Greentech International (Zhangqiu) Co., Ltd is the professional roots blower supplier. Series M Roots Blower (also called Positive Displacement Blower - PD Blower, or Rotary Blower) with tri-lobe are heavy duty style new products which technology is from America. It is the replacement for Duroflow models of Gardner Denver, RAM/RCS models of Dresser Roots, and RBS models of Robuchi.

Features:
Low noise tri-lobe rotor
Noise-reduction know-how application for casing
Integral-shaft ductile iron impellors
Dual splash lubrication
Over sized cylindrical roller bearings
Hardened teeth face for precision helical timing gear, taper-lock shaft mounting
Versatile configuration
Piston ring air seals
Lip type viton oil seals
Air cooling
Automatic belt tensioner and integrated discharge silencer base frame application for the blower package.
Duty:
Pressure to 103 KPa / Vacuum to -51 KPa
Flow: 4.4~102.8m3/min
Application:
Widely used in waste water treatment, petro-chemical, cement, power, metallurgy and pneumatic conveying diverse industries.

Heavy duty,oversized bearings designed for longer L10 life in industrial applications.

·Dual-splash aluminum tank design ensures gear and bearing longevity.

·One piece integrated ductile iron rotorsand shafts, large shaft diameters, one piece high strength housing, and one piece end plates reduce torsion and

vibration.

· Housings are designed for horizontal or vertical mounting configurations.

·Multi-piston ring air and oil seals minimize maintenance costs and ensure delivery without oil and air crosscontamination.

·Viton lip oil seals with o-rings prevent oil leakage.

·Wearable shaft seeves prevent oi leakage past drive shaft and extends shaft life.

· The innovative Tri-Lobe rotor profile and advanced housing design reduce noise and vibration.

I. Environmental Protection and Wastewater Treatment

• Application Scenarios: Sewage aeration, biogas pressurization and delivery, flue gas desulfurization aeration, etc.

• Core Advantages:

• Stable Air Supply: Constant flow output meets the continuous aeration demands of wastewater treatment.

• Corrosion-Resistant Design: Materials can be customized for corrosive gases (e.g., biogas), extending service life.

• Low Maintenance Cost: Gearbox and impeller are directly driven, eliminating the need for complex lubrication systems.

II. Chemical Industry and Gas Delivery

• Application Scenarios: Conveying flammable, explosive, or corrosive gases (e.g., hydrogen, sulfur dioxide), vacuum packaging, reactor air supply.

• Core Advantages:

• High Sealing Performance: Utilizes mechanical seals or dry gas seals, offering high leak prevention safety.

• Explosion-Proof Options: Motors and housing can be customized with explosion-proof configurations, complying with chemical safety standards.

• Tolerance for Impurities: Better tolerance for gases containing small amounts of dust or liquid droplets compared to centrifugal fans.

III. Aquaculture and Aeration

• Application Scenarios: Pond aeration, industrialized recirculating aquaculture systems (RAS), aeration for hatchery tanks.

• Core Advantages:

• High Oxygen Transfer Efficiency: High-pressure airflow penetrates water depth, enhancing oxygen dissolution efficiency.

• Resistance to Humid Environments: High protection rating (e.g., IP55), suitable for the hot and humid conditions of aquaculture farms.

• Continuous Operation Capability: Supports 24/7 uninterrupted operation, meeting the demands of high-density farming.

IV. Food and Pharmaceutical Industries

• Application Scenarios: Food packaging air supply, fermentation tank aeration, material conveying (e.g., grains, powders).

• Core Advantages:

• Food-Grade Compliance: Oil-free models are available to prevent medium contamination, meeting FDA/GMP requirements.

• Precise Pressure Control: Stable output pressure ensures consistency in packaging or process operations.

• Easy-to-Clean Design: Some models feature anti-corrosion coatings on surfaces, supporting quick cleaning.

V. Power and Metallurgical Industries

• Application Scenarios: Pulverized coal conveying, blast furnace blasting, electrostatic precipitator air supply, desulfurization oxidation fans.

• Core Advantages:

• High-Temperature Resistance: Special models can handle gas mediums at 80°C~150°C.

• High-Pressure Adaptability: Maintains efficient operation under high-pressure conditions (e.g., 9.8~98 kPa).

• Heavy-Duty Design: Reinforced bearing and gear configurations suit the continuous heavy-duty operations of the metallurgical industry.

VI. Light Industry and Textile Industry

• Application Scenarios: Loom pneumatic source, plastic pellet conveying, printing press vacuum adsorption.

• Core Advantages:

• Low Vibration and Low Noise: Optimized gear precision and housing design make them suitable for workshop environments.

• Energy Efficient and Economical: Lower energy consumption than some centrifugal fans in small to medium flow conditions.

• Modular Design: Facilitates quick part replacement, minimizing downtime.