model Shakaerator 400 Classic
Shakaerator 500 Classic
Main frame

Working width
4.0m (13'1")
5.0m (16'3")
Frame type - Rigid
3-piece folding
3-piece folding
Attachment - 3-pt linkage CAT II CAT II
Working depth range (24" leg)
Max 355mm (14") Max 355mm (14")
Working depth range (30" leg) Max 500mm (20") Max 500mm (20")
Depth adjustment increments 25mm (1")
25mm (1")
Road lighting kit Standard Standard
Legs and Points    
Number of legs 7 or 9
9 or 11
Leg spacing 570mm or 470mm
570mm or 470mm
Leg length 600mm (24") or 750mm (30")
600mm (24") or 750mm (30")
Leg height adjustment increments 25mm (1") 25mm (1")
Gas-strut A/R protection Optional
Shear-pin protection Optional
Standard Euro point Optional Optional
Wide Delta point Optional Optional
Wear shin Standard Standard
Vibration unit    
Hydraulic drive Standard Standard
540 PTO drive N/A
1000 PTO drive N/A N/A
Rear packers    
600mm (24") Consolidator Optional
600mm (24") Ridge packer Optional
600mm (24") Shark-fin packer Optional Optional
600mm (24") Flat Roller N/A N/A
Rear scrapers Standard Standard
Leading disc Optional Optional
Machine weight* 3,900kg 4,400kg
Transport width 3.00m (9'10") 3.00m (9'10")
Transport height 1.6m (5'3") 1.6m (5'3")
Min Tractor hp 180hp 240hp

* Weight dependent on configuration