Description
EP-9.312 Rotary Cultivator PTO Gearbox — Precision PTO Gearbox for Agricultural Implements
The EP-9.312 represents the next generation of Rotary Cultivator PTO Gearbox engineering. With its ductile cast iron housing, precision spiral bevel gears, and 1:3 reduction ratio, this gearbox handles up to 62HP for sustained agricultural work.

📋 EP-9.312 Technical Specifications
| Parametr | Specyfikacja |
|---|---|
| Model | EP-9.312 |
| Przełożenie | 1:3 |
| Zęby przekładni | 12/364.58 |
| Moduł przekładni | 4.58 |
| Moc znamionowa (KM) | 62 |
| Znamionowa prędkość wejściowa | 540 obr./min |
| Wejście/Wyjście | 1 3/8 Z6 / Optic axis |
| Materiał przekładni | Stal stopowa 20CrMnTi, nawęglana i hartowana (58-62 HRC) |
| Materiał obudowy | Żeliwo sferoidalne |
| Namiar | Łożyska stożkowe |
| Foki | Dwuwargowe uszczelki olejowe NBR z odpylaczem |
| Waga netto | 27 kg |
⭐ Główne cechy i zalety inżynieryjne
📈 Adjustable Column Lengths
Available with multiple column length options to accommodate different tiller widths and tractor three-point hitch configurations.
⚙ Heavy-Duty Spiral Bevel Gears
Manufactured from 20CrMnTi alloy steel with carburizing treatment to 58-62 HRC surface hardness, providing exceptional wear resistance during high-torque soil cultivation at depths up to 300mm.
🛡 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.
🔄 Informacje o kompatybilności i dopasowaniu
The EP-9.312 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
Zastrzeżenie: Nazwy marek podano wyłącznie w celu porównania i identyfikacji kompatybilności. Firma Ever-power Australia PTO Gearbox Co.,Ltd. nie jest powiązana z powyższymi markami ani nie jest przez nie wspierana.
🔎 Przewodnik po wyborze i rozmiarach
Choosing the right cultivator gearbox affects tilling depth, soil finish, and fuel efficiency. Use these criteria to determine if the EP-9.312 meets your needs:
⚙ Dopasowanie przełożenia do zastosowania
Stosunek 1:1 do 1:1,5 — Minimalna redukcja prędkości; stosowana, gdy prędkość ostrza/zębów narzędzia powinna być zbliżona do prędkości WOM. Typowe dla kosiarek wykańczających i lekkich zastosowań.
Stosunek 1:1,5 do 1:2 — Umiarkowany wzrost momentu obrotowego z proporcjonalnym spadkiem prędkości. Nadaje się do standardowych kosiarek obrotowych, kosiarek o średniej mocy i narzędzi ogólnego zastosowania.
Stosunek 1:2,5 do 1:3+ — Wysokie wzmocnienie momentu obrotowego przy dużych obciążeniach. Niezbędne dla kultywatorów obrotowych, koparek do dołków i podkaszarek pracujących w gęstym materiale.
⚡ Dopasowanie mocy ciągnika do mocy skrzyni biegów
Zawsze wybieraj przekładnię o mocy znamionowej (KM) równej lub większej od maksymalnej mocy wyjściowej WOM Twojego ciągnika. Praca przekładni z mocą przekraczającą moc znamionową powoduje przegrzewanie, przyspieszone zużycie przekładni i przedwczesną awarię. Zaleca się zachowanie marginesu bezpieczeństwa 10-20% powyżej rzeczywistego obciążenia roboczego.
🔄 540 obr./min czy 1000 obr./min — która prędkość WOM?
WOM 540 obr./min is the standard for most agricultural implements under 100HP. The EP-9.312 is designed for 540 RPM input. WOM 1000 obr./min jest stosowany w ciągnikach o większej mocy (zazwyczaj 75 KM i więcej) i wymaga skrzyni biegów specjalnie przystosowanej do tej prędkości. Nie podłączaj skrzyni biegów 540 obr./min do WOM o prędkości 1000 obr./min bez adaptera prędkości.
🛡 Obudowa aluminiowa kontra żeliwna
Aluminium:Najlepszy do kompaktowych ciągników o mocy poniżej 25 KM, środowisk nadmorskich/wilgotnych oraz zastosowań, w których waga ma znaczenie (kosiarki wykańczające, małe kosiarki obrotowe). Doskonałe odprowadzanie ciepła i odporność na korozję.
Lane żelazo: Wymagane do zastosowań o średniej i dużej mocy powyżej 25 KM. Doskonała odporność na wstrząsy i sztywność konstrukcyjna do koszenia krzewów, intensywnego koszenia, uprawy roli i kopania dołków.
🔧 Standardowa a niestandardowa skrzynia biegów
Nasze standardowe modele obejmują 90% typowych zastosowań przekładni rolniczych ze standardowymi w branży wymiarami mocowania i wału. Dla producentów OEM lub nietypowych projektów maszyn wymagających niestandardowych przełożeń, konfiguracji wału lub wzorów mocowania, oferujemy pełną produkcję na zamówienie, z minimalnym zamówieniem minimalnym już od 50 sztuk. Skontaktuj się z naszym zespołem inżynierów aby omówić Twoje niestandardowe wymagania.
🌱 Typowe scenariusze zastosowań

Pasture Renovation
Breaking up compacted pasture soils and incorporating seed and fertilizer for grassland renewal.
Seedbed Preparation
Creates fine, uniform seedbed tilth for direct seeding of cereal crops, vegetables, and cover crops.
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.
🛠 Przewodnik instalacji i konfiguracji
Follow these steps to install the EP-9.312 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-9.312 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.
❓ Najczęściej zadawane pytania
How do I handle a seized gearbox?
First, drain the oil and inspect for metal contamination. If gears are not damaged, flush with diesel fuel, refill with fresh oil, and run at no-load for 5 minutes. If metal fragments are present, the gearbox requires professional rebuild or replacement.
Does operating depth affect gearbox life?
Yes. Deeper tilling (200mm+) significantly increases load on the gearbox. Ensure your tractor PTO horsepower exceeds the gearbox rated power by at least 20% when operating at maximum depth in heavy soils.
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.
💬 Opinie klientów i raporty terenowe
“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
“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
📈 EP-9.312 vs Economy Gearboxes — Head-to-Head Comparison
When comparing the EP-9.312 against lower-cost alternatives, the differences become clear in materials, engineering tolerances, and long-term durability:
| Funkcja | EP-9.312 (Ever-power) | Economy Alternative |
|---|---|---|
| Materiał przekładni | 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 |
| Namiar | Tapered roller bearings (major brand) | Deep groove ball bearings (unbranded) |
| Foki | 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-9.312? 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.
