Blowers

Ring Blower Manufacturers & Suppliers in Tamil Nadu

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

Overview

About this equipment

A ring blower, also called a side channel or regenerative blower, delivers clean, oil-free air at low pressure with almost no maintenance. It is compact, quiet and runs directly on its motor shaft, so there are no belts, gears or oil to look after. Sigma Process Controls supplies ring blowers for small STPs, aquaculture, packaging, drying and vacuum handling across Tamil Nadu.

[01] Blowers

How a ring blower works

An impeller with many small blades is mounted directly on the motor shaft and spins inside a ring-shaped channel. As it turns, air is flung outward by the blades and then drawn back in again, many times over, gaining pressure with each pass. This regenerative action builds pressure or vacuum smoothly, without pulsation and without any oil in the air path.

[02] Blowers

Key features

Maintenance-free

No belts, timing gears or oil. Only bearings and the inlet filter need attention.

Oil-free, pulsation-free air

Clean, smooth flow.

Compact and direct-driven

Small footprint, easy to mount.

Quiet running

Suitable for indoor use and occupied buildings.

Pressure or vacuum

Single- and two-stage models for higher duty.

[03] Blowers

Applications

Aeration for small STPs, package plants and septic tanks

Aquaculture and fish pond aeration

Vacuum lifting and hold-down in packaging, printing and CNC routers

Air knives and drying of bottles, cans and components

Dust collection and pneumatic conveying of light materials over short distances

Gas sampling and burner air

[04] Blowers

Ring blower or Roots blower?

If your tank is deep or your conveying line long, a Roots blower is usually the better choice. We’ll check your duty and advise.

	Ring blower	Roots blower
Pressure range	Low	Low to medium
Flow vs pressure	Flow falls as pressure rises	Flow stays nearly constant
Maintenance	Very low, no oil	Oil changes, belts, gears
Best for	Small plants, vacuum, drying, light duty	Large aeration, conveying, deep tanks

[05] Blowers

Industries that use ring blowers

Sewage Treatment Plants: small package STPs with shallow tanks

Foundry & Engineering: dust collection and light conveying

Food, Beverage & Dairy: bottle and can drying, air knives

Paper & Pulp: vacuum handling and hold-down

Packaging, printing and CNC

vacuum tables and pick-and-place

[06] Blowers

What we need to size your ring blower

Air flow (m³/hr) and whether it is pressure or vacuum duty

Required pressure or vacuum level (mbar)

Continuous or intermittent operation

Air temperature and any dust or moisture in the air stream

Power supply (single or three phase)

[07] Blowers

Installation and service

Ring blowers are simple to install: mount, connect the piping with a suitable filter and relief valve, and wire the motor. We advise on filters, silencers and relief valves to protect the blower, and support you with spares such as bearings and impellers and with troubleshooting if performance drops.

[08] Blowers

Why buy ring blowers from Sigma

Right technology first

we tell you if a Roots blower suits your duty better.

Correct accessories

filters, relief valves and silencers matched to the blower.

One supplier

ring blowers alongside pumps, Roots blowers and valves.

[09] Blowers

Ring blower suppliers across Tamil Nadu

We supply ring 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 ring blower?

Ring blowers are generally lower in cost than Roots blowers for small duties. Price depends on flow, pressure, stages and motor. Share your requirement for a quote.

Can a ring blower be used for STP aeration?

Yes, for small STPs with shallow tanks and low air demand. Larger or deeper plants need a Roots blower.

Does a ring blower need oil?

No. A ring blower has no oil in the air path or gearbox. Only the motor bearings need periodic attention.

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