Description
EP-9.311 Rotary Cultivator PTO Gearbox — Precision PTO Gearbox for Agricultural Implements
Engineered for peak field performance, the EP-9.311 Rotary Cultivator PTO Gearbox combines advanced spiral bevel gear technology with a durable ductile cast iron enclosure. Operating at 1:3 reduction ratio and handling up to 50HP, it meets the rigorous demands of modern farming.
📋 EP-9.311 Technical Specifications
| Parameter | Specifikation |
|---|---|
| Modell | EP-9.311 |
| Utväxlingsförhållande | 1:3 |
| Kugghjulständer | 36/12 |
| Växelmodul | 4.35 |
| Nominell effekt (hk) | 50 |
| Nominell ingångshastighet | 540 varv/min |
| Ingång/Utgång | 1 3/8 Z6 / Optic axis / Optic axis |
| Växelmaterial | 20CrMnTi legerat stål, karburiserat och härdat (58–62 HRC) |
| Höljets material | Segjärn |
| Lager | Koniska rullager |
| Tätningar | Dubbelläppade NBR-oljetätningar med dammavskiljare |
| Nettovikt | 21 kg |
⭐ Viktiga funktioner och tekniska fördelar
🛡 Reinforced Cast Iron Body
QT500-7 ductile cast iron housing engineered to withstand repeated vibration and impact loads generated during rotary tilling of compacted and rocky soils.
💧 Triple-Sealed Against Soil Ingress
Three-stage sealing system with labyrinth seal, double-lip oil seal, and external dust cap provides complete protection against fine soil particles and moisture penetration.
⚡ Optimized for High-Torque Tilling
3:1 reduction ratio amplifies tractor PTO torque by 300%, delivering the sustained rotational force required to break through hardpan, clay, and heavily compacted field soils.
🔧 Universal Tiller Fitment
Input and output shaft specifications match standard rotary cultivator mounting dimensions used across European, Japanese, and Chinese tiller brands.
💥 Anti-Vibration Mounting
Precision-machined mating surfaces and oversized mounting bolts reduce gear mesh vibration by 40% compared to spur gear designs, protecting both the gearbox and tiller frame.
🌡️ All-Season Operation
Rated for continuous operation from -20°C to +110°C with synthetic EP gear lubricant, supporting spring preparation through autumn harvest tilling cycles.
🔄 Information om kompatibilitet och passform
The EP-9.311 is designed with standard industry mounting dimensions and shaft specifications, making it a direct replacement for gearboxes found on many popular agricultural implements. Compatible implement brands include (referenced for cross-referencing purposes only — these are not trademark claims):
Howard
Maschio
Kuhn
Yanmar
Kubota
Agric
Breviglieri
Celli
Falc
Sicma
Friskrivning: Varumärken listas enbart för korsreferens och kompatibilitetsidentifiering. Ever-power Australia PTO Gearbox Co.,Ltd. är inte anslutet till eller godkänt av ovanstående varumärken.
🔎 Urvals- och storleksguide
Choosing the right cultivator gearbox affects tilling depth, soil finish, and fuel efficiency. Use these criteria to determine if the EP-9.311 meets your needs:
⚙ Matcha utväxlingsförhållandet till tillämpningen
Förhållande 1:1 till 1:1,5 — Minimal hastighetsreduktion; används när redskapets blad-/pinnarhastighet ska matcha kraftuttagsvarvtalet noggrant. Vanligt för finklippare och lättare applikationer.
Förhållande 1:1,5 till 1:2 — Måttlig vridmomentökning med proportionell hastighetsminskning. Lämplig för vanliga rotorklippare, medeltunga gräsklippare och universalredskap.
Förhållande 1:2,5 till 1:3+ — Hög vridmomentförstärkning för tunga laster. Oumbärligt för rotorkultivatorer, grävmaskiner och röjsågar som arbetar i tätt material.
⚡ Matcha traktorns hk med växellådans effekt
Välj alltid en växellåda med en nominell effekt (hk) som är lika med eller större än traktorns maximala kraftuttagseffekt. Att köra en växellåda över sin nominella effekt orsakar överhettning, snabbare kugghjulsslitage och för tidigt haveri. Som en god praxis, bibehåll en säkerhetsmarginal på 10-20% över din faktiska driftsbelastning.
🔄 540 varv/min vs 1000 varv/min — Vilket kraftuttagsvarvtal?
540 varv/min kraftuttag is the standard for most agricultural implements under 100HP. The EP-9.311 is designed for 540 RPM input. 1000 varv/min kraftuttag används på traktorer med högre hästkrafter (vanligtvis 75 hk+) och kräver en växellåda som är specifikt klassad för den hastigheten. Anslut inte en växellåda på 540 varv/min till ett kraftuttag på 1000 varv/min utan en hastighetsadapter.
🛡 Aluminium kontra gjutjärnshölje
AluminiumBäst för kompakttraktorer under 25 hk, kustnära/fuktiga miljöer och tillämpningar där vikten spelar roll (gräsklippare, små rotorklippare). Utmärkt värmeavledning och korrosionsbeständighet.
GjutjärnKrävs för medeltunga till tunga tillämpningar över 25 hk. Överlägsen stöttålighet och strukturell styvhet för röjning, tung gräsklippning, kultivering och grävning av efterhål.
🔧 Standard vs. specialväxellåda
Våra standardmodeller täcker 90% av vanliga jordbruksväxellådor med monterings- och axeldimensioner enligt branschstandard. För OEM-tillverkare eller unika redskapsdesigner som kräver icke-standardiserade utväxlingar, axelkonfigurationer eller monteringsmönster erbjuder vi fullständig kundanpassad tillverkning med en MOQ på så lite som 50 enheter. Kontakta vårt teknikteam för att diskutera dina anpassade krav.
🌱 Typiska applikationsscenarier
Stubble Incorporation
Chops and incorporates crop residue into the top 150-200mm of soil to accelerate decomposition.
Orchard & Vineyard Tillage
Between-row cultivation for weed control and soil aeration in permanent crop plantations.
Greenhouse Soil Conditioning
Precision tilling of controlled-environment growing beds for transplant preparation.
Pasture Renovation
Breaking up compacted pasture soils and incorporating seed and fertilizer for grassland renewal.
🛠 Installations- och installationsguide
Follow these steps to install the EP-9.311 on your implement. Always refer to the included instruction manual for model-specific torque values and safety precautions.
- Park the tractor on level ground, lower the cultivator fully, and disconnect the PTO shaft. Ensure the engine is off and hydraulics are depressurized.
- Support the cultivator frame securely with jack stands. Remove the column-to-frame mounting bolts and disconnect the gearbox output from the rotor drive.
- Unbolt and remove the old gearbox assembly. Note the column length and any spacer/shim positions for reassembly reference.
- Clean all mating surfaces on the cultivator frame. Install any required gaskets or O-rings supplied with the new EP-9.311 gearbox.
- Mount the new gearbox to the frame, inserting and hand-tightening bolts first. Verify shaft alignment with the rotor drive before final torquing to 80-100 Nm.
- Reconnect the PTO shaft to the gearbox input. Verify full spline engagement depth and install the shear bolt or overload clutch.
- Fill with the recommended gear oil to the level plug. Run at idle PTO speed for 10 minutes without ground engagement to bed in the gears.
❓ Vanliga frågor
What warranty coverage applies?
All EP cultivator gearboxes carry a 12-month warranty against manufacturing defects. Damage from overloading, incorrect oil, or improper installation is excluded.
What gear oil does this cultivator gearbox require?
Use SAE 90 or GL-5 rated EP90 heavy-duty gear oil. The high-torque tilling application demands extreme-pressure additives to protect the gear teeth. Fill to the level plug — approximately 1.5 to 2.5 liters depending on model.
How do I know which column length to order?
Measure the distance from your tractor PTO centerline to the cultivator rotor centerline. We offer multiple column length options (375mm to 1500mm) to match different tiller widths. Contact us with your tiller model for a recommendation.
Can I use this gearbox for a power harrow?
While both are soil-working implements, power harrows require different output configurations. This gearbox is specifically designed for rotary cultivator/tiller applications. Contact us for our power harrow gearbox range.
What maintenance schedule do you recommend?
Change oil after first 50 hours, then every 150 operating hours. Inspect seals for soil ingress after each use. Grease the input shaft spline every 100 hours. Check bolt torques monthly during heavy-use seasons.
💬 Kundrecensioner och fältrapporter
“Perfect replacement for our Maschio tiller gearbox. Same dimensions, same performance, half the price. We have been running it for two seasons with no problems at all.”
— Giovanni F., Emilia-Romagna, Italy
“Ordered for our 60-inch tiller. Quality is very good — machining is clean and seals are tight. Delivery was prompt. Would buy again.”
— James C., Iowa, USA
“Excellent build quality. The gear noise is remarkably low compared to our previous gearbox. Oil stays clean even after 150 hours of paddy field preparation.”
— Hiroshi K., Hokkaido, Japan
“We needed a tough gearbox for tilling compacted maize stubble land. This EP gearbox has outlasted two cheaper brands we tried before. Very satisfied.”
— Pieter V., Free State, South Africa
“This gearbox transformed our rotary hoe. We till 200 acres of heavy clay each spring and this unit handles it without flinching. The 1:3 ratio gives excellent torque at the tines.”
— Bruce M., Victoria, Australia
📈 EP-9.311 vs Economy Gearboxes — Head-to-Head Comparison
Before selecting a PTO gearbox, compare the EP-9.311 specifications against common economy alternatives to see where the real differences lie:
| Feature | EP-9.311 (Ever-power) | Economy Alternative |
|---|---|---|
| Växelmaterial | 20CrMnTi Alloy Steel (58-62 HRC) | 40Cr or plain carbon steel (45-50 HRC) |
| Heat Treatment | Carburizing + Quenching + Tempering | Surface hardening only |
| Housing | Ductile Cast Iron (tensile > 450 MPa) | Grey cast iron or recycled aluminum |
| Lager | Tapered roller bearings (major brand) | Deep groove ball bearings (unbranded) |
| Tätningar | Double-lip NBR/Viton with dust excluder | Single-lip generic rubber seal |
| Transmission Efficiency | 96%+ | 88-92% |
| Service Life (estimated) | 3,000+ hours | 800-1,200 hours |
| Warranty | 12 months | 3-6 months or none |
🔗 Related Products & Accessories
PTO Drive Shafts
Wide angle, telescoping, and standard PTO shafts with shear bolt and slip clutch protection.
Replacement Gears & Bearings
OEM-quality spiral bevel gear sets, tapered roller bearings, and oil seal kits for field repairs.
Sprockets, Pulleys & Chains
Agricultural roller chain, sprockets, V-belt pulleys, and timing belt pulleys for implement drives.
Custom OEM Gearboxes
Custom gear ratios, shaft configurations, and housing designs for implement manufacturers (MOQ 50+).
➔ Browse our full product catalog
🏆 Certifications & Quality Standards
ISO 9001:2015 Certified
Our manufacturing facility operates under a certified ISO 9001:2015 quality management system, ensuring consistent product quality from raw material inspection through final testing.
Material Test Certificates
Every batch of 20CrMnTi gear steel is accompanied by a mill certificate verifying chemical composition and mechanical properties. Hardness testing reports are available on request.
100% Factory Tested
Each gearbox undergoes run-in testing, noise measurement, and oil leak inspection before packaging. No unit ships without passing our final QC gate.
🏭 About Ever-power Australia PTO Gearbox Co.,Ltd.
We are a specialist manufacturer of agricultural PTO gearboxes, drive shafts, and power transmission components with over 19 years of production experience. Our 3,800 m² facility houses CNC gear hobbing, grinding, and heat treatment lines capable of producing over 50,000 gearbox units annually. More than 95% of our production is exported to Europe, Australia, North America, and Asia, serving both aftermarket distributors and OEM implement manufacturers.
We offer full OEM and ODM services — from custom gear ratio engineering to private-label packaging. Our minimum order quantities start at just 50 units for custom specifications, and we maintain ready stock of popular models for immediate dispatch. Whether you need a single replacement gearbox or a container load for your distribution network, we deliver competitive pricing, consistent quality, and responsive technical support.
📞 Ready to Order the EP-9.311? Let’s Talk.
Whether you need a single replacement unit or bulk OEM supply, our team is ready to assist with product selection, pricing, and fast international shipping. Contact us today for a free quote.
