Blowers

Twin Lobe Blower Manufacturers & Suppliers in Tamil Nadu

Twin Lobe Blowers for industries across Tamil Nadu. Sizing, supply, installation & AMC support from Sigma Process Controls. Call +91 94870 69937.

Overview

About this equipment

The twin lobe blower is the most widely used Roots blower in India. It is simple, rugged and economical, and it is the standard choice for STP aeration, ETP equalisation and pneumatic conveying. Sigma Process Controls supplies twin lobe blowers sized to your air flow and pressure, complete with motor and accessories, and supports them with installation guidance, spares and AMC across Tamil Nadu.

[01] Blowers

How a twin lobe blower works

Two figure-eight shaped rotors turn in opposite directions, kept in sync by timing gears. Each turn traps a pocket of air at the inlet and pushes it to the discharge. The rotors never touch each other or the casing, so the blower runs without oil in the air path and delivers clean, oil-free air at a near-constant volume.

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Key features

Proven design

Decades of use in aeration and conveying across Indian industry.

Oil-free, constant-volume air

Steady flow even when diffuser or line pressure rises.

Economical

Lower purchase cost than tri lobe for the same capacity.

Easy maintenance

Standard spares and simple overhaul.

Pressure or vacuum

One machine type for both duties.

Full package

Motor, base frame, drive, inlet filter, silencers, safety valve, NRV and gauge.

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Applications

STP and ETP aeration with fine- or coarse-bubble diffusers

Equalisation tank mixing in textile, tannery and food ETPs

Sand filter backwash air scour

Pneumatic conveying of fly ash, cement, sand and grain

Aquaculture and fish pond aeration

Vacuum duty for packaging and process lines

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Twin lobe vs tri lobe

Twin lobe blowers cost less and are easier to maintain. Tri lobe blowers produce less pulsation and noise. For most industrial STPs and ETPs, a twin lobe blower with a good silencer is the economical choice. For apartments, hospitals and hotels, a tri lobe blower or an acoustic hood may be worth the extra cost.

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What we need to quote

Air flow (m³/hr) or your plant capacity and load

Discharge pressure or tank depth

Running hours per day and duty / standby requirement

Power supply and site noise limits

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Industries that use twin lobe blowers

Sewage Treatment Plants: the most common STP aeration blower

Water & Wastewater Treatment: ETP aeration and filter backwash

Textile Dyeing, ETP & ZLD: equalisation and biological aeration

Tannery CETPs: strong-effluent aeration

Foundry & Engineering: pneumatic sand conveying

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Installation, service and AMC

Correct installation adds years to a twin lobe blower. We guide foundation, alignment, belt tension and piping, and commission the blower with a trial run. After that, our AMC covers oil changes, filter cleaning, belt and bearing checks, and genuine spares such as lobes, timing gears and seals.

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Maintenance tips for longer life

Check the oil level weekly and change oil at the recommended running hours.

Clean or replace the inlet filter regularly; a choked filter overheats the blower.

Keep belt tension correct and replace belts as a set.

Watch discharge pressure; a rising reading often means choked diffusers.

Listen for new noises; early bearing or gear wear is cheaper to fix.

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Twin lobe blower suppliers across Tamil Nadu

We supply twin lobe blowers in Coimbatore, Chennai, Tiruppur, Erode, Hosur, Salem, Madurai and Trichy.

FAQs

Frequently asked questions

Still have a question?

Talk to our team about your application.

What is the price of a twin lobe blower?

It depends on capacity, pressure, motor, drive type and accessories. Send your air flow and pressure for an exact quotation.

How long does a twin lobe blower last?

With correct sizing, clean inlet filters, the right oil and regular servicing, a twin lobe blower gives many years of service. An AMC helps protect that life.

Why is my twin lobe blower noisy?

Likely causes are worn bearings or timing gears, loose belts, pressure above rating, or a damaged silencer. Our troubleshooting team can find the cause.

Can one twin lobe blower serve both equalisation and aeration tanks?

It can, with proper valving, but separate or duty-standby blowers give better control. We’ll recommend the right layout for your plant.

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