2021 New Holland Speedrower® SP Tier 4B 260The Speedrower® self-propelled windrower name is synonymous with unparalleled efficiency, durability and the brute power required to meet any crop head-on and cut or swath it in record time. A lot has changed on these windrowers through the years, but one thing has not. You can depend on the New Holland Speedrower because of its proven record of reliability and performance for over 50 years. That heritage continues with the newest models. We are continuing to raise the bar and put even more power, efficiency, and of course SPEED into the newest Speedrower! The latest Speedrower windrowers set the standard with best-in-class operator comfort, increased horsepower, fuel efficiency, and advanced Tier-4B-compliant engines. Now you can have the advantage of New Holland’s proven ECOBlue™ engine technology that’s been tackling tough jobs in New Holland tractors for over four years. Plus, the new Speedrowers look great with updated styling that is functional too! - The new Tier 4B Speedrower® Series engines offer the best of all worlds: increased power and performance combined with improved fuel efficiency—all in a cleaner-burning engine that’s built New Holland SMART. How much better can it get? New Holland achieves Tier 4B emissions levels with a Selective Catalytic Reduction (SCR) system, employing diesel exhaust fluid (DEF), and a Diesel Oxidation Catalyst (DOC) Canister.
- Exhaust gases leave turbo outlet and travels through the DOC canister, where precise amounts of DEF are injected into the exhaust stream
- DEF quickly vaporizes and converts to ammonia and carbon dioxide (the basic elements of DEF)
- Exhaust, carbon dioxide and ammonia pass into the SCR chamber
- In the SCR canister, carbon dioxide is neutralized and the ammonia catalytically reacts to NOx
- After the catalytic reaction, the harmless nitrogen vapor and water vapor are released through the exhaust pipe to the atmosphere
- The new Tier 4B engines, combined with programmable throttle, lead to maximum fuel efficiency, resulting in decreased operating costs. The programmable engine throttle allows you to set the engine speed to just what you need, creating even more fuel savings. The reduction in fuel consumption means fewer fill ups, allowing for more uninterrupted time in the field. Now, the Speedrower goes further and longer without stopping to fill up.
- The Speedrower cooling system is designed to suit the cooling needs of each model and offers increased cooling capacity compared to previous models. The rotary air screen housing is made of steel and creates a tight seal, resulting in improved performance. The wand and duct system is a full third larger than previous models and the rotary screen motor has been upgraded to ensure the screen is continually cleaned.
- The new Speedrower Tier 4B 6-cylinder engines provide an impressive 10% boost in engine horsepower, and the 4-cylinder upgrade to electronic common-rail fuel delivery provides an amazing 20% increase over the prior Tier 3 model. With more torque than before, Speedrower windrowers are the right choice to climb hills, and power through the tough stuff with reliable power when you need it most.
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