Dominator® 4857 Disc Ripper

Maximum Productivity

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.

YOUR BENEFITS

Residue Management

Coulters

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.

Fracture

Shank

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.

Rear Disc Conditioner

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.

Heavy-Duty 24/7® Conditioning Reel

Choice of heavy-duty 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.

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.

EQUIPMENT

Smart Soil Technology™

Available as an option on all Dominator 4857 / 4861 models, this ISOBUS control system (SST) delivers in-cab electronic control and convenience for operation and adjustment of machine depth, coulter pressure, disc conditioner depth, and conditioning reel from any compatible ISOBUS display. ISOBUS equipment certified by the AEF is included in the online database. The customer can verify compatibility of ISOBUS functions between the machine and the terminal to be used. Learn more here

Guardian Hitch™

This exclusive option guards against stress on the tractor drawbar and implement frame. Lateral drawbar forces are transferred through the hitch pivot where shock load from steering input is dampened by urethane blocks. Choose from the articulating ball Cat III, IV or V cast hitch, depending on model.

Single-Point Depth Control – Standard

Shank depth is controlled conveniently with the crank-adjustable depth stop located at the front of the machine. View working depth on the easy-to-read scale.

Heavy-Duty Walking Beams – Standard

Standard on the center section of all Dominator models, heavy-duty 8-bolt hubs with slip-in wheel spindles secured by a single bolt ensure durability and easy maintenance.

Tractor Interface Center

The tractor interface center prevents hydraulic hoses from binding in turns and adds operator convenience. Includes hose routing chart, color coded hose grips, storage for light hookup and owner’s manual.

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
Smart Soil Technology
ISOBUS Terminal
ISOBUS Tractor Harness (ITH)
GPS Speed Sensor
Third Party GPS Harness

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
In Cab ISOBUS Control of Depth, Coulter Pressure, Disc Conditioner Depth and Conditioner Reel List. Machines Equipped with Smart Soil Technology® Require Total 2 Tractor SCVs. Smart Soil Technology® Requires Max 4 GPM Oil Flow from Tractor. Requires 1 Free Flow Return to Tractor Reservoir (I.E. Motor Return).	In Cab ISOBUS Control of Depth, Coulter Pressure, Disc Conditioner Depth and Conditioner Reel List. Machines Equipped with Smart Soil Technology® Require Total 2 Tractor SCVs. Smart Soil Technology® Requires Max 4 GPM Oil Flow from Tractor. Requires 1 Free Flow Return to Tractor Reservoir (I.E. Motor Return).	In Cab ISOBUS Control of Depth, Coulter Pressure, Disc Conditioner Depth and Conditioner Reel List. Machines Equipped with Smart Soil Technology® Require Total 2 Tractor SCVs. Smart Soil Technology® Requires Max 4 GPM Oil Flow from Tractor. Requires 1 Free Flow Return to Tractor Reservoir (I.E. Motor Return).	In Cab ISOBUS Control of Depth, Coulter Pressure, Disc Conditioner Depth and Conditioner Reel List. Machines Equipped with Smart Soil Technology® Require Total 2 Tractor SCVs. Smart Soil Technology® Requires Max 4 GPM Oil Flow from Tractor. Requires 1 Free Flow Return to Tractor Reservoir (I.E. Motor Return).
CCI 800 or CCI 1200 Available as Option for Machines Equipped with Smart Soil Technology®. Only Required if Customer Does Not Have Own Compatible ISOBUS Display, or Where Customer Wishes to Have A Second ISOBUS Display In Cab.	CCI 800 or CCI 1200 Available as Option for Machines Equipped with Smart Soil Technology®. Only Required if Customer Does Not Have Own Compatible ISOBUS Display, or Where Customer Wishes to Have A Second ISOBUS Display In Cab.	CCI 800 or CCI 1200 Available as Option for Machines Equipped with Smart Soil Technology®. Only Required if Customer Does Not Have Own Compatible ISOBUS Display, or Where Customer Wishes to Have A Second ISOBUS Display In Cab.	CCI 800 or CCI 1200 Available as Option for Machines Equipped with Smart Soil Technology®. Only Required if Customer Does Not Have Own Compatible ISOBUS Display, or Where Customer Wishes to Have A Second ISOBUS Display In Cab.
ISOBUS Tractor Harness Available as Option for Machines Equipped with Smart Soil Technology®. Only Required for Use with Non-ISOBUS Tractors.	ISOBUS Tractor Harness Available as Option for Machines Equipped with Smart Soil Technology®. Only Required for Use with Non-ISOBUS Tractors.	ISOBUS Tractor Harness Available as Option for Machines Equipped with Smart Soil Technology®. Only Required for Use with Non-ISOBUS Tractors.	ISOBUS Tractor Harness Available as Option for Machines Equipped with Smart Soil Technology®. Only Required for Use with Non-ISOBUS Tractors.
GPS Speed Sensor Available as Option When ITH Harness is Selected. Only Required for Non-ISOBUS Tractors Where No Other ISOBUS Compatible Speed Source is Available.	GPS Speed Sensor Available as Option When ITH Harness is Selected. Only Required for Non-ISOBUS Tractors Where No Other ISOBUS Compatible Speed Source is Available.	GPS Speed Sensor Available as Option When ITH Harness is Selected. Only Required for Non-ISOBUS Tractors Where No Other ISOBUS Compatible Speed Source is Available.	GPS Speed Sensor Available as Option When ITH Harness is Selected. Only Required for Non-ISOBUS Tractors Where No Other ISOBUS Compatible Speed Source is Available.
GPS Speed Sensor Available as Option When ITH Harness is Selected. Only Required for Non-ISOBUS Tractors Where A Third Party GPS Unit Needs to Be Connected to the KUHN ITH Harness. Note: Additional Cables May Be Required From the GPS Manufacturer.	GPS Speed Sensor Available as Option When ITH Harness is Selected. Only Required for Non-ISOBUS Tractors Where A Third Party GPS Unit Needs to Be Connected to the KUHN ITH Harness. Note: Additional Cables May Be Required From the GPS Manufacturer.	GPS Speed Sensor Available as Option When ITH Harness is Selected. Only Required for Non-ISOBUS Tractors Where A Third Party GPS Unit Needs to Be Connected to the KUHN ITH Harness. Note: Additional Cables May Be Required From the GPS Manufacturer.	GPS Speed Sensor Available as Option When ITH Harness is Selected. Only Required for Non-ISOBUS Tractors Where A Third Party GPS Unit Needs to Be Connected to the KUHN ITH Harness. Note: Additional Cables May Be Required From the GPS Manufacturer.

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)

Product specifications are based on published information at the time of publication.
Product specifications are subject to change without further notice.
Contact your local KUHN Dealer for more information.

Download the Literature

MEDIA

Contact Us

Contact the Red Deer Hay Center

Phone: 403 340 1000
Hours or Operation
Monday to Friday: 8:30 PM to 5:00 PM
Saturday: 8:30 AM to 12: PM
Sunday: Closed
eMail : ed@haycenter.com

Central Alberta Hay Center