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See every LONGWELL model whose P-Q curve covers it — margins, noise and power included. No login.

Library: Ø20–2,038 mm, single units up to about 79,000 m³/h — larger duties go straight to an engineer. Prefer to talk it through? Send your specs to an engineer Browse all AC Cross Flow Fans models with curves on the Fan Selector →

Buying from LONGWELL

  • Brand owner since 1990
  • Yuyao, Ningbo
  • 12-month standard warranty, extendable to 18–24 months by project agreement
  • Reply within 1 business day

Certificates you can check

Product certificates cover only the models listed on each document — ask which ones apply to your model. ISO certificates cover management systems, not products. Declaration of Conformity for your model and destination on request.

All document scans and what each covers

Test & release at LONGWELL

Specified and drawn by LONGWELL, built to our drawings by qualified partner factories, inspected and released to LONGWELL standards.

  • Wind tunnel · AMCA 210 method
  • Semi-anechoic room · sound power testing
  • Outgoing sampling to AQL 2.5
  • Test records retained for 5 years

How ordering works

  1. Spec check duty point & drawings
  2. Samples 1–3 days (stock models), fee credited to first order
  3. Validation on your bench
  4. Order T/T 30/70 (first order)
  5. Production & release 15–30 days, partner factory
  6. Shipping & after-sales FOB · CIF · DDP
Full terms, QC and FAQ
Current book for AC Cross Flow Fans

AC Cross Flow Fans

AC cross flow fans for OEM equipment

AC cross flow fans, also called tangential blowers, provide airflow along the length of the wheel. For an air curtain, heater, trench-heating unit or appliance, select the fan around the equipment’s airflow path, available space and electrical supply. Wheel diameter alone does not define the overall assembly or its installed performance.

Confirm the wheel, motor and mounting

  • Dimensions: wheel diameter and length, overall assembly envelope, mounting points, motor position, and inlet and outlet arrangement. Send a drawing when replacing an existing assembly.
  • Electrical supply: AC voltage and frequency, motor arrangement and any required speed control. Use the selected model’s wiring information; do not assume that every version has the same connections.
  • Operating conditions: required airflow and pressure, air temperature, installation environment, duty cycle and acoustic limits within the equipment.
  • Supply requirements: sample quantity, production forecast, destination and requested cables, connectors or labeling.

Compare the catalogue and exact model

The AC cross flow fan catalogue provides the model information needed to compare assemblies. Review the relevant dimension drawing, performance curve and electrical data together. You can also browse AC cross flow models on the Fan Selector. Validate airflow, sound and temperature in the actual enclosure before approving production.

Request a matched supply proposal

Send your dimensions and operating requirements for selection and a private quotation. Price, MOQ, sample arrangements and delivery are confirmed against the selected configuration and order plan. Discuss non-standard interfaces through the OEM engineering review.

2026 catalogue example: LWCA-60120SN-06

The AC60 catalogue lists this single cross-flow model at 230 V, 50 Hz, 15 W and 1,700 rpm, with maximum/free-air airflow of 113 m³/h. Its drawing identifies dimensions A/B/C as 194/123/120 mm. Check the dimension labels and fan curve against your outlet and mounting space; maximum airflow is not an airflow-at-maximum-pressure rating. Open the model table, curve and drawing (PDF, page 1).