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Old 23rd December 2010, 19:32   #1
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Default JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!

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JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!-1.jpg

High Points:

- JK Tyre rolls out India’s largest Off Road tyre in Mysore.

- Size : 40.00 - 57 60PR VEM045 E4 Tubeless tipping the scales at 3700 Kg; this is the biggest tyre ever made in India so far. Previously, this size was imported from USA & China.

- This category of products is used in mines and other similar application areas.

- The tyre stands almost 12 feet from the ground, and is fitted in 240 tonne Rear Dump Trucks (the largest haulage equipment in the country).

Last edited by GTO : 23rd December 2010 at 19:35.
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Old 23rd December 2010, 21:04   #2
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Default Re: JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!

wow!
congrats to JK tyre & their R&D division.

it also shows the the quality of their product & technology used in it. (also in small tyres)

where are MRF & CEAT?

Last edited by jeepster : 23rd December 2010 at 21:08.
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Old 23rd December 2010, 21:08   #3
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Default Re: JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!

That's one big tyre. Dont want to be stuck behind this ever at a air pump at a petrol pump.

How much does one of these cost anyways? And how long between tyre changes?
I bet they dont believe in tyre rotations.
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Old 23rd December 2010, 21:16   #4
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Default Re: JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!

Ill take a few snaps and post it next time around. These vehicles do roam about at my place of work .
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Old 24th December 2010, 10:56   #5
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Default Re: JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!

Hi
Good to know JK is producing Dump Truck tyres in India, the cost will be somewhere around 10Lacs , I work for CAT at their Chennai factory, we do manufacture smaller machines than this of the capacity from 40-100 tonnes, the machines which you see above are imported from CAT - decatur plant in the US. The biggest is the 797F
The Mind Boggling Specifications are

Operating Specifications

Nominal Payload Capacity 400 tons
Top Speed - Loaded 67.9 km/h
Maximum Payload Capacity 400 tons
Steer Angle 40 Degrees
Raise Time 25 Seconds
Lower Time 19 Seconds

Engine

Engine Model Cat® C175-20
Net Power -3793 hp
Rated Power -4000 hp
Torque Rise - 19.4 %
Bore - 6.9 in
Stroke - 8.7 in
Displacement - 106 Lit (106000 cc )

Weights - Approximate
Gross Machine Operating Weight (GMW) - 623 Tonnes (623690 kg)
Chassis Weight- 212 Tonnes (212706 kg)

Tires
Standard Tire - 59/80R63
Tire - 59/80R63 - Michelin or Bridgestone
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Old 24th December 2010, 11:23   #6
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Default Re: JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!

Congratulations to JK Tyres. It always feels good when something like this happens. We have caliber and its proven yet again.
Let them roll out to world making our mark
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Old 24th December 2010, 12:00   #7
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Default Re: JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!

Well, I am still wondering how will JK Manage to break even, the sales I am not expecting to be more than 20 tyres per year.
I guess it must be more of a momento kind of thing than sales figures that would attract them to manufacture such huge tyres.
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Old 24th December 2010, 23:29   #8
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Default Re: JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!

Quote:
Originally Posted by xingamazon View Post
Well, I am still wondering how will JK Manage to break even, the sales I am not expecting to be more than 20 tyres per year.
I guess it must be more of a momento kind of thing than sales figures that would attract them to manufacture such huge tyres.
I think they will price them accordingly. Since they were imported before which i think attracted a huge duty.

BTW GTO these are called off-highway trucks (not offroad).
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Old 24th December 2010, 23:47   #9
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Default Re: JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!

Man.....How much time it takes to inflate one of these??
Foot pump anyone???

And look at where the headlights are mounted on that beast.
What the mileage that monster returns??
And is that huge grill hides a radiator that big??
CAT makes engines for these by themselves or get it made by someone else??
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Old 24th December 2010, 23:51   #10
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Default Re: JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!

Quote:
Originally Posted by xingamazon View Post
Well, I am still wondering how will JK Manage to break even, the sales I am not expecting to be more than 20 tyres per year.
I guess it must be more of a momento kind of thing than sales figures that would attract them to manufacture such huge tyres.
Agreed the demand in India may be limited, but surely they can be very competitive in the export segment especially the far east not to mention shorter delivery times.

Fantastic achievement made our country proud, keep it up JK.
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Old 25th December 2010, 00:07   #11
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Default Re: JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!

Are these machines road legal? Heard somewhere that any machine higher than a certain tonnage is not allowed on highways.
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Old 25th December 2010, 00:14   #12
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Default Re: JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!

Let me just cite the numbers from just 1 site to give you a rough idea on the scale of operations where this vehicle is used.

Location : Korba, Chattisgarh.
Organization: SECL ( South Eastern Coal Fields )
Mining Capacity : 60 million tonnes/ year ( total reserves of 90Billion MT ).

Apart form using a surface miner ( which again is a humongous vehicle ), 75% mined coal from the seam is transported exclusively via trucks to the stockyard, hoppers and railway sidings.

Close to 1.5Lac MT / day covering a lead of 4kms up/down.

HYWA = 15-20MT
TIP TRAILER = 24-40MT
THE MONSTER = 280MT ( overloaded)

I'll let you do the maths to figure out the number of vehicles in use and distance covered in a month .
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Old 25th December 2010, 00:16   #13
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Default Re: JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!

Quote:
Originally Posted by prithvi_seln View Post
I work for CAT at their Chennai factory, we do manufacture smaller machines than this of the capacity from 40-100 tonnes, the machines which you see above are imported from CAT - decatur plant in the US. The biggest is the 797F
The Mind Boggling Specifications are

Operating Specifications

Nominal Payload Capacity 400 tons
Top Speed - Loaded 67.9 km/h
Maximum Payload Capacity 400 tons
Steer Angle 40 Degrees
Raise Time 25 Seconds
Lower Time 19 Seconds

Engine

Engine Model Cat® C175-20
Net Power -3793 hp
Rated Power -4000 hp
Torque Rise - 19.4 %
Bore - 6.9 in
Stroke - 8.7 in
Displacement - 106 Lit (106000 cc )
Thanks prithvi for posting the details. Didn't knew these beasts were used in India.

Is this tire filled with nitrogen or air? How much will be the tire pressure?
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Old 25th December 2010, 00:28   #14
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Default Re: JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!

Quote:
Originally Posted by absynthguzzler View Post
Ill take a few snaps and post it next time around. These vehicles do roam about at my place of work .
Do you work with NMDC?

Quote:
Originally Posted by vaisakhr View Post
Is this tire filled with nitrogen or air? How much will be the tire pressure?
I believe these would be solid tyres but let the experts confirm.

Last edited by khoj : 25th December 2010 at 00:32.
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Old 25th December 2010, 10:59   #15
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Default Re: JK Tyres rolls out India's biggest tyre. Weight = 3,700 kilos!

Quote:
Originally Posted by xingamazon View Post
Well, I am still wondering how will JK Manage to break even, the sales I am not expecting to be more than 20 tyres per year.
JK's tyre factory (Vikhrant tyres) in Mysore is very close to BEML Mysore(both are in Hebbal Industrial area). I guess it makes sense to manufacture these kind (meaning offroad tyres for earthmovers) close to vehicle factory to reduce transportation costs

Last edited by DWind : 25th December 2010 at 11:03.
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