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Zone-Builder® Subsoiler - Unverferth Primary Tillage
"Give Yourself a Raise!"
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Product Overview
Like roots in a too-small container, your performance would be less than its best if you had to live and work each day in such a cramped spaces. Yields suffer when compaction keeps roots from growing freely into the subsoil for optimum nutrient and water uptake. The Zone-Builder® subsoiler from Unverferth lets plants stretch their legs (and their roots) by opening passageways through the hardpan with minimal surface disruption. Long-term university research confirms deep-tilling with tools such as the Zone-Builder implement raise yields and income.
Check out the Zone-Builder Subsoiler in a 360° view.
Feature Overview
- Three different Zone-Builder subsoiler models to best suit your soil conditions:
- Model 130 with auto-reset shank that trip rearward and upward from a single pivot point for trouble-free use in rocky, hard soils. Trip pressure of 6,000 lbs. for consistent working depth
- Model 120 with spring-cushioned reset shank with 20" of vertical travel and 5,040 lbs. of point load
- Model 110 with shear-bolt protected shank with 7,500 lbs. of shear pressure for use in rock-free soils
Specifications Overview
| Model Size | Approximate Weight | Transport Width | |||
| Model 130 Auto-Reset | Model 120 Spring-Cushioned Reset | Model 110 Shear-Bolt Protected | Stabilizer Wheels Outboard | Stabilizer Wheels Inboard | |
| 2-shank | 1470 | 2058 | 1400 | - | 8' 2" |
| 3-shank | 2193 | 2781 | 2107 | - | 8' 2" |
| 4-shank* | 2616 | 3400 | 2488 | 11' 4" | 8' 4 " |
Accessories Overview
- Strip-Builder Shank attachment with available Rolling Harrow Basket
- Width, angle and depth adjustable to create a mound of tilled soil for faster warmup
- Coulter blades ride on heavy-duty 6-bolt hub with recessed endcaps for greater longevity
- Optional 15" Rolling Harrow® basket with serrated blades helps break up clods and levels for a receptive seedbed
Product Features
- Three different Zone-Builder subsoiler models to best suit your soil conditions:
- Model 130 with auto-reset shank that trip rearward and upward from a single pivot point for trouble-free use in rocky, hard soils. Trip pressure of 6,000 lbs. for consistent working depth
- Model 120 with spring-cushioned reset shank with 20" of vertical travel and 5,040 lbs. of point load
- Model 110 with shear-bolt protected shank with 7,500 lbs. of shear pressure for use in rock-free soils
- Straight-leg shank design creates a passageway that allows plant roots, soil moisture and nutrients to move freely into the subsoil with minimal surface soil disturbance
- Slices up to 20" deep to alleviate the deepest compaction
- 3/4" thick high-stress, forged-alloy shanks provide maximum strength and minimal disturbance
- 1-3/4" wide replaceable points dig through the hardpan
- The triangular-shaped, forged invertible wearbars add to shank durability and subsurface soil fracturing
- Heavy-duty, double-frame all-welded construction with 6" x 6" rear frame
- 38" underframe clearance provides ideal residue flow
- Standard stabilizer wheels with stubble-resistant tires assure a consistent working depth
- Front-mounted swivel coulters with 1,500 lbs. of downpressure easily cut through the heaviest residue and features heavy-duty 6-bolt hubs wtih recessed endcaps and ride on a lip for increased durability
- Models available with 2-16 shanks with a powder-coat finish in choice of red or green
Product Specifications
| Model Size | Approximate Weight (lbs.) | Transport Width | |||
| Model 130 Auto-Reset | Model 120 Spring-Cushioned Reset | Model 110 Shear-Bolt Protected | Stabilizer Wheels Outboard | Stabilizer Wheels Inboard | |
|
Note: For rigid models with vertical row markers, add 1' 7" to transport width with stablizer wheels outboard. Transport width of 8-shank is 21'4" when equipped with bi-fold markers. * Stabilizer wheels can be mounted on the ends of the mainframe (outboard) or onto the rear mainframe between the shanks (inboard). Due to continuing improvements in the design and manufacture of Unverferth products, all specifications contained herein are subject to change without notice. |
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| 2-shank | 1470 | 2058 | 1400 | - | 8' 2" |
| 3-shank | 2193 | 2781 | 2107 | - | 8' 2" |
| 4-shank* | 2616 | 3400 | 2488 | 11' 4" | 8' 4 " |
| 5-shank* | 3043 | 4023 | 2883 | 13' 10" | 10' 11" |
| 6-shank* | 3581 | 4757 | 3389 | 16' 6" | 13' 6 " |
| 7-shank* | 4063 | 5435 | 3838 | 19' | 16' |
| 7-shank folding | 4863 | 6235 | 4638 | 16' 5" | - |
| 8-shank* | 4601 | 6169 | 4345 | 21' 6"' | 18' 6" |
| 8-shank folding | 5400 | 6968 | 5100 | 15' 6" | - |
| 9-shank folding | 5900 | 7664 | 5600 | 16' 5" | - |
| 10-shank folding | 6450 | 8410 | 6100 | 15' 6" | - |
| 12-shank folding | 7650 | 10,002 | 7200 | 15' 6" | - |
| 16-shank folding | 10,610 | - | 10,360 | 19' 8" | - |
Product Accessories
- Strip-Builder Shank attachment with available Rolling Harrow Basket
- Width, angle and depth adjustable to create a mound of tilled soil for faster warmup
- Coulter blades ride on heavy-duty 6-bolt hub with recessed endcaps for greater longevity
- Optional 15" Rolling Harrow® basket with serrated blades helps break up clods and levels for a receptive seedbed
- Zone-Firmer press wheels feature easily adjusted downpressure from 0-360 pound to create a more level soil surface
- Full-width Rolling Harrow soil conditioner helps to chop and distribute residue
- Full-Width 13" Spike Drum leveler for models 110 and 130 available to fit 4-8 shank models features 3" spiraled drive lugs for added leveling and residue incorporation
- Double toolbar mounted coulter attachment provides added residue sizing and incorporation in betwwen the shanks for cutting every 10" across the front of the machine. Available for 3 through 9 shank models
- For pull-type operation, choose from the model 500 3-pt. implement caddy for up to 9-row models, or a pull-type conversion kit for larger units
- Shank Customizers
- Flat, chrome-capped points for rocky soils
- Shatter wings can be mounted at either of two locations for increased soil and hardpan fracturing. Wing slope can be set from 0 degrees to 14 degrees
- 1/4-inch thick, bolt-on shank protectors for use in abrasive soils
- Fertilizer injectors for NH3 and liquid fertilizer easily attach to rear of shank and include shank protection
- Dry fertilizer tube attachments also feature shank protectors and are left or right hand mounted
- Row markers feature notched blades that leave a highly visible mark to maintain accurate row spacing
- Lighting package for safer road transport comes complete with lights and reflective striping to meet current standards
- Shank stagger kit for increasing residue flow and reducing horsepower requirements
Product Video
Zone-Builder Subsoiler Demo
Full product demonstration for the Unverferth Zone-Builder® subsoiler. Includes cost saving benefits, detailed animation of the blade underground, 3D model rotation, and in-field shots.
Download Zone-Builder Literature 
Download Model 500 CaddyLiterature