ZR/ZT 200-355 VSD+ ZR 300kW-750kW & ZRZT 400kW-900kW VSD
Oil-free rotary screw compressors ZR & ZT
Features
- The Atlas Copco ZR and ZT series of oil-free rotary screw compressors represent top-tier industrial air solutions designed to maximize energy efficiency, protect process safety, and ensure absolute operational reliability. While the core compression technologies remain consistent across these high-capacity ranges, the key technical distinction lies in the cooling method: the ZR is water-cooled, whereas the ZT is air-cooled.The main features and benefits shared across the ZR/ZT 200-355 VSD, ZR 300 kW-750 kW, and ZR/ZT 400 kW-900 kW VSD product ranges are structured below.Core Technology and Air Quality
- Certified 100% Oil-Free Air: Certified to comply fully with ISO 8573-1 CLASS 0 standards. This eliminates any risk of lubricant contamination in critical processes like food and beverage, pharmaceuticals, electronics, and chemical manufacturing.
- World-Class Compression Elements: Feature next-generation rotary screw profiles with a highly durable, proprietary rotor coating. This ensures minimal clearance over extended lifetimes, preserving high volumetric efficiency.
- Advanced Element Cooling Jackets: Provide optimal temperature control inside the compressor stages to limit thermal expansion, reduce mechanical wear, and maintain long-term reliability.
- Corrosion-Resistant Stainless Steel Tubing: Used throughout the internal piping and cooler networks to eradicate contamination from rust and ensure leak-free operation.
Variable Speed Drive (VSD) Energy Savings- Dynamic Demand Matching: Integrated Variable Speed Drive technology automatically adjusts the motor speed to precisely match fluctuating air demands. This eliminates wasteful unload cycles and saves up to 35% on total energy consumption.
- Extended Capacity Regulation: VSD models provide full, linear flow regulation, safely adjusting from 30% up to 100% of the maximum rated compressor capacity.
- Integrated Drive Protection: Employs an electric motor and heavy-duty converter system designed specifically to work smoothly even at low operating speeds. This incorporates protected motor bearings and mechanical enhancements to operate below critical vibration levels across the entire speed spectrum.
- Stable Net Pressure Control: Automatically maintains a highly tight net pressure band within 0.10 bar, minimizing upstream pressure fluctuations and reducing system-wide leakage rates.
Mechanical Integrity and Environmental Protection- Robust Drive Motor: Outfitted with a Totally Enclosed Fan Cooled IP55-rated motor that guards against harsh workplace conditions including dust, moisture, and chemicals.
- Severe Ambient Adaptability: Engineered for continuous, around-the-clock operation under extreme environmental conditions, with frequency converter cubicles supporting ambient temperatures up to 50 degrees Celsius.
- High-Efficiency Filtration: A heavy-duty, two-stage dust removal intake filter captures 99.9% of particles down to 3 microns. This keeps pressure drop low while offering high-grade protection for downstream parts.
- Water Separator System: Incorporates an advanced labyrinth-style water separator that efficiently isolates condensate from compressed air, ensuring low moisture carry-over.
Intelligence, Integration, and Maintenance- Elektronikon Touch Monitoring: Equipped with a large high-resolution color touchscreen that supports multiple languages. It displays system data via intuitive icons, issues preventative maintenance warnings, and features integrated Ethernet-based remote communication.
- Complete Plug-and-Play Packages: Shipped as completely integrated, ready-to-use packages that contain all required internal piping, coolers, filtration, motor, lubrication, and control systems. This lowers installation time and footprint.
- Full Feature Adsorption Dryer (Optional): Can be configured as a Full Feature model containing an integrated IMD adsorption dryer. The dryer relies entirely on heat of compression rather than an external power source to eliminate moisture, dropping operational energy losses down to zero.
- Soundproof Canopy Design: Features an insulated canopy and integrated pulsation dampers that trap sound waves internally, yielding exceptionally low noise levels and minimal vibration
Benefits
The Atlas Copco ZR and ZT series oil-free rotary screw air compressors equipped with Variable Speed Drive technology deliver significant energy efficiency, operational reliability, and product safety for heavy industrial applications.
Core Energy Savings and VSD Benefits
- Up to 35% energy savings: VSD technology closely matches compressed air output to actual demand, eliminating energy waste from traditional fixed-speed unload cycles.
- Stable system pressure: Continuous motor speed adjustments keep your target air pressure steady, protecting sensitive downstream processes.
- No start-up current peaks: Soft-starting capabilities completely eliminate electrical current surges, allowing unlimited motor starts and stops.
- Reduced system leakage: Maintaining a lower overall system pressure inherently cuts standard piping leak losses by up to 10%.
Air Quality and Process Safety
- Certified 100% oil-free air: Compliance with ISO 8573-1 Class 0 standards guarantees absolute purity for contamination-sensitive sectors like pharmaceuticals, electronics, and food production.
- Zero risk of product damage: Eliminating oil vapor safeguards your final goods from staining, altering, or expensive batch spoilage.
- Eliminated oil-disposal costs: Oil-free compression paths remove the need to treat and dispose of oil-laden condensate water.
Engineering and Advanced Construction
- Superior rotor coatings: High-durability coatings on the screw elements ensure maximum thermal efficiency, minimal wear, and prolonged operational lifetime.
- High-efficiency cooling systems: Large, corrosion-resistant stainless steel coolers ensure excellent heat transfer and exceptionally low approach temperatures.
- Zero-loss condensate drains: Automated electronic water drains remove moisture from the air system without venting or wasting compressed air.
- Advanced Elektronikon Touch monitoring: Smart onboard controllers use integrated sensors to continually optimize speed, track maintenance intervals, and provide proactive safety warnings.
- Soundproof enclosure design: Integrated pulsation dampers and acoustic canopies lower factory decibel levels to create comfortable workspace environments.
Power Range Configurations
- ZR Series (Water-Cooled): Optimized for enclosed spaces and heavy continuous output. Water-cooled variants can utilize energy recovery systems to reclaim up to 94% of electrical heat for factory heating or sanitary hot water.
- ZT Series (Air-Cooled): Streamlines installation by removing water supply infrastructure, making it ideal for facilities prioritizing low footprint and quick plug-and-play setup.
