1. Central Tyre Inflation System LAMMA 2016 Preview
CTIS
Central Tyre Inflation System
LAMMA 2016 Preview

2. TractAir – Company history and background
Established 25 years ago
Family business based in East Yorkshire
Specialists in air brake systems for OEM and retro-fit
Suppliers to CNH, John Deere, McCormick, Landini, Massey Fergusson, SDF etc
Also involved in Industrial
compressors and specialist
rail vehicle brake systems
ISO Accredited

3. Tractor Usage
Modern tractors are capable of high speeds – 50k is becoming the norm
Must be quick and safe to drive on roads
Must work in the field with maximum soil protection
All with minimum tyre wear and fuel consumption

4. Tractor Usage
As the link between machine and surface (field/road), the tyre must fulfil multifunctional tasks
- On the road, it must be hard with low wear - possible only with high tyre pressure
- In the field, it must be supple and soft, with good grip - possible only with low tyre pressure
Two essentially conflicting requirements! 

5. Why correct tyre pressures are important – Fuel consumption
In the field
Increased slip
Tractor is constantly climbing out of a rut
On the road
Increased tyre deformation creates heat
Reduced effective diameter reduces gearing and speed

6. Why correct tyre pressures are important – Fuel consumption
Depth of rut:
+ 0.4 inches depth = + 10 % diesel consumption

7. Why correct tyre pressures are important – Fuel consumption

8. Why correct tyre pressures are important – Fuel consumption
Testing carried out by Trellebourg / Farmers Guardian

9. Why correct tyre pressures are important – Tyre Wear
With insufficient tyre pressure :
Incorrect tyre contact wears lugs
Excessive heat buildup damages tyre
Excessive flex causes cracking and damage

10. Why correct tyre pressures are important – Tyre Wear

11. Why correct tyre pressures are important – Compaction
With excessive tyre pressure:
Deep ruts
Deep soil damage
Poor drainage
Poor root penetration
Reduced yield

12. Why correct tyre pressures are important – Compaction

13. Why correct tyre pressures are important – Compaction

14. Why correct tyre pressures are important – Compaction

15. Why correct tyre pressures are important – Compaction
BEFORE CTIS
WITH CTIS

16. Why correct tyre pressures are important – Wheel Slip and Traction
Correlation between Traction, Tyre Pressure and Slip

17. Why correct tyre pressures are important – Other advantages
Better self cleaning of tyre tread
Improved operator comfort
Reduced damage from vibration
Improved stability and cornering
Longer working season

18. Why use TractAir CTIS? Farmers typically don’t change pressures:
Tractor tyres are slow to change pressures using traditional methods and standard valves
Compressed air is not generally available in the field
Time is always precious
The advantages are not always understood
The driver may not be the person paying for fuel and tyres!

19. TractAir CTIS Off tractor systems – Airbox Mobile
Alter two tyres at a time with auto inflation/deflation
Set pressure on integrated gauges
All stored in tough aluminium case

20. TractAir CTIS Fully integrated system – Airbox Drive
Fully fitted with control in cab
Change pressure while on the move
Dedicated control box or ISOBUS integrated

21. TractAir CTIS Fully integrated system – Airbox Drive
External pipework which can be stowed away
Works with single, dual and triple wheels

22. TractAir CTIS Fully integrated system – Airbox Radial
Internal rear union fits over row-crop axles
Maintenance free
Easy to fit
Front external connections can be added

23. TractAir CTIS
Some photos - tractors

24. TractAir CTIS
Some photos - tractors

25. TractAir CTIS
Some photos - tractors

26. TractAir CTIS
Some photos - tractors

27. TractAir CTIS CTIS on trailers and towed implements
Can be controlled on the tractor
Big advantages for heavy trailers, slurry tankers, sprayers etc
Air path through the axle possible on some models

28. TractAir CTIS
Some photos-
trailers

29. TractAir CTIS
Some photos - trailers

30. Pricing Airbox Mobile - £590 Airbox Drive - £2300 – 3700
Airbox Radial - £

31. CTIS on Display at LAMMA
Tractors fitted with fully integrated CTIS
Parts and assemblies
Promotional video and leaflets
Demonstrations
Staff on hand to give information, advice and quotations