When the gas is dirty, abrasive or sticky and the static is high, the efficient backward fans simply erode. The Radial trades efficiency for ruggedness: heavy, widely-spaced straight blades that pass grit and build-up without clogging, hardface and re-line in place, and — wear-plated — take the heaviest dust loads in our range. It develops the highest pressure in our range and runs the highest-duty ID, gas-recirculation and material-laden conveying service across cement, iron & steel, power, foundry and pollution-control plants.
The Radial wheel carries heavy, widely-spaced blades pointing straight out from the hub — the simplest, strongest blade form there is. The wide gaps let dirty, abrasive and sticky material pass straight through; the flat blades are easy to hardface and re-line; and the high tip speed (Class 5 build) makes the highest pressure in the range. The price is efficiency — the lowest peak static efficiency of any family we build — and that trade is the whole point.
Wide-spaced straight blades are self-cleaning — grit, fly ash and sticky material pass without clogging — to the heaviest dust loading in our range when wear-plated.
The highest tip speed in the range (175 m/s Class 5) develops static up to 2,000 mmWC — for high-draft ID, gas recirculation and HP-blower duty.
Heavy plate, hardfaced leading edges and bolt-in replaceable liners (steel, ceramic or basalt) — built to be re-lined in place, not scrapped when it wears.
You do not buy a Radial for running cost. You buy it when dust, abrasion or high static would destroy a more efficient wheel. Pick it for the right reason and it runs the dirtiest gas for years on a serviceable wear menu; pick it for clean air and you simply pay for power you did not need to spend.
Beyond the moderate-dust ceiling of a radial-tip wheel, fly ash, mineral grit and sticky material clog and erode a curved blade in months.
How we engineer it outWide-spaced straight paddle blades that are self-cleaning, plus hardfacing and bolt-in replaceable liners — wear-plated for the heaviest dust loads, the highest tolerance in the range.
High-draft ID, gas recirculation and pressure-blower duty need static a backward wheel cannot reach on a wheel that also survives the dust.
How we engineer it outClass 5 build at a 175 m/s tip — per-model static to the canon ceiling of 2,000 mmWC — with FEA and NDT on the high-stress wheel.
Straight radial blades are aerodynamically blunt — the peak static efficiency is the lowest of any family we build.
How we engineer it outDeliberate, not a defect: we size the wheel near its own best-efficiency region and reserve the Radial for dirty/high-pressure duty — for clean air we put you on a backward family instead.
This is not a catalogue box. The wheel form, the dust-protection package and the construction suffix are engineered to your gas, dust load, temperature and operating point.
No catalogue point forced onto your spec. Your duty is engineered onto the best-efficiency region of the selected radial wheel — accepting the family's deliberate efficiency character — then verified on the 200 HP VFD test rig to the AMCA 210 / ISO 5801 method before dispatch.
| Parameter | Standard | On application |
|---|---|---|
| Volume flow | up to 2,00,000 CMH | higher on enquiry (engineered-to-order) |
| Static pressure | up to 2,000 mmWC | highest-pressure family in the range |
| Inlet dust loading | heaviest dust class we build, wear-plated (WP) | loading limits shared with your enquiry |
| Peak static efficiency | lowest in the range — a deliberate trade | ruggedness over running cost |
| Continuous gas temperature | up to 600 °C with HT construction | higher with refractory lining + special metallurgy |
| Drive power | up to 400 HP | higher with custom motor sourcing |
| Blade tip speed (build class) | 175 m/s Class 5 (open-paddle special 125 m/s) | FEA + NDT on the high-stress wheel |
| Balance quality | ISO 21940 G2.5 at the Class 5 tip | G6.3 general / G1.0 on application |
The envelope above is our published ceiling; the Radial reaches the top of our static and dust range and the bottom of our efficiency range — that is its engineering character, not a compromise. Bearing life is a L10h ≥ 40,000 h continuous design target. Dust tolerance is duty-dependent: the heaviest-dust rating applies to the wear-plated (WP) package; clean-side radial duty needs no wear plating. High-flow and heavy-dust duty above the published envelope is engineered-to-order on enquiry.
The same engineering language carries from your enquiry to the GA drawing to the nameplate — expressed in the standard AMCA conventions, with the Radial's wear and high-temp scope called out explicitly.
| Specification field | Options |
|---|---|
| Arrangement (AMCA 99) | Arr. 1 (overhung, fan bearings) / Arr. 8 (overhung on common base) / Arr. 9 (overhung, motor side) / Arr. 10 (overhung, motor inside base) — selected by drive, access and temperature; overhung is the usual radial-ID configuration. |
| Width / inlet | SWSI (single width, single inlet) standard for the Radial — single-inlet suits the high-static, dust-laden duty; DWDI considered only where flow demands it at moderate pressure. |
| Wheel type | Radial blade / paddle default; radial-paddle and open-paddle specials for the dirtiest, stickiest material-transport duty; choose by dust character, pressure and flow. |
| Class (by pressure / tip speed) | Class 5 heavy build at the 175 m/s tip for high pressure — heavier plate, FEA and NDT mandatory; lower class only where the duty point allows a lower tip speed. |
| Materials of construction | MS (standard) / wear-resistant plate + hardfaced (chrome-carbide WPS) blades with bolt-in replaceable liners / ceramic or basalt liners (severe abrasion) / 304L, 316L, Corten or duplex for corrosive and below-dew-point flue gas. |
| Construction suffix | WP wear-plated (heavy-dust package) / HT high-temp (heat shield + shaft cooling disc) / SR spark-resistant (AMCA 99 Type A/B/C, self-declared ATEX Cat 3) / F FRP-or-SS airstream — combined as the gas requires (e.g. WP+HT for hot abrasive kiln gas). |
| Drive | Direct-coupled / V-belt / VFD. Drive up to 400 HP across the envelope; G2.5 balance with FEA + NDT at the Class 5 tip; split SNL bearings; shaft cooling disc above ~150 °C. |
| Discharge & rotation (AMCA orientation) | Rotation CW or CCW (viewed from drive side) with discharge angle per AMCA — TH/BH/UB/DB — set to match your duct take-off and installed footprint; isolation / tandem dampers for gas-tight ID. |
Every job's performance is verified at our works on the 200 HP VFD test rig, to the AMCA 210 / ISO 5801 method, before dispatch.
Kiln / preheater ID, raw & cement mill, clinker-cooler and mill-vent fans.
Sinter-plant ID, EAF fume extraction (spark-resistant), material-laden draught.
Boiler ID on the dirty side, gas recirculation (GRF) on alloy-radial construction.
Cupola / furnace fume, sand-handling dust, abrasive material extraction.
Ore-dust collection, material handling, abrasive mineral conveying.
ESP / baghouse main fans, dust-extraction and conveying for APC packagers.
Dust collection (dirty-side), grinding / welding dust, dilute & dense conveying.
8 radial wheels engineered to dust, pressure and wear. Tell us yours.
What our marks mean, in the words that survive an audit.
Tested to the AMCA 210 / ISO 5801 method, in-house on our 200 HP VFD rig. Tested-to-method — not AMCA-certified.
ISO 9001:2015 — third-party certified. Our only third-party certification.
Self-declared per 2006/42/EC + 2014/35/EU (Module A). A self-declaration, not a notified-body certificate.
Self-declared, Zone 2/22, Category 3, per 2014/34/EU, where the area classification calls for it.
Designed and built to API 673 as project-specific scope.
ASME Sec IX qualified welders + WPS for every joint.
ISO 21940 — G6.3 minimum, G2.5 / G1.0 on application.
ISO 20816 evaluation; ISO 14694 for fan-specific limits.
| Stage | Standard duty | API-673 / engineered |
|---|---|---|
| Offer / quotation | 3 working days — always | 7–10 working days |
| GA drawing for approval | 2–3 weeks from PO | 3–4 weeks from PO |
| Manufacture + balance + paint | 6–10 weeks | 10–14 weeks |
| Performance test + witnessed FAT | ~1 week | 1–2 weeks |
| Order-to-dispatch (total) | 9–14 weeks | 14–20 weeks |
Shutdown-driven replacements: we have shipped fans within 6 weeks of a clean PO. Tell us your shutdown window and we commit to a dated plan.
The same engineering, viewed three ways — by fan family, by duty, and by industry. Follow the cross-references.
No model numbers needed. Give us the operating conditions — flow, static, gas temperature, composition, particulate, and any tender standard — and our application engineers size the fan and quote it. Attach a spec or GA if you have one.
+91 90110 09155 · mihir.jitamitra@gmail.com