Air Curtain Blower (High-Performance Tangential Fan Assembly) | Chronovex
₹1,170.00 ₹1,699.00
Air Curtain Blower / Tangential Fan Assembly — High-Performance Spare for 3 ft / 4 ft / 6 ft units.
- 180 W variable · 230 V single-phase · 50 Hz
- ~2800 RPM · galvanised steel housing · copper-winding motor
- Compatible with Chronovex 3-6 ft units · OEM-grade replacement
- HSN 8414 90 12 (parts) · GST 18%
↓ SEE FULL SPECS, FAQ, BULK PRICING & FITMENT GUIDE BELOW
❓ Frequently Asked Questions
SKU:air-curtain-blower
Categories:All Products, Blower
💰 Pricing Tiers & Models
Tangential Blower (3 ft)
Compatible: 3 ft AC units
Power: ~120 W · RPM: ~2800
Length: ~750 mm
Tangential Blower (4 ft)
Compatible: 4 ft AC units
Power: ~180 W · RPM: ~2800
Length: ~1000 mm
Tangential Blower (6 ft)
Compatible: 6 ft AC units
Power: ~240 W · RPM: ~2800
Length: ~1600 mm
🔍 At-a-Glance
The Chronovex Tangential Blower Assembly is the OEM-grade replacement fan unit used inside our 3 ft / 4 ft / 6 ft air curtain models. Each blower ships factory-balanced, with a copper-winding motor, sealed bearings and a galvanised-steel housing engineered for continuous 8-12 hour daily duty in Indian B2B environments. Ideal for service technicians, AC OEMs and large facility teams maintaining a fleet of door-mounted air curtains.
📋 Full Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Tangential Fan Assembly (Blower Spare) |
| Available Lengths | 750 mm / 1000 mm / 1220 mm / 1600 mm / 1830 mm |
| Motor Power | 120-360 W (model dependent) |
| Voltage | 230 V ± 10% single-phase, 50 Hz |
| Rotation Speed | ~2800 RPM (factory-balanced) |
| Housing Material | Galvanised steel + ABS end caps |
| Bearings | Double-sealed ball bearings, lifetime-lubricated |
| Insulation Class | Class B (130 °C) |
| Protection | IP20 (housing-protected when fitted inside AC) |
| HSN Code | 8414 90 12 (parts of fans) |
| GST | 18% |
| Warranty | 12 months on motor against manufacturing defect |
✨ Key Features
- OEM-grade balance: Each rotor is factory-balanced to <0.5 mm/s vibration so installed AC stays silent (≤65 dB at 3 m).
- Copper-winding motor: Pure copper windings deliver stable torque, lower running temperature and longer life than aluminium-wound equivalents.
- Sealed double bearings: Lifetime-lubricated bearings handle 24x7 duty in dusty Indian godowns and food-processing plants without re-greasing.
- Drop-in fitment: Same mounting pitch and shaft dimensions as Chronovex Standard, Premium and Advanced air curtain series — swap in <30 minutes.
- Galvanised housing: Resists rust in humid coastal warehouses (Chennai, Vizag, Kochi) and chemical-fume areas.
- Variable-RPM ready: Works seamlessly with 2-speed and variable-speed AC controllers — no controller change needed.
📦 What's in the Box
- 1 × Tangential blower assembly (motor + impeller + housing pre-assembled)
- 2 × Mounting screws (M5 × 16 mm zinc-plated)
- 1 × 4-pin connector wiring harness (~250 mm) with crimp terminals
- 1 × Test certificate (factory balance + insulation resistance)
- 1 × GST-compliant invoice with HSN 8414 90 12
- 1 × Fitment guide (single A4 illustrated sheet)
🏭 Where This Blower Spare Is Used
- Service technicians servicing AC fleets across malls, hotels, hospitals, food factories.
- AC manufacturers / OEMs sourcing white-label blower assemblies for their own branded units.
- Facility maintenance teams stocking critical spares for 24x7 cold-chain warehouses.
- QSR & supermarket chains with 50+ AC installs needing one consolidated spare-parts vendor.
- Industrial canteen kitchens where original blowers fail early due to oily fume exposure.
🔧 Install / Swap Procedure
- Power off & isolate the AC at the wall MCB. Wait 2 minutes for residual rotation to stop.
- Open service panel — remove 4-6 screws on the underside grille.
- Disconnect 4-pin motor harness from the control PCB (clip release).
- Unscrew 2 blower-mount screws at each end bracket. Slide assembly out.
- Slide new blower in, align shaft with end-cap bushes, tighten screws (do not over-torque).
- Reconnect harness, refit grille, restore power and run 5-minute test cycle.
Typical swap time: 25-35 minutes per unit by trained technician.
❓ Top Questions
Will this blower fit any brand of air curtain?
It is engineered as a drop-in for Chronovex 3-6 ft units. Fitment on other brands depends on mounting pitch and shaft dimensions — send us the existing blower dimensions and we'll confirm in 24 hours.
How do I know if my blower needs replacement?
Signs: AC much noisier than normal, vibration on the housing, intermittent stop-start, burning smell from motor, or visible bearing-grease leakage. Replace blower before motor fully seizes to avoid PCB damage.
What is the bulk pricing for OEM orders?
Slabs at 25, 50, 100 and 250+ pieces with progressive discount. White-label / private-branding available from 100 pieces. Request a quote.
Is the HSN code 8414 90 12 or 8414 59 10?
This spare blower assembly is classified HSN 8414 90 12 (parts of fans) at 18% GST. Complete air curtain units are HSN 8414 59 10.
⚖️ Tangential vs Centrifugal Blower
| Aspect | Tangential (this spare) | Centrifugal |
|---|---|---|
| Airflow shape | Wide flat curtain (ideal for doors) | Narrow focused jet |
| Noise | ≤65 dB — quiet | 70-75 dB |
| Best for | Retail, hotels, hospitals, offices | Cold-storage, heavy industrial |
| Power draw | 120-360 W | 400-1500 W |
🔗 Related Products
- 6 ft Metal Body Standard Air Curtain (complete unit)
- 4 ft Aluminium Premium Air Curtain
- Browse all air curtain spares & accessories
📦 Bulk & OEM Pricing
Volume slabs at 25 / 50 / 100 / 250+ pieces with progressive discount. White-label branding available from 100 pieces with 4-week lead time. Pan-India dispatch from Noida warehouse via Delhivery, Safexpress and VRL.
🏆 Why Chronovex Spares
- ISO 9001:2015 certified manufacturer — every blower factory-tested for balance and insulation
- 12-month motor warranty against manufacturing defect
- GST-compliant invoicing with correct HSN 8414 90 12
- Pan-India delivery in 2-7 days; same-day dispatch from Noida for stock items
- Direct technical support from the engineering team (not a call center)
🚚 Delivery & Coverage
Standard B2B dispatch across Delhi NCR, Mumbai, Pune, Bengaluru, Chennai, Hyderabad, Kolkata, Ahmedabad, Surat, Coimbatore, Ludhiana, Jaipur and 200+ tier-2 cities via our partner network.
📖 Glossary
- Tangential fan: A cross-flow fan that produces a wide, flat sheet of airflow ideal for door-curtain applications.
- RPM: Revolutions per minute — rotation speed of the impeller.
- Class B insulation: Motor winding insulation rated for 130 °C continuous operation.
- HSN 8414 90 12: Indian tariff classification for fan parts (18% GST).
📚 Detailed FAQs
Can I install this blower without an electrician?
For your safety we recommend a qualified electrician or AC service technician. The wiring involves a 4-pin harness and 230 V mains; incorrect polarity or loose terminals can damage the motor or trip MCBs.
Does the blower come pre-balanced?
Yes — every assembly is dynamically balanced on a Schenck balancing rig at the factory and shipped with a test certificate showing the residual vibration value.
What if my AC controller is older / different brand?
The motor is 230 V single-phase — it works with any 2-speed or variable controller delivering proper voltage. Send us your controller make/model and we'll confirm compatibility in 24 hours.
📖 Related Buyer Guides
📖 Product Overview & Buyer Guide
Everything an Indian B2B buyer needs to know about the Chronovex Tangential Blower spare — in one place.
Air Curtain Blower (High-Performance Tangential Fan Assembly) by Chronovex Industries is the OEM-grade replacement fan unit used inside our 3 ft / 4 ft / 6 ft door-mounted air curtain models. Each blower ships factory-balanced with a copper-winding motor, sealed bearings and a galvanised-steel housing engineered for 8-12 hour daily duty in Indian B2B environments. Manufactured in Noida and shipped pan-India with GST-compliant invoicing (HSN 8414 90 12).
🤔 Why a dedicated blower spare instead of a full AC?
In most Indian B2B air curtain failures the housing, side-plates, control PCB and grille are still perfectly fine — it is the blower assembly (motor + impeller + bearings) that wears out after 18-30 months of continuous duty. Replacing only the blower saves 55-70% versus buying a full new unit, eliminates re-mounting labour, and your facility is back in service in under an hour. Chronovex blowers are sold as a single drop-in cartridge: motor, impeller and housing arrive pre-assembled and pre-balanced — a service technician just unscrews two brackets and plugs in one 4-pin harness. This makes them the standard spare carried by AMC vendors servicing hotel chains, hospitals, malls, QSR groups and cold-chain warehouses.
📋 Quick Specs at a Glance
| Type: Tangential fan assembly | Lengths: 750 / 1000 / 1220 / 1600 / 1830 mm |
| Motor power: 120-360 W | Voltage: 230 V ± 10%, 50 Hz |
| RPM: ~2800 (factory-balanced) | Housing: Galvanised steel + ABS caps |
| Bearings: Sealed, lifetime-lubricated | Insulation: Class B (130 °C) |
| HSN: 8414 90 12 (parts of fans) | GST: 18% |
| Swap time: 25-35 minutes | Warranty: 12 months on motor |
📍 Where blower spares are bought most
Demand for tangential blower spares is concentrated in India’s spare-parts and HVAC service hubs. Service vendors, AC OEMs and facility teams typically stock 5-25 blowers at a time across these cities:
• Delhi NCR / Faridabad• Mumbai / Pune• Ludhiana• Ahmedabad / Rajkot• Coimbatore• Bengaluru• Hyderabad
✨ What you get with every Chronovex blower
| ✓ Factory-balanced rotor & test certificate | ✓ Pure copper-winding motor |
| ✓ Sealed lifetime-lubricated bearings | ✓ Drop-in fitment kit (screws + harness) |
| ✓ GST invoice with HSN 8414 90 12 | ✓ 12-month motor warranty |
| ✓ Same-day dispatch from Noida (stock) | ✓ Direct engineer support, not a call-centre |
❓ Frequently Asked Questions
🔧How long does a blower swap take?
A trained AC service technician needs 25-35 minutes per unit: power-off & isolate, open service grille, disconnect 4-pin harness, unscrew two end-bracket screws, slide old blower out, slide new blower in, reconnect, refit grille, restore power and run a 5-minute test. No specialised tools required.
💰How much does this save vs buying a new AC?
Replacing only the blower saves 55-70% versus a full unit, plus you avoid uninstall/reinstall labour and downtime. For facilities running 10+ air curtains a stocked blower spare typically pays back the first time it is used.
⚖️Tangential vs centrifugal — which do I need?
For door-mounted air curtains in retail, hotels, hospitals and offices, tangential blowers (this spare) give a wide flat curtain at ≤65 dB. Centrifugal blowers are louder (70-75 dB) and used for heavy-industrial cold-storage or chemical plants. Match the new blower to the original type — do not swap technology mid-life.
⏱️How do I know my blower needs replacement?
Telltale signs: noise level jumps above 65 dB, visible housing vibration, intermittent stop-start, burning smell from the motor, or visible bearing-grease leakage. Replace the blower before the motor fully seizes — a seized motor can damage the AC’s control PCB which is a more expensive repair.
📜HSN code, GST and OEM invoicing?
This spare ships under HSN 8414 90 12 (parts of fans) at 18% GST. Complete air curtain units are HSN 8414 59 10 — keep the spare under the parts HSN on your invoice to match B2B procurement and ITC claims.
🛠️Warranty and after-sales support?
12-month motor warranty against manufacturing defect. We dispatch replacements direct from Noida and provide engineer-level WhatsApp / phone support for fitment queries within working hours — you talk to the team that built the blower, not an outsourced call-centre.
Frequently Asked Questions
Find answers to common questions about this product
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