China Oil Free Screw Blower Factory & Exporter in Greece

A conventional Roots blower is an external compression machine: air is sucked into lobes at atmospheric pressure and pushed without compression into the discharge pipe, where sudden back-flow causes high-energy shock waves, intense heat, and high turbulence. In contrast, Honest Compressor twin-screw blowers feature asymmetric helical rotors with internal compression. Air is compressed smoothly inside the rotor flutes before being discharged at the exact required process pressure (0.3 to 1.2 bar). By avoiding back-flow shocks and lowering internal discharge temperatures, isentropic efficiency jumps from 50% (Roots) to over 80% (Screw). Over 8,000 running hours a year under Greek industrial tariffs (€0.15/kWh), a 55kW screw blower reduces annual electrical overhead by approximately €18,500.

Our oil-free screw blowers are certified to ISO 8573-1 Class 0, the most stringent compressed air purity standard worldwide. The compression chamber is completely dry. Lubricating oil for the timing gears and bearings is separated from the compression zone by a multi-stage seal design comprising stainless-steel labyrinth seals, carbon ring seals, and an atmospheric neutral chamber with positive air purging. Even in the event of an internal seal degradation, oil cannot overcome the atmospheric differential pressure to penetrate the air compression cavity, preventing any risk of chemical contamination in delicate aquaculture raceways or olive oil processing streams.

Yes. Standard units engineered for Greece incorporate tropicalized packages specifically rated for 48°C ambient temperatures. Motors are IP55 totally enclosed fan-cooled (TEFC) or permanent magnet synchronous motors with Class F insulation and Class B temperature rise. The intake air filters feature a pre-filtration cyclonic housing to remove coastal sand and airborne dust, while the rotor surfaces are treated with a proprietary corrosion-resistant PTFE coating capable of resisting saline atmospheric mist along Greek island and coastal sites (e.g., Piraeus, Patras, Corinth, Crete).

Standard production lead time for standard blower units (11kW to 110kW) is 15 to 25 working days. Ocean freight from Shanghai Port directly to Piraeus Container Terminal (PCT) via COSCO Shipping takes 22 to 26 days on the water. All export units are crated in export-grade fumigated wooden cases with comprehensive documentation provided: Bill of Lading, Commercial Invoice, Packing List, Certificate of Origin (Form A or standard COO), CE Declaration of Conformity, and ISO 1217 Performance Test Certificates. This guarantees immediate, frictionless customs clearance by your Greek freight forwarder.

Each blower unit comes factory-fitted with a smart PLC touchscreen controller featuring integrated RS-485 Modbus RTU / Modbus TCP, Profibus-DP, or Ethernet/IP communication protocols. This allows immediate handshaking with SCADA systems utilized by municipal water authorities (such as EYDAP in Athens or EYATH in Thessaloniki). The blower modulates speed dynamically between 25% and 100% rated capacity based on 4-20mA real-time feedback from Dissolved Oxygen (DO) probes in biological aeration tanks, maintaining optimal bacterial metabolism without wasting a single kilowatt of excess aeration.

We provide comprehensive OEM/ODM engineering support, including 3D CAD drawing packages, foundation load diagrams, and virtual commissioning supervision via video link with our senior mechanical engineers. Maintenance consumable kits (air filters, synthetic timing gear lubricant, seal packs) are packed for 2-year and 5-year maintenance intervals. For critical municipal or EPC projects in Greece, factory-trained technical field engineers can be dispatched for on-site commissioning, acoustic dampening verification, and flow rate validation at Greek project sites.