A 4×4 air compressor (12v) is an essential piece of equipment you should never leave home without. Assist in repairing a puncture, pump up an air mattress, and engage air-locking differentials. And even operate power tools (if you have an air receiver). Aside from the most obvious application, which is to inflate tyres, compressed air can also be used to re-bead a tyre separated from the rim.
The low air compressor can be found in many forms and configurations. Ranging from single-piston models made in China as affordable as potato chips to high-output twin-piston configurations crafted by prestigious manufacturers. Prices and performance can vary significantly from one another.
A low-quality pump may be adequate for your needs. However, you should be aware that most of the cheaper units require up to ten minutes for each tyre. Compressors of lower quality will have a shorter lifespan than those of higher quality, and they may be unable to engage an air locking differential. To be inflated from a completely deflated state to the recommended pressure for the road.
High airflow is essential.
Knowing that a compressor’s rated airflow is measured from zero bar when thinking about airflow is essential. The airflow from the compressor decreases as the pressure in your tyre increases. A compressor must be able to continue operating at a high airflow despite increased pressure.
The vast majority of manufacturers will detail how long their compressor can operate and the pressure it can withstand. Some compressors may even offer a duty cycle of one hundred per cent, which denotes that they can operate continuously for extended periods without the requirement to cool down.
Compressors with longer duty cycles, higher flow rates, and better warranties will typically be more expensive than those that do not have these characteristics. Unfortunately, as with most things, performance comes at a price.
What should your budget be?
For this comparison, we have selected a variety of air compressors that are readily available in the area based on the price range that each falls into. Have a look at the more affordable alternatives if you only use your compressor occasionally. But investigate the more pricey alternatives if you frequently need to inflate large 4×4 tyres. The air compressors that we have in our comparison are all portable units; however, most of them come with the necessary brackets for permanent installation on your vehicle.
About the Bushranger® Max Air III Compressor
Engineered and designed to make operation speedy and straightforward. This apparatus can easily be inflated and deflated and meet all of your air-supply requirements. You can use this compressor without switching it on and off continually. It is excellent for use on tyres and provides rapid inflation and ease of use. In addition, it is manufactured to the highest possible quality standards. This compressor is also an excellent choice for an onboard air system. To use it in such a system, you simply need to hard-mount it and secure it to a tank; the pressure switch will already be in place.
Among Its Many Features Are:
– The rate of flow is 72 LPM
Maximum Pressure: 150 psi
12-volt motor and air pump
Inflation gun in the style of a trigger with a locking lever
The deflator button integrated into the trigger
On 0–120 psi (+/- 5 per cent) when the Pressure Switch is engaged. | Off: 150 psi (+/- 5 percent )
Protection against thermal overload
Lit from behind a Large Digital Display
Heavy-Duty power lead and a 40-amp inline fuse for the protection of the compressor
A power cord that is 2.5 metres in length and a 9-meter flexible fibre reinforced air hose with a reach of 11.5 metres – Built-in on/off switch.
Vibration is dispersed by a removable rubber base plate mounted, and the plate can be removed for demanding mount applications.
A hard mount kit permanently mounts the compressor; dry-sump enables mounting at multiple angles.
Manufactured to the highest standards and accredited to the International ISO9002 Standards, as well as conforming to AS/NZS1044
Three additional nozzles
Sturdy Carry/Storage bag with additional pockets for additional items stored within the bag.
Accessories and spare parts available (sold separately)
Buying guide continued:
Why such an extensive range in price?
When it comes to making a purchase decision. There are a few specific things you should look for, the place of manufacture and the number of pistons.
Less expensive compressors will undoubtedly have a lower reliability rate than more expensive ones. Companies confident in the quality of their wares will typically stand behind them with more robust guarantees. You must have faith in the product. Otherwise, you risk being stranded remotely in the Australian outback with a flat tyre and no additional hand pump to re-inflate it.
4×4 air compressor (12v) with lower output and a lower draw may have a connector. That can be plugged into the cigarette lighter of your vehicle. To avoid blowing fuses, check to see if the cigarette lighter socket on your vehicle produces the required amount of amperage for your compressor before you attempt to use it. Check first, and don’t just throw in a fuse with a higher rating as a matter of course; some of the outlets in the vehicle are designed to carry heavier loads than others. Crocodile clips are a type of electrical connection that is more common and safer. Which can be attached directly to the battery’s terminals. (Every single one of the compressors we have on this list has a direct connection to the battery.)
Rate of flow
The number of litres that can be moved through a compressor in one minute is called its “capacity” (LPM). This is an important statistic to keep in mind. However, the flow rate of a pump will gradually decrease as the pressure increases (and the load increases as well). Pumps with larger pistons, also known as twin-piston pumps, will naturally have a higher flow rate. However, these pumps are also more expensive and take up more space.
On the other hand, not all manufacturers reveal their flow rate when subjected to pressure. When you look at the specifications, you’ll see that the more premium brands are more than happy to reveal their flow rate even when the pressure increases. Some other brands are not as eager to give all of the information, which may indicate their less impressive performance.
Cheap compressors are frequently constructed with very little in the way of sound deadening, which means that despite their diminutive size, they can be extremely noisy. Turn them on in the store to judge whether or not your particular selection sounds like an antelope during the mating season before you decide to purchase it.
If you plan to permanently instal your compressor in the engine bay of your vehicle, check to see if the compressor you intend to use will fit. Many portable compressors come with a convenient carry case that you can keep in your car if you buy one. The one-of-a-kind and space-saving design of the ARB CKMTP12 twin-piston compressor. Thus, it is one of the contributing factors to its exorbitant price tag. Keep in mind that the twin-piston units are significantly larger than the single-piston setups, which are considerably more compact.
The increased durability offered by more exotic materials does, of course, come at a higher cost. As an alternative to alloy cylinders and plastic piston rings. More expensive compressors may have cylinder liners coated with Nikasil and piston rings made of carbon fibre. You can tell right away which one will stand the test of time.