EP-GS4RC Lawn Mower Gearbox

EP-GS4RC Lawn Mower Gearbox

The EP-GS4RC is a field-proven 30 HP rotary cutter gearbox with taper-spline output designed as a drop-in replacement for popular OEM units. Equipment dealers and service workshops stock this model because its standardized dimensions and dual-ratio design cover the widest range of customer machines.

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Descripción


EP-GS4RC Rotary Cutter Gearbox — Precision Power Transmission for Modern Mowing

El EP-GS4RC represents the latest in caja de cambios agrícola engineering. With 30 HP capacity, 1:1.46 / 1:1.93 ratio configuration, and 19 Kg optimized construction, it delivers the power density and reliability today’s farming operations require.

EP-GS4RC Rotary Cutter Gearbox

📈 EP-GS4RC Technical Specifications

Parámetro Especificación
Número de modelo EP-GS4RC
Tipo de caja de cambios Rotary Cutter Gearbox
Relación(es) de transmisión 1:1.46 / 1:1.93
Configuración de los dientes 22/15, 23/12
Módulo de engranajes 5.08 / 5.0
Potencia nominal 30 HP
Velocidad de entrada 540 rpm
Eje de entrada/salida 13/8 Z6, Taper spline
Peso neto 19 Kg
Material de engranajes Acero aleado 20CrMnTi, carburizado y endurecido HRC 58-62
Material de vivienda Grey Cast Iron (HT200/HT250)
Protección de sellado Retenes de aceite multilabios NBR/FKM, con clasificación IP65+
Lubricación Aceite para engranajes SAE 80W-90 o 85W-140 EP
Tratamiento de superficies Imprimación electroforética + recubrimiento en polvo de poliéster, acabado rojo.

⭐ Características clave y ventajas de ingeniería

🚀

1 3/4″ Z20 Heavy-Duty Input Spline

Oversized 20-spline input rated for tractors to 160 HP, with hardened spline teeth and precision-honed bore for zero-backlash PTO engagement.

💪

Double-Row Output Bearings

Paired tapered roller bearings at the output position handle 45+ kN radial load, holding the shaft rigid under maximum cutting force from thick brush.

⚙

Sellado hermético de cinco etapas

El laberinto, la doble capa de Viton, la cámara de grasa presurizada y el escudo blindado mantienen la hermeticidad incluso durante la inmersión total o el lavado a alta presión.

⚗

Cubo de salida forjado de 8 pernos 4340

Cubo de salida de acero al níquel-cromo-molibdeno, diseñado para soportar conjuntos de cuchillas de 80 kg y pares de corte sostenidos superiores a 2000 Nm: nuestra interfaz de salida más resistente.

🔒

Juntas de alta temperatura FKM Viton

Los sellos de eje de fluoroelastómero tienen una clasificación de temperatura de -25 °C a +200 °C, lo que garantiza un rendimiento sin fugas ante las fluctuaciones extremas de temperatura estacionales que se producen en la agricultura en cualquier condición climática.

⚡

Perfil de buje inferior a 180 mm

Su diseño vertical delgado permite una separación reducida entre los discos para un corte continuo y sin superposiciones, algo fundamental para la formación de hileras limpias en densos pastizales de alfalfa y pastos mixtos.

Caja de engranajes de segadora para uso agrícola

🔧 Compatibilidad de equipos y referencias cruzadas

🔄 Cross-Reference Compatibility for EP-GS4RC

The EP-GS4RC is engineered as a direct replacement or upgrade for gearboxes fitted to equipment from leading manufacturers including:

Branson • Dongfeng • John Deere • AGCO • Rhino • LS Tractor • Fella • Sonalika

Descargo de responsabilidad: Las marcas mencionadas anteriormente se utilizan únicamente para identificar la compatibilidad. Ever-power Australia Mower Gearbox Co., Ltd. no está afiliada, respaldada ni autorizada por ninguno de los fabricantes mencionados. Todas las marcas registradas pertenecen a sus respectivos propietarios.

📚 Guía de selección de cajas de cambios

Selecting a gearbox that matches your exact requirements avoids premature wear and costly downtime. Consider these points for the EP-GS4RC:

📌 Consideraciones sobre el peso y el montaje
At 19 Kg, the EP-GS4RC is designed for compact and sub-compact tractor implements. Confirm your implement frame and three-point hitch can support this weight plus the weight of the blade assembly. Mounting bolt pattern and orientation should match your existing layout.
📌 Adaptación de la relación de engranajes a la velocidad de la punta de la cuchilla
For the EP-GS4RC with ratio(s) 1:1.46 / 1:1.93, calculate your required blade tip speed: typically 4,500-5,500 m/min for standard rotary cutters, 3,000-4,000 m/min for heavy brush cutting, and 5,500-6,500 m/min for fine finish mowing. Output RPM = PTO RPM ÷ ratio. Multiply by blade diameter to get tip speed.
📌 Dimensionamiento de la potencia nominal en relación a la potencia de la toma de fuerza del tractor (HP)
The EP-GS4RC is rated at 30 HP. Always select a gearbox rated at or above your tractor’s maximum PTO horsepower. For shock-load applications (mulching, brush clearing), add a 25-30% safety margin: a 60 HP tractor should use a 75+ HP rated gearbox.
📌 Selección de toma de fuerza (PTO) de 540 RPM frente a 1000 RPM
The EP-GS4RC operates at 540 rpm. Most rotary mowers use 540 RPM PTO. The 1000 RPM standard is for larger implements on high-HP tractors. Never connect a 540 RPM gearbox to a 1000 RPM PTO — the doubled speed will destroy bearings and gears within minutes.
📌 Cast Iron Housing vs Aluminium Housing
The EP-GS4RC uses a grey cast iron housing. Cast iron excels in vibration damping, impact resistance, and heat dissipation — ideal for rough, rocky mowing conditions. Aluminium is lighter and more corrosion-resistant, better suited to wet environments and weight-sensitive implements.

🌾 Escenarios de aplicación típicos

🌾 Sugar cane and crop stubble field mulching

🚘 Dairy farm laneway and yard surround maintenance

🌱 Conservation tillage and minimum-disturbance cultivation

⛰ Railway corridor vegetation control programs

🌳 Estate, golf course, and sportsfield maintenance

Planta de fabricación de Ever-power Australia Mower Gearbox Co., Ltd.

🛠 Guía de instalación y configuración

  1. Asegúrese de que el eje de la toma de fuerza tenga una superposición de estrías de al menos 50% en todas las posiciones de funcionamiento. Una superposición insuficiente provoca un desgaste rápido de las estrías y una posible separación del eje.
  2. Anote la fecha de instalación, la lectura del contador de horas del tractor y el número de serie de la caja de cambios en su registro de mantenimiento para el seguimiento de la garantía y los intervalos de servicio.
  3. Si va a reemplazar una unidad existente, drene completamente el aceite viejo, retire los sujetadores de montaje y baje con cuidado la caja de engranajes vieja. Fotografie la posición y anote las arandelas de ajuste utilizadas.
  4. Primero, apriete todos los tornillos de montaje a mano y, a continuación, aplique el par de apriete especificado siguiendo un patrón en cruz (o estrella) para asegurar una sujeción uniforme. Par de apriete típico: 80-120 Nm, según el tamaño del tornillo.
  5. With the implement raised and blades clear of the ground, engage the PTO at low idle speed. Listen for any unusual noise and observe for vibration or oil leaks.
  6. Verify that the mower implement safety chain or restraint is properly connected to prevent the gearbox from contacting the ground if the three-point hitch fails.
  7. Apply a thin, even bead of RTV silicone sealant to the mounting flange face if a pre-cut gasket is not included with the new gearbox.

❓ Preguntas frecuentes

❓ How do I determine the correct model for my mower?

You need four pieces of information: (1) tractor PTO HP, (2) PTO speed (540 or 1000 RPM), (3) current gearbox mounting dimensions, and (4) output shaft type. Send us these details and we will cross-reference the best match.

❓ Is synthetic gear oil recommended?

Synthetic PAO-based 75W-90 or 80W-140 GL-5 oil is excellent, especially in extreme temperatures. Synthetics offer better cold-flow, higher film strength, and longer drain intervals. Fully compatible with all our seal materials.

❓ What shipping methods are available?

Sea freight (20-35 days), air freight (5-10 days), and express courier (3-5 days) worldwide. Sea freight is most economical for bulk orders. All shipments include protective packaging, documentation, and full tracking.

❓ Can this unit directly replace my OEM gearbox?

Yes. Our mounting patterns, shaft diameters, and spline profiles match industry-standard OEM dimensions. We supply detailed technical drawings for cross-referencing. If your existing unit differs slightly, our engineering team can advise on adapters.

❓ What happens if I accidentally run it dry?

Stop the PTO immediately. Even a few minutes without oil causes severe gear scoring and bearing damage, typically requiring a full internal rebuild. Always verify oil level before engaging the PTO.

⭐ Opiniones de clientes e informes de campo

★★★★★

📍 Tasmania, Australia

Our mechanic was impressed by the machining quality when he opened the box. Everything was precisely finished and well-protected for shipping.

★★★★★

📍 Saskatchewan, Canada

The split-line O-ring seal is a real bonus. Saves us time in the workshop and lets us spend more hours in the paddock. Great design.

★★★★★

📍 Hokkaido, Japan

Oil change was simple thanks to the drain and fill locations being well-positioned. Small details like this show engineering thought.

★★★★☆

📍 Castilla, Spain

We needed a gearbox fast after a mid-season failure. This arrived in 5 days, bolted on in an hour, and has been perfect since.

★★★★☆

📍 Mendoza, Argentina

Bolt pattern matched my slasher perfectly. Quieter than the original gearbox it replaced and the oil stays clean much longer between changes.

Gama de cajas de cambios agrícolas

⚖ EP-GS4RC vs. Low-Cost Alternatives

Característica EP-GS4RC (Ever-power) Alternativa genérica/de bajo costo
Seal Longevity ✔ FKM/Viton Seals, 2000+ Hour Service Life ✘ NBR Seals, 500-800 Hours Before Leaking
Breather ✔ Labyrinth Stainless Steel Breather Valve ✘ Simple Open Vent Hole, Allows Water Entry
Gear Forging Method ✔ Closed-Die Forged, Grain-Flow Aligned ✘ Open-Die Forged or Cast, Weak Grain Structure
Cooling Design ✔ Machined External Cooling Fins, 35% More Area ✘ Smooth Housing, Poor Heat Dissipation
Output Flange ✔ Forged Steel, Heat-Treated HRC 28-32 ✘ Cast Iron, Untreated, Prone to Cracking
Material de engranajes ✔ 20CrMnTi Forged Alloy Steel, Carburized HRC 58-62 ✘ 45# Carbon Steel, Surface Hardened HRC 40-45
Warranty ✔ 12-Month Full Manufacturer Warranty ✘ 3-6 Month Limited Warranty

🔄 Productos y accesorios relacionados

🏆 Certificaciones y estándares de calidad

The EP-GS4RC is produced in our ISO 9001:2015 certified facility with full material traceability from steel mill to finished product. We perform incoming material inspection (spectrometry and hardness), in-process dimensional verification at every machining stage, and final assembly testing that includes noise, vibration, and oil-leak checks. Certificates of conformance are available on request.

🏭 ¿Por qué elegir Ever-power Australia Mower Gearbox Co.,Ltd.?

Choosing Ever-power Australia Mower Gearbox Co.,Ltd. means partnering with a manufacturer that understands agricultural machinery from the ground up. Our R&D team develops 14 new gearbox models each year, collaborating directly with implement OEMs in Australia, Germany, the United States, Brazil, and beyond. Whether you need a standard catalog gearbox shipped next week or a fully custom design with unique ratios and mounting interfaces, we deliver — on specification, on budget, and on time.

eje de transmisión de la toma de fuerza

📞 Get Your EP-GS4RC Quote Today

Upgrade from unreliable aftermarket gearboxes to the proven EP-GS4RC. Our team is ready to provide datasheets, cross-reference guides, and a no-obligation quotation within 24 hours.

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