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ebm-papst K3G900 Alternative — LONGWELL LWBE3G630

Looking for an alternative for ebm-papst K3G900-AY16-K1? The LONGWELL LWBE3G630 is the nearest listed size (Ø630 mm); a Ø900 mm drop-in is not in the current catalogue — same control protocol, performance characterized using AMCA 210/211 test methods (test report on request) — at 40–55% lower landed cost with 15–30 day delivery vs 16–22 weeks ex-works ebm-papst. Widely deployed across Large mining ventilation, very large industrial AHU, process exhaust.

Replaces: ebm-papst K3G900-AY16-K1 Diameter: Ø900 mm Family: RadiCal / K3G-series → LONGWELL LWBE3G / LWAE3G / LWHV / LWFC Sample: 1–3 days
Replacing
ebm-papst
K3G900
RadiCal / K3G-series · EC backward-curved centrifugal plug fan · Ø900 mm
→
With
LONGWELL
LWBE3G630
Nearest listed size (not a drop-in) · Same control · 15–30 day delivery

Specification Comparison

Specification ebm-papst K3G900 LONGWELL LWBE3G630
Fan type EC backward-curved centrifugal plug fan EC backward-curved centrifugal plug fan
Impeller diameter Ø900 mm No listed Ø900 mm model — nearest listed size Ø630 mm (LWBE3G630, 7 models)
Airflow range 3,500–26,000 m³/h up to 21,742 m³/h per Ø630 unit — larger duties as FanGrid arrays
Static pressure (max) 1600 Pa up to 1,677 Pa (Ø630 unit)
Motor power (max) 14,000 W up to 5,600 W per unit
Noise floor (Lw) 47 dB(A) from 66 dB(A) (nameplate, per model)
Voltage 380–480 V 3Φ 380–400 V 3Φ
Control input 0–10 V / PWM / Modbus / EC-Control 0–10 V / PWM / Modbus RTU (RS485)
IP rating IP54 / IP55 IP54 std · IP55 / IP67 option
Certifications CE · UL · VDE · EAC CE · RoHS · REACH · ETL on request
Sample lead time 4–10 weeks 1–3 days
Series lead time (≤500 units) 16–22 weeks 15–30 days
Landed cost index (LONGWELL = 100) 175–200 100 (baseline)
Verify it on the LONGWELL selector: all 7 LWBE3G630 models — data, measured curves, drawings · LWBE3G630-188NT-09 (largest airflow in the series) · check your own duty point · samples, MOQ and lead time

Why Engineers Switch from K3G900 to LWBE3G630

4–8× Faster Delivery

15–30 days
vs 16–22 weeks ex-works for ebm-papst in 2026. Sample units 1–3 days from stock vs 4–10 weeks.

40–55% Lower Landed Cost

−€600 to −€2,400
per unit at equivalent spec, depending on size and quantity. On a 50-unit FanGrid retrofit, typical CapEx delta is €30k–€120k.

Nearest size + FanGrid option

Ø630 mm
nearest listed size with the same 0–10 V / PWM / Modbus RTU control; mounting per the LONGWELL drawing (not a drop-in for Ø900 mm).

Drop-in compatibility: what matches and what to confirm

Mechanical match

LONGWELL does not currently list a Ø900 mm unit in this family. The nearest listed size is Ø630 mm (LWBE3G630); for the airflow of a single Ø900 mm fan, engineering proposes 2–4 smaller EC units in a FanGrid array or a custom development — mounting is not a drop-in.

Electrical & control match

The LWBE3G630 accepts the same 0–10 V analog speed reference, PWM (1 kHz), and Modbus RTU (RS485) control signals as ebm-papst K3G900. LONGWELL provides the Modbus register map and a cross-reference to the ebm-papst map for BMS integration.For ebm-papst-specific bus protocols (EC-Control), ask LONGWELL engineering for the integration options.

Performance match

The measured P-Q curve of every LONGWELL model is on its model page; we check your duty point against it before quoting.

Typical Applications

The LWBE3G630 is widely deployed across Large mining ventilation, very large industrial AHU, process exhaust. Common application categories include:

  • Mining ventilation
  • Very large industrial
  • Process AHU

Particularly suited for mining ventilation and very large industrial process exhaust.

FAQ

Is LONGWELL LWBE3G630 a true drop-in replacement for ebm-papst K3G900?
Not as a drop-in: LONGWELL does not list a Ø900 mm model in this family. The nearest listed size is Ø630 mm (LWBE3G630); for equal airflow we propose a FanGrid array of smaller EC units or a custom development. Ask engineering with your duty point.
How does LWBE3G630 compare on efficiency to K3G900?
LONGWELL does not publish a single peak-efficiency figure for the LWBE3G630. The model page on the selection site gives airflow, static pressure and input power along the curve (measured where marked, nameplate-estimated otherwise), so the efficiency at your duty point follows directly; a test report for a specific model is available from engineering on request.
What's the 2026 lead time difference?
As of May 2026: ebm-papst K3G900 requires 16–22 weeks ex-works due to ongoing allocation. LONGWELL LWBE3G630 ships in 15–30 days for orders up to 500 units and 6–10 weeks for 1,000+ unit OEM programs. Sample units ship in 1–3 days from stocked Ø900 mm inventory.
What's the cost delta?
At equivalent specification (same Ø, same airflow/Pa, same IP, same control), LONGWELL LWBE3G630 typically lands at 40–55% below ebm-papst K3G900 ex-works pricing. Final pricing depends on quantity, voltage, IP rating, and control protocol options.
What applications is LWBE3G630 typically used for?
LWBE3G630 is widely deployed across Large mining ventilation, very large industrial AHU, process exhaust. Particularly suited for mining ventilation and very large industrial process exhaust.

Replace your K3G900 — samples in 1–3 days

Send a quick request — model + quantity + delivery address. Sample unit ships in 1–3 days for field validation. Series production at 15–30 day lead time after PO.

Request Sample View Full Cross-Reference Table
Official Product Page
Browse the full Backward-Curved Centrifugal EC Fans range on longwellfans.com — request a quote on LWBE3G630 directly.
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ebm-papst® is a registered trademark of ebm-papst Group. LONGWELL is an independent manufacturer and is not affiliated with, endorsed by, or sponsored by ebm-papst. Any references to third-party trademarks are used solely for identification and comparison purposes. All performance figures reflect specific test conditions; final selection should be confirmed by duty point, voltage/control, mounting and project validation.