Go Back   Team-BHP > BHP India > Commercial Vehicles


Reply
 
Thread Tools Search this Thread
Old 12th October 2015, 17:38   #1
Team-BHP Support
 
Join Date: Feb 2004
Location: Mumbai
Posts: 7,315
Thanked: 23,886 Times
Default Mahindra launches Arjun Novo 605 DI-I-4WD tractor in India

Mahindra has launched a four-wheel drive version of the Arjun Novo tractor in the India called the Arjun Novo 605 DI-I -4WD.

Mahindra launches Arjun Novo 605 DI-I-4WD tractor in India-arjun-novo-605-dii-4wd.jpg

The 605 DI-I-4WD is powered by a 3,531cc, 4-cylinder diesel engine that puts out 57 HP. It has a 4WD system which distributes power to all four wheels, making it easier for the vehicle to work in all types of soil conditions. It is especially suited for wet land cultivation. It can be used with agriculture implements like tractor-mounted combined harvester, gyrovator, dozer and loader and for primary tillage and haulage applications.

The vehicle also has a synchro-shuttle feature that offers quick forward and reverse movements. A single hand operated lever can reverse the tractor at the same speed. The tractor has a full synchromesh side shift transmission with 30 speed (15 forward + 15 reverse) options. It has a range from of 1.7 kph to 33.5 kph and a lift capacity of 2,200 kg.

The Arjun Novo platform has been designed and developed in-house at Mahindra Research Valley in Chennai.

Last edited by Aditya : 13th October 2015 at 14:51.
Aditya is offline   (4) Thanks Reply With Quote
Old 13th October 2015, 05:27   #2
BHPian
 
jvk84's Avatar
 
Join Date: Jun 2009
Location: Tiruvalla
Posts: 73
Thanked: 57 Times
Default Re: Mahindra launches Arjun Novo 605 DI-I-4WD tractor in India

I always wondered: why those huge engines with very small power output on tractors and similar machines? what is the advantage?

Why not put a 1.5L engine which can deliver more power, possibly with higher efficiency?

(Anyone know how much torque this motor generates? )
jvk84 is offline   Reply With Quote
Old 13th October 2015, 12:13   #3
BHPian
 
amit_purohit20's Avatar
 
Join Date: May 2006
Location: mumbai
Posts: 558
Thanked: 466 Times
Default Re: Mahindra launches Arjun Novo 605 DI-I-4WD tractor in India

Quote:
Originally Posted by jvk84 View Post
I always wondered: why those huge engines with very small power output on tractors and similar machines? what is the advantage?

Why not put a 1.5L engine which can deliver more power, possibly with higher efficiency?

(Anyone know how much torque this motor generates? )
Reason for higher capacity engine are:
1) Long Stroke engine required for good torque.

2) Require Good Backup torque of the engine.

Backup Torque= (Max. Torque - Torque at Max. Power rpm)/ Torque at Max. Power rpm

Range of Backup torque is 18-22% Higher the better.

Tractors are normally driven at Constant Throttle position at Max. Power rpm. If the torque requirement is higher than what is available at Max. Power rpm the Engine rpm drops till sufficient torque is available. (Please note here that the torque increases as the Engine rpm drops from Max. Power rpm.) The lesser this engine rpm drop the better its perceived by the farmers. This explains the significance of Backup Torque.

3) For tractor Power requirements are less whereas there is very high importance placed on Torque figures as well as the torque characteristics with respect to Engine rpm.

4) Lower Engine running speeds favor Increased Fuel Economy.

5) Higher the Engine CC higher is the reliability of the Engine as the engine is less stressed.

6) Space requirements for fitment of engine in tractor is not as stringent as a car. So Engine dimensions do not matter much and thus one can go for higher cc engines.

7) Tractors undergo a lot of use and abuse, so the Engines have to be build sturdier and more robust than passenger cars.
amit_purohit20 is offline   (4) Thanks Reply With Quote
Old 13th October 2015, 12:48   #4
Distinguished - BHPian
 
dhanushs's Avatar
 
Join Date: Oct 2009
Location: Bathery/BLR
Posts: 3,446
Thanked: 4,055 Times
Default Re: Mahindra launches Arjun Novo 605 DI-I-4WD tractor in India

Im not sure about the Model Number, but a close friend and my neighbor has a 4WD model Arjun tractor bought back in 2011. So, this is not the first and only 4WD tractor from Mahindra.

The tractor is very heavy, not as agile as the 2WD ones (without the trailer), but has solid torque and good road speed. It will pull a fully loaded 10wheeler truck easily provided it has good traction.
dhanushs is offline   (2) Thanks Reply With Quote
Old 13th October 2015, 13:32   #5
GTO
Team-BHP Support
 
GTO's Avatar
 
Join Date: Feb 2004
Location: Bombay
Posts: 47,756
Thanked: 89,393 Times
Default Re: Mahindra launches Arjun Novo 605 DI-I-4WD tractor in India

Quote:
Originally Posted by Aditya View Post
The 605 DI-I-4WD is powered by a 3,531cc, 4-cylinder diesel engine that puts out 57 HP. It has a 4WD system which distributes power to all four wheels, making it easier for the vehicle to work in all types of soil conditions. It is especially suited for wet land cultivation. It can be used with agriculture implements like tractor-mounted combined harvester, gyrovator, dozer and loader and for primary tillage and haulage applications.
Brute offroaders, can run through any sort of terrain .

2WD tractors are so capable that I can only imagine what a 4x4 Tractor can do. Torque, big wheels and tyres that just dig mercilessly into the mud. If an offroader gets stuck, the best recovery vehicle is a tractor. Pulls a Jeep out like it's a toy.
GTO is offline   (2) Thanks Reply With Quote
Old 13th October 2015, 13:45   #6
BHPian
 
Divya Sharan's Avatar
 
Join Date: Dec 2012
Location: Bangalore, BKSC
Posts: 370
Thanked: 788 Times
Default Re: Mahindra launches Arjun Novo 605 DI-I-4WD tractor in India

Interesting discussion. I agree that for applications worthy of a tractor, pulling capacity matters more than outright power, but I was expecting huge figures for torque for the 3.5L unit.

Googled about a bit and got some data on another smaller cousin (2WD) from Mahindra.
Mahindra Bhoomiputra 575 DI Tractor - 2.5L, 44 hp and 155 Nm torque @1200-1400 RPM.
Isn't 155 Nm too less for a 2.5L mill? So this 3.5L mill may make 180 or so Nm.

I'd like to know what limits the manufacturers from extracting more power/torque from these machines?
1. Doesn't need more power/torque?
2. Would require bigger engines for achieving the same (keeping reliability in mind)?
3. What are the technical challenges faced exactly, with smaller engines?
4. Do they have the same emission standards as passenger cars?
Divya Sharan is offline   Reply With Quote
Old 13th October 2015, 20:29   #7
BHPian
 
amit_purohit20's Avatar
 
Join Date: May 2006
Location: mumbai
Posts: 558
Thanked: 466 Times
Default Re: Mahindra launches Arjun Novo 605 DI-I-4WD tractor in India

Quote:
Originally Posted by Divya Sharan View Post
Interesting discussion. I agree that for applications worthy of a tractor, pulling capacity matters more than outright power, but I was expecting huge figures for torque for the 3.5L unit.

Googled about a bit and got some data on another smaller cousin (2WD) from Mahindra.
Mahindra Bhoomiputra 575 DI Tractor - 2.5L, 44 hp and 155 Nm torque @1200-1400 RPM.
Isn't 155 Nm too less for a 2.5L mill? So this 3.5L mill may make 180 or so Nm.
Tractors have very high Gear reduction of 100 or above sometimes in lower gears.

This translates to the torque at engine being multiplied more than 100 times before applying it at the wheels. So a lower Engine torque figure should be sufficient for its needs. In lower gears often traction is the limiting criteria not the Torque available at the wheels. Exactly the reason why 4wd Tractors are more preferred over 2wd ones. Its only the cost factor which stops a farmer from going for the 4wd ones.

Lower Torque, Lower Power, Higher CC all help in making a Engine less stressed. The lesser the stress the lesser the need for high strength and costly materials for the engine parts.

Lesser stress also equates to higher reliability.

I think smaller capacity engines will have poor Backup Torque as well as the rpm drop will be too large for the Tractor to work satisfactorily.

Larger rpm drops (as explained in my first post) will lead to inaccuracy in executing agricultural operations.
amit_purohit20 is offline   (4) Thanks Reply With Quote
Old 13th October 2015, 20:55   #8
Distinguished - BHPian
 
Join Date: Jul 2009
Location: Kolkata
Posts: 3,506
Thanked: 2,072 Times
Default Re: Mahindra launches Arjun Novo 605 DI-I-4WD tractor in India

Hi Amit,
I think you need to put in a post about things like side shift gears, planetary reduction in axles etc. And then of course tractor hydraulics. And the range of implements/ attachments available in the tractor world. I think such a post would be appreciated by this forum.

Regards
Sutripta
Sutripta is offline   (2) Thanks Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mahindra launches 415 DI tractor in 40 HP category Aditya Commercial Vehicles 4 9th September 2015 10:09
Mahindra launches Arjun Novo tractor in India Aditya Commercial Vehicles 0 20th August 2014 17:38
India's 1st CRDe Tractor - Arjun 605 MAT by Mahindra mahesh_sn Commercial Vehicles 2 12th March 2014 14:35
Mahindra 4WD vs Modern 4WD Samurai 4x4 Technical 137 19th February 2012 19:46
Mahindra Shaan - New Tractor from Mahindra! normally_crazy Commercial Vehicles 25 7th April 2009 00:36


All times are GMT +5.5. The time now is 12:01.

Copyright ©2000 - 2017, Team-BHP.com
Proudly powered by E2E Networks