May 13, 2026 / By Super Admin / in Air Curtain
Quick answer: A defensible air curtain tender specification for Indian PSU, government, or institutional procurement must lock in five things: certification (ISO 9001:2015 minimum, BIS compliance where applicable), technical performance (air velocity at door plane, motor rating, noise level), warranty terms (12-month standard, AMC-extensible), HSN and GST line items (8414 59 10 at 18% GST), and after-sales SLA coverage across the relevant city tiers. Below is a tested template structure that you can adapt for your tender document.
This page is written for PSU procurement officers, government tender desks, hospital / educational institution buyers, and large-format retail / industrial clients who run formal multi-bidder procurement processes. We have packaged air curtains into PSU tenders across India and the structure below reflects what survives technical-evaluation scrutiny.
Spell out qualifying criteria at the start so unqualified bidders self-eliminate. Standard PSU pattern:
This is the core paragraph that goes into the technical bid section. Adjust dimensions, velocity, and noise targets to your application.
| Parameter | Specification | Tolerance |
|---|---|---|
| Door width coverage | 900 / 1200 / 1500 / 1800 mm (as per BoQ) | +0 / −5 mm |
| Air velocity at door plane (1 m from outlet) | Minimum 8 m/s for commercial; 12 m/s for industrial | ±10% |
| Air discharge angle | Adjustable 0–20° toward unconditioned side | — |
| Motor type | Capacitor-start single-phase (≤1500 mm) / three-phase induction (≥1800 mm) | — |
| Power supply | 230V ±10%, 50 Hz, single-phase OR 415V ±10%, 50 Hz, three-phase | — |
| Insulation class | Class B minimum (Class F preferred) | — |
| Noise level at 1 m distance | ≤70 dB(A) at high speed | +3 dB |
| Housing material | Powder-coated CRCA steel, minimum 1.0 mm gauge | — |
| Mounting | Horizontal lintel-mount with adjustable brackets | — |
| Control | Wired switch (3-speed) OR IR remote with door-interlock option | — |
| Ingress protection | IP20 (indoor); IP54 (covered outdoor) | — |
| HSN code on invoice | 8414 59 10 | — |
| GST rate | 18% (9% CGST + 9% SGST / 18% IGST as applicable) | — |
Standard 4-column BoQ format that survives any government audit:
| Item | Description (with make / model) | Quantity / unit | HSN / SAC |
|---|---|---|---|
| 1 | Commercial air curtain, 1200 mm, 8 m/s minimum, 230V single-phase, with IR remote | 10 nos | 8414 59 10 |
| 2 | Industrial air curtain, 1800 mm, 12 m/s minimum, 415V three-phase | 4 nos | 8414 59 10 |
| 3 | Installation, commissioning & testing at site | 14 nos | 998719 |
| 4 | Comprehensive AMC, 24 months from commissioning | 1 lot | 998719 |
| 5 | Mandatory spares kit (capacitor, contactor, remote) | 1 lot | 8414 90 90 |
Quote prices excluding GST in the BoQ; GST is added as a separate line in the financial bid summary. This avoids ambiguity during L1 evaluation.
For tenders using QCBS (Quality and Cost-Based Selection) or LCS (Least Cost Selection), standard weightings:
8414 59 10. This is the tariff item for fans — other (covering air curtains, air screens, and directional blower units). The GST rate is 18%. Vendors invoicing under 8479 or 8415 are misclassifying. See our air curtain HSN and GST guide for the full breakdown.
The air curtain assembly itself is not currently under the BIS mandatory certification (Compulsory Registration Scheme) scope. However, several component-level standards apply: IS 302 / IS 374 for electrical safety of motor, IS 1885 for terminology of electrical machinery. PSU tenders routinely demand compliance with these component-level IS standards.
Per PPP-MII Order 2017 (and subsequent revisions), Class-I local supplier (50%+ local content) gets purchase preference. Class-II (20–49%) gets next preference. Importers / pure traders get lowest preference. Most central government and PSU tenders now incorporate this. Bidders self-declare their local-content percentage in the technical bid; verification audit follows for L1 confirmation.
Typically 2–3% of estimated tender value or a fixed amount (₹10,000–50,000 for small lots, ₹1–5 lakh for large). EMD is refunded to unsuccessful bidders within 30 days of award; for the L1 bidder, it converts toward Performance Bank Guarantee.
Yes. We are ISO 9001:2015 certified, registered with multiple state DGS&D / GeM IDs, manufacture in Noida under Make-in-India with Class-I local content. We have supplied air curtains to PSU, hospital, and institutional buyers across India. Contact us with your tender reference and we will respond with technical compliance + financial bid within standard tender timelines.
Bidder certificates (ISO 9001, GSTIN, PAN, MSME if applicable), past PO copies + completion certificates, manufacturer's authorisation letter if bidder is distributor, test certificates from NABL lab for air-velocity claim, OEM datasheets, list of similar supplies, financial statements for 3 years, blacklisting affidavit, and EMD instrument.
If you are scoping an air curtain tender and need a technical-spec sounding board before publishing, our engineering team will review your draft RfP at no cost and flag specifications that are over- or under-shot for your application. Email contact@chronovex.in with your tender draft and target evaluation date.
For active tender responses, we submit technical + financial bids on GeM, CPP Portal, e-procurement portals (Maharashtra, Karnataka, Tamil Nadu, UP, etc.), and via direct PSU submission. Our standard technical bid pack includes all certifications, test reports, datasheets, and past supply orders. View our air curtain range or request a tender response.
Tender specification language above reflects standard CVC / GFR / Make-in-India procurement practice. Adapt to your specific tender authority's template and consult your contracts cell for institution-specific clause language.
May 13, 2026 by Super Admin
May 13, 2026 by Super Admin
