Regardless if you own a small garage or a food manufacturing facility, maybe you’ve heard about a rotary screw air compressor. And it got you wondering. What’s the benefit of using it for your vacuum filler or jackhammer? Why do people praise it so much? Continue reading to find out:
How it works
So how does a rotary screw air compressor work?
It basically uses two rotors (meshing helical screws) to compress gas. There are two kinds of compressors: dry-run and lubricated. In the former, the timing gears align the rotors; meanwhile, in the latter, the oil separates the rotors, which provide a hydraulic seal. It also shifts the mechanical power between the male (driving) and female (driven) rotor.
But how does gas enter? It comes in at the suction side. While the screws are rotating, it moves along the threads. By then, the rotors push the gas out of the compressor, which exits through the screws’ end.
Below, the two types are further explained.
Types of rotary screw air compressor
Dry run or Oil-free
This compressor forces air through the screws’ movement. It does not need oil seals. And because of that, the maximal discharge pressure capability is lower. It’s also quieter and ideal for people who own small shops or garages. Apart from the latter, oil-free compressors are also common among semiconductor factories and medical labs. Take note: even though it’s oil-free, it still undergoes an air treatment like oil-injected compressors. They do this to ensure quality.
Oil-flooded or Oil-injected
Meanwhile, oil-injected compressors use oil in compression cavities to help sealing. It also uses oil to supply the gas charge with a cooling sink. Most industry professionals celebrate oil-injected compressors for their efficiency. For instance, a rotary screw air compressor NZ has today, such as Pneutech’s RKB series. It comes with Teflon oil seals and much larger oil passage. The former is known for their long-term reliability and performance; while the latter is known for its maximums efficiency. Click here for Industrial Air Systems
Why use a rotary screw air compressor?
In contrast to Roots type, a rotary screw air compressor in NZ generally has:
- …almost zero parasitic losses.
- …incredibly low leakage levels.
- …twin-screw shots that show internal compression.
- …no reliance on flow downstream resistance.
- …its superchargers use intercoolers, which minimizes heat in compression.
Must-buy superior compressors in NZ
What compressor models are worth the cost? Here are some of them:
Pneutech’s RKB series
Overall, the RBK series boasts the absolute lowest lifetime cost—or the total of maintenance, capital, and energy expenses. If you’re a business person who’s squeamish with long-term value, these are your picks. With the RKB, you won’t be shelling out your money for nothing.
- Fully Integrated RK15B-270D
- Partially Integrated RK25BD
- Stand Alone RK15B
Pneutech’s RSCR series
Another series built to last. If you’re fixated on strength and superior air quality, this is your machine. The RSCR is a flagship series of Pneutech. With these soldiers, you can expect lower operational costs, reduced factory downtime, and maintained air quality—regardless of the temperature or environment.
Buy yours now.
Are you struggling to find rotary screw air compressor providers? Here’s a service centre and supplier you can trust: Industrial Air Systems NZ. They are the home of the world-renowned compressor brand, Pneutech Screw compressors. You can buy the products mentioned above in their shop. Check out their products here: https://www.industrialair.co.nz.