6830 Chain Flail Debarker

6830 Chain Flail Debarker


The Peterson 6830 Chain Flail Debarker is a dedicated chain flail debarking machine designed for long-stem chipping operations that require low bark or ash content. Designed for multiple stems or trees up to 28 inches (71 cm) in diameter, the 6830 quickly and effectively debarks even the hardest feedstock.

Powered by a fully enclosed Caterpillar C18 engine rated at 765 hp (570 kW), the 6830 Chain Flail Debarker has the power to drive the 3 flail drums (a 4th flail is also available as an option). The two lower flails are fixed in location, and the upper flails float to match log diameter. The 10-link flail chain is easily replaced through access doors.

The 6830 Chain Flail Debarker is available with either a Peterson 170 or 220 log loader. The large 60 inch (152 cm) wide, by 30 inch (76 cm) tall feed opening makes loading the 6830 easy.

Two floating feed heads, and five fixed lower feed rolls control the log through the debarking chamber, and two rolls assist the stems to exit the machine.

The 6830 Chain Flail Debarker is controlled by an IQAN operating system, which provides the operator with all critical engine and performance parameters. When paired with the Peterson 7900EL, the operator can control both machines.

Since 1981, Peterson has specialized in the developing of delivery and processing equipment that turns low-grade organic materials into high value products.

6830 Chain Flail Debarker


Easy-to-Service Chain Flails and Replaceable Wear Liners

Upper and lower chain flails strip bark and limbs from the stems, replaceable UHMW wear liners protect the flail housing sidewalls.

High Capacity Bark Pusher

The Bark Pusher has a 12’x24” wide opening with a 10 second stroke moves the bark and limbs efficiently from the debarking chamber.

Powerful Gear Boxes

The 6830 utilizes high torque gearboxes to drive the upper and lower chain flails—providing 30% more torque than the previous model for efficient bark and branch removal.

A High Visibility, Weatherized Cab Meets OSHA Standards

Ergonomic joystick controls provide precise control of the two-section knuckle-boom log loader.

6830 Chain Flail Debarker


General Dimensions

Operation and Travel Length
45'-3" (1379 cm)
Operational Width
15'-1" (459 cm)
Travel Width
10'-6" (320 cm)
Travel Height
13'-9" (419 cm)
Fifth Wheel Height
49 1/2" (126 cm)
Ground Clearance
10" (25 cm)
Axle Spacing
60" (152 cm)
Wheel Base (3 axle)
36'-8" (1118 cm)

Weight (with 4 flails)

Total Weight
108,650 lbs (49 283 kg)
Fifth Wheel Weight
47,750 lbs (21 659 kg)
Tridem Axle Weight
59,850 lbs (27 148 kg)


One Upper Flail
Two Lower Fixed Flails
Flail Drum Diameter
12" (30 cm)
Flail Rods/drum
5⁄8" (16 mm) x 10 links x 90
Drive Type
100 to 550 rpm
End Discharge Bark Pusher
12 x 24" (366 x 61 cm)


Cat C18 (Tier IV) 765 HP (570 kW)
Fuel Tank Capacity
330 gal (1249 L)
Hydraulic Tank Capacity
365 gal (1382 L)
Auto Reversing Fans

Log Loader – 170

Lift Capacity
11,851 lbs (5376 kg) at 15' (457 cm)
Two-section Knuckle Boom
25'-3" reach (770 cm)
Single Swing Motor
42" (107 cm) Continuous Rotation Grapple with Heel Rack
Electronic Joystick Controls, SAE
Enclosed Weatherized Operator's Cab
Pressurized Cab with AC and Heat

Optional Log Loader – 220

Lift Capacity
14,705 lbs (6671 kg) at 15' (457 cm)
Two-section Knuckle Boom
27' reach (823 cm)
Dual Swing Motors (closed loop)

Feed System

Maximum Log Diameter
28” (71 cm)
Feed Opening
60" wide x 30" tall (152 x 76 cm)
Direct Drive Feed Rolls with Comb
Smooth Plate Discharge with Lower Feed Roll
Feed Height
55 1/2" (141 cm)
Discharge Height
55 1/2" (141 cm)
up to 210 ft/min (64 m/min)
Two Direct Drive Lower Fixed Roll Case Rollers


Display In Cab

Optional Equipment

Fourth Upper Floating Flail (parallel lift)
Eucalyptus Eucalyptus Flail Drums
Drag Chain Discharge
Cat C18 (Tier II) 765 HP (570 kW) Engine, Electric or Diesel Fired
Cold Weather Kits
Fire Suppression System
Manual or Automatic
Night Operation Lights
Export Fifth Wheel Pin
Black Urethane Flail Liners
Four Direct Drive Lower Fixed Roll Case Rollers

Specifications subject to change without notice


6830 Chain Flail Debarker


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