Engineering Reference Case Profile · GMP Grade A/B mRNA Manufacturing

800 FFU mRNA Fill-Finish Cleanroom Build · EU GMP Annex 1

A composite reference case based on representative mRNA pharma fill-finish facility builds — supplying EN 60601-1-2 medical-EMC EC plug fans for ISO Class 5 / EU GMP Grade A/B cleanroom with N+1 redundancy and 8-week PO-to-install delivery hitting commissioning critical path.

Project size: 800 FFU at EU GMP Grade A/B · mRNA fill-finish facility Reference period: Composite reference · 2024–2025 build pattern Geography: EU + Asia-Pacific pharma cleanroom segment

About this case profile: This is an anonymized composite reference case based on representative LONGWELL platform deployments in the Pharma Cleanroom · mRNA Fill-Finish segment. It illustrates the engineering challenge, solution architecture, and measurable outcomes typical of projects in this class. Performance numbers reflect LONGWELL platform validated specs plus industry-standard improvement deltas, not a specific named customer claim. Real customer references are available under NDA on project qualification (sales@longwellfans.com).

1 · Challenge

EU GMP Annex 1 (revised 2023, full enforcement 2025) Grade A/B requirements with tightened contamination control strategy (CCS) and N+1 redundancy.
EN 60601-1-2 medical EMC required for adjacent medical-device equipment (filling line + visual inspection systems).
ISO 14644 Class 5 face-velocity uniformity + ULPA U15 filter at 0.45 m/s ±18%.
8-week commissioning window (compressed pharma capex schedule for mRNA build-out).
Patient-safety acoustic: <38 dB(A) Lp at filling-line operator position.
N+1 redundancy per JCI requirement (single-fan failure must not interrupt aseptic processing).

2 · Solution Architecture

800 LWBE3G-Medical FFU on 600×600 mm ceiling grid across Grade A fill-finish suite + Grade B background. N+1 master/slave parallel control (single-fan failure auto-redistributes load). 60 LWAE3G-Medical for negative-pressure isolation room exhaust (Grade C/D). EN 60601-1-2 medical-EMC tested per shipment with TÜV report. EU GMP Annex 1 dossier covering material data sheet, particle generation, sterilizability (autoclave + VHP H2O2), drainable / cleanable housing.

Bill of materials

LONGWELL SKU	Type	Qty	Key spec
LWBE3G-Medical	EC plug fan medical-EMC	800 FFU	Ø250–Ø355 mm, EN 60601-1-2 medical EMC, 0.45 m/s ±18% face velocity, ULPA U15/U16, EU GMP Annex 1 Grade A/B documentation per shipment
LWAE3G-Medical	Medical-EMC axial fan	60 units	Negative-pressure isolation ducting (Grade C/D isolation areas)

3 · Modelled Outcomes — Typical Range

How to read these figures: the values below are modelled for this composite scenario — LONGWELL platform specifications combined with industry-standard deltas for cleanroom and pharma projects. They are a planning range, not measured results from one named project. Verified data from real deployments is in Section 6.

GMP Annex 1 Grade A integrity hold time

38 minutes

target 30 min · validated

First-pass GMP qualification

Yes

no re-spec required

EN 60601-1-2 EMC verified per shipment

100%

via TÜV reports

Lead time PO → install

8 weeks

vs 16–22 wk ebm-papst Medical

N+1 redundancy event response

<10 seconds

auto load redistribution

Acoustic at operator position

36 dB(A)

well under 38 limit

4 · Implementation Timeline

Week 0Master PO for 800 FFU + 60 axial

Week 1–4Tooling lock + first 200-FFU qualification batch

Week 5Qualification batch acceptance + EMC verification

Week 6–7Remaining 600 FFU production

Week 8Final delivery + Grade A integrity test pass

Week 10Commissioning hand-over

5 · Engineering Lessons

EU GMP Annex 1 dossier per shipment (not one-time type test) is mandatory for pharma cleanroom commissioning. Documentation includes material data sheet, particle generation per ISO 14644-3, sterilizability with autoclave + VHP H2O2, drainable + cleanable housing.
N+1 redundancy via parallel Modbus master/slave with auto load redistribution on fault eliminated the need for separate standby FFU bank — simpler architecture, same JCI compliance.
Grade A integrity hold time of 38 minutes (vs 30 minute target) provided 27% safety margin for unplanned interventions during aseptic processing.
EN 60601-1-2 medical-EMC verification per shipment avoided interference with adjacent filling-line vision inspection systems + automated visual inspection (AVI) cameras.
8-week PO-to-install (vs 16-22 weeks ebm-papst Medical) preserved the mRNA build's 6-month commissioning critical path — competitor alternative would have missed FDA inspection window.

6 · Verified Project Evidence

Everything below is drawn from actual project correspondence. Model numbers, duty points, applicable standards and audit outcomes are stated as they occurred. Customer names are withheld; no pricing is published.

Netherlands — patient temperature-management system, forward-curved blower

Medical device component · ISO 13485 · delivered

Supplied, dual voltage from one design: LWFA2E120-092SS-07 — 230 V, 50 Hz, 71 W, 2,200 rpm, 0.33 A, 325 Pa, 277 m³/h, 2 µF; and LWFA2E120-092SU-08 — 115 V, 60 Hz, 71 W, 2,200 rpm, 0.77 A, 8 µF for North America.
What a medical OEM actually audits: a signed Quality Agreement under ISO 13485, an on-site audit by the customer’s own QA representative, and controlled change management with production traceability. The fan spec was the easy part.
Test and build standards applied: GB 12350, JB/T 10563, EN 60335-1, ISO 5801:1997, GB/T 2888. Protection IP44, insulation Class F (155 °C), operating range −30 to +60 °C.
Every batch shipped with a document pack: dimensional and cosmetic inspection of each unit, test report, measurement video, as-built photographs, and a formal Certificate of Conformity.
Logistics detail that mattered: the customer’s contract manufacturer ships by air. Repacking to a single 92 × 92 × 223 cm pallet cut the freight cost materially without changing the product.

Singapore — medical laboratory equipment, shaded-pole motors and compact axial fans

Sampling to qualification · delivered

Supplied for evaluation: LWSPM6135-01 — AC 100–240 V, max input 90 W / max output 22.5 W; and LWSPM6140-01 — max input 106 W / max output 26.5 W, both wide-voltage.
Certification basis: CE-LVD to EN 60335-1:2012+A11+A13+A1+A14+A2 and EN 62233:2008+AC:2008.
The specification detail that is easy to get wrong: direction of rotation has to be stated from a defined end — shaft end or endcap end. “Clockwise” on its own is ambiguous and will produce a motor that runs the wrong way in the instrument.

Russia — cleanroom FFU and equipment builders, inlet-ring compatibility

EC backward-curved · repeat order

Model in question: LWBE3G280-102NS-004 — 230 V, 4.3 A, 690 W, 3,000 rpm, 3,050 m³/h, 600 Pa.
The blocking question was not performance, it was the inlet ring. The customer needed to know whether the fan ships with an inlet cone and whether its geometry and key dimensions interchange with the European unit already designed into their equipment.
Full structural drawings of both fan and inlet ring were issued with a dimension-by-dimension comparison against the incumbent, including where the two differ. That cleared the installation risk and the customer placed a repeat order for 240 units.
A separate cleanroom FFU programme took the same platform with an RS485 centralised control box.

Serbia — medical device contract manufacturing, factory audit

Forward-curved blower · delivered

The end application is a medical device, so the customer audited the quality system rather than the product — both remotely and on site, including staffing and shift structure.
Outgoing release required 100% dimensional and cosmetic inspection with a Certificate of Conformity per batch, plus as-built photographs before shipment.
Samples were shipped in a reinforced wooden crate specifically to survive long-haul air freight intact for the qualification build.

LONGWELL technical drawing sheet showing three backward-curved EC fan frame sizes with dimensions, one circled in red by the customer — The selection package as it is actually used: a LONGWELL GA drawing sheet covering three frame sizes with mounting-hole patterns, lead lengths and earth-point positions. The red mark is the customer’s own — the size they chose after checking it against their cabinet.

Backward-curved EC impeller measured with a dial caliper, nameplate reading LWBE3G190-072NS-13 — Dimensional verification on a delivered fan: LWBE3G190-072NS-13, 230 V 50/60 Hz, 0.65 A, 87 W, 3,300 rpm, Class B, IP55, with CE, EAC and UL marks on the hub label. Where a customer disputes a dimension, this is how it is settled — measured on the actual part, not on a drawing.

Fan performance figures are quoted from LONGWELL controlled datasheets and are tested per AMCA 210/211 methods; third-party reports available on request. EC versus AC energy saving is approximately 30%, higher under strongly varying load — confirm against your own load profile. Final selection must be confirmed against the actual duty point (airflow / static pressure / voltage / control method) and project validation.

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