ZR ZT 30-55 FLX
Oil-free rotary tooth air compressors ZR & ZT
Features
The ZR/ZT 30-55 FLX by Atlas Copco is a line of oil-free, dual-speed rotary tooth air compressors designed to bridge the gap between traditional fixed-speed compressors and Variable Speed Drive (VSD) models.
Here is a breakdown of its key features:
1. Dual-Speed Technology
Unlike traditional fixed-speed compressors that run at a constant maximum motor speed, the FLX operates at two different fixed speeds:
Loaded State: It runs at maximum capacity to meet air demand efficiently.
Unload State: When not producing compressed air, the motor drops to a minimum speed. This significantly reduces unload power consumption (by up to 7%) and eliminates wasteful energy spikes.
2. High-Efficiency Motors & Drives
IE5 Permanent Magnet Motors: The compressor utilizes two oil-cooled, ultra-premium IE5 permanent magnet motors (IP66 protection grade). These motors independently drive the low- and high-pressure compressor elements, optimizing load distribution.
NEOS Next Frequency Converters: Developed in-house, these drives manage the main motor and auxiliary components (like the cooling fan and dryer). They ensure stable operation even in harsh environments with ambient temperatures up to 50°C (122°F).
3. Certified Oil-Free Air
The ZR/ZT FLX delivers ISO 8573-1 Class 0 certified 100% oil-free air. This makes it ideal for industries where contamination is unacceptable, such as food and beverage, pharmaceuticals, and electronics manufacturing.
4. Advanced Monitoring and Control
Elektronikon® Touch Controller: The user-friendly touchscreen interface integrates smart algorithms to optimize system pressure and maximize energy efficiency.
SMARTLINK Connectivity: It provides warning indications, maintenance scheduling, and online visualization of the machine’s condition to prevent unexpected downtime.
5. Seamless VSD Upgradeability
One of the most unique features of the FLX series is its software-based upgrade path. If your facility’s air demand begins to fluctuate significantly, you do not need to buy a new machine. You can purchase a software license to unlock full Variable Speed Drive (VSD) capabilities, allowing the compressor to continuously adjust its motor speed anywhere between 30% and 100% of its capacity in real-time.
6. Soundproof and Compact Design
The compressor comes enclosed in a sound-insulated canopy, allowing it to be installed directly on the factory floor rather than requiring a dedicated, isolated compressor room. It can also be configured as a “Full Feature” package with an integrated rotary drum dryer (iMD) or refrigerant dryer, which reduces its physical footprint and installation costs.
Benefits
Here is a breakdown of the primary benefits:
1. The “Goldilocks” Balance of Cost and Efficiency
Traditionally, facilities had to choose between a cheaper fixed-speed compressor (which wastes energy when demand is low) or a more expensive Variable Speed Drive (VSD) compressor (which perfectly matches energy use to demand).
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The Benefit: The FLX offers a middle ground. It has a lower upfront purchase cost than a full VSD model, but its dual-speed technology offers significantly better energy efficiency than a standard fixed-speed machine.
2. Future-Proofing Through Software
Air demand in a factory often changes as production scales up, shifts are added, or new equipment is installed. Normally, if your air demand begins fluctuating wildly, a fixed-speed compressor becomes highly inefficient, forcing you to buy a new VSD machine.
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The Benefit: The FLX eliminates this risk. If your facility’s needs change, you can simply buy a software license to unlock full VSD capabilities. You get a brand-new, highly efficient operating profile without having to replace the physical hardware or alter your compressor room.
3. Zero Risk of Product Contamination
Because the ZR/ZT series is certified ISO 8573-1 Class 0, absolutely no oil is used in the compression chamber.
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The Benefit: This guarantees 100% oil-free air, entirely eliminating the risk of oil contaminating your end products, damaging your downstream equipment, or ruining a production batch. This is a critical regulatory and financial benefit for food and beverage, pharmaceutical, and electronic manufacturing sectors.
4. Reduced Transient Energy Spikes
When traditional fixed-speed compressors transition from being “unloaded” (not making air) to “loaded” (making air), they draw massive spikes of electricity.
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The Benefit: Because the FLX drops to a lower, managed motor speed during its unload phase, the transition back to generating air is smoother. This prevents harsh electrical spikes, reducing wear and tear on electrical components and potentially lowering peak-demand charges on your utility bill.
5. Plug-and-Play Factory Floor Installation
Older or louder compressors require dedicated, isolated compressor rooms to manage noise and heat, which requires running long, expensive lengths of piping across the factory.
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The Benefit: The FLX’s soundproof canopy and integrated dryers (in the “Full Feature” models) mean the footprint is highly compact and quiet. You can install it directly on the factory floor near the actual point of use, which saves on expensive piping installations and reduces pressure drops across long pipe runs.
