Twin Lobe Air Blower Supplier in Aurangabad

What Is a Twin Lobe Rotary Air Blower?

A twin lobe rotary air blower is a positive displacement machine that delivers a fixed volume of air per revolution, regardless of discharge pressure (within its rated range). Unlike centrifugal blowers that produce variable flow based on system resistance, twin lobe blowers guarantee volumetric delivery, making them indispensable for applications where a consistent air supply is critical — such as aeration in effluent treatment plants (ETPs) and sewage treatment plants (STPs).

JBM Equipments is a twin lobe air blower supplier in Aurangabad, serving industrial units across Waluj MIDC, Chikalthana MIDC, Shendra AURIC, and the wider Marathwada region.

Working Principle

The blower consists of two figure-eight-shaped (bi-lobed) rotors mounted on parallel shafts inside a precision-machined housing. The rotors are synchronised by a pair of timing gears so they rotate in opposite directions without contact. As each lobe sweeps past the inlet port, it traps a pocket of air between itself and the casing, carries it around to the outlet port, and pushes it into the discharge pipe against the system backpressure.

Because the rotors never touch each other or the casing, the blower operates oil-free on the air side. Lubrication is required only for the timing gears and bearings, which are isolated from the air path by mechanical seals. This oil-free delivery is essential for aeration, where oil contamination would inhibit biological activity in the treatment process.

Everest Blowers — Brand Overview

Everest Blowers Pvt. Ltd. is an ISO 9001 certified Indian manufacturer based in Delhi with over three decades of experience in positive displacement blower technology. Their twin lobe blowers are manufactured on CNC machines with involute-profile rotors for minimum slip and vibration. Key differentiators include:

• Dynamically balanced rotors certified to ISO 1940 G2.5 grade, ensuring smooth operation and long bearing life.
• Hardened and ground timing gears (case-hardened alloy steel) for accurate synchronisation over the entire service life.
• Heavy-duty spherical roller bearings rated for L10 life exceeding 60,000 hours.
• Splash lubrication system eliminating the need for an external oil pump or force-feed lubrication.
• Standard compliance with IS 14795 / ISO 1217 for performance testing.

As an Everest twin lobe blower dealer in Maharashtra, JBM Equipments provides the full Everest product range along with spares and service support.

Specifications and Capacity Range

Everest twin lobe blowers are available in a wide range of sizes to suit applications from small aquaculture ponds to large municipal STPs:

• Flow range — 25 m3/hr to 6,000 m3/hr (free air delivery at rated speed and zero gauge pressure).
• Pressure range — up to 1.0 kg/cm2 (gauge) for standard models. Higher pressures up to 2.0 kg/cm2 available in heavy-duty series.
• Speed range — 750 to 3,000 RPM depending on frame size and required flow.
• Motor power — 1 HP to 250 HP, with IE3 energy-efficient motors as standard.
• Temperature — discharge air temperature rises approximately 40 to 60 degrees C above ambient at 0.5 kg/cm2 pressure.

Applications

ETP Aeration

Biological treatment in effluent treatment plants relies on a steady supply of fine-bubble air to maintain dissolved oxygen (DO) levels above 2 mg/L. Twin lobe blowers feed air through diffuser grids at the bottom of aeration tanks. In Waluj MIDC and Chikalthana MIDC, where pharmaceutical, automotive, and food processing industries operate ETPs ranging from 50 KLD to 2,000 KLD, twin lobe blowers are the standard aeration source.

STP Aeration

Municipal and institutional sewage treatment plants using the sequential batch reactor (SBR), moving bed biofilm reactor (MBBR), or activated sludge process (ASP) require aeration blowers sized for 4 to 8 Nm3 of air per kg of BOD to be removed. Twin lobe blowers deliver this reliably with constant volume regardless of diffuser fouling or tank level variations.

Pneumatic Conveying

Blowers provide the motive air for transporting dry bulk materials — cement, fly ash, PVC powder, sugar, and grain — through pipelines. Typical conveying pressures are 0.3 to 0.8 kg/cm2, well within the twin lobe blower range. Industries in MIDC Aurangabad use pneumatic conveying for in-plant material transfer and silo filling.

Aquaculture

Fish and shrimp farms require aeration to maintain DO above 5 mg/L. Twin lobe blowers connected to diffuser hoses or stone diffusers provide uniform oxygen distribution across ponds. Their oil-free delivery ensures no contamination enters the water body.

Other Applications

• Backwash air scouring in water treatment filters.
• Vacuum applications (roots vacuum pumps) for moulding and packaging.
• Gas boosting in biogas plants and landfill gas collection systems.
• Fluidisation of cement and powder in silos.

Blower Package Components

A complete twin lobe blower package from JBM Equipments includes:

• Blower unit — Everest twin lobe rotary blower with cast iron housing, alloy steel rotors, and timing gears.
• Electric motor — IE3 rated, foot-mounted, with class F insulation. Motor rating matched to blower duty point with 10% service factor.
• Common baseframe — fabricated MS channel frame with anti-vibration mounts, accommodating both blower and motor.
• Drive system — V-belt drive with adjustable motor slide rails for belt tensioning, or direct coupling for larger models. Belt guard as per factory safety norms.
• Inlet silencer — absorptive type with filter element to prevent dust ingress. Reduces inlet noise by 15 to 20 dB(A).
• Discharge silencer — reactive type to attenuate pulsation noise on the pressure side.
• Non-return valve (NRV) — prevents backflow of process air/water into the blower when it stops.
• Pressure relief valve — set at 10% above operating pressure to protect the blower from overpressure if the discharge line is blocked.
• Pressure gauge and flexible connector — for monitoring and vibration isolation.

Sizing Parameters

To receive an accurate quotation from JBM Equipments, provide the following information:

• Required air flow — in m3/hr or CFM (free air delivery, referenced to inlet conditions).
• Required pressure — in kg/cm2 or bar (gauge). For aeration, this is the water depth above the diffuser plus pipe losses, typically 0.3 to 0.5 kg/cm2.
• Application — ETP/STP aeration, pneumatic conveying, vacuum, or other.
• Operating hours — continuous or intermittent duty. Continuous duty requires blowers with enhanced cooling and oversized bearings.
• Ambient temperature — affects air density and therefore motor power requirement. Aurangabad summer temperatures exceeding 42 degrees C require derating.
• Site elevation — altitudes above 1,000 metres reduce air density and blower output.

Noise Control Measures

Twin lobe blowers generate noise in the range of 85 to 100 dB(A) at 1 metre distance. In populated areas or near office buildings, noise control is mandatory. Effective measures include:

• Acoustic enclosure — a sheet-metal enclosure lined with 50 mm mineral wool with perforated inner skin reduces noise by 20 to 25 dB(A). Ventilation louvres with acoustic baffles maintain cooling airflow.
• Inlet and discharge silencers — properly sized silencers reduce airborne noise at source.
• Anti-vibration mounts — spring or rubber isolators on the baseframe prevent structural vibration transmission to the building.
• Separate blower room — housing blowers in a dedicated room with acoustic treatment on walls and ceiling isolates noise from the plant.

For comparison between twin lobe and roots blower configurations, read our detailed article on roots blowers for Chandrapur industries.

JBM as Everest Blower Dealer in Aurangabad

JBM Equipments is a twin lobe air blower supplier in Aurangabad and an Everest twin lobe blower dealer in Maharashtra. We offer:

• Complete Everest blower packages — sized, quoted, and delivered to your site with all accessories.
• Replacement blowers for existing ETP and STP installations — we match the existing foundation and pipe connections.
• Spare parts — rotors, timing gears, bearings, seals, silencer elements, and belt sets from Everest's authorised supply chain.
• Blower repair and reconditioning — rotor re-machining, housing re-boring, and complete reassembly with factory-specification clearances.
• AMC and preventive maintenance — scheduled oil changes, belt tension checks, clearance verification, and bearing condition monitoring.

View our twin lobe blower product page for specifications. Contact us at +91 94033 02128 for sizing assistance and quotation.