Frequently Asked Questions
A Semi-Air Suspension Kit adds air springs to the rear of your vehicle. These work alongside your existing leaf spring suspension to improve performance and comfort.
Key benefits include:
- Better load handling
- Prevents rear sagging
- Improved driving comfort and stability
- Better cornering and grip
- Reduced noise
- Leveling on uneven ground or slopes
- Balances irregular weight distribution
We offer four main Semi-Air Suspension systems: Basic, Dual Control, Comfort, and Digital Remote.
Basic System:
- Uses a single airline connecting both airbags.
- Same pressure in both airbags.
- Ideal for preventing rear sagging and maintaining ground clearance.
- Allows the vehicle to be raised safely (e.g., for ferries).
Dual Control System:
- Has two separate airlines - one for each airbag.
- Allows independent adjustment for each side.
Benefits include:
- Better cornering and grip
- Balanced load distribution
- Leveling on a slope or uneven surface
- Improved comfort and road handling
Comfort System:
- Premium version of the Dual Control system.
- Uses up/down barb switches instead of manual inflation valves.
- Offers convenient in-cab control (optional dash panel available).
Digital Remote System:
- Our latest and most advanced system.
- Fully remote controlled with up to 3 pressure presets.
- Inflate or deflate with a single button press.
- Customizable for low, normal, or high ride heights.
The correct air spring depends on your vehicle and load requirements.
4000KG rated airbags:
- Rubena 170/1
- Rubena 170/2
- Martech 155/2
5000KG rated airbags:
- Martech 180/2
The 5000KG-rated Martech 180/2 offers greater comfort and stability.
Some vehicles require smaller airbags due to a low chassis or anti-roll bar position.
You can use our website’s filter options to find compatible kits for your vehicle.
Yes we offer fitting services at our workshop in Boston, Lincolnshire.
For more information regarding fitting please contact us at info@martech-airsuspensions.co.uk
No, our kits are designed not to cause any damage to your chassis.
However, overloading your vehicle or using incorrect air pressures can cause damage.
All kits come with instruction manuals outlining correct setup and recommended pressures.