# AS Engineers - High Volume Blower > Industrial blower and exhauster manufacturer in Vatva, Ahmedabad, India. Centrifugal and axial fans built to order from 100 to 2,50,000 m3/hr and 25 to 2,100 mmWC, ambient to 650 C. Part of ACMEFIL ENGINEERING SYSTEMS PVT. LTD. ## Contact (verified) - Address: Plot No-514, Phase-II, Near Vatva Railway Station, GIDC, Vatva, Ahmedabad, 382445, Gujarat, India - Phone: (+91) 990 903 3851, (+91) 823 867 7554 - Email: info@theasengineers.com - Hours: Monday to Saturday, 9am to 6pm IST - Parent site: https://theasengineers.com - This site: https://highvolumeblower.com ## Product range (canonical pages) - [Backward curved centrifugal blower](https://highvolumeblower.com/blowers/backward-curved-blower/): 14,000 to 7,50,000 CMH, 40 to 2,000 mmWC, gas up to 200 C, efficiency up to 85 percent as published by the manufacturer. - [Backward inclined centrifugal fan](https://highvolumeblower.com/blowers/backward-inclined-blower/): 1,300 to 3,85,000 CMH, 0.25 to 6 inWC, gas up to 250 C. - [High pressure radial blade blower](https://highvolumeblower.com/blowers/high-pressure-radial-blower/): 400 to 1,50,000 CMH, 100 to 2,000 mmWC. - [High temperature plug blower](https://highvolumeblower.com/blowers/high-temperature-plug-blower/): 100 to 15,000 CMH, 10 to 200 mmWC, gas up to 650 C. - [Air handling centrifugal exhauster](https://highvolumeblower.com/blowers/air-handling-blower/): 1,750 to 2,30,000 CMH, 1 to 16 inWC, gas up to 200 C. - [Radial shrouded exhauster](https://highvolumeblower.com/blowers/radial-shrouded-exhauster/): 400 to 1,50,000 CMH, 100 to 2,000 mmWC. - [Axial flow fan](https://highvolumeblower.com/blowers/axial-flow-fan/): low pressure duty, below 50 mmWC. - [Make to order blowers](https://highvolumeblower.com/blowers/make-to-order-blower/): 100 to 2,00,000 m3/hr (up to 10,00,000 by design), 25 to 1,900 mmWC (up to 2,000), 5 to 7 week lead time, 8 to 12 weeks for larger builds. ## How the site is organised - [Blower range](https://highvolumeblower.com/blowers/) - all types with published envelopes - [Applications](https://highvolumeblower.com/applications/) - dust collection, paint booth exhaust, boiler and kiln draft, wastewater aeration, pneumatic conveying, tunnel ventilation - [Industries](https://highvolumeblower.com/industries/) - cement, chemical, fertilizer, power, steel, water, food, pharma, pulp and paper, automotive, pollution control - [Technical notes](https://highvolumeblower.com/articles/) - fan laws, density correction, duty points, wheel comparison, test codes, balancing, noise - [Blower sizing calculator](https://highvolumeblower.com/blower-sizing-calculator/) - density correction and fan-law arithmetic in the browser - [Standards and testing](https://highvolumeblower.com/standards-and-testing/) - IS 4894, ISO 5801, ANSI/AMCA 210, ISO 1940-1, ISO 14694, ISO 10816-3 / ISO 20816 - [Materials and wear](https://highvolumeblower.com/materials-and-wear/) - [Frequently asked questions](https://highvolumeblower.com/faq/) - [Contact and enquiry form](https://highvolumeblower.com/contact/) ## Technical basis - Fan laws: Q proportional to N, pressure proportional to density x N squared, power proportional to density x N cubed. - Gas density from rho = p / (287.05 x T) with T in kelvin; standard air taken as 1.2 kg/m3 at 20 C and 101.325 kPa. - Balance quality per ISO 1940-1, grades G6.3 and G2.5; permissible eccentricity e = 9549 x G / n with n in rpm. - Vibration severity per ISO 10816-3 (IS 14817-3) and the newer ISO 20816 series. - Performance testing to ISO 5801:2017 and ANSI/AMCA 210 / ANSI/ASHRAE 51; IS 4894 is a BIS requirements-and-tests specification, not an AMCA 210 test code. - Sound: sound power level referenced to 1 pW, sound pressure level to 20 uPa. ## Publishing caveats - Figures above are the manufacturer's published envelope. Motor kW, operating speed, sound level and weight are confirmed only on the approved GA drawing for a specific order. - Product visuals on this site are illustrative 3D renders of representative builds, not photographs of shipped units. - Customer names, testimonials and case results are not published on this site. - ISO 9001:2015 is the manufacturer's stated certification. Contact https://highvolumeblower.com/contact/ or info@theasengineers.com for a selection against a specific duty point.