EMEA-CIS English

CT820 Compost Turner

Compost Turner | Vermeer CT820

The professional-grade CT820 turns up to 6300 tons (5625 metric tons) of compost per hour. Rugged belt-drive operation and a heavy-duty frame give it the strength to get the job done, day after day. A state-of-the-art cab makes operation a pleasure and low-maintenance components reduce the need for repairs. Inside and out, the CT820 is built to last and equipped to take on anything.

Features and Benefits

  • Take command with an intuitive PT Tech clutch for easy, safe drum operation. The SPB820 also features high ground speeds and smart steering controls.
  • Put it to the test. The low-maintenance drum system and heavy-duty structural steel frame were built to stand up to abuse while requiring minimal maintenance.
  • Work smarter with the SPB820’s large-diameter drum, which allows more oxygen to infiltrate the windrow to shorten the compost cycle.
  • Ride in comfort and safety in the SPB820’s state-of-the-art cab. Automatic shut-off and easy maintenance also make this compost turner as safe as possible.
  • See your Vermeer dealer for comprehensive service and genuine Vermeer replacement parts.

Download Specs

CT820 Compost Turner

Collapse All Expand All
General Dimensions and Weights
Maximum Width (Operation)
9.1 m
Maximum Length (Operation)
4.9 m
Maximum Height (Operations)
6.1 m
Maximum Width (Transport)
3.2 m
Maximum Length (Transport)
76.2 cm
Maximum Height (Transport)
4.4 m
Weight (Four-Wheel Drive)
52000 lbs
23586.8 kg
6300 tons per hour (5625 metric tons per hour)
Make and Model
CAT C15 Tier III
Number of Cylinders
Gross Horsepower (Maximum)
540 hp
402.7 kw
Torque (Maximum)
1817 ft-lb
2463.5 Nm
Fuel Tank Capacity
225 gal
851.7 L
Max Fuel Consumption
29 gph
109.8 lph
Fuel Type
Air Cleaner
Dry-type, dual element with service indicator
Oil Filter
Spin-on CAT advanced efficiency engine oil filter
Recommended Oil
CAT DEU-ULS (Diesel Engine Oil - Ultralow Sulfur) multigrade SAE 15W-40
Oil Volume with Filter
43.9 qt
41.5 L
Maximum Angle of Continuous Operation
Cooling Medium
Caterpillar Extended-Life Coolant (ELC) or a commercial extended-life coolant that meets the Caterpillar EC-1 specifications
Coolant Capacity (Engine and Radiator)
18 gal
68.1 L
Air to Boil Temperature
145 AMP
Flexxaire 40 " (101.6 cm) diameter, auto-reversing
Clutch Type
PT Tech HPTO14FX, microprocessor-controlled, wet hydraulic clutch
Clutch Drive Engagement
Microprocessor-based clutch controller uses a series of pulsed signals to engage drum
Hydraulic System
Tank capacity
61 gal
230.9 L
Recommended Hydraulic Fluid
ISO 68 (or Vermeer equivalent)
Filtration Method
Return filter and suction strainer
Electrical System
System Voltage
12V, with two heavy-duty batteries that have a total of 2800 cca
System Protection
Primary disconnect and fusible links
Constructed of 6 " x 6 " x 0.25 " (15.2 cm x 15.2 cm x 0.6 cm), 6 " x 4 " x 0.375 " (15.2 cm x 10.2 cm x 1 cm) and 8 " x 6 " x 0.5 " (20.3 cm x 15.2 cm x 1.3 cm) steel tube with continuous welding
Operating Height Adjustment
Operating Height Adjustment
The machine includes hydraulic cylinders that independently adjust each front wheel and jointly adjust the rear wheels to raise the frame from 0 - 18 " (0 - 45.7 cm) above ground
Ground Drive
Ground Drive Type
Independent four wheel drive system
Tire size
54L x 37.00-25, twelve-ply floatation deep-tread tires
Maximum Speed
4.4 mph
7.1 km/h
Processing Tunnel
Windrow Height
2.4 m
Windrow Width
6.1 m
Tunnel Lining
Fully lined 0.25" (0.6 cm) steel plate
Rubber Skirting Curtains (thickness)
1 cm
Drum Cylinder
0.75 " (1.9 cm) thick, 20 ' (6.1 m) in length and 24 " (61 cm) in diameter
Drum Diameter (including flails)
137.2 cm
Drum Shaft Diameter
15.2 cm
Double Roller Main Drum Bearings
15.2 cm
Number of Flails
Flail Dimensions
0.75" x 4" x 11.625" (1.9 cm x 10.2 cm x 29.5 cm)
Drive System First Reduction
Poly-synchronous chain drive
Drive System Second Reduction
Poly-synchronous chain drive
162.6 cm
38.1 cm
Control Station
Display Type
LCD and LED indicator lights
Murphy Powerview with monitors - engine RPM, coolant temperature, oil pressure, volts, engine hours, fuel level, engine load and engine fault codes
Load Controller
Designed to respond to changes in drum speed, slowing the machine's forward rate of travel if it encounters loads greater than the set point, without input from the operator
Optional Equipment
Two-Wheel Drive System
Maximum speed of 3 mph (4 k/hr)
Hard-surfacing Flails
Stainless Steel Processing Tunnel
Spray Bar Attachment
Cold Weather Engine Package