Atlas Copco Compressors. Product Description: ZR200-315 VSD Classic

ATLAS COPCO ROTARY OIL-FREE SCREW AIR COMPRESSOR

I. Brief/general description

The Atlas Copco ZR 200-315 VSD Classic powers your production with ultimate reliability and efficiency under the harshest conditions. The first air compressors in the world to be certified CLASS 0 according to ISO 8573-1 edition 2, 2010; they ensure completely oil-free air to protect your process and end products..

II. Feature and Benefit

Highest reliability

- For over 50 years, Z compressors stand for durability and reliability.  They incorporate Atlas Copco’s proven screw technology, stainless steel coolers, AGMA A5/DIN 5 gears and state-of-the art electrical drive systems, all of which contribute to the high reliability of your equipment and your superior productivity.

Certified 100% oil-free

- ZR 200-315 VSD Classic compressors provide you with 100% pure, clean air that complies with ISO 8573-1 CLASS 0 (2010) certification.  CLASS 0 means zero risk of contamination; zero risk of damaged or unsafe products; zero risk of losses from operational downtime and zero risk of damaging your company’s hard-won professional reputation.

Maximum energy savings

- Atlas Copco’s unique and time proven rotor coating ensures high efficiency over the compressors lifetime. The state-of-the art air compressor element is powered by a high-efficiency electric motor, contributing to maximum compressor package efficiency and consequently lower energy costs.

Easy installation

- The integrated design of the ZR200-315 VSD Classic compressor includes internal piping, coolers, motor, lubrication and control system: all supplied as a ready-to-use package.  Installation is fault-free, commissioning time is low and no external instrument air is required.

Advanced control and monitoring

- To maximize efficiency and reliability, the Elektronikon® controls the main drive motor and regulates system pressure within a predefined and narrow pressure band.

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III. Components

The superior Oil Free screw Element

Reliability

• Superior Teflon rotor coating

• Balance piston on high pressure stage

• Four high precision ball bearings per stage (8 bearings in total)

Efficiency

• Superior rotor coating with running in capabilities

• Liquid cooled element jackets

• Atlas Copco’s proprietary asymmetric rotor profile

Air Quality

• Certified 100% Oil-free air

• Floating ring stainless steel Air seals

• Wind back type oil seal

• Venthole separating air and oil-seals

The reliable element intake protection

Reliability

• High efficiency filter

• Pressure differential protection

• Large dust holding capacity

Efficiency

• Low pressure drop – 10mbar

Air Quality

• 99.5% efficiency at 1 micron particle size

Main drive motor

Reliability

• IP55 TEFC motors

The reliable and efficient water cooling system

Reliability

• Superior Stainless Steel tubes as standard

• Internally and externally coated cast iron casing

• Welded tube-endplate connection

Efficiency

• Compact integrated design guaranteeing extreme low pressure drop

• Aluminium star insert results in very low cooler approach temperatures

Air Quality

• Low water load to dryers

• No rust particles in compressed air due to stainless steel tubes

Control and monitoring system

Reliability

• Dedicated compressor controller

• Full control and monitoring > 100.000 references in the market

• Protection – service and shutdown warnings

• External communication – possibility to remotely monitor and control

Efficiency

• Load/ Unload regulation

• DSS: Delayed Second Stop function will stop the motor whenever possible

• Full compatibility with ES systems (Energy savers) and connectivity

Up to 31 languages are supported by the Elektronikon® control!

Patented gearbox breather system

Reliability

• No external power supply required

Air Quality

• No oil fumes inside canopy

• Oil is separated and flows back to gear casing

IV. Flow diagram (working principle)

The air (blue) is drawn into the compressor through the inlet filter (1) where the air is cleaned,the air come into the first compression stage (3) the air pressure is raised to the intermediate pressure after which the air is cooled down in the intercooler (4). After the intercooler the air passes through a moisture separation system (5) before entering the high pressure stage (6).

In the high pressure stage the pressure is brought to the final pressure. The air at the outlet of the high pressure stage goes via the pulsation damper with integrated check valve (7) to the aftercooler (8) where it is cooled down and moisture is separated and evacuated. Compressed air leaves the compressor through the outlet connection flange (9).

The yellow flow is the oil path within the compressor where the oil pump (10) sucks oil from the oil sump and pumps it through the oil cooler (11) and high pressure element (6) and low pressure element (3), and then go to a high efficiency filter (12) to give cool clean oil to the bearings and the gears; then the oil flows back to the gear casing.

V. Standard scope of supply

• Sturdy base frame with integrated forklift slots

• Sound insulated sheet metal canopy

Air Circuit

• Air inlet silencer

• Inlet Air filter

• Low pressure element

• High pressure element

• Water-cooled inter-cooler with stainless steel tubes

• Water-cooled after-cooler with stainless steel tubes

• Water separators with moisture trap

• Electronic drains

• Pressure safety valves

• Pulsation damper with absorption

• Check valve

• DIN or ANSI connecting flanges

Drive system and oil system

• IP55 TEFC main drive motor

• Flexible rubber coupling

• Coupling housing

• Integrated positive displacement oil pump

• Oil level sight glass

• High efficiency oil filter

• Stainless steel oil cooler

• Oil pressure regulating valve

• Gearbox breather system

• Gear box with precision step up gears

Control & monitoring

• Elektronikon® microprocessor controller

• Star Delta starting system with overload protection

• Pressure and temperature sensors

• Solenoid control for throttle valve