The MA SD VS series comprises a range of compressors at variable speed with inverter. They are designed to optimize energy consumption when running at intervals. Direct-driven with an innovative separator tank device and the use of energy efficient motors, the compressors offer remarkable advantages in terms of user-friendliness, reliability, high energy savings, low noise levels and reduced maintenance costs. The series, installed in systems with discontinuous air consumption, ensures reduction of energy costs as it is able to adjust the speed of the electric motor revolutions and accordingly the speed of the airend based on the company consumption of compressed air keeping constant the running pressure of the plant. This operation mode saves energy by establishing an ideal balance between energy consumption and compressed air release. Compressors with inverter technology, controlling speed are capable of adjusting the release of compressed air to the real consumption. The electronic controller monitors and controls the electric motor and air-end speed, adjusting the airflow rate release, keeping steady the pressure in the plant.

COMPACT AIR-ENDS INTEGRATED IN JUST ONE SYSTEM
Manufactured with the objective of an efficient and long-lasting steady performance, all of our air-ends guarantee a better air flowrate with minimum energy consumption. Equipped with wearand-tear resistant bearings and highly sophisticated machined components  and these air-ends make an extremely low level of noise during their work phase and require very low maintenance costs. Top-notch pumping system with integrated unit allows extremely reduced overall dimensions, grouping together the following components:
• Oil-injected air-end
• Minimum pressure valve
• Thermostatic valve
• Intake valve
• Tank separato

DRIVING SYSTEM
Direct-driven compressors with a 1:1 ratio. This means that the airend and motor, directly connected via a coupling, rotate at the same speed. This not only reduces energy consumption and maintenance need, but it also decreases the level of noise. The use of highefficiency motors provide saving if compared to the performance of traditional compressors.

MOTOR CONTROL WITH INVERTER
The Inverter technology characterizes the MA SD VS series screw compressors. The electric rotation speed regulation system of the airend-engine group will follow the need of compressed air modifying the production depending on the request. Therefore the best optimization
of absorption of energy from the electric grid is achieved, in proportion to the production of compressed air required by the system.

ELECTRONIC CONTROL BOARD
Based on direct, user-friendly reading, it runs all the machine functions safely through a microprocessor, from control of safety alarms (oil temperature, electrical engine, control of cooling electrical fan, maintenance time) to command systems (startstop, alarm reset). The access to all microprocessor functions is protected by password (supplied only to authorized staff.

SYSTEM OF AIR PRE-FILTER AND VENTILATION
The series mounts a pre-filter that guarantees the utmost internal component protection, by filtering all the machine air intake. A high flow-rate electrical fan, almost noise-free, leads all the air flow into just one point, keeping up the right thermal balance for all the internal components.

AIR-OIL RADIATORS
Package model, with a wide exchange surface, designed to maintain a low level of flows and air even in an environmental condition with high temperatures. Vacuum-brazed radiators in aluminium alloy with highly efficient tubular parts.

SOUND INSULATION
Fitted with a professional grade double thickness soundproofing foam with fire retardant and oil resistant characteristics for maximum protection and easy cleaning.