Dominator® 4857 Disc Ripper

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Maximum Subsoil Fracture

Residue management, soil tilth and level soil surface area are all key factors in yield potential. The Dominator 4857 meets this challenge and outperforms competitive tools. Working widths range from 10’6” to 19’6”.

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The new KUHN Krause Dominator® 4857 boasts product features designed to provide optimal compaction removal and residue handling while reducing maintenance time. The double rank subsoil shanks mounted on narrow 18” spacing deliver maximum subsoil fracture. The new reverse-tandem rear disc conditioner produces consistent soil leveling and residue incorporation for pass-to-pass uniformity, while the soil conditioning reel provides final clod sizing along with seedbed soil firming. Maintenance-free features are incorporated throughout the Dominator 4857, reducing the required daily lubrication service time, placing you in the field sooner and increasing operator productivity. Working widths range from 10’6” to 19’6” and models are available with 7, 9, 11 or 13 shanks.
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Your benefits

Residue Management

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Coulters

The Dominator® 4857 coulter module features ultra-large 25" diameter coulters on 9" spacing for improved residue cutting versus discs. An innovative live hydraulic down pressure system allows the operator to set down pressure to match conditions. With constant down pressure the coulters automatically seek the depth that provides optimal cutting resistance. Coulter gangs are mounted with Rock-Flex™ bearing arms for added protection. Coulters feature PEER® TILLXTREME™ maintenance-free bearings.

Shank Spacing

A split-the-middle shank pattern is achieved with two ranks of shanks on 18" spacing, none closer than 36" on the same beam. This provides maximum soil fracture and non-stop operation in heavy residue.
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Fracture

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Shanks

Choose from all deep-till parabolic shanks, a combination of deep-till and heavy-duty chisel shanks or all heavy-duty chisel shanks, depending on your agronomic needs.

Double K® Points

Double K ripper points double the wear life of prior KUHN Krause Dominator fabricated steel and carbide-capped ripper points. Choose the 7” wing ripper point for optimal fracture or 2.5” straight ripper point for reduced draft.
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Quality Finishing

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Rear Disc Conditioner

The Dominator® 4857 reverse-tandem disc conditioner system is hydraulically controlled to meet varying surface residue and leveling requirements. Front blades are 24" diameter, fluted disc blades on 18" spacing and rear blades are 24" diameter fluted blades on 12" spacing with center-mounted 4-lobe feathering blades to reduce clod size and level soil. A specially designed C-arm now allows for the disc hub to be directly mounted. This new combination of C-arm and hub provides 10% more soil and residue flow through the disc conditioner to improve continuous operation in adverse conditions. Dual hydraulic cylinders control the position of the rear disc conditioner for optimal operating height in relation to the tilled soil surface.

Maintenance-Free Bearing Assembly

Independently mounted blades on a 6-bolt hub containing double angular contact bearing equipped with 11-lip seals offer outstanding reliability and maintenance free operation.
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Heavy-Duty 24/7® Conditioning Reel

Choice of heavy-duty solid round bar or heavy-duty flat bar reel with Peer® TillXtreme™ maintenance-free bearing assemblies mounted on heavy-duty ductile cast bearing arms provides aggressive clod sizing and soil firming. Optional hydraulic lift available.
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Equipment

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Specifications

SPECIFICATIONS
 
Transport Width
Transport Height
Frame Type
Number of Shanks
Shank Spacing
Coulter Blade Spacing
Working Width
Shipping Weight Less Reel Option
Shipping Weight With Reel Option
DOMINATOR 4857-7 DOMINATOR 4857-9 DOMINATOR 4857-11 DOMINATOR 4857-13
13'1" (4 m) 15'11" (4.9 m) 14'1" (4.3 m) 14'2" (4.3 m)
8' (2.4 m) 8' (2.4 m) 11'7" (3.5 m) 12'8" (3.9 m)
Rigid Rigid Folding Folding
7 9 11 13
18" (46 cm) 18" (46 cm) 18" (46 cm) 18" (46 cm)
9" (23 cm) 9" (23 cm) 9" (23 cm) 9" (23 cm)
10'6" (3.2 m) 13'6" (4.1 m) 16'6" (5 m) 19'6" (5.9 m)
12,425 lb (5 635 kg) 15,442 lb (7 004 kg) 20,655 lb (9 368 kg) 22,193 lb (10 066 kg)
13,800 lb (6 259 kg) 16,652 lb (7 553 kg) 22,213 lb (10 075 kg) 23,825 lb (10 806 kg)
STANDARD EQUIPMENT
 
Hitch Type
Tongue Type
Depth Control
Hydraulics
Coulter Blades
Coulter Gangs
Shanks
Points
Main Frame Wheels
Wing Frame Wheels
Hydraulic Controlled Rear Disc Conditioner
Rear Conditioning Reel
Hydraulic Controlled Conditioning Reel
Transport Locks and Safety
DOMINATOR 4857-7 DOMINATOR 4857-9 DOMINATOR 4857-11 DOMINATOR 4857-13
CAT IV Articulating Ball Hitch for 2" Pin CAT IV Articulating Ball Hitch for 2" Pin CAT IV Articulating Ball Hitch for 2" Pin CAT IV Articulating Ball Hitch for 2" Pin
Mechanical Adjustable, Self-Leveling Tongue Mechanical Adjustable, Self-Leveling Tongue Guardian Hitch™ (Cushion Tongue) Guardian Hitch™ (Cushion Tongue)
Single Point Hydraulic Depth Control Single Point Hydraulic Depth Control Single Point Hydraulic Depth Control Single Point Hydraulic Depth Control
Color-Coded Hydraulic Hose Grips, All Hydraulic Hoses Color-Coded Hydraulic Hose Grips, All Hydraulic Hoses Color-Coded Hydraulic Hose Grips, All Hydraulic Hoses Color-Coded Hydraulic Hose Grips, All Hydraulic Hoses
25" x ¼" Smooth 25" x ¼" Smooth 25" x ¼" Smooth 25" x ¼" Smooth
9" Spacing, Adjustable Constant Pressure Hydraulic, Heavy-Duty 6" Bell Diameter Ductile Iron Spools, 1-¾" Diameter Round Alloy Tie Rod with Maintenance-Free PEER® TILLXTREME™ Bearings, C-Type Rock-Flex™ Bearing Arms 1-¼" x 2-½" 9" Spacing, Adjustable Constant Pressure Hydraulic, Heavy-Duty 6" Bell Diameter Ductile Iron Spools, 1-¾" Diameter Round Alloy Tie Rod with Maintenance-Free PEER® TILLXTREME™ Bearings, C-Type Rock-Flex™ Bearing Arms 1-¼" x 2-½" 9" Spacing, Adjustable Constant Pressure Hydraulic, Heavy-Duty 6" Bell Diameter Ductile Iron Spools, 1-¾" Diameter Round Alloy Tie Rod with Maintenance-Free PEER® TILLXTREME™ Bearings, C-Type Rock-Flex™ Bearing Arms 1-¼" x 2-½" 9" Spacing, Adjustable Constant Pressure Hydraulic, Heavy-Duty 6" Bell Diameter Ductile Iron Spools, 1-¾" Diameter Round Alloy Tie Rod with Maintenance-Free PEER® TILLXTREME™ Bearings, C-Type Rock-Flex™ Bearing Arms 1-¼" x 2-½"
Combination (3) Spring Reset Parabolic Sub-Soil Shanks, 3000 lb Point Load, 1-¼" x 4" Shank with Wear Bar, 22" Trip Height, 39" Underframe Clearance, 16" Working Depth and (4) Heavy-Duty Chisel Shanks, 1200lb Point Load, 1-¼" x 3" Shank with Wear Bar, 21" Trip Height, 37" Underframe Clearance, 12" Working Depth Combination (5) Spring Reset Parabolic Sub-Soil Shanks, 3000 lb Point Load, 1-¼" x 4" Shank with Wear Bar, 22" Trip Height, 39" Underframe Clearance, 16" Working Depth and (4) Heavy-Duty Chisel Shanks, 1200lb Point Load, 1-¼" x 3" Shank with Wear Bar, 21" Trip Height, 37" Underframe Clearance, 12" Working Depth Combination (5) Spring Reset Parabolic Sub-Soil Shanks, 3000 lb Point Load, 1-¼" x 4" Shank with Wear Bar, 22" Trip Height, 39" Underframe Clearance, 16" Working Depth and (6) Heavy-Duty Chisel Shanks, 1200lb Point Load, 1-¼" x 3" Shank with Wear Bar, 21" Trip Height, 37" Underframe Clearance, 12" Working Depth Combination (7) Spring Reset Parabolic Sub-Soil Shanks, 3000 lb Point Load, 1-¼" x 4" Shank with Wear Bar, 22" Trip Height, 39" Underframe Clearance, 16" Working Depth and (6) Heavy-Duty Chisel Shanks, 1200lb Point Load, 1-¼" x 3" Shank with Wear Bar, 21" Trip Height, 37" Underframe Clearance, 12" Working Depth
Double K® Cast Chromium Carbide, 7" Wing Ripper Point Double K® Cast Chromium Carbide, 7" Wing Ripper Point Double K® Cast Chromium Carbide, 7" Wing Ripper Point Double K® Cast Chromium Carbide, 7" Wing Ripper Point
(4) 12.5L x 16 14-Ply, Walking Beams, Slip-In Spindles 8-Bolt Heavy-Duty Hubs (4) 12.5L x 16 14-Ply, Walking Beams, Slip-In Spindles 8-Bolt Heavy-Duty Hubs 360/65R17.5 High Floatation Tires, 8-Bolt Heavy-Duty Hubs 360/65R17.5 High Floatation Tires, 8-Bolt Heavy-Duty Hubs
Not Applicable Not Applicable (1) 9.5L x 15" 8-Ply per Wing 6-Bolt Heavy-Duty Bolts (1) 9.5L x 15" 8-Ply per Wing 6-Bolt Heavy-Duty Bolts
Maintenance-Free, Double Angular Contact Bearing, 6-Bolt Hub for Blades Front Beam: 24" x 6 Gauge, Fluted Disc Blades, 18" Blade Spacing Rear Beam: 24 x 6 Gauge, Fluted Disc Blades and Smooth Taper Blades, 12" Blade Spacing Rear Beam: Center-Mounted 4-Lobe Feathering Blades, Reversed Tandem Design Maintenance-Free, Double Angular Contact Bearing, 6-Bolt Hub for Blades Front Beam: 24" x 6 Gauge, Fluted Disc Blades, 18" Blade Spacing Rear Beam: 24 x 6 Gauge, Fluted Disc Blades and Smooth Taper Blades, 12" Blade Spacing Rear Beam: Center-Mounted 4-Lobe Feathering Blades, Reversed Tandem Design Maintenance-Free, Double Angular Contact Bearing, 6-Bolt Hub for Blades Front Beam: 24" x 6 Gauge, Fluted Disc Blades, 18" Blade Spacing Rear Beam: 24 x 6 Gauge, Fluted Disc Blades and Smooth Taper Blades, 12" Blade Spacing Rear Beam: Center-Mounted 4-Lobe Feathering Blades, Reversed Tandem Design Maintenance-Free, Double Angular Contact Bearing, 6-Bolt Hub for Blades Front Beam: 24" x 6 Gauge, Fluted Disc Blades, 18" Blade Spacing Rear Beam: 24 x 6 Gauge, Fluted Disc Blades and Smooth Taper Blades, 12" Blade Spacing Rear Beam: Center-Mounted 4-Lobe Feathering Blades, Reversed Tandem Design
24/7® Soil Conditioning Reel, Heavy-Duty Solid Round Bar Spiral Reels, PEER® TILLXTREME™ Maintenance-Free Bearings 24/7® Soil Conditioning Reel, Heavy-Duty Solid Round Bar Spiral Reels, PEER® TILLXTREME™ Maintenance-Free Bearings 24/7® Soil Conditioning Reel, Heavy-Duty Solid Round Bar Spiral Reels, PEER® TILLXTREME™ Maintenance-Free Bearings 24/7® Soil Conditioning Reel, Heavy-Duty Solid Round Bar Spiral Reels, PEER® TILLXTREME™ Maintenance-Free Bearings
(1) 2" x 3.25" Cylinder and Hoses per Carrier Arm (1) 2" x 3.25" Cylinder and Hoses per Carrier Arm (1) 2" x 3.25" Cylinder and Hoses per Carrier Arm (1) 2" x 3.25" Cylinder and Hoses per Carrier Arm
Hydraulic Valves, Transport and Wing Fold, Slow Moving Vehicle Sign, High-Visibility LED Lighting Hydraulic Valves, Transport and Wing Fold, Slow Moving Vehicle Sign, High-Visibility LED Lighting Hydraulic Valves, Transport and Wing Fold, Slow Moving Vehicle Sign, High-Visibility LED Lighting Hydraulic Valves, Transport and Wing Fold, Slow Moving Vehicle Sign, High-Visibility LED Lighting
OPTIONAL EQUIPMENT
 
Hitch Type
Tongue Type
Shanks
Shanks
Points
Tires
Rear Conditioning Reel
Rear Conditioning Reel
Hydraulic Controlled Conditioning Reel
DOMINATOR 4857-7 DOMINATOR 4857-9 DOMINATOR 4857-11 DOMINATOR 4857-13
CAT III Articulating Ball Hitch for 1-1/2" Pin CAT III Articulating Ball Hitch for 1-1/2" Pin CAT V Articulating Ball Hitch for 2-3/4" Pin CAT V Articulating Ball Hitch for 2-3/4" Pin
Guardian Hitch™ (Cushion Tongue) Guardian Hitch™ (Cushion Tongue) Mechanical Adjustable, Self-Leveling Tongue Mechanical Adjustable, Self-Leveling Tongue
All Spring Reset Sub-Soil Shanks 3,000 lb Point Load, 1-¼" x 4" Shank Size with Wear Bar, 21" Trip Height, 39" Underframe Clearance 16" Working Depth All Spring Reset Sub-Soil Shanks 3,000 lb Point Load, 1-¼" x 4" Shank Size with Wear Bar, 21" Trip Height, 39" Underframe Clearance 16" Working Depth All Spring Reset Sub-Soil Shanks 3,000 lb Point Load, 1-¼" x 4" Shank Size with Wear Bar, 21" Trip Height, 39" Underframe Clearance 16" Working Depth All Spring Reset Sub-Soil Shanks 3,000 lb Point Load, 1-¼" x 4" Shank Size with Wear Bar, 21" Trip Height, 39" Underframe Clearance 16" Working Depth
All Heavy-Duty Spring Reset Chisel Shanks - 1,200 lb Point Load, 1-¼" x 3" Shank Size with Wear Bar, 20" Trip Height, 39" Underframe Clearance 12" Working Depth All Heavy-Duty Spring Reset Chisel Shanks - 1,200 lb Point Load, 1-¼" x 3" Shank Size with Wear Bar, 20" Trip Height, 39" Underframe Clearance 12" Working Depth All Heavy-Duty Spring Reset Chisel Shanks - 1,200 lb Point Load, 1-¼" x 3" Shank Size with Wear Bar, 20" Trip Height, 39" Underframe Clearance 12" Working Depth All Heavy-Duty Spring Reset Chisel Shanks - 1,200 lb Point Load, 1-¼" x 3" Shank Size with Wear Bar, 20" Trip Height, 39" Underframe Clearance 12" Working Depth
Double K® 2-½" Cast Chromium Carbide, Straight Ripper Point Double K® 2-½" Cast Chromium Carbide, Straight Ripper Point Double K® 2-½" Cast Chromium Carbide, Straight Ripper Point Double K® 2-½" Cast Chromium Carbide, Straight Ripper Point
360/65R17.5 High Floatation Tires, 8-Bolt Heavy-Duty Hubs 360/65R17.5 High Floatation Tires, 8-Bolt Heavy-Duty Hubs Not Applicable Not Applicable
24/7® Soil Conditioning with Float Position, Heavy-Duty Flat Bar Spiral Reels, PEER® TILLXTREME™ Maintenance-Free Bearings 24/7® Soil Conditioning with Float Position, Heavy-Duty Flat Bar Spiral Reels, PEER® TILLXTREME™ Maintenance-Free Bearings 24/7® Soil Conditioning with Float Position, Heavy-Duty Flat Bar Spiral Reels, PEER® TILLXTREME™ Maintenance-Free Bearings 24/7® Soil Conditioning with Float Position, Heavy-Duty Flat Bar Spiral Reels, PEER® TILLXTREME™ Maintenance-Free Bearings
None None None None
None None None None
OPERATING INFORMATION
 
Recommended Tractor Power
Working Depth Range
Recommended Operating Speed
DOMINATOR 4857-7 DOMINATOR 4857-9 DOMINATOR 4857-11 DOMINATOR 4857-13
39 - 47 ENG HP/shank (29 - 35 kW/shank) 39 - 47 ENG HP/shank (29 - 35 kW/shank) 39 - 47 ENG HP/shank (29 - 35 kW/shank) 39 - 47 ENG HP/shank (29 - 35 kW/shank)
8" - 16" (20.3 - 40.6 cm) 8" - 16" (20.3 - 40.6 cm) 8" - 16" (20.3 - 40.6 cm) 8" - 16" (20.3 - 40.6 cm)
4 - 7 mph (6 - 11 km/h) 4 - 7 mph (6 - 11 km/h) 4 - 7 mph (6 - 11 km/h) 4 - 7 mph (6 - 11 km/h)

Media

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