Pneumatic Conveying PM VSD Oil Free Screw Blower

A pneumatic conveying blower uses the kinetic energy of compressed air to transport powdered or granular materials through pipelines to designated locations.

The SPVC series Pneumatic Conveying PM VSD Oil Free Screw Blower adopts twin-screw internal compression technology, delivering pulsation-free, constant-pressure, and 100% oil-free clean air. Compared with roots blowers, it offers more stable pressure, lower temperature rise, and complete oil-free operation, preventing materials from caking, deteriorating, or clogging filter bags due to oil mist during conveying. It is suitable for dilute phase, dense phase, and positive pressure conveying processes, can run 24/7, and its pressure range precisely matches the requirements of pneumatic conveying systems (0.4-2bar).

Key Advantages for Pneumatic Conveying

100% Oil-Free – Protects Material Purity.

Dry-type oil-free twin-screw airend with TUV Class 0 certification. When conveying food, pharmaceutical, or chemical materials, no oil mist residue avoids product spoilage and pipeline blockage.

Constant Pressure & Pulsation-Free – Ensures Stable Conveying.

Permanent magnet VSD control keeps pressure fluctuation ≤±0.01MPa, eliminating the inherent discharge pulsation of roots blowers, allowing materials to move at a uniform speed in the pipeline, reducing pipe wear and material stratification.

30% Energy Saving vs. Roots Blower – Drastically Reduces Conveying Cost. 

The high efficiency of twin-screw internal compression, combined with the IE5 permanent magnet motor, delivers significant power savings at common pneumatic conveying pressures (0.6-1.2bar). Typically, the equipment investment is recovered within 12-24 months.

Low Noise – Improves Factory Environment. 

Fully enclosed soundproof cover + custom silencer, noise ≤72dB(A). Pneumatic conveying systems are often located near production workshops; the low-noise design avoids worker disturbance and environmental complaints.

High-Temperature Adaptability – Ensures Continuous Conveying. 

Cooling system designed for 52℃ ambient temperature, copper tube radiator, and independent oil pump forced lubrication. Even in hot summer workshops or when conveying high-temperature materials (e.g., cement clinker), it runs stably without shutdown.

IoT Smart Monitoring – Preventive Maintenance.

Standard IoT module enables real-time monitoring of blower pressure, temperature, bearing vibration, and running hours via mobile APP. Maintenance reminders and early warnings for filter clogging or bearing abnormalities help avoid sudden interruption of pneumatic conveying that could shut down the production line.

Technical Specifications

Exactly the same as the standard SPVC series. Below is a selection reference for common pneumatic conveying applications:

Note: Precise selection based on conveying distance, material density, and pipeline resistance is available. Contact sales for a calculation sheet.

Pneumatic Conveying Case Studies

A cement plant replaced its roots blower with the SPVC-132A for dense phase conveying of cement from the mill to the finished product silo. Pressure 1.2bar, conveying distance 400 meters. Result: 31% reduction in electricity cost, and oil-free air prevented cement caking, extending filter bag life by 50%. 

Certifications & Quality Assurance

● TUV Class 0 oil-free certification (suitable for food and pharmaceutical grade pneumatic conveying)

● CE certification (essential for export to Europe)

● ISO9001:2015 quality management system

● The factory is equipped with German KAPP grinding machines and CMM. Each blower undergoes an 8-hour simulated pneumatic conveying test before shipment. 

Comparison with Competitors (Pneumatic Conveying)

Why choose SEIZE as your supplier for pneumatic conveying blowers?

● 15 years of focus on energy-saving air compressors, two invention patents

● Free energy efficiency assessment and pipeline resistance calculation for pneumatic conveying systems

● Global service network, 24-hour response

● Customization supported (pressure, voltage, special coatings)

After-Sales Service for Pneumatic Conveying

● 2-year warranty on the complete machine, 5 years on the airend

● Start-up commissioning and operation training for pneumatic conveying systems

● Free optimization suggestions for conveying parameters (e.g., solid-to-air ratio, conveying velocity)

Packaging & Shipping

Moisture-proof wooden case packaging suitable for sea and land transport, with desiccant inside. Export documents include commercial invoice, packing list, certificate of origin, and CE certificate. Standard models ship within 15 days, customized models within 25-30 days.

FAQ for Pneumatic Conveying

Q1: Can this blower be used for pneumatic conveying of food-grade materials? Yes. It has TUV Class 0 certification and is 100% oil-free, meeting food safety requirements.

Q2: Will the pressure drop when the conveying distance is long? The SPVC series uses constant pressure VSD control, so pressure fluctuation is minimal. However, long-distance conveying requires reselection based on pipeline resistance; we can calculate it for you for free.

Q3: In pneumatic conveying systems, can this blower replace the Roots blower? Is the interface compatible? Absolutely. The connection sizes are the same (DN150-DN400), and no foundation changes are needed. We provide adapter flanges.

Q4: How to prevent the material from flowing back into the blower during the conveying process? We recommend installing a check valve and pressure relief valve at the outlet. SEIZE can provide a full set of optional pneumatic conveying accessories.

Q5: What should I do if there is insufficient pressure during the warranty period? We respond within 4 hours and arrive on-site within 24 hours. Common causes are filter clogging or pipeline leaks; we will guide or send technicians to resolve.

Customization & Process Flow

● For special pneumatic conveying needs, we offer the following customizations:

● Outlet pressure customization up to 2.5bar (for ultra-long distance conveying)

● Explosion-proof motor and explosion-proof electrical control (for conveying flammable powders such as coal dust or aluminum powder)

● Special coatings (anti-adhesion, acid/alkali resistant)

● Integrated silencer and soundproof enclosure (meets residential noise standards)

Real User Experience

“We used to use roots blowers for plastic pellet conveying, which caused severe pellet breakage and many customer complaints. After switching to SEIZE’s SPVC-55A, the breakage rate is nearly zero, and electricity costs have dropped significantly. What we appreciate most is their after-sales service – they proactively remind us before each maintenance.” – Production Manager, Guangdong Modified Plastics Company

“Pressure fluctuation is the biggest fear in pneumatic conveying because it causes pipeline blockages. SEIZE’s VSD oil-free blower maintains very stable pressure – we have never experienced a pipeline blockage while conveying cement.” – Equipment Section Chief, Anhui Cement Plant

Purchase Intent Q&A

Q: Where can I buy a Pneumatic Conveying PM VSD Oil Free Screw Blower in China? You can contact SEIZE Compressor (Shanghai) Co., Ltd. directly. We are the original factory. Email: info@seize-air.com, Tel: +86-21-67290898.

Q: What is the price for a pneumatic conveying screw blower? Price depends on power, pressure, and customization requirements. As a China Manufacturer, we offer competitive factory prices. Please provide your conveying parameters for an accurate quotation.

Q: Can this blower be used for dense phase conveying of abrasive materials like sand? Yes, but special coatings and wear-resistant rotors are recommended. We have specific models for abrasive materials.

Q: Do you provide installation and commissioning for overseas projects? Yes, we can dispatch engineers overseas for on-site installation and commissioning (additional cost). Remote video support is also available.