Products
Atlas Copco Oil free tooth Compressor (15-45KW & ZR30-45kw)
Product Description
ZT/ZR – Atlas Copco Oil free tooth Compressors (Model: ZT15-45 & ZR30-45)
The ZT/ZR is a standard Atlas Copco Two-stage rotary Oil free motor driven Compressor, based on tooth technology, for producing ‘Class Zero’ certified Oil free air as per ISO 8573-1.
The ZT/ZR is built according to proven design standards and is suitable for industrial environment. The design, materials and workmanship ensure of the best available quality and performance.
The ZT/ZR is offered in a silenced canopy and it includes all necessary controls, internal piping and fittings to deliver oil free Compressed Air at desired pressure.
ZT are air-cooled and ZR are water-cooled. ZT15-45 range is offered in 6 different models viz., ZT15, ZT18, ZT22, ZT30, ZT37 and ZT45 with flow ranging from 30 l/s to 115 l/s (63 cfm to 243 cfm).
ZR30-45 range is offered in 3 different models viz, ZR30, ZR37 and ZR 45 with flow ranging from 79 l/s to 115 l/s (167 cfm to 243 cfm)
Pack compressors are built up with following major components:
• Inlet silencer with integrated air filter
• Load/no-load valve
• Low-pressure compressor element
• Intercooler
• High-pressure compressor element
• Aftercooler
• Electric motor
• Drive coupling
• Gear casing
• Elektronikon regulator
• Safety valves
Full-Feature compressors are additionally provided with an air dryer which removes moisture from the compressed air. Two type of dryers are available as option: Refrigerant-type dryer (ID dryer) and an adsorption-type dryer (IMD dryer).
All compressors are so-called WorkPlace Air System compressors, which means they operate at a very low noise level.
The ZT/ZR Compressor consist of the following:
Air / Oil Flow
Air drawn in through air filter and the open inlet valve of the unloader assembly is compressed in the low-pressure compressor element and discharged to the intercooler . The cooled air is further compressed in the high-pressure compressor element and discharged through the aftercooler. The machine controls between load and unload & machine restarts with smooth operation.
ZT/ID
ZT/IMD
Product photo
Condensate Drain system
Compressor: Two condensate traps are installed on the compressor itself: one downstream of the intercooler to prevent condensate from entering the high-pressure compressor element, the other one downstream of the aftercooler to prevent condensate from entering the air outlet pipe.
Dryer: Full-Feature compressors with an ID dryer have an extra condensate trap in the heat exchanger of the dryer. Full-Feature compressors with an IMD dryer have two additional electronic water drains.
Electronic water drains (EWD):The condensate is collected in the electronic water drains.
The benefit of EWD is, it is No air loss drain. It opens only once condensate level is
reached thus saving compressed air.
Oil System
Oil is circulated by pump from the sump of the gear casing through oil cooler and oil filter Towards the bearings and the gears. The oil system is equipped with a valve that opens if the oil pressure rises above a given value. The valve is located before the oil filter housing. It is important to note that in the complete process no oil comes in contact with the Air, hence ensures complete oil free air.
Cooling System
ZT compressors are provided with an air-cooled oil cooler, an intercooler and an aftercooler . An electric motor driven fan generates the cooling air.
ZR compressors have a water-cooled oil cooler, an intercooler and an aftercooler. The cooling system includes three parallel circuits:
• The oil cooler circuit
• The intercooler circuit
• The aftercooler circuit
Each of these circuits has a separate valve to regulate the water flow through the cooler.
DIMENSIONS
FEATURES & BENEFITS
| Energy Savings | |
| Two stage tooth element | Lower energy consumption compared to single stage dry compression systems.Minimum power consumption of the unloaded state is reached rapidly. |
| Integrated Dryers with Saver cycle technology | Reduces the energy consumption of the integrated air treatment in light load conditions. Water separation is improved. Pressure Dew Point (PDP) becomes more stable. |
| Fully Integrated & Compact design | Controller to ensure optimum efficiency and reliability. Ensures compliance with your air requirements and makes the best use of your valuable floor space. |
| Quite Operation | |
| Radial Fan | Ensures that the unit is cooled effectively, produces as little noise as possible. |
| Intercooler and After cooler with vertical layout | The noise levels from the fan, motor and element have been drastically reduced |
| Sound insulated canopy | No separate compressor room is required. Allows for installation in most working environments |
| Highest Reliability | |
| Robust Air filter | Offers a long lifetime and high reliability for long service intervals and low maintenance needs. Air filter is very easy to replace. |
| Electronic Water Drains are mounted vibration free and have large diameter drain port. | Constant removal of condensate.Extends your compressor’s lifetime.Provides trouble-free operation |
Material and Spec of Main Components
● Inlet silencer with integrated air filter
Filter: dry paper filter
Silencer: sheet metal box (St37-2). Coated against corrosion
Filter: Nominal air capacity: 140 l/s
Resistance against -40 °C to 80 °C
Filter surface: 3,3 m2
Efficiency SAE fine:
Particle size
0,001 mm 98 %
0,002 mm 99,5%
0,003 mm 99,9 %
● Inlet throttle valve with integrated unloader
Housing: Aluminium G-Al Si 10 Mg(Cu)
Valve: Aluminium Al-MgSi 1F32 Hard Anodised
● Oil-free low-pressure tooth compressor
Casing: Cast iron GG 20 (DIN1691), compression chamber Tefloncoated
Rotors: stainless steel (X14CrMoS17)
Timing gears: low alloy steel (20MnCrS5), case hardening
Gear cover: cast iron GG20 (DIN1691)
Intercooler with integrated water separator
Aluminium
● Intercooler (water-cooled)
254SMO – corrugated brazed plates
● Water separator (water-cooled)
Cast aluminium, both sides painted in grey，polyester powder
Maximum working pressure: 16 bar
Maximum temperature: 70°C
● Electronic condensate drain with filter
Maximum working pressure: 16 bar
● Safety Valve
Opening pressure: 3.7 bar
● Oil-free high-pressure tooth compressor
Casing: Cast iron GG 20 (DIN1691), compression chamber Tefloncoated
Rotors: stainless steel (X14CrMoS17)
Timing gears: low alloy steel (20MnCrS5), case hardening
Gear cover: cast iron GG20 (DIN1691)
● Pulsation damper
Cast iron GG40, corrosion protected
● Venturi
Cast iron GG20 (DIN1691)
● Check valve
Stainless-steel spring-loaded valve
Housing: Cast iron GGG40 (DIN 1693)
Valve: Stainless steel X5CrNi18/9 (DIN 17440)
● Aftercooler with integrated water separator
Aluminium
● Aftercooler (water-cooled)
254SMO – corrugated brazed plate
● Bleed-off silencer (muffler)
BN Model B68
Stainless-steel
● Ball Valve
Housing: Brass, nickel plated
Ball: Brass, chrome plated
Spindle: Brass, nickel plated
Lever: Brass, painted black
Seats: Teflon
Spindle sealing: Teflon
Max. working pressure: 40 bar
Max. working temperature: 200 °C
● Oil sump/gear casing
Cast iron GG20 (DIN1691)
Oil capacity approximately: 25 l
● Oil cooler
Aluminium
● Oil filter
Filter medium: inorganic fibers, impregnated and bounded
Supported by steel mesh
Maximum working pressure: 14 bar
Temperature resistant up to 85°C continuous
● Pressure regulator
Mini reg 08B
Maximum flow: 9l/s
