FARM EQUIPMENT | Premium Farming Equipment

SPRINGBOK RANGE - SPR-14-/16-/18-DH

MOUNTED OFFSET

DISC HARROW

The Springbok Offset Disc Harrow is the powerhouse your farm deserves, merging heavy-duty industrial engineering with refined agricultural physics to ensure every single pass counts. While others rely on standard materials, we utilise high-tensile EN8 solid steel axles and reinforced square tubing to deliver a level of durability that isn't just "sturdy" - it is Springbok tough. This "Clean-Cut" advantage is driven by aggressive notched front discs that bite into the hardest sun-baked crust, paired with precision-aligned plain rear discs that leave behind a perfectly leveled, seed-ready finish. By engineering for optimal weight distribution, the Springbok Range guarantees deep penetration 140–160 mm without putting unnecessary strain on your tractor, effectively saving you fuel and time.

Disc Harrow

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CORE FUNCTION

PRIMARY & SECONDARY TILLAGE:

It serves as a dual-purpose tool, capable of performing primary tillage (first-time land preparation) in softer soils and secondary tillage (refining soil after initial plowing) to break down large clods into a fine tilth.

RESIDUE & WEED MANAGEMENT:

The aggressive notched front discs are specifically designed to slice through thick crop residue, stalks and weeds, shredding and burying them into the soil to improve organic matter and fertility.

SOIL AERATION & LEVELING:

By lifting and turning the soil, it enhances aeration and moisture retention. The plain rear discs then smooth and level the surface to create a uniform seedbed ready for planting.

AGGRESSIVE PENETRATION:

The offset configuration (where the disc gangs are angled relative to the direction of travel) ensures that the soil is cut and turned repeatedly in a single pass, providing a more aggressive tilling effect than standard parallel harrows.

"Don't Just Scratch the Surface. Slice Through It."

To achieve that 140–160mm depth without overloading your tractor, pay close attention to your gang angle adjustment. In harder, sun-baked crusts, increasing the angle of the front notched discs provides a more aggressive 'bite,' but requires more traction. For secondary tillage or lighter soils, reducing the angle allows you to increase your ground speed and improve fuel economy while the precision-aligned rear discs ensure a level finish. The goal is to let the optimal weight distribution of the Springbok frame do the work, not your throttle."

OPERATIONAL CONVENIENCE & EXCELLENCE

SUPERIOR MANEUVERABILITY:

Being three-point mounted, these harrows offer better control and easier transport between fields compared to trailed models.

OPTIMAL SOIL FINISHING:

The combination of notched front discs for aggressive cutting and plain rear discs for smoothing ensures a refined, plantable seedbed in fewer passes.

ADJUSTABLE PERFORMANCE:

The equipment allows for flexible depth and gang angle adjustments, enabling you to customise the tillage intensity to suit varying soil conditions and crop requirements.

DURABILITY AND LOW MAINTENANCE:

Constructed with heavy-duty steel and 30 mm solid axles, the range is built for longevity with minimal downtime for servicing.

KEY ENGINEERING FEATURES AND BENEFITS

HYBRID DISC CONFIGURATION:

Features notched front discs for aggressive cutting and chopping of thick crop residue, paired with plain rear discs that pulverise and level the soil for a refined seedbed.

SQUARE TUBING FRAME:

Built with a 100 x 100 x 4 mm top frame, providing the necessary weight for consistent soil penetration (140–160 mm depth) and the structural integrity to resist warping under high stress.

HIGH-TENSILE SOLID AXLES:

Uses 30 mm SOLID Round Bar EN8.8 gang bolts. This high-grade steel ensures the discs stay aligned and prevents the axles from bending or snapping when hitting hidden rocks or hard-packed clay.

3-POINT CAT-2 MOUNTING:

The mounted design offers superior manoeuvrability in smaller or awkwardly shaped fields and allows for high-speed road transport between farms without needing a separate trailer.

ROBUST BEARING SUPPORT:

Equipped with 152 x 76 x 6 mm U-Channel bearing hangers and four heavy-duty hubs, ensuring the rotating assembly can handle high radial loads while remaining easy to grease and service.

WIDE DISC SPACING (225 MM):

Precisely engineered spacing prevents "clogging" or "balling up" in wet soil or high-trash environments, allowing for continuous operation without stopping to clear the discs.

10MM REINFORCED MOUNTING PLATES:

Extra-thick mounting plates ensure the gangs stay at their optimal cutting angle, preventing "drifting" and ensuring a uniform tillage width (up to 2100 mm) across every pass.

TECHNICAL SPECIFICATIONS

SAFETY AND OPERATOR PROTECTION GUIDE

Operating a mounted offset disc harrow involves rotating blades, heavy steel frames, and mechanical pinch points. To prevent serious injury or equipment damage, all operators must adhere to the following protocols:

1. PERSONAL PROTECTIVE EQUIPMENT (PPE)

Footwear: Always wear steel-toed boots to protect against heavy metal components during hitching and the sharp edges of the notched discs.
Hand Protection: Use heavy-duty work gloves when handling hitch pins or adjusting gang angles to prevent pinches, cuts and abrasions from the steel frame and disc blades.
Clothing: Avoid loose-fitting clothing or dangling drawstrings that could become entangled in the tractor’s 3-point linkage or the rotating disc gangs.

2. PRE-OPERATION SAFETY CHECKS

Disc & Bolt Condition: Inspect all notched and plain discs for cracks or excessive wear. Ensure gang bolts (axles) are tightened to the correct torque; a loose axle can cause the entire gang to fail.
Bearing Hubs: Check that all four bearing hubs are properly greased and the mounting U-channels are secure. Seized bearings can cause excessive heat and equipment damage.
Structural Integrity: Examine the 100 x 100 mm top frame and 10 mm mounting plates for stress cracks or bent steel, particularly at the weld points and hitch pins.

3. SAFE HITCHING & UNHITCHING

Communication: Never allow a helper to stand between the tractor and the disc harrow while backing up. Use clear hand signals and only approach the implement once the tractor is in park and the engine is off.
Level Ground: Always unhitch on level, firm ground. Because the equipment is top-heavy, unhitching on a slope or soft soil can cause the harrow to tip or shift unexpectedly.

4. OPERATIONAL SAFETY (IN THE FIELD)

Speed Control: Operate at a steady, recommended speed. Hitting a hidden "solid" object (like a large rock or stump) can cause the discs to shatter or the tractor to kick back violently.
Hydraulic Safety: Always lower the disc harrow to the ground before leaving the tractor seat. A raised implement held only by hydraulic pressure can drop unexpectedly if a hose fails or a lever is bumped.
Bystander Safety: Ensure a wide safety perimeter. When the gangs are offset, they can extend beyond the tractor's width and the rotating discs can throw debris (stones or stalks) at high velocities.
Counter-Weighting: Ensure the front of the tractor is properly weighted. The heavy SPR-series harrows (especially the 18-disc model) can lighten the front end, significantly reducing steering control.

5. MAINTENANCE & CLEANING SAFETY

Pinch Points: Be extremely cautious when adjusting the gang angles or disc spacing. The heavy gangs can shift or swing rapidly once adjustment pins are removed.
Engine Off: Always shut down the tractor and remove the key before performing maintenance, such as clearing "balled up" mud from the discs or tightening bearing hangers.
Blocked Raised Position: Never crawl under the harrow while it is supported only by the tractor’s lift arms. If you must work underneath it for cleaning or repair, the frame must be supported by certified jack stands or heavy timber blocking.

FIELD SAFETY GUIDE:

MOUNTED OFFSET DISC HARROW

To achieve aggressive soil penetration and a seed-ready finish while protecting your equipment, follow these field procedures:

A. ENGAGING THE SYSTEM

Startup Height: Always ensure the harrow is raised completely via the tractor’s three-point linkage before moving. The discs should never touch the ground while the tractor is stationary or in transport.
Gradual Lowering: Lower the unit into the soil only once the tractor is in forward motion. Avoid dropping the harrow into "hard-pan" soils, as the sudden impact can stress the 100 x 100mm top frame.
Offset Adjustment: Before starting, verify the gang angles are set correctly via the 10mm mounting plates. A steeper angle provides more aggressive cutting for primary tillage.

B. FIELD PERFORMANCE & SPEED

Speed Control: Maintain a steady forward speed. This ensures the notched front discs effectively slice through residue and the plain rear discs provide a leveled finish.
Penetration Depth: The Springbok range is engineered for a depth of 140mm–160mm. If the tractor engine strains or wheels slip, slightly raise the hitch to reduce drag, especially when using models requiring up to 70 HP.
Residue Management: In thick maize or sunflower residue, the 225mm disc spacing is designed to prevent "balling up". Ensure you maintain enough speed to allow the discs to throw and incorporate material.

C. TERRAIN & OBSTACLE MANAGEMENT

Obstacle Protocol: If the discs strike a "solid" hidden object (large rock or stump), stop immediately. High-speed impacts can shatter the 560mm discs or bend the hitch arms.
High-Tensile Protection: While the 30mm EN8 solid axles are designed to absorb high-impact shocks, always inspect them for "wobble" after hitting a significant obstruction.
Levelling the Field: To prevent "drifting", ensure the tractor’s top link is adjusted so both the front notched gang and rear plain gang are level and biting at the same depth.

D. TURNING & MANEUVERING

Headland Turns: Always lift the entire unit off the ground before making turns. Turning while the discs are engaged causes massive lateral stress on the U-Channel bearing hangers and can lead to structural failure.
Safety Perimeter: Be aware that the offset gangs can extend beyond the tractor’s width. Ensure a wide safety zone to prevent hitting fences or bystanders with the sharp notched discs.
Counter-Weighting: Because these harrows are heavy (especially the 18-disc model), ensure the front of the tractor is properly weighted to maintain steering control and prevent the front wheels from lifting during transport.

SERVICE AND MAINTENANCE CARE GUIDE

Regular maintenance of your SPR Series Mounted Offset Disc Harrow is essential for extending the life of your high-tensile components. Follow this schedule to maintain peak performance in tough South African terrains:

DAILY: (BEFORE EVERY USE)

Fastener Security: Check all bolts on the disc gangs and bearing hangers. The vibration from breaking hard soil frequently loosens the nuts on the 30 mm solid axles.
Disc Blade Inspection: Check both the notched front discs and plain rear discs for cracks, chips or severe dulling. Damaged discs can cause uneven tillage and put undue stress on the frame.
Bearing Hub Check: Hand-check the bearing hubs for excessive play. If a hub feels loose, the bearings may need tightening or replacement before the gang is damaged.
Hitch Pins: Verify that all Category 2 three-point hitch pins and linchpins are in place and locked securely to the tractor’s lift arms.
Visual Frame Inspection: Walk around the 100 x 100 mm top frame to check for any fresh stress cracks in the welds, especially around the 10 mm mounting plates.

WEEKLY: (EVERY 40-50 WORKING HOURS)

Bearing Lubrication: Apply 2–3 pumps of high-quality lithium-based grease to each of the four bearing hubs. Do not over-grease, as this can blow out the seals and allow dust to enter.
Axle Torque: Use a heavy-duty wrench to verify the tightness of the large nuts at the ends of the 30 mm EN8 solid round bars. A loose axle allows discs to "wobble," which quickly destroys the internal spacers.
Trash Removal: Clear any wrapped wire, long weeds, or crop residue from the axles and bearing hangers. Trapped debris can friction-burn bearing seals or cause the gang to seize.
Wash Down: Remove heavy mud and clay buildup from the discs and frame. Trapped mud holds moisture against the steel, accelerating rust and making the equipment unnecessarily heavy for the tractor.

MONTHLY: (DEEP INSPECTION)

Disc Diameter Measurement: Measure the 560 mm discs. If they have worn down by more than 50 mm (2 inches), soil penetration and "trash-cutting" efficiency will be significantly reduced.
Scraper Adjustment: (If equipped) Check the gap between the scrapers and the discs. Adjust them so they are close enough to peel off mud but not touching the disc face.
Paint Touch-up: Use a rust-preventative red paint to touch up the frame and tubing where soil abrasion has stripped the coating to prevent deep-pitting corrosion.
Bearing Hanger Wear: Inspect the 152 x 76 x 6 mm U-Channel hangers for any signs of "egging" or thinning where they meet the gang bolts.

END OF SEASON STORAGE:

Anti-Rust Coating: Apply a thin layer of grease or a specialised rust inhibitor to the faces of all discs. This prevents "flash rust" and ensures the soil "scours" (slides off) easily at the start of the next season.
Linkage Protection: Coat the three-point attachment pins and the threads of any adjustment bolts with a light film of oil or anti-seize.
Elevated Storage: Store the harrow on a concrete slab or wooden blocks. Keeping the discs off the bare ground prevents them from sinking into the mud and rusting, which can lead to "flat spots" during the first few hours of use next year.

12-MONTH LIMITED WARRANTY

1. COVERAGE:

This warranty covers the original purchaser against defects in material and workmanship for a period of twelve (12) months from the date of purchase.

2. SCOPE OF WARRANTY:

Structural Frame: Coverage includes the 100 x 100 mm top frame, the 76 x 76 mm gang tubing and the CAT-2 A-frame hitch assembly.
Mechanical Components: Coverage includes the 152 x 76 x 6 mm U-Channel bearing hangers, the four heavy-duty bearing hubs and the 10 mm mounting plates.
Axle Assembly: Coverage includes the 30 mm SOLID Round Bar EN8 gang bolts against metallurgical defects or shearing under rated loads.

3. EXCLUSIONS: (WHAT IS NOT COVERED)

Wear Parts: Items naturally consumed during operation, specifically the Notched and Plain Disc Blades, spacers/spools and scrapers, are not covered unless a manufacturing defect is proven prior to first use.
Misuse & Neglect: Damage resulting from exceeding the recommended Tractor Horsepower (HP) limits, high-speed impact with immovable objects (large rocks or stumps) or failure to grease bearing hubs.
Unauthorised Alterations: Any modifications, additional welding to the frame or structural repairs performed by unauthorised personnel will void this warranty.
Incidental Damage: This warranty does not cover labour costs for installation, transport costs to a repair facility, crop loss, downtime or the rental of replacement equipment.

4. LIMITATIONS:

The equipment is designed for primary and secondary tillage in suitable agricultural soils. Damage caused by attempting to use the harrow for heavy-duty land clearing, excavation, or operation in solid rock or unsuitable frozen terrain is not covered.

5. CLAIM PROCEDURE:

In the event of a failure, the purchaser must:

Immediately cease operation to prevent further damage to the frame or bearings.
Provide proof of purchase (Original Invoice).
Submit a written description and photographic evidence of the failure to the Premium Farming Equipment (PFE) service department.
If required, return the defective part to the designated service center at the purchaser's expense for evaluation.

6. REMEDY:

Premium Farming Equipment’s sole obligation under this warranty is the repair or replacement, at its discretion, of the defective part or component.

FREQUENTLY ASKED QUESTIONS

SPR Series Mounted Offset Disc Harrow: FAQ

1. Is the Springbok Range tough enough for our "hard-pan" dry season soils?

Absolutely. We’ve engineered these with a 100 x 100 mm heavy-duty top frame and 560 mm notched front discs. This provides the weight and "bite" necessary to penetrate hard, sun-baked South African soils and break up the "hard-pan" layer without the implement bouncing.

2. Can I get replacement parts easily if I break a disc or a bearing?

Yes. As a South African manufacturer, Premium Farming Equipment keeps a full stock of 30 mm EN8 axles, bearing hubs and both notched and plain discs. You won’t be waiting weeks for an international shipment during the critical planting window.

3. Why is the SPR-18DH model rated for up to 70 HP?

While the harrow is 2.1 meters wide, the offset design creates significant draft (drag) as it slices and turns the soil. We recommend 60–70 HP to ensure your tractor can maintain a steady forward speed for the best "shattering" effect of the soil clods.

4. My lands have a lot of rocks; will those solid axles snap?

We use 30 mm SOLID Round Bar EN8 for our gang bolts. EN8 is a high-tensile steel known for its "toughness"—it is designed to absorb high-impact shocks from hidden rocks or stumps that would typically snap or bend inferior hollow or low-grade axles.

5. How does the "Mounted" design compare to a "Trailed" harrow for my smaller fields?

The Springbok Range is a 3-point mounted (CAT-2) system. This is a massive advantage for smaller or "awkward" South African fields where you need to make tight turns at the headlands. It also makes transport on public gravel roads much safer and faster since you can lift the entire unit off the ground.

6. Does this harrow handle thick maize or sunflower residue?

Yes. The 225 mm disc spacing and the aggressive notched front gang are designed to chop and incorporate thick crop residue back into the soil. This prevents the "balling up" or clogging that often happens with smaller, lighter garden-grade harrows.

7. Can I adjust the "aggressiveness" of the cut?

Yes. By adjusting the offset angle of the gangs via the 10 mm mounting plates, you can choose between a light "finishing" pass or a deep, aggressive "primary" soil turning pass.