Descrição
EP-700 Series Agricultural Machinery Gearbox — Heavy-Duty Bevel Drive for Large Field Implements
1. Technical & Performance Specifications
Twenty core specifications for the EP-700 Series are listed below. These values reflect actual engineering limits that our OEM partners use when integrating the gearbox into their baler, cutter, tiller, or irrigation-pump assemblies. Use this table as your primary reference when evaluating the unit for purchase, agricultural machinery gearbox installation, or spare-parts planning.
| Parameter | Specification |
|---|---|
| Modelo | EP-700 Series |
| Gearbox Type | Right-Angle Bevel Gearbox |
| Gear Design | 12-Tooth Pinion / 35-Tooth Gear, Forged Straight Bevel |
| Relação de Engrenagem | 2.92:1 (standard) |
| Material de Construção | Two-Piece Aluminum Alloy, CNC Machined |
| Material do Eixo | High-Strength Alloy Steel (42CrMo grade) |
| Diâmetro do Eixo de Entrada | 1.75 inch (44.5 mm) |
| Output Shaft Diameter | 2.75 inch (69.9 mm) |
| Tipo de Rolamento | Heavy-Duty Tapered Roller Bearings |
| Max Continuous Input Power | 132.30 kW (177.41 HP) at 1000 RPM |
| Rated Input Power at 540 RPM | 88.93 kW (119.25 HP) |
| Velocidade Máxima de Entrada | 1000 RPM |
| Torque de Saída Máximo | 5,994 Nm (at 100 input RPM) |
| Output Torque at 540 RPM | 4,586 Nm |
| Lubricant | 80W90 GL-5 Gear Oil (Factory Filled) |
| Sealing | Double-Lip Oil Seals, Pressure Leak-Tested |
| Net Weight (with oil) | ~120 lb / 54.4 kg |
| Faixa de temperatura operacional | -25°C to +100°C |
| External Dimensions (L×W×H) | 340 mm × 270 mm × 295 mm |
| Garantia | 12 Months from Date of Shipment |
2. Performance Curve — Torque & Power in SI Units
The 2.92:1 ratio of the EP-700 Series produces the power and torque curve shown below. For a Brazilian operator running a 120 HP tractor at the standard 540 RPM PTO, the gearbox delivers roughly 4,586 Nm at the output flange — more than enough headroom for a 3-meter rotary cutter or a large round baler. OEMs engineering new implements should use these figures when sizing chain drives, output pulleys, and downstream clutches.
| Razão | Gear Design | Metric | 100 RPM | 540 RPM | 1000 RPM |
|---|---|---|---|---|---|
| 2.92:1 | 12 / 35 Bevel | Input kW | 21.52 | 88.93 | 132.30 |
| 2.92:1 | 12 / 35 Bevel | Input HP | 28.86 | 119.25 | 177.41 |
| 2.92:1 | 12 / 35 Bevel | Output Torque (Nm) | 5,994 | 4,586 | 3,685 |
| 2.92:1 | 12 / 35 Bevel | Output Torque (in-lbs) | 53,051 | 40,594 | 32,612 |
| 2.92:1 | 12 / 35 Bevel | Output RPM | 34 | 185 | 342 |
3. What Is an Agricultural Machinery Gearbox — And Why Size Matters
A gearbox for agricultural machinery is the mechanical translator that sits between a tractor’s Power Take-Off and the working element of an implement. Its job is three-fold — redirect the rotation axis by 90 degrees, change the shaft speed by a specified ratio, and multiply torque to match the work the tool actually has to perform. Small implements can run on compact drives, but once a farmer moves into heavy silage cutting, cane harvesting, or broad-acre rotary shredding, the duty cycle demands a robust unit like the EP-700 Series. Answering the textbook question of what is an agricultural machinery gearbox is easy — answering which size fits a given implement requires understanding rated torque, peak torque, service factor, and bearing L10 life, all of which are detailed below.
Brazilian farm engineers often ask whether a 100-series drive can be “upsized” for a larger implement. The honest answer is no — you either match a large implement to a high-capacity agricultural machinery gearbox like the EP-700 from day one, or accept shortened service life on the smaller unit. The 700 Series was designed from a clean sheet around a 2.92:1 ratio with 12- and 35-tooth forged bevel gears, sized precisely for the 100–180 HP power band that dominates Brazilian mid-large farming operations.
4. Five Key Advantages of the EP-700 Series
1. Heavy-Duty Torque Capacity
At 100 input RPM, the 700 Series delivers up to 5,994 Nm of output torque — a figure that keeps chopper drums and baler plungers running through the toughest windrows a Brazilian cattle operation will throw at them.
2. Precision-Forged 2.92:1 Bevel Set
The 12/35 tooth forged straight-bevel ratio gives a torque-multiplication factor suited to heavy tillers and big round balers, with gear flanks that are carburized, quenched, and profile-ground for maximum contact fatigue life.
3. Robust Tapered Roller Bearings
Oversized tapered roller bearings on both input and output shafts support the thrust loads generated by the large bevel set and extend the practical L10 life of this agricultural machinery gearbox well beyond 10,000 operating hours.
4. Factory-Sealed & Leak Tested
Every unit arrives pre-filled with 80W90 GL-5 gear oil and leak-tested on a pressurized fixture, so the farmer or OEM assembler does not need to source lubricant or second-guess seal integrity before field commissioning.
5. Oversized Shafts for Direct Coupling
A 1.75-inch input shaft and 2.75-inch output shaft — both in high-tensile alloy steel — provide the torsional cross-section required for heavy-implement direct couplings, eliminating the need for intermediate torque converters in most installations.
5. Working Principle
A agricultural machinery gearbox working principle inside the EP-700 Series follows a straight-bevel reduction architecture scaled up for heavy torque. Rotational energy from the tractor PTO enters through the 1.75-inch input shaft, where a 12-tooth forged bevel pinion engages at right angles with a 35-tooth output bevel gear. The tooth count produces a mechanical advantage of 2.92:1, meaning that for every 2.92 turns of the input shaft, the output shaft completes one full rotation — and the available torque is multiplied by the same factor, minus a small gear-mesh loss typically under 3%.
Inside the aluminum housing, splash lubrication carries 80W90 oil up into the mesh zone on every gear rotation, flooding the tooth flanks with film strength and carrying frictional heat out to the housing walls. Tapered roller bearings absorb the strong axial thrust produced by bevel-gear action, keeping shaft alignment within tolerance even under peak load. This complete agricultural machinery gearbox operation cycle repeats thousands of times per minute during a sugarcane shift or a baling run, silently converting tractor horsepower into usable torque at the tool.
6. Material & Construction Detail
Material selection in the EP-700 Series reflects the heavy-duty mission profile. The two-piece housing is cast from aluminum alloy and then CNC-machined on a coordinate-controlled line, which delivers gear-center distance tolerance within ±0.02 mm and bearing bore roundness within ISO IT6. Aluminum was chosen over cast iron for a simple reason — the thermal conductivity is almost three times higher, which means the gearbox sheds mesh-generated heat into the airstream far faster during 8-hour cane-cutting shifts under the Mato Grosso sun. The alloy also shrugs off the salt-spray corrosion that coastal Brazilian farms deal with in states like Bahia and Pernambuco.
Internally, the bevel gears are forged from 20CrMnTi carburizing steel, then heat-treated to a surface hardness of 58–62 HRC with a case depth of 0.8–1.2 mm, and finally profile-ground on a Gleason-style machine. Both input and output shafts are turned from 42CrMo through-hardened alloy, keyed to standard SAE dimensions for easy agricultural machinery gearbox installation. Bearings are premium-grade tapered rollers selected for a calculated L10 life exceeding 10,000 hours under rated load. The result is an agricultural machinery gearbox built to survive the longest Brazilian harvest seasons without unscheduled downtime.
7. Application Scenarios
The EP-700 Series is specified into high-load implements where output torque above 4,000 Nm is required. The most common agricultural machinery gearbox application contexts among our Brazilian distributors are summarized in the panels below.
Large Round Balers
Pasture co-operatives in Goiás and Minas Gerais running 1.5-meter variable-chamber balers behind 120–150 HP tractors rely on the 700 Series to drive the pickup and compaction rollers. The 2.92:1 reduction keeps the plunger force inside design limits even when baling heavy Brachiaria windrows.
Sugarcane Harvester Feed Drives
Brazilian cane operators in São Paulo and Goiás use the EP-700 as the primary feed-roller gearbox in cane-harvester retrofits. The high output torque ensures consistent stalk advance even when the crop lodges or stands over 3 meters tall in fertile Cerrado soils.
Heavy Rotary Cutters & Shredders
For clearing cerrado brush or post-harvest sugarcane stubble, 2.4–3.0 meter rotary shredders demand torque figures the 700 Series delivers. This makes it a default choice for land-preparation contractors who operate across multiple municipalities per week.
Broad-Acre Rotary Tillers
Vegetable and irrigated-row-crop producers in Bahia’s São Francisco valley use heavy 2.5-meter tillers driven by 140 HP tractors. The EP-700 gearbox serves as the central input reducer feeding the side-chain transmission that spins the tine rotor.
Irrigation Pump Drives
PTO-driven centrifugal pumps used for rice-field flooding in Rio Grande do Sul pair the 700 Series with large stationary pump ends. The 342 RPM output at 1000 PTO RPM is well matched to high-flow agricultural pump impeller design.
Forage Wagons & TMR Mixers
Dairy cooperatives in Santa Catarina feed this gearbox for agricultural machinery into TMR mixer wagons where the output drives the twin-auger mixing screws. Heavy forage silage at 35% moisture is no challenge for the 4,586 Nm rated output.
8. Regional & International Regulatory Compliance
Because a heavy-duty agricultural machinery gearbox becomes part of an implement that moves across international borders, compliance is engineered into the 700 Series at the drawing stage rather than patched in at shipment.
Brazil: The EP-700 is designed to support OEM compliance with ABNT NBR ISO 4254-1 (agricultural machinery safety), NR-12 (Regulatory Norm No. 12 on machine and equipment safety issued by the Ministry of Labor), and INMETRO conformity-assessment requirements for products circulating in the domestic market. Implements targeting BNDES Finame agricultural-credit lines receive a complete technical file including material certificates, dimensional reports, and a declaration of conformity. IBAMA environmental regulations are respected through the RoHS-compliant lubricant package used at the factory-fill stage.
Other Regions: European OEMs use the unit inside CE-marked implements under Machinery Directive 2006/42/EC and EN ISO 4254-1. In the United States, compliance is aligned with ANSI/ASABE S318 for PTO guarding and OSHA 1928.57. For Argentina and Paraguay, IRAM standards and Mercosur harmonized technical regulations apply. Australia references AS/NZS 4024. Canada aligns with CSA M.9 standards. Our quality management system is certified to ISO 9001:2015, and environmental impact is managed under ISO 14001. These agricultural machinery gearbox manufacturers credentials open doors across all major farming markets.
9. About Us
Our core competence is the complete in-house production cycle — from gear-blank forging and heat treatment to CNC machining, gear grinding, housing casting, assembly, and pressure leak testing. The engineering team includes senior mechanical engineers with 15+ years of focused experience in bevel-gear design, supported by a metrology lab equipped with three-coordinate measuring machines, gear profile checkers, and hardness testers. Quality is certified to ISO 9001:2015, environmental management to ISO 14001, and occupational safety to ISO 45001.
WorkShop
10. Related Products — Complete Farm-Drive Package
The EP-700 is the backbone of a broader drive-line ecosystem. We also produce PTO shafts and electric motors engineered to couple directly with our bevel gearboxes, giving Brazilian OEMs and farmers a single-supplier route for the entire drive. One-stop sourcing means consistent lead times, matching flanges, and simplified agricultural machinery gearbox parts inventories.
PTO Shaft for Heavy Implements
Our PTO Shaft product range covers 1-3/8 inch 6-spline, 1-3/8 inch 21-spline, and 1-3/4 inch 20-spline configurations with friction or shear-bolt overload protection. Direct fit onto the 1.75-inch input of the EP-700 means a farmer in Brazil can order both the agricultural machinery gearbox kit and the drive shaft in a single purchase order without compatibility guesswork.
Heavy-Duty Electric Drive Motors
For stationary feed-preparation and irrigation-pump applications, our three-phase motor range from 7.5 kW to 37 kW flange-mounts directly to EP-700 housings. This allows a farm workshop to convert a PTO-driven implement into a continuous-duty electric unit without redesigning the core agricultural machinery gearbox design.
Frequently Asked Questions
Q1. How does the agricultural machinery gearbox working principle differ between a small tedder unit and the EP-700?
A2. Both use right-angle bevel sets, but the EP-700 uses a 2.92:1 reduction with 12- and 35-tooth forged gears, where a tedder unit uses a 1:1 or 1:1.43 pass-through ratio. The 700 Series multiplies torque by nearly three — suited to heavy cutting and baling — while the tedder unit is speed-dominated for light fluffing duty.
Q2. Which agricultural machinery gearbox installation steps are critical when retrofitting a heavy rotary cutter?
A4. Verify mounting-surface flatness within 0.05 mm, torque the four retaining bolts in a cross pattern to 120 Nm, check input shaft alignment with a dial indicator to under 0.08 mm runout, confirm oil level via the sight plug, and run the implement unloaded for 15 minutes before first field use to bed-in the bevel mesh.
Q3. What is an agricultural machinery gearbox service factor and why does it matter for sugarcane work?
A5. The service factor is the ratio of peak allowable torque to rated torque. For sugarcane harvesters operating in dense lodged crops, shock loads can spike to 1.5× rated torque momentarily. The EP-700 is rated at a service factor of 1.75, which leaves enough headroom for Brazilian cane conditions without derating.
Q4. Which agricultural machinery gearbox for sale in Brazil best matches a 150 HP tractor running a 3-meter shredder?
A6. The EP-700 Series is the direct fit. At 540 RPM PTO the unit absorbs up to 88.93 kW and delivers 4,586 Nm at the output flange, which suits a 3-meter heavy-duty rotary shredder on a 150 HP tractor with about 15% reserve capacity for dense stubble loads.
Q5. How often should a Brazilian farmer change the lubricant in an agricultural machinery gearbox?
A7. Inspect oil level every 50 working hours, perform a full lubricant change after the first 100 hours (break-in drain), then every 500 hours or once per harvesting season thereafter. Use 80W90 GL-5 gear oil. In dusty Cerrado environments, inspect shaft seals every 100 hours for signs of grit ingress.
Q6. When should an OEM request a custom quote instead of a standard EP-700 agricultural machinery gearbox?
A8. Request a custom quote when your implement needs a non-standard flange bolt pattern, a metric output shaft diameter, a modified gear ratio outside the 2.92:1 standard, or special surface coatings for coastal or high-humidity duty. Our engineering group turns a custom drawing package around in about seven working days.
Q7. What agricultural machinery gearbox parts are most commonly ordered as spares for the 700 Series?
A9. The top three spare lines are double-lip oil seals for both shafts, tapered roller bearing kits for preload replacement, and the complete 12/35 tooth forged bevel gear set. We maintain a stock quantity that supports typical 3-week lead time to São Paulo or Paranaguá ports.
Q8. Which agricultural machinery gearbox application fits a 1000 RPM stationary irrigation pump in Rio Grande do Sul?
A11. The EP-700 operated at 1000 RPM input delivers a 342 RPM output shaft speed, which suits large-flow centrifugal pump impellers handling rice-field flood irrigation. The 132 kW continuous input rating supports 150 HP diesel engines driving pumps on floodplains.
Editor: PXY
