High-Performance Agricultural Gearbox for Stone Burier Applications
Your stone burier depends on a gearbox that can translate raw PTO power into productive soil preparation force — reliably, efficiently, and without unexpected failure. That is exactly what our Stone Burier agricultural gearbox delivers. Mounted centrally on the stone burier frame, this gearbox powers the rotor that lifts soil and rocks, sifts them through a rear screen, and buries stones below the surface while leaving a smooth, stone-free seedbed on top.
We engineer each gearbox specifically for the mechanical profile of soil preparation. The gear geometry, bearing selection, and housing design are all optimized for the load patterns, duty cycles, and environmental exposures unique to stone burier operations across Australian farming conditions.
⚙ Stone Burier Gearbox — Engineering Data Sheet
The following table presents key engineering parameters for our agricultural stone burier gearbox. Every specification listed can be modified through our custom manufacturing service.
| Specification | Rated Value | Customization |
|---|---|---|
| Numero di marce | 1 | Multistadio per rapporti elevati |
| Breather / Vent | Screw-in breather cap | All-weather types |
| Durezza superficiale degli ingranaggi | HRC 57 – 65 | Carburato + macinato |
| Tipo di tappo di scarico | Quick-drain valve | Opzione porta di campionamento |
| Gear Face Width | 50 mm | Wider for high-torque |
| Coppia massima in ingresso | 200 Nm | Con protezione da sovraccarico |
| Output Shaft Diameter | 55 mm | Match to implement coupling |
| Input Shaft Spline | 6-spline (1-3/8″) / 21-spline (1-3/4″) | 20-spline, 8-spline on request |
| Modulo / Passo diametrale | M5 | Sono disponibili moduli più fini/più grossolani |
| Ambient Temperature Range | -25°C to +95°C | Arctic / tropical variants |
| Capacità del petrolio | 1.9 litres | Pozzetto di raccolta sovradimensionato disponibile |
| Rivestimento superficiale | E-coat + powder coat | Colori RAL personalizzati disponibili |
| Potenza nominale | 20 – 250 HP (15-186 kW) | Sono disponibili valutazioni più elevate |
| Gear Core Hardness | HRC 28 | Tough shock-absorbing core |
| Rotation Direction | Bi-directional | Reversible models |
| Tipo di ingranaggio primario | Crown Gears | Profili dentali personalizzati su richiesta |
| Housing Material | Spheroidal Graphite Iron | Material upgrades optional |
| Standard di progettazione | AGMA 2001-D04 | Certificato da terze parti |
| Maximum Continuous Torque | 100 – 1200 Nm | Peak torque: 150% of continuous |
| Distanza dal centro | 75 mm | Per rapporto di trasmissione |
Contattaci team di ingegneri for a detailed specification sheet tailored to your stone burier model and soil preparation conditions.
🏆 Performance Advantages — Why Our Stone Burier Gearbox Leads the Field
We believe in transparency. These are the specific, verifiable differences between our Stone Burier gear drive and low-cost alternatives:
| Comparison Point | Generic Aftermarket | Our Stone Burier Gear Drive |
|---|---|---|
| Specifiche dei cuscinetti | Recycled bearings, inconsistent quality | Premium tapered roller bearings, precision pre-loaded, 10,000-hr L10 life |
| Rumore e vibrazioni | Rumore tonale significativo dovuto a un innesto degli ingranaggi scadente | Gruppo rotante bilanciato, vibrazioni inferiori a 2,5 mm/s RMS |
| Durata di servizio prevista | 500-1,000 hours — frequent replacement needed | 5.000-8.000 ore di esperienza dimostrate in operazioni commerciali australiane |
| Gear Material & Treatment | Grey iron gears, no heat treatment | 18CrNiMo7-6 aerospace-grade steel, shot-peened root fillets for fatigue life |
| Spare Parts | No individual parts — must buy complete gearbox | Full inventory, ships 24-48 hours |
| Garanzia e assistenza | 12-month warranty excludes seals and bearings | Full 2-year warranty + engineer hotline + install support |
| Sealing System | Single-lip NBR rubber seal, no dust excluder | Cassette-type metal-cased seal with integrated dirt rejection lip |
Every dollar spent on a premium gearbox returns multiple dollars in avoided repairs and preserved crop value. Request an ROI analysis for your operation.
⚙ From PTO to Screening Rotor — Stone Burier Gearbox Anatomy
The Stone Burier gearbox operation can be understood through four interconnected systems:
1 — Input System: Your tractor’s PTO shaft engages with the gearbox through a hardened splined input shaft. The interface transmits torque while allowing minor angular misalignment. Inside, spherical roller bearings support the input shaft and manage the combined loading of transmitted torque and driveline forces.
2 — Conversion System: Precision crown gears inside the gearbox reduce PTO speed while multiplying torque to match the screening rotor’s demands. Mounted centrally on the stone burier frame, this gearbox powers the rotor that lifts soil and rocks, sifts them through a rear screen, and buries stones below the surface while leaving a smooth, stone-free seedbed on top. The gears are manufactured from carburized alloy steel, ground to tight tolerances, and profiled for quiet, efficient power transfer.
3 — Output System: The transformed power exits through the output shaft to the stone burier’s working mechanism, specifically driving the screening rotor for core soil preparation function. The output connection is engineered for vibration-free, backlash-free transmission at the point of work.
4 — Protection System: Every shaft penetration is protected by a labyrinth seal, creating multi-barrier defense against dust, moisture, and crop debris. synthetic PAO 75W-90 provides continuous splash lubrication. The grey cast iron housing features integrated cooling fins for thermal management.
✅ Stone Burier Gearbox — Brand-by-Brand Compatibility
I riferimenti ai marchi sono forniti esclusivamente per aiutare i clienti a identificare i cambi di ricambio compatibili. Tutti i marchi appartengono ai rispettivi proprietari.
Nostro Stone Burier gearbox directly replaces the factory gear drive on the following stone burier brands:
Model 2839, Series 808
✅ Compatible
837T, G3.3
✅ Compatible
E-701, Mk-IV
✅ Compatible
Mk-IV, Model 1328
✅ Compatible
A-574, Type 99E
✅ Compatible
Kit di riparazione e ricambi
🔎 Buyer’s Checklist — Stone Burier Gearbox Selection Made Simple
Use this step-by-step guide to identify the exact gearbox model for your stone burier. Click each step for detailed instructions.
💡 Consiglio da professionista: For fastest service, email us the old gearbox part number (if visible), your tractor brand and model, and your stone burier manufacturer and model. Our engineers will confirm the exact match and provide a quotation within one business day.
🛠 Installation Procedure for Your Stone Burier Gearbox
This guide covers the complete process of replacing the gearbox on your stone burier. Each step includes specific details for soil preparation equipment — follow them in sequence for best results.
Step 1 — Connect Output to screening rotor
Connect the output coupling to the screening rotor drive on your stone burier. Ensure the shaft engagement depth meets the minimum specified in the manual. Tighten all retaining hardware to the correct torque value. After connection, rotate the output by hand to verify smooth, unrestricted movement.
Step 2 — Post-Installation Checks (10-Hour Service)
Perform a 10-hour service: re-check mounting bolt torque, inspect for leaks, verify oil level, and confirm the PTO safety guard is in place. Clean any accumulated debris from the gearbox housing to maintain effective heat dissipation. Log the installation details in your equipment maintenance records.
Step 3 — Fill With Lubricant
Add gear oil through the fill port. Use the grade recommended in the installation manual. Fill until oil just begins to weep from the level check hole (if provided) or reaches the bottom of the fill port. Wipe any spilled oil from the housing. Confirm the magnetic drain plug is fully seated.
Step 4 — Remove Old Gearbox
Detach the driveline yoke from the gearbox input. If the gearbox also has an output coupling to the screening rotor, disconnect that as well. Support the gearbox from below with a hydraulic jack. Remove the mounting fasteners progressively, keeping at least two bolts finger-tight until you are ready to slide the unit out.
Step 5 — Test Run & Break-In
With the stone burier raised or in a safe test position, start the PTO at idle speed. Observe the gearbox for any vibration, unusual noise, or oil seepage. Run for 20 minutes at reduced speed. If all is normal, increase to the operating PTO speed and run for an additional 10 minutes while monitoring temperature. Re-check all mountings.
Step 6 — Connect PTO Driveline
Slide the PTO driveline yoke over the gearbox input spline. Ensure full engagement — the yoke should slide past the retaining groove and click into place. Test the engagement by pulling firmly on the yoke; it should not detach. Verify that the driveline length allows adequate telescoping stroke throughout the full range of implement movement.
Step 7 — Prepare the Mounting Surface
Scrape any old gasket material or RTV sealant from the stone burier’s gearbox mounting face. Use a flat file to remove any burrs around bolt holes. Verify all mounting holes align correctly by test-fitting the new gearbox without bolts. Check for flatness — a feeler gauge should show less than 0.1mm across the mounting surface.
⚠ Importante: For safety, never work under unsupported equipment. Use proper lifting devices when handling the gearbox unit.
⚠ Fault Diagnosis Guide — Stone Burier Gearbox
Even the best-engineered gearbox may encounter operational issues over its service life. This guide covers the most common symptoms reported with stone burier gearboxes and provides actionable field solutions.
⚠ Perdita d'olio dalle guarnizioni dell'albero
Likely cause: Overfilled oil level creating excess internal pressure
What to do: Inspect the breather cap — a blocked breather pressurizes the housing and forces oil past seals. Replace the breather and clean any debris. If leaking continues, replace the affected seal. Check the shaft surface under the seal for grooves or corrosion that may be cutting the seal lip.
⚠ Vibrazioni eccessive durante il funzionamento
Likely cause: Worn universal joints in the driveline
What to do: Vibration in a stone burier gearbox system usually originates from the driveline, not the gearbox itself. Inspect the PTO shaft U-joints — a worn joint creates a twice-per-revolution vibration pulse. Confirm the driveline is the correct length for the tractor-to-implement distance. Re-torque the gearbox mounting bolts.
⚠ Abnormal Grinding or Whining Noise
Likely cause: Insufficient lubricant or incorrect oil grade
What to do: Check oil level immediately — low oil is the most common cause of gear noise in stone burier gearboxes. If oil level is correct, the lubricant may have degraded — perform a complete oil change. Persistent noise indicates internal wear requiring professional assessment.
⚠ Il cambio si surriscalda eccessivamente
Likely cause: Operating beyond rated horsepower or duty cycle
What to do: Measure housing temperature (normal operating range: 40-80°C depending on ambient temperature). If consistently above 90°C, verify oil volume, clean the housing, and check that the gear ratio produces the correct output speed. An incorrect ratio forces the gearbox to work harder, generating excess heat.
⚠ L'albero di uscita smette di girare mentre l'albero di ingresso ruota
Likely cause: Stripped gear teeth or broken gear
What to do: If the gearbox has a shear pin or slip clutch, inspect it for activation. A tripped overload device is a protective event, not a failure — replace the pin and investigate what caused the overload. If the overload device is intact but no output is produced, internal gear or shaft failure has occurred.
For persistent or complex issues, our engineers provide remote diagnostic support via phone and email. We can also supply rebuild kits for in-workshop repairs. Reach our support team here.
📍 Real-World Performance — Stone Burier Gearbox Across Australia
Our agricultural gearboxes are field-proven across every Australian state and territory. Below are documented case studies from recent Stone Burier gearbox installations.
Bruce Campbell — Tamworth, NSW
Operazione: family-run farming operation | Misurare: 3000 acres | Utilizzo: Stone Burier gearbox for soil preparation
Motivo dell'acquisto: Costruzione di un nuovo equipaggiamento: specifica del cambio aftermarket come miglioramento OEM
“We operate in a region with heavy red soil and corrosion has been a persistent problem with gearboxes. The coating on this unit is noticeably more robust — no rust after 2 full seasons of outdoor storage.”
📍 Case #3: Narrabri, NSW
| Cliente: | George Barker — mixed farming enterprise |
| Posizione: | Narrabri, NSW |
| Dimensioni dell'azienda agricola: | 1200 acres |
| Applicazione: | Stone Burier gearbox for stone burier — soil preparation |
| Motivo dell'acquisto: | Emergency mid-season replacement after catastrophic original gearbox failure |
"Sottoponiamo le nostre apparecchiature a test di stress che invaliderebbero la maggior parte delle garanzie. Questo riduttore ha resistito a tutto ciò che gli abbiamo chiesto, compresi i terreni argillosi pesanti, senza alcun problema."
— George Barker, Narrabri, NSW
Wayne Crawford — Wagga Wagga, NSW
Operazione: broadacre cropping operation | Misurare: 1500 acres | Utilizzo: Stone Burier gearbox for soil preparation
Motivo dell'acquisto: Retrofit older model stone burier with improved gearbox for extended service life
“Installed as a replacement for a gearbox that catastrophically failed mid-season. The MowerGearbox unit was delivered within 5 days and fitted perfectly. We finished the season without further issues. Very impressed.”
