Flail Mower Gearbox – Replacement of Comer Code T-312A 1:1.6
The T-312A flail mower gearbox, crafted by TEBSA in Argentina, is a heavy-duty powerhouse built for agricultural and forestry tasks. Whether you’re clearing dense brush, maintaining pastures, or mowing tough terrain in Argentina’s Pampas, this gearbox delivers reliable performance. Since 1997, TEBSA has been a trusted name, offering a 100% quality guarantee and a 50% cost advantage over original brands. The T-312A transfers power from your tractor’s PTO to the flail mower, stabilizing high-speed blades to ensure smooth, vibration-free cuts.
With a 1:1.6 gear ratio, four internal gears, and three bearings, the T-312A is engineered for durability and efficiency. Its quick-change blade system makes maintenance a breeze, letting farmers in Buenos Aires or Córdoba swap blades fast. Compatible with various flail mower models, it’s a versatile choice for Argentina’s diverse farming needs, from soybean fields to forestry clearings.
Why Choose the T-312A Flail Mower Gearbox?
The T-312A stands out for its rugged build and smart design, tailored to Argentina’s demanding agricultural landscape. Here’s what makes it a top pick:
Heavy-Duty Durability: Made with cast iron GG25 housing and alloy steel gears, it’s built to handle tough jobs like clearing overgrown fields or shredding crop residue. TEBSA’s advanced forging and carburization processes ensure the gearbox withstands the wear and tear of daily use.
Smooth Power Transfer: The 1:1.6 gear ratio and precision bearings keep the mower blades spinning evenly, reducing vibrations that could damage equipment or slow you down. This means cleaner cuts and less strain on your tractor.
Easy Maintenance: The quick-change blade system lets you swap or sharpen blades in minutes, minimizing downtime. TEBSA’s engineering team, available within 24 hours, backs you up with support for any questions.
Cost Savings: At 50% less than original Comer gearboxes, the T-312A offers the same performance for less, making it a smart buy for farmers and forestry workers looking to stretch their budget.
Local Fit: Designed with Argentina’s farms in mind, it’s perfect for crops like soybean, wheat, or corn, and terrains from the Pampas to Mendoza’s foothills. Its compatibility with multiple mowers adds flexibility for local operators.
Key Features at a Glance
Feature | Details |
---|---|
Material | Cast iron GG25 housing, alloy steel gears |
Gear Ratio | 1:1.6 (Increasing), 1.6:1 (Reducing) |
Bearings | Three high-quality bearings for smooth operation |
Blade System | Quick-change for fast maintenance |
Max Input Speed | 540 RPM |
Specifications of the Flail Mower Gearbox T-312A (1:1.6)
Product Description | Flail Mower Gearbox - Replacement of Comer Gearbox T-312A 1:1.6 |
---|---|
Product details |
|
Application range | Mowers |
Model | Gearbox T-312A |
Max. input rotation speed | 540 r/min |
Contains oil | No |
Max. oil capacity | 1.5 l |
Max. oil change interval | 500 h |
Oil SAE viscosity grade | 80W-90 |
Housing material | Cast iron GG25 |
Weight | 27 kg |
Gear arrangement Increasing | 27-28 |
Input power kW / HP Increasing | 55.9 kW |
Input shaft Increasing | X - Y |
Output Torque DaNm Increasing | 59.9 daNm |
Ratio Increasing | 1: 1.6 |
Ratio Reducing | 1.6: 1 |
Shaft X | 1 3/8" (6) (A) |
Shaft Y | 1 3/8" (6) (A) |
Shaft Z | 33 h7 (B) |
Applications of the T-312A in Argentine Agriculture and Forestry
The T-312A flail mower gearbox excels in Argentina’s varied landscapes, from the fertile Pampas to the forested hills of Misiones. Its robust design makes it a go-to for farmers and forestry workers tackling tough mowing tasks. Here are some key applications:
- Crop Residue Management: After harvesting soybean or corn, the T-312A powers flail mowers to shred stalks and stubble, preparing fields for the next planting season. Its stable power transfer ensures even cutting across large plots.
- Pasture Maintenance: In regions like Córdoba, ranchers use it to clear overgrown grass and weeds, keeping grazing lands productive for cattle.
- Forestry Clearing: For forestry operations in northern Argentina, the T-312A handles dense brush and small trees, making it ideal for land preparation or firebreak creation.
- Roadside and Orchard Mowing: Municipalities and fruit growers in Mendoza rely on its precision to maintain roadsides or orchard floors without damaging trees.
The gearbox’s compatibility with various flail mower models lets users pick the right setup for their tractor and task. Its 55.9 kW input power and 59.9 daNm output torque make it strong enough for heavy loads while staying efficient.
Application Scenarios
Task | Region | Benefit |
---|---|---|
Soybean stubble shredding | Buenos Aires | Fast, even cuts reduce field prep time |
Pasture clearing | Córdoba | Handles thick grass for better grazing |
Forestry brush clearing | Misiones | Tough enough for dense vegetation |
Orchard maintenance | Mendoza | Precise mowing avoids tree damage |
Maintenance Tips for Long-Lasting Performance
To keep the T-312A flail mower gearbox running smoothly, follow these practical steps, backed by TEBSA’s expertise:
Fill Before Use: The gearbox ships without oil. Add 1.5 liters of 80W-90 oil before starting, checking for leaks after filling.
Regular Oil Changes: Swap the oil after 50-70 hours of initial use, then every 500-700 hours or yearly. Clean oil keeps gears and bearings in top shape.
Inspect for Wear: Check the housing and shafts for cracks or wear, especially after heavy use in rocky areas like Patagonia.
Lubricate Shafts: Grease the input and output shafts to ensure smooth power transfer and prevent corrosion.
Check Alignment: Misaligned mowers can stress the gearbox. Ensure the PTO and mower are properly lined up to avoid vibrations.
These steps help extend the gearbox’s life, saving you costly repairs. TEBSA’s team is ready to answer maintenance questions within 24 hours, ensuring you’re never stuck.
Maintenance Schedule
Task | Frequency |
---|---|
Fill with 80W-90 oil | Before first use |
First oil change | After 50-70 hours |
Regular oil change | Every 500-700 hours or annually |
Inspect for wear | Monthly or after heavy use |
Grease shafts | Every 100 hours |
About TEBSA and Our Agricultural Gearbox Range
Since 1997, TEBSA has been Argentina’s trusted partner for agricultural gearboxes, delivering quality and value from our base in the heart of the country’s farming region. With ISO9001-2015 certification, we guarantee 100% quality in every order, backed by a skilled engineering team that responds within 24 hours. Our 50% cost advantage over original brands makes us a go-to for farmers and businesses looking for reliable, budget-friendly solutions.
Beyond the T-312A flail mower gearbox, we offer a wide range of agricultural gearboxes to meet your needs:
- Rotary Cutter Gearboxes: Like the RC-61, perfect for heavy-duty mowing.
- Fertilizer Spreader Gearboxes: For precise nutrient distribution in soybean or wheat fields.
- Post Hole Digger Gearboxes: Ideal for fencing or planting in tough Argentine soils.
- Rotary Tiller Gearboxes: Built for soil preparation in large-scale farms.
- PTO Shafts: Durable power transfer for various implements.
Whether you’re in Buenos Aires, Córdoba, or Mendoza, TEBSA’s products are designed to boost productivity while keeping costs low. Contact us today to explore our full range or get a quote for the T-312A flail mower gearbox!
About us

We guarantee top-quality products at the best prices in China! Special orders are welcome, and if you’re interested in any of our products, feel free to reach out for more detailed information. We ensure our products are safe, high-quality, and reasonably priced. Please contact us as soon as possible if you’d like to learn more. We’re eager to cooperate with you!
A large portion of our products is exported to Europe and the Americas, with both standard and custom options available. We can manufacture according to your drawings or samples, using standard materials or as per your specific requirements. Choosing us means choosing reliability.

Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request

Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly

QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port

Industries We Service
