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
La siguiente tabla presenta los parámetros de ingeniería clave para nuestro agricultural stone burier gearboxTodas las especificaciones enumeradas pueden modificarse a través de nuestro servicio de fabricación a medida.
| Especificación | Valor calificado | Personalización |
|---|---|---|
| Número de etapas de engranajes | 1 | Multietapa para altas proporciones |
| Respiradero / Ventilación | Screw-in breather cap | Tipos para todo tipo de clima |
| Dureza de la superficie del engranaje | HRC 57 – 65 | Carburizado + rectificado |
| Tipo de tapón de drenaje | Válvula de drenaje rápido | Opción de puerto de muestreo |
| Gear Face Width | 50 mm | Wider for high-torque |
| Par de entrada máximo | 200 Nm | Con protección contra sobrecarga |
| Diámetro del eje de salida | 55 mm | Coincidencia para implementar acoplamiento |
| Input Shaft Spline | 6-spline (1-3/8″) / 21-spline (1-3/4″) | 20-spline, 8-spline on request |
| Módulo / Paso diametral | M5 | Módulos más finos/gruesos disponibles |
| Ambient Temperature Range | -25°C to +95°C | Arctic / tropical variants |
| Oil Capacity | 1.9 litres | Oversized sump available |
| Recubrimiento de superficie | E-coat + powder coat | Colores RAL personalizados disponibles |
| Rated Power Capacity | 20 – 250 HP (15-186 kW) | Higher ratings available |
| Gear Core Hardness | HRC 28 | Tough shock-absorbing core |
| Dirección de rotación | Bi-directional | Modelos reversibles |
| Primary Gear Type | Crown Gears | Custom tooth profiles on request |
| Material de vivienda | Spheroidal Graphite Iron | Mejoras de materiales opcionales |
| Design Standard | AGMA 2001-D04 | Third-party certified |
| Par máximo continuo | 100 – 1200 Nm | Par máximo: 150% de funcionamiento continuo |
| Distancia al centro | 75 mm | Por relación de transmisión |
Contacta con nosotros equipo de ingeniería 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:
| Punto de comparación | Mercado de repuestos genéricos | Our Stone Burier Gear Drive |
|---|---|---|
| Bearing Specification | Recycled bearings, inconsistent quality | Premium tapered roller bearings, precision pre-loaded, 10,000-hr L10 life |
| Noise & Vibration | Significant tonal noise from poor gear mesh | Balanced rotating assembly, vibration below 2.5 mm/s RMS |
| Expected Service Life | 500-1,000 hours — frequent replacement needed | 5,000-8,000 hours demonstrated in Australian commercial operations |
| Material y tratamiento de los engranajes | Grey iron gears, no heat treatment | 18CrNiMo7-6 aerospace-grade steel, shot-peened root fillets for fatigue life |
| Piezas de repuesto | No se venden piezas individuales; es necesario comprar la caja de cambios completa. | Full inventory, ships 24-48 hours |
| Garantía y soporte | La garantía de 12 meses no cubre sellos ni rodamientos. | Full 2-year warranty + engineer hotline + install support |
| Sistema de sellado | Junta de goma NBR de un solo labio, sin filtro antipolvo. | Sello de tipo casete con carcasa metálica y labio de rechazo de suciedad integrado |
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
El 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
Las referencias a marcas se proporcionan únicamente para ayudar a los clientes a identificar cajas de cambios de repuesto compatibles. Todas las marcas registradas pertenecen a sus respectivos propietarios.
Our 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
Rebuild Kits & Parts
🔎 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.
💡 Consejo profesional: 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.
⚠ Fuga de aceite en los sellos del eje
Likely cause: Nivel de aceite excesivo que crea una presión interna excesiva
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.
⚠ Vibración excesiva durante el funcionamiento
Likely cause: Juntas universales desgastadas en la transmisión
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.
⚠ Ruido de rechinido o zumbido anormal
Likely cause: Lubricante insuficiente o grado de aceite incorrecto
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.
⚠ Gearbox Running Excessively Hot
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.
⚠ El eje de salida deja de girar mientras gira el eje de entrada.
Likely cause: Dientes de engranaje desgastados o engranaje roto
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
Operación: family-run farming operation | Tamaño: 3000 acres | Usar: Stone Burier gearbox for soil preparation
Motivo de la compra: New equipment build — specifying aftermarket gearbox as OEM improvement
“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 |
| Ubicación: | Narrabri, NSW |
| Tamaño de la granja: | 1200 acres |
| Solicitud: | Stone Burier gearbox for stone burier — soil preparation |
| Motivo de la compra: | Sustitución de emergencia a mitad de temporada tras un fallo catastrófico de la caja de cambios original. |
“We stress-test our equipment in ways that would void most warranties. This gearbox has handled everything we’ve thrown at it — heavy clay soils — without complaint.”
— George Barker, Narrabri, NSW
Wayne Crawford — Wagga Wagga, NSW
Operación: broadacre cropping operation | Tamaño: 1500 acres | Usar: Stone Burier gearbox for soil preparation
Motivo de la compra: 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.”
