| Technische parameter<\/th>\n | Specificatie \/ Waarde<\/th>\n | Eenheid \/ Context<\/th>\n<\/tr>\n<\/thead>\n |
|---|---|---|
| Step-Up Ratio<\/td>\n | 1:3.0 \/ 1:3.5 \/ 1:3.8<\/td>\n | Increaser Ratio<\/td>\n<\/tr>\n |
| Aftakastoerental<\/td>\n | 540<\/td>\n | RPM (Standaard)<\/td>\n<\/tr>\n |
| Output Speed (Pump)<\/td>\n | 1620 – 2052<\/td>\n | RPM (Optimized)<\/td>\n<\/tr>\n |
| Max Input Power<\/td>\n | 25 – 60<\/td>\n | kW<\/td>\n<\/tr>\n |
| Maximale uitvoerkoppel<\/td>\n | 150 – 450<\/td>\n | Nm<\/td>\n<\/tr>\n |
| Spline invoeren<\/td>\n | 1-3\/8″ Z6 (Female\/Male)<\/td>\n | DIN 9611<\/td>\n<\/tr>\n |
| Pump Mounting Flange<\/td>\n | SAE A \/ SAE B<\/td>\n | Standard Interface<\/td>\n<\/tr>\n |
| Internal Pump Shaft<\/td>\n | Splined or Tapered<\/td>\n | Coupling Type<\/td>\n<\/tr>\n |
| Materiaal tandwiel<\/td>\n | 20CrMnTi Legeringsstaal<\/td>\n | Carburized HRC60<\/td>\n<\/tr>\n |
| Huisvestingsmateriaal<\/td>\n | Aluminum ADC12 \/ Cast Iron<\/td>\n | Thermal Dissipation<\/td>\n<\/tr>\n |
| Oliecapaciteit<\/td>\n | 0.35 – 0.8<\/td>\n | Liters<\/td>\n<\/tr>\n |
| Smeertype<\/td>\n | SAE 90 \/ ISO VG 150<\/td>\n | Gear Oil<\/td>\n<\/tr>\n |
| Gewicht<\/td>\n | 5.0 – 12.0<\/td>\n | Kg<\/td>\n<\/tr>\n |
| __OPENROUTER_FAILED__<\/td>\n | Universal (Quick Hitch)<\/td>\n | Installatie<\/td>\n<\/tr>\n |
| Bedrijfstemperatuur<\/td>\n | -20\u00b0C to +90\u00b0C<\/td>\n | Omgevings<\/td>\n<\/tr>\n |
| Afichtingstype<\/td>\n | Dubbele Lip NBR\/Viton<\/td>\n | Stofbestendig<\/td>\n<\/tr>\n |
| Geluidsniveau<\/td>\n | ongeveer 85<\/td>\n | dB(A)<\/td>\n<\/tr>\n |
| Dienstfactor<\/td>\n | 1.5 – 2.0<\/td>\n | Zware uitvoering<\/td>\n<\/tr>\n |
| Effici\u00ebntie<\/td>\n | 95% – 98%<\/td>\n | Transmissie<\/td>\n<\/tr>\n |
| Garantie<\/td>\n | 18 Months<\/td>\n | Standaard<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
2. The Hydraulic Heartbeat: Why Front Loaders Demand Specialized Gearbox Drives<\/h2>\nIn the immense scale of Brazilian agriculture, the Front End Loader (FEL)<\/strong> is the universal workhorse. From loading lime (calc\u00e1rio) in the Cerrado to handling sugar cane bagasse in S\u00e3o Paulo’s mills, these machines require immense hydraulic flow to operate efficiently. However, standard tractor internal hydraulic systems often lack the flow rate (LPM) necessary for rapid cycle times, resulting in sluggish bucket performance and reduced productivity. This is where Kern Agrarisch<\/strong> steps in with our specialized landbouwversnellingsbak<\/strong> series designed specifically as PTO Speed Increasers. These gearboxes mount directly to the tractor’s rear PTO shaft (540 RPM) and step up the speed to drive high-performance hydraulic pumps (typically SAE A or B flange) at 1500-3000 RPM. This conversion is critical: it transforms mechanical rotary power into the fluid power that lifts tons of fertilizer, feed, or biomass with effortless speed.<\/p>\n Our gearboxes are not mere adapters; they are engineered for the grueling “Stop-and-Go” duty cycle of loader work. A front loader operator in Brazil might cycle the hydraulics 500 times a day, creating constant pressure spikes and shock loads on the drivetrain. Agrinulear gearboxes feature case-hardened alloy steel gears (20CrMnTi) with optimized tooth profiles to handle these sudden torque reversals without pitting or shearing. Furthermore, understanding the tropical heat of Brazil, our housings are cast from high-grade aluminum alloy (ADC12) or ductile iron, designed with extensive ribbing to dissipate the heat generated by the hydraulic pump connection. By ensuring your hydraulic system runs cooler and faster, we directly contribute to shortening the operational windows during the critical planting and harvest seasons.<\/p>\n <\/p>\n A front loader’s performance is fundamentally limited by the hydraulic flow it receives. Most older or utility tractors in Brazil have internal hydraulic pumps rated at only 30-40 liters per minute (LPM), which results in painfully slow cycle times when lifting heavy loads. The landbouw tandwielkast<\/strong> solution provided by Agrinulear bypasses this limitation. By mounting a step-up gearbox to the rear PTO, we allow the operator to install a large external hydraulic pump (up to 80-100 LPM). The gearbox acts as a “Velocity Multiplier.” Inside the housing, a large input gear connected to the PTO shaft drives a smaller output gear. This ratio (typically 1:3.8) accelerates the standard 540 PTO RPM to over 2000 RPM, which is the optimal operating speed for high-efficiency gear pumps.<\/p>\n This mechanism does more than just speed up the bucket. It separates the loader’s hydraulic circuit from the tractor’s internal transmission fluid. This is crucial in Brazil where transmission oils can overheat in tropical conditions. By having a dedicated tank and pump system driven by our aftakasoverbrenging<\/strong>, the loader maintains consistent breakout force and lifting speed even when the tractor’s transmission is hot. The gears themselves are shaved and ground to ensure quiet operation, reducing the acoustic fatigue on the operator who sits just meters away from the drivetrain. This setup transforms a standard farm tractor into a dedicated material handling machine capable of competing with specialized industrial wheel loaders.<\/p>\n <\/p>\n The Brazilian agricultural frontier, particularly the “Cerrado” region, presents a unique set of challenges for mechanical components. The soil is acidic and abrasive, and the dust generated during the lime spreading season (Calagem) is incredibly fine. A standard gearbox breather can easily clog, leading to internal pressure build-up and seal failure. Agrinulear landbouwfabrikant<\/strong> engineers have adapted our Front Loader Gearboxes with “Tropicalized” features. We utilize a sintered bronze breather vent that filters out the red clay dust while allowing the gearbox to “breathe” as it heats up. Our output seals are upgraded to Viton (FKM), which can withstand higher operating temperatures and is resistant to the chemical aggression of fertilizers and herbicides commonly handled by these loaders.<\/p>\n Additionally, the duty cycle in Brazil is intense. During the soybean planting window, tractors and loaders often run 24 hours a day. Continuous operation generates significant heat in the hydraulic system. Our gearbox housings feature extended cooling fins that increase the surface area by 30%, promoting passive air cooling. This ensures that the gear oil maintains its viscosity, protecting the gear teeth from metal-to-metal contact even when the ambient temperature in Mato Grosso exceeds 40\u00b0C. This specific adaptability ensures that your loader doesn’t fade or lose power in the middle of a critical operational window.<\/p>\n Brazil has a diverse market of farm machinery, mixing global giants with strong local manufacturers. Agrinulear Nucleo Agro gearboxes are designed to be the universal power source for front loader attachments across all major brands. Whether you are retrofitting an old tractor or upgrading a new fleet, our PTO drive boxes provide the necessary hydraulic power. We offer specific compatibility solutions for:<\/p>\n Disclaimer:<\/strong> All original equipment manufacturer (OEM) names, trademarks, and model references (e.g., Tatu, Baldan, Valtra) are solely for identification and compatibility reference purposes. Agrinulear Nucleo Agro is an independent manufacturer and is not affiliated with or endorsed by these brands.<\/p>\n <\/p>\n The operation of Front End Loaders involves significant risks, including falling loads and hydraulic failure. In Brazil, NR-12<\/strong> (Safety in Machinery and Equipment) sets strict standards to mitigate these risks. Agrinulear gearboxes contribute to a safer working environment by enabling the use of high-quality, independent hydraulic systems that can be fitted with anti-drop valves and load-holding check valves (which require stable flow to operate correctly). Unlike relying on a tractor’s worn internal pump, a dedicated PTO-driven system ensures consistent pressure to safety devices. Furthermore, our gearboxes come with fully enclosed PTO shaft guards and safety decals in Portuguese, helping farm owners meet the rigid inspection criteria of the Ministry of Labor.<\/p>\n <\/p>\n “Handling bagasse requires speed. The factory tractor’s hydraulics were too slow. Installing the Agrinulear 1:3.8 gearbox with a 60L pump doubled our cycle speed. We moved 30% more biomass per shift.”<\/p>\n – Maintenance Chief, Carlos M.<\/span><\/p>\n<\/div>\n “Dust is the enemy here. Standard gearboxes leak after a month. Agrinulear’s sealed unit with the sintered breather kept the oil clean through the entire 3-month liming season. No seal failures.”<\/p>\n – Farm Manager, Andre L.<\/span><\/p>\n<\/div>\n “We needed to retrofit older Valtra tractors for seed loading. The Agrinulear PTO kit was plug-and-play. It gave new life to our old fleet, saving us from buying expensive new telehandlers.”<\/p>\n – Contractor, Jorge R.<\/span><\/p>\n<\/div>\n “Mixing feed wagons and loading silage puts a huge strain on the PTO. The case-hardened gears in this box handle the shock loads when we hit frozen silage chunks. Very robust construction.”<\/p>\n – Feedlot Operator, Sofia B.<\/span><\/p>\n<\/div>\n |
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