Comparison New Tractor Emissions Technologies

[jaydee325]

ALL tractors with or without DPF have DOC.

This is news to me. Have a reference I can look at to learn something new?

 

[jeff9366]

1) Keep in mind the DPF is just a simple filter, if it's plugging up it's because there is another problem upstream, either running rich or an intake or oil leak.

2) ALL tractors with or without DPF have DOC.

1) DPF is not a filter. DPF is a condenser. Diesel particulates are not filtered by DPF at all.

2) This statement is factually incorrect.

 

[ptsg]

1) DPF is not a filter. DPF is a condenser. Diesel particulates are not filtered by DPF at all.

2) This statement is factually incorrect.

Then why DPF translates for Diesel Particulate Filter?

If the statement you quote is incorrect, what's the correct version?

All DPFs I've seen uses a DOC first, then the DPF after the DOC. All inside the canister.

Here is a Service Manual for the DPF+DOC used on the Branson 7845 in the US and K78 and 6225 on Europe. It's explains how to open, service and put back together.

View attachment DPF-ja-katalysaattori-korjaamokirja-25-sarja.pdf

 

[Waharanch]

Having just had so far unsolved DPF problems on a Kioti, I vowed to find a new tractor without DPF. In the 26-75 HP range there are only 3 I could find. MF, Mahindra and Case/NH Farmall Utility (not compact, which are LS made). Going through the terrible Kioti dealer/corporate support, I would rule out Mahindra for the same reason. When it came to the Kioti NX5510, the close second was the MF1760, but I couldn't justify the price delta...if I only knew.

Keep in mind the DPF is just a simple filter, if it's plugging up it's because there is another problem upstream, either running rich or an intake or oil leak. ALL tractors with or without DPF have DOC. While there such a thing a DOC 'face plugging', 99.9% of diesel emission problems are DPF related.

Now happily driving a Case Farmall 75A, which is an entire new level of size and power above a compact. So far very happy.

This is great news to me. With all this great information I was really on the fence to go to MF/Mahindra or used. I have always liked Case, and will definitely take a look at the Case Utility line. It is really coming down to price at this point. On a used machine the cost is still fairly significant, then I am going to add in a fairly high interest rate financing privately, in the end it is almost equal to something new with zero interest plus a warranty.

Again, I am not against the emissions in general, just dead set against the DPF or DEF technologies at this point.

 

[todd92]

1) DPF is not a filter. DPF is a condenser. Diesel particulates are not filtered by DPF at all.

2) This statement is factually incorrect.

1) Diesel particulates are a solid in the exhaust stream and a solid when captured by the DPF. That is the definition of filtration. Condensing is collecting a gas as a liquid. There is no condensation occurring in a DPF.

2) You are factually incorrect.

 

[rademamj1]

I don't know why some people doubt the DPF is a true filter. The DPF is a true ceramic coated filter, designed to trap diesel particulates inside the filter, after first passing through the DOC chamber. Later, all diesel particulates are burned off to a fine ash by high temperature regeneration process inside the DPF. I have attached a file showing Kioti emissions system, which is similar to Kubota and JOHN Deere.

 

[kenmac]

1) DPF is not a filter. DPF is a condenser. Diesel particulates are not filtered by DPF at all.

2) This statement is factually incorrect.

LOL..... Just a little research will prove you are FACTUALLY INCORRECT !

Diesel particulate filter - Wikipedia

 

[Thunder chicken]

last year i sat in a ~90 hp Landini. it had no DPF on it. i believe it was a 2017 model. (must have had a DOC?). i'm not sure either way but they had a sticker in the window advertising it as having no emissions systems......
It felt like a nice machine sitting in it. It was quite affordable too, although was a simple tractor, no hyd. shuttle....

 

[rademamj1]

last year i sat in a ~90 hp Landini. it had no DPF on it. i believe it was a 2017 model. (must have had a DOC?). i'm not sure either way but they had a sticker in the window advertising it as having no emissions systems......
It felt like a nice machine sitting in it. It was quite affordable too, although was a simple tractor, no hyd. shuttle....

I am not sure why Landini would say they have no emissions systems. The Landini Tractors meet Tier-4 emissions by using a DOC + DPF. This is from their brochure:

"The Landini 5H tractors are powered by the new Perkins 854E-E34TA series four-cylinder turbo-aftercooled engines with power ratings from 85 to 113 hp. These 3.4L engines feature two-valve cylinder heads and electronic common rail fuel injection system, and utilize an innovative exhaust gas recirculation system (EGR) in conjunction with a DOC and industry standard diesel particulate filter (DPF) to meet the stringent Tier 4 emission regulations."

These Italian made Landini tractors have some of the best equipped and luxurious tractor cabs on the market.

 

[todd92]

Holy obscure tractor, Batman.