Описание
Specifications of Agricultural Sprayer Gearbox D27A/D27J/D27B
D27A
| я | Н1[об/мин] | П1[кВт] | М2[Нм] | Тип вала |
Вход | |
Х |
З |
|||||
| 4.00 5.25 |
540 | 22.1 | 1” 3/8 Z6 | Х | ||
| 3.70 4.80 |
540 | 22.1 | – | 1” 3/8 Z6 | ?L250 35 | Х |
| 3.70 4.40 |
540 | 22.1 | – | 1” 3/8 Z6 | L117 35 | Х |
| 2.95 4.00 |
540 | 22.1 | 1” 3/8 Z6 | Х | ||
D27J/D27B
| я | Н1[об/мин] | П1[кВт] | М2[Нм] | Тип вала |
Вход | |
| Х |
З |
|||||
| 4.00 5.25 |
540 | 22.1 | – | 1” 3/8 Z6 | L200 ??30 | Х |
| 3.69 4.36 |
540 | 22.1 | – | 1” 3/8 Z6 | ?L253 40 | Х |
| 2.95 4.00 |
540 | 22.1 | – | 1” 3/8 Z6 | L200 40 | Х |
| 2.95 4.00 |
540 | 22.1 | – | 1” 3/8 Z6 | L250 40 | Х |
Обзор продукта
The sprayer gearbox is the heart of any self-propelled or tractor-mounted boom sprayer, quietly handling the tough job of transferring smooth, reliable power from the PTO straight to the spray pump. Popular models from brands like Omni Gear, Comer, and Bondioli – think T-series or L-series – typically run reduction ratios from 1:1.35 up to 1:2.78, with input speeds of 540-1000 rpm and output power ranging 30-80 hp. That’s more than enough muscle for large-scale corn, wheat, soybean, or rice fields across North America, South America, Europe, and Australia.
Built to last, the housing is usually high-strength ductile cast iron or aircraft-grade aluminum, while the internal gears go through carburizing and quenching to hit HRC58-62 hardness. Real-world feedback from growers shows these boxes easily exceed 5,000 hours of service life. With IP68 sealing, they shrug off mud, fertilizer splash, and dust without leaking a drop. Many dealers tell us that swapping in a quality aftermarket sprayer gearbox boosts spray uniformity by over 15% and cuts pump failures by nearly 40%.
Installation is straightforward: line up the PTO spline, bolt on the 6-hole or 8-hole flange, and you’re done in about 20 minutes. The built-in centrifugal clutch automatically slips if the pump hits a sudden overload – a small feature that saves big headaches during those long days in Brazilian soybean fields or Australian pasture runs.
Advantages of Agricultural Sprayer Gearbox
The sprayer gearbox is the unsung hero in modern crop protection, delivering steady speed and pressure to the pump so you can cover big acres fast and clean. Here’s why so many North American, Brazilian, and European dealers tell us their customers refuse to go back to OEM once they’ve tried a solid aftermarket unit.
- Real jump in field efficiency Most popular ratios sit between 1:1.9 and 1:2.3, dropping 540 rpm PTO down to the 280-320 rpm most pumps love. With an 80-120 ft boom, that translates to 800-1,200 acres a day without breaking a sweat. Brazilian growers clocked an average 12% shorter workday per season and about 8% less fuel burn.
- Tighter spray pattern, less waste Rock-steady output keeps pump pressure swing under ±3%, giving droplet sizes right in the 150-250 micron sweet spot. Field trials show drift loss drops 18%, saving 2-3 liters of chemical per hectare. One European dealer put it bluntly: “After one season the chemical bill drops enough that the gearbox pays for itself.”
- One box fits almost everything 6-bolt or 8-bolt flange, 1-3/8″ 6-spline shaft – it bolts straight onto John Deere, Case IH, Hardi, Amazone, you name it. Switching from corn to wheat season? Swap the pump-side adapter and you’re back in the field in ten minutes. No need to stock multiple gearboxes.
- Built for the nastiest conditions Ductile cast-iron housing, carburized gears at HRC58-62, double-lip seals plus a breather valve for true IP68 protection. Australian ranchers run them three straight years in 104 °F heat and red-dust clouds with zero leaks or replacements. Stateside dealers just say: “We give five-year warranties without blinking.”
Bottom line: a good sprayer gearbox saves fuel, saves chemical, saves time, and laughs at mud, dust, and heat. Want the latest compatibility chart, power curves, or a sample to test on your own rig? Just shoot us your machine model – we’ll have the perfect sprayer gearbox match back to you within 24 hours.
How Does the Agricultural Sprayer Gearbox Work?
The agricultural sprayer gearbox is a critical component used in the operation of a sprayer, which is essential for distributing liquid treatments like pesticides, herbicides, and fertilizers over crops. Here??s an overview of how this gearbox works within the setup of an agricultural sprayer:
- PTO clicks in, spin starts You slide the 1-3/8″ 6-spline shaft into the input side, fire up 540 or 1000 rpm, and power’s in the box. Spline wear stays under 0.5 %—line it up once at the start of the season and you’re usually good till winter.
- Gears slow it down, crank up the twist Two-stage helical or a single planetary set—ratios you see most are 1:1.9, 1:2.1, 1:2.78—drop that high-rpm whip into the 280-350 rpm sweet spot most diaphragm and centrifugal pumps love. Steady 40-60 bar at the boom tips, droplet size stays perfect, coverage jumps a full grade.
- Centrifugal clutch saves your bacon Over 85 % of boxes ship with one. Pump locks or every nozzle clogs at once? Clutch slips in under a second, instantly disconnects the gearbox from the PTO. Aussie crews swear it’s saved them three driveshafts a year—$2,000 repairs gone, just like that.
- Clean power straight to pump (and fan) Output shaft bolts to the pump through a 6- or 8-bolt SAE flange. Air-blast rigs get a second stub for the fan. Speed wobble stays under ±2 %, so a 120 ft boom holds pressure within 3 bar end-to-end. Real-world drift tests show 18 % less chemical floating away.
- Smart boxes shift themselves Newer Hardi and Amazone rigs in Europe run electromagnetic two-speed sprayer gearboxes. Hit 20-30 km/h and the ECU kicks it into low for fuel savings; stop spraying and it snaps back to high so you don’t leave chemical in the tank.
Common Troubleshooting of Agricultural Sprayer Gearbox
Troubleshooting an agricultural sprayer gearbox is essential for maintaining its efficiency and prolonging its operational life. Here are some common issues that may arise with sprayer gearboxes, along with suggested troubleshooting steps:
- Grinding or shaking Eight times out of ten it’s low oil or dry bearings. Drain it, look for glitter—if it’s just a little, top up; if it looks like a disco ball, swap the bearing kit. Comer OEM kit runs about $180 and you’re done in 30 minutes.
- Leaking oil Double-lip seals harden first. New seals + 85W-140 GL-5 that laughs at fertilizer, leak stops same day. Pro tip: keep the breather valve clear or heat will still push oil out the sides.
- Running hot Black oil or low oil = change it. Do it every 400 hours and you’re bulletproof. Overloaded? Drop pump pressure 5 bar and case temp falls 15 °C instantly. Brazilian guys run 104 °F days, 12-hour shifts, no sweat.
- Weak or wavy spray Check output spline for rounding first. If it’s polished smooth, new shaft. Actual gear damage almost never shows up before 8,000 hours—most U.S. users hit 12,000 before the first tooth job.
- Hard to shift (older manual boxes) Shift fork wear or thick oil. Switch to 80W-90 and it slides like new in ten minutes.
- Zero power to the pump Ninety-nine times out of a hundred it’s a rounded PTO spline or a snapped U-joint cross. Fix those two things before you pull the lid—saves an hour of swearing.
PTO Shafts for Agricultural Sprayer Gearbox
The PTO shaft is the lifeline that feeds steady power straight into your sprayer gearbox—and a solid one cuts early failures by roughly 80%. Our PTO shafts for agricultural sprayer gearbox are built to full ASABE and ISO 5675 specs, and dealers across North America, Europe, and South America bolt them onto John Deere, Case IH, Hardi, and Amazone rigs with zero come-backs.
Shaft tubing is ST52 cold-drawn seamless steel, 1.8-2.2 mm wall, rated 650-1850 Nm torque—plenty for 30-150 hp tractors running 540 or 1000 rpm. Standard lengths run 900-2000 mm with on-site cut-to-fit, 250-400 mm telescoping travel, so whether you’re on a low-profile tractor or a high-clearance sprayer, you get zero ground drag and zero canopy rub.
Universal joints start as 40Cr forged blanks; cross journals get carburized and quenched to HRC58-62 with four-row needle bearings. Real-world numbers show less than 0.25 mm runout after 8,000 hours. Lemon-to-square profiles use the same wide-angle cold-rolled process Lemken trusts—35° articulation without a hiccup, even when you’re whipping a 120 ft boom around a pivot.
Safety shields are one-piece high-impact polypropylene, CE and GS marked, with built-in anti-rotation chains and spring-back collars. Ranchers in Australia have run them four seasons through rocks and dust and the guards still look factory-fresh. Both ends carry Bondioli-style quick-lock yokes—1-3/8″ 6-spline or 21-spline push-and-click, one-handed hookup in 30 seconds flat, no whip, no fuss.
Grease-and-go maintenance: hit the NLGI 2 lithium fittings every 50 hours (one on each cross, one on the slide) and you’re done in ten seconds. An Illinois dealer tracked a batch of our shafts—average life hit 11.5 years before the first replacement, miles ahead of the industry’s 8-year norm.
We Also Offer Other Agricultural Gearboxes
We also offer other types of agricultural gearboxes, such as rotary cutter gearboxes, fertilizer spreader gearboxes,?lawn mower gearbox, post hole digger gearboxes, rotary tiller gearboxes, corn headers gearboxes, fertilizer seeder gearboxes, feed mixer gearboxes, flail mower gearboxes, square baler gearboxes,?round baler gearboxes, grader-driven rake gearboxes, universal gearboxes, irrigation reels gearboxes, manure spreader gearboxes, rotary rake gearboxes, gearbox for hay tedders, etc.
Our technical staff can reconfigure an existing design or assist you in designing a custom agricultural PTO gearbox if a standard or existing design does not fit your application. Shaft rotation, speed ratio, design type, load nature, mounting position, and the application??s environment are all considerations when choosing an agricultural gearbox. We offer a wide range of agricultural gearboxes and PTO shafts for different applications. If you want to buy agricultural gearboxes, please get in touch with us.
Agricultural Sprayer Gearbox Manufacturer
HangZhou Ever-Power Transmission specializes in the production of a wide range of mechanical and hydraulic transmission products, including planetary gearboxes, worm gear reducers, inline helical gear reducers, parallel shaft helical gear reducers, helical bevel gear reducers, helical worm gear reducers, agricultural gearboxes, tractor gearboxes, automotive transmissions, power output shafts, custom reducers, and various other gear components. Additionally, we offer products such as sprockets, vacuum pumps, hydraulic couplings, rack and pinion chains, timing pulleys, UDL transmissions, V-pulleys, hydraulic cylinders, gear pumps, screw air compressors, shaft ring low-backlash worm gear reducers, and more.
We also provide tailor-made solutions for transmissions, gear motors, electric motors, and other hydraulic equipment, based on customer specifications and drawings.
With our state-of-the-art inspection and testing equipment, we ensure the highest quality standards for all our products. Our professional technical team, advanced manufacturing processes, and rigorous quality control systems underpin our commitment to excellence. Over the years, we have experienced rapid growth, fueled by our extensive production expertise, robust management systems, standardized practices, and strong technical capabilities. At Ever-Power Transmission, we remain focused on quality as the foundation of our success, while embracing technological innovation for continuous development.
Часто задаваемые вопросы
What makes the Agricultural Sprayer Gearbox durable and reliable for heavy-duty use?
The Agricultural Sprayer Gearbox is built with high-strength ductile cast iron or aircraft-grade aluminum housing, and internal gears undergo carburizing and quenching to achieve a hardness of HRC58-62. These features, combined with IP68 sealing, ensure the gearbox performs reliably in harsh conditions like mud, dust, and fertilizer splashes. With an expected service life exceeding 5,000 hours, it provides long-lasting durability even in demanding agricultural environments.
How does the centrifugal clutch in the sprayer gearbox work?
The centrifugal clutch in the Agricultural Sprayer Gearbox automatically disengages if the pump encounters an overload. This prevents damage to the gearbox and other components, such as when the pump locks or nozzles clog. This feature is especially useful in preventing costly repairs, as it disconnects the gearbox from the PTO, ensuring that issues like pump failure or overloading don’t lead to major breakdowns.
Can I install the sprayer gearbox myself?
Yes, the sprayer gearbox is designed for easy installation. To install, simply align the PTO spline with the gearbox and bolt it on using the 6-hole or 8-hole flange. The process typically takes about 20 minutes, making it a straightforward installation for farmers and operators without the need for specialized equipment.
What type of maintenance does the Agricultural Sprayer Gearbox require?
Maintenance for the sprayer gearbox is minimal. It’s recommended to check and top up the oil regularly, especially if you notice any grinding or unusual noise. The gearbox is equipped with double-lip seals and a breather valve, ensuring that it remains sealed under tough conditions. Regular greasing of the PTO shaft and checking for any wear in the components will help maintain optimal performance and extend the gearbox’s service life.
Отзывы клиентов
⭐⭐⭐⭐⭐
Carlos Martinez, Operations Manager, AgriTech Solutions, Mexico
We recently swapped out our old sprayer gearbox for the Agricultural Sprayer Gearbox D27A, and honestly, it’s been a great decision. The install was simple, and it’s been running smoothly ever since. We’ve noticed less downtime, and the power delivery is much more consistent now. Definitely a solid upgrade!
⭐⭐⭐⭐
Anna Johansson, Farm Supervisor, GreenFields Agriculture, Sweden
The D27J sprayer gearbox has been a reliable upgrade for our equipment. It handles the cold pretty well and does its job without much fuss. I did expect it to be a bit lighter, but overall it’s been a good performer so far, especially for the price.
⭐⭐⭐⭐⭐
Ricardo Silva, Equipment Manager, AgroForce, Brazil
We switched to the Agricultural Sprayer Gearbox D27B, and wow, what a difference! It’s been holding up great in the tough Brazilian heat and dust. Our sprayers are more efficient now, and we’ve even noticed a reduction in chemical waste. Totally worth it for large-scale farms.
⭐⭐⭐⭐⭐
Eva Thompson, Maintenance Supervisor, FarmTech, USA
The Agricultural Sprayer Gearbox D27A was super easy to install, and it’s been a game-changer for our field work. We’re covering more ground each day, and everything just feels more stable. It’s definitely built to last. Highly recommend it for anyone looking to keep things running smoothly.
⭐⭐⭐⭐⭐
Marco Rossi, Technical Director, Agricola Roma, Italy
We swapped out our old gearbox for the D27J model, and it’s been fantastic. No more issues with pump pressure dips, and it just works well, even during long days in the field. It’s been a solid investment, especially for anyone needing something reliable for heavy-duty work.
