Screw compressors MARK

Technology of screw compressors

The basis of every screw compressor is a good screw block, from whose quality the quality of the whole machine derives. The screw block is formed by two screw rotors with an asymmetric profile, which rotate against each other and compress the air volumetrically. By using this method of compression the user gains many advantages:

compression is significantly more efficient than with piston compressors, which shows in significantly lower operating costs thanks to rotary compression the service life of screw compressors is significantly higher and the compressors can be used for continuous load compression is even and there is no fluctuation of the outlet pressure; the outlet temperature from the screw compressor is significantly lower (max. 10 °C higher than the temperature of the intake air), which significantly limits the formation of moisture in the compressed air screw compressors have a significantly lower noise level; you can place them directly next to the equipment and save on expensive piping systems

With a screw compressor you save!

Despite the higher acquisition value, with a screw compressor you save! The higher your consumption and the longer the period of compressed air off-take, the greater the savings you will achieve. MARK screw compressors are available from a power input of 2,2 kW and make it possible even for small craft workshops to discover the advantages of the screw compressor concept. The investment in a screw compressor and modern technology definitely pays off!

Piston or screw compressor?

The concept of the screw compressor

The screw compressor is a significantly more complex device than the piston compressor. All the components that you will find on MARK machines are manufactured exclusively by renowned brands, are carefully tested and proven. With MARK compressors you always have the certainty of first-class quality for a long service life and maximum reliability of the machine.

Practical assemblies for saving space

Each of us struggles with a lack of space in our operation. The technology needed to produce compressed air has long consisted not only of the compressor, but for the high quality of the final products and the image of your firm you need a whole range of equipment for air treatment.

The concept of design assemblies of the firm MARK, used on machines with smaller outputs, makes it possible to integrate literally everything necessary into one machine. On an area smaller than 1 m2 you can have placed: compressor, pressure vessel, refrigeration dryer, two filters, bypass piping and fully automatic condensate draining. Everything is moreover assembled by the manufacturer, designed so that inside the machine no unnecessary losses occur as a result of pressure drop, and ready for immediate use. It is enough only to connect it to the electrical network and the piping system and you do not have to install anything more. Enjoy all the advantages of practical assemblies and save unnecessary costs and space in your workshop!

Dryer For removing condensate from the compressed air in accordance with European environmental regulations. Use of ecological refrigerants, with bypass piping for the possibility of a shutdown. The dryer ensures for the equipment a low dew point, less frequent maintenance and high reliability.

Filters and bypass piping Thanks to the filters it is possible to eliminate dust and oil particles down to a filtration grade of 0,01 μm and to a residual oil level of 0,01 mg/m³ On the machine there is also the possibility of using the bypass piping of the dryer during a shutdown and still having filtered air All condensate from the dryer, filters and vessel is centrally collected at one point and automatically drained

Economical control of the compressor run

On MARK screw compressors several types of modern electronic control units are used, which allow advanced operation of the machine with an emphasis on energy savings, signalling of possible faults and pleasant user operation. The control units of the firm MARK are primarily intended for efficient control over the running of the machine and achieving maximum savings. In the units sophisticated programmes are installed, which analyse the working cycles of the machine, evaluate them independently and bring the running of the compressor into the most advantageous mode from the point of view of energy consumption. The basis for savings is the reduction of the number of unnecessary, energy-demanding starts and the maximum elimination of idling, when the compressor only consumes electrical energy and at the same time does not produce compressed air.

Principles of the economy programmes:

Functions and possibilities of the control units:

they control all operations for running the machine such as running under load, idling or stopping they are equipped with signalling for possible faults and emergency states – overheating of the machine, high pressure, checking the direction of rotation and the like they automatically stop the run of the compressor in the event of a fault they are equipped with buttons for access to the menu for setting the unit and displaying the required information on them you will find the display of values in the form of LED signalling, a digital display or a graphic interface they make it possible to control efficiently the running of several machines, the communication between them and remote monitoring or control they automatically display the requirements for carrying out service and record information about emergency states

Variable speed control IVR for even greater savings!

If you are buying a compressor, consider carefully its energy intensity. You will in fact operate it for a long
time and the costs of its operation significantly outweigh the value of the initial investment. It definitely pays off to put more money into a more expensive but significantly more efficient compressor!

Traditional compressors with on-off type control have a fixed speed and always produce the same amount of air regardless of its consumption, which is not constant. With such a method of control, however, you will not avoid states such as frequent switching with start-up of the machine with a high energy peak and idling, when air is not produced but only electrical energy is consumed.

Service and spare parts

Every compressor deserves perfect maintenance and appropriate service. Your production and the running of the firm come first.
Without a functioning compressor you do not have the necessary compressed air. It is therefore extremely important to devote due care to the compressor. With MARK compressors we have all the solutions ready for reliable operation!

Easy access into the machine

All MARK compressors are constructed and designed with a view to the easiest possible access to the parts and allow a fast and comfortable service intervention without unnecessary delays.

Top-quality original spare parts

If you are buying a MARK machine, you have the certainty that all components are exclusively branded and of high quality, which shows in performance and reliability. All supplied spare parts and oils for MARK screw compressors undergo strict inspection and hard supervision by the manufacturer and bear the designation ORIGINAL PART. Only with such parts do you have the certainty of 100% functionality and reliability. Therefore demand during maintenance and service intervention only original spare parts marked with the appropriate symbol. In your car you likewise do not want cheap and unreliable parts and poor-quality fuel or oil... Your compressor deserves it!

A warranty of up to 5 years !

On MARK screw compressors we provide a standard warranty period of 2 years from the installation of the machine. On signing a contract for regular maintenance with our authorised service centre when purchasing the machine, you can obtain an extended warranty optionally for a period of 3 or 5 years. Your machine will be duly and professionally cared for, you will have reliable operation ensured without disruption of production by unexpected failures in the air supply, and on top of that you will gain an extension of the warranty.