Engineering Reference Case Profile · Consumer Cooling ODM
Consumer Air Coolers, Tower Fans and Handheld Fans · ODM Programmes for European Retail
Compiled from LONGWELL’s real correspondence with European household-appliance brands and retail groups. This segment buys finished machines, not fans — and it is decided by things that never appear on a fan datasheet: tooling lead time, instruction-manual wording, GS and CE approval, battery declarations, carton cube per container, and document sets that satisfy three different parties on one shipment.
About this case profile: This profile is compiled from real LONGWELL project correspondence in this segment. Customer names, commercial terms and pricing are withheld; company names and branding have been removed from the photographs. Model numbers, electrical ratings and dimensions are quoted from LONGWELL controlled datasheets, product nameplates and customer-approved drawings. Where a figure is a typical range rather than a measured project result it is labelled as such. Named references are available under NDA on project qualification (sales@longwellfans.com).
1 · Challenge
- The manual is a gating item. On a desktop cooler programme, sign-off depended on the instruction manual correctly describing five speed steps, tank capacity and the RGB button-cycle logic — not on airflow.
- Tooling sets the calendar. A dedicated mould runs about 45 days; the whole programme schedules backwards from that, through 3D-printed prototypes and performance evaluation.
- Carton cube is a commercial parameter. At 800 pcs per container and 68 CBM, the ratio of air path to packed volume decides sea-freight cost per unit as much as the bill of materials does.
- Battery status must be declared before booking. Products with cells need transport classification and MSDS/SDS; products without need a written no-battery declaration.
- One shipment, three parties. Brand owner, importer and retail chain each need their own consignee, notify party and Form A on the documents, with order and item numbers cross-referenced.
- Approval is to appliance standards, not fan standards — GS, CE, RoHS, and for motors EN 60335-1 and EN 62233.
2 · Solution architecture
This segment is served as a full ODM programme: tooling and prototype, motor and impeller matching for noise, appliance-standard approval, manual and packaging artwork review, and a document set built to the retail chain’s own guide. LONGWELL builds the motor in-house, so noise and speed-step behaviour are tuned at the drive rather than compensated in the housing.
Programme types delivered in this segment
| Programme | Specification | Compliance / commercial | Outcome |
|---|---|---|---|
| Desktop portable air cooler (LW170 class) | 175×165×166 mm, 750 ml tank, 5 speed steps, USB supply with adapter, RGBW side lighting with multi-function button | CE / RoHS; dedicated tooling ≈45 days; manual must state speed steps, tank capacity and RGB cycle logic | Tooling developed, series production delivered |
| Evaporative floor cooler | 60 W, 3 speed steps, base Ø34 cm, fan Ø17.5 cm, height 114 cm, 60° oscillation, 15 h timer, 5 L tank, remote and touch display | CE / GS | Delivered as a complete machine (internal model LWTF-030B) |
| Tower fan, retail volume | HS 8414593000; 800 pcs per container, 4,600 kg gross, 68 CBM | 4×40 HQ + 1×20 GP; separate B/L consignee, notify party and Form A per retail channel | Shipped complete across multiple channels |
| Air cooler + tower fan mixed order | 288 cartons air cooler + 400 cartons tower fan | No-battery declaration; sea waybill (telex release); EU ENS pre-declaration timing | Delivered on schedule to an EU port |
| Handheld rechargeable fan | Custom housing colours (black / white) | Battery transport classification where cells are fitted | Colour samples approved, series supplied |
| Shaded-pole motors (LWSPM6135-01 / 6140-01) | AC 100–240 V; 90 W in / 22.5 W out and 106 W in / 26.5 W out | CE-LVD to EN 60335-1 and EN 62233; rotation, shaft form and bearing type defined | Samples delivered for higher-speed replacement |
3 · Verified figures
Fan performance figures are quoted from LONGWELL controlled datasheets and product nameplates 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, ambient temperature, certification scope) of your machine.
Tooling lead time
≈45 days
Dedicated mould for a desktop cooler housing; the whole schedule is built backwards from it
Container loading
800 pcs · 68 CBM
Tower fan programme, 4,600 kg gross — 4×40 HQ plus 1×20 GP
Mixed order shipped
288 + 400 cartons
Air coolers and tower fans in one despatch with no-battery declaration
Desktop cooler
750 ml · 5 speeds
USB supply, RGBW side lighting with multi-function button control
Floor cooler
5 L · 60 W · 60°
3 speed steps, 15 h timer, remote control and touch display, 114 cm tall
Motor approval scope
EN 60335-1 · EN 62233
CE-LVD for shaded-pole motors supplied into laboratory and appliance equipment
Motor output pair
22.5 W / 26.5 W
LWSPM6135-01 (90 W in) and LWSPM6140-01 (106 W in), AC 100–240 V
4 · How these programmes run
Concept and specificationDimensions, tank capacity, speed steps, control logic and lighting behaviour are fixed. In this segment the user interface is specified as tightly as the airflow.
Prototype3D-printed prototypes are built and evaluated before any steel is cut, together with filter and accessory selection.
ToolingA dedicated mould takes roughly 45 days. Every other milestone is scheduled around it.
Approval and documentationGS, CE and RoHS, and for motors EN 60335-1 / EN 62233. The instruction manual is reviewed line by line against the actual control behaviour.
Booking preparationBattery status is declared, carton cube and container plan are calculated, and the document set is built to the retail chain’s guide — consignee, notify party, Form A and order/item numbers per channel.
DespatchPeak-season bookings are made with a contingency for rolled containers; sea waybill or telex release is arranged so the goods are not held at the destination port.
5 · Engineering lessons carried forward
- In consumer programmes the instruction manual and the control logic are gating items, not paperwork. Establish a standard manual review step early — speed steps, tank capacity and button behaviour have to match the product exactly before mass production is approved.
- Schedule backwards from tooling. A dedicated mould is roughly 45 days; committing to a retail on-shelf date without that in the plan is how these programmes slip.
- Design for carton cube. On a finished machine the air path and packed volume decide sea-freight cost per unit; evaluating CBM at the design stage is worth as much as trimming the bill of materials.
- Declare battery status before booking, every time. Products with cells need transport classification and MSDS/SDS; products without need a written declaration. Discovering this at the terminal costs the sailing.
- Align consignee, notify party and Form A before despatch when a brand owner, importer and retail chain are all on one shipment. Document mismatch is the most common cause of a hold on this route.
- Reserve contingency in peak season. Rolled containers, demurrage and telex-release changes have to be answered within hours or destination-port charges escalate.
6 · Project evidence
Every item below is a real project thread from LONGWELL’s own correspondence. Each carries an anonymised case reference, the counterparty described by industry and buying role only, an evidence grade, the actual dates from first contact to close, the length of the email thread and, where an invoice is on file, the order value band. Customer names, domains, brand artwork, prices and commercial terms are withheld — including from the photographs. Evidence grade A means controlled documents or test reports are on file for that thread; grade B means a structured enquiry and specification are on file. Order value bands are read from the proforma or commercial invoice held on file for that thread and are rounded to a band; the invoice currency is shown as invoiced. A band is only given where the invoice currency is unambiguous — 20 of the threads on these pages carry one. Unit prices are never published.
Desktop portable air cooler — tooling, prototype and manual sign-off
- Product: 175×165×166 mm, 750 ml tank, 5 adjustable speeds, USB supply with adapter, RGBW side lighting with multi-function button (RGB cycle and single-colour selection).
- Dedicated tooling developed (≈45 days), with 3D-printed prototypes, performance evaluation and filter/adapter selection ahead of it. Built to CE and RoHS.
- Approval to produce hinged on the instruction manual accurately reflecting the five speed steps, tank capacity and RGB cycle logic — several review rounds were needed before sign-off.
Tower fans at retail volume — multi-channel documents on one shipment
- Tower fans under HS 8414593000: 800 pcs per container, 4,600 kg gross, 4,430 kg net, 68 CBM, shipped as 4×40 HQ plus 1×20 GP.
- Two retail receiving entities required separate bills of lading and packing lists with their own consignee, notify party and Form A headings, including a to-order blank-endorsed B/L, with order and item numbers fully cross-referenced.
- Loading was planned with the forwarder in multiple batches to match factory output against a pre-holiday sailing window with a real risk of rolled containers.
Air coolers and tower fans in one despatch — battery declaration and EU pre-declaration
- 288 cartons of air coolers and 400 cartons of tower fans produced and loaded on one order.
- A written no-battery confirmation was issued (products containing cells would have required transport classification and MSDS/SDS), and a sea waybill / telex release indemnity was prepared so the goods were released without delay.
- Booking was matched to the customs manifest rules and the EU ENS pre-declaration window for the destination port, with container and product descriptions checked to prevent a wrong-model despatch.
Evaporative floor cooler — complete machine to CE/GS
- 60 W, 3 speed steps, base Ø34 cm, fan Ø17.5 cm, 114 cm tall, 60° oscillation, 15 hour timer, 5 L evaporative tank, remote control with batteries and touch display.
- Supplied as a complete machine to CE/GS (internal model LWTF-030B) with an in-house low-noise drive motor and matched impeller, from component integration through machine testing to sea despatch.
Shaded-pole motors for laboratory equipment — higher speed, CE-LVD
- LWSPM6135-01 (max input 90 W, max output 22.5 W) and LWSPM6140-01 (max input 106 W, max output 26.5 W), AC 100–240 V, plus small axial fan samples for a higher-speed replacement trial.
- Rotation reference (viewed from the shaft end versus the end cap), shaft form (threaded versus stepped flat) and bearing type (sleeve versus ball, for life and noise) were all pinned down before sampling.
- Compliance documented to CE-LVD, EN 60335-1:2012+A11+A13+A1+A14+A2 and EN 62233:2008+AC:2008.
Fan performance figures are quoted from LONGWELL controlled datasheets and product nameplates 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, ambient temperature, certification scope) of your machine.
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