Nicotra Gebhardt RZR Alternative — LONGWELL RLM E series (airfoil)
Looking for an alternative to Nicotra Gebhardt RZR? LONGWELL's commercial centrifugal line mirrors the Nicotra naming 1:1 — RLM E series (airfoil) — with identical frame designation, dimensional interchangeability, belt-drive or factory EC-upgrade, AMCA-tested aerodynamics, at 40–55% lower landed cost and 15-day delivery vs 10–14 weeks ex-works Nicotra. This is the single highest-value naming-mirror battle in the commercial AHU segment.
RZR
RLM E series (airfoil)
Specification Comparison
| Specification | Nicotra Gebhardt RZR | LONGWELL RLM E series (airfoil) |
|---|---|---|
| Fan type | Backward airfoil double-inlet centrifugal | Backward airfoil double-inlet centrifugal |
| Impeller / frame | Ø355–1000 mm · airfoil | Ø355–1000 mm · airfoil Drop-in |
| Airflow range | 10,000–120,000 m³/h | 10,000–120,000 m³/h |
| Static pressure (max) | 1,400–3,000 Pa | 1,400–3,000 Pa |
| Power class | motor-selectable (IE3/IE4) | motor-selectable (IE3/IE4) |
| AMCA 210 static efficiency (peak) | 84% | 84% |
| Noise floor (Lw) | 85 dB(A) | 85 dB(A) |
| Voltage | 230 / 400 V · 380–480 V 3Φ | 230 / 400 V · 380–480 V 3Φ |
| Drive / motor | Belt-drive, IE3/IE4 motor (EC retrofit) | Belt-drive IE3/IE4 standard, factory EC option Match + EC option |
| Certifications | CE · UL · EAC · AMCA | CE · UL · cUL · TÜV · EAC · RoHS · REACH |
| Sample lead time | 4–10 weeks | 1–3 days |
| Series lead time (≤500 units) | 10–14 weeks | 15–30 days |
| Landed cost index (LONGWELL = 100) | 175–200 | 100 (baseline) |
Engineered match verified against Nicotra Gebhardt RZR 355 – RZR 1000 (airfoil double-inlet) in LONGWELL's cross-brand model library (record: NAMING_MIRROR — RLM E-355 → RZR 355). RLM E-355 → RZR 355; RLM E-560 → RZR 560; RLM E-800 → RZR 800; RLM E-1000 → RZR 1000 (up to 120,000 m³/h).
Why Engineers Switch from RZR to RLM E series (airfoil)
4–8× Faster Delivery
40–55% Lower Landed Cost
Belt or EC-Upgrade Path
Drop-In Compatibility Details
Frame & dimensional match
LONGWELL RLM E series (airfoil) carries the identical airfoil frame designation as Nicotra RZR — scroll dimensions, inlet cone, outlet flange, and shaft/bearing centres match 1:1, so it drops into the same AHU section, the same belt-guard, and the same pedestal without rework.
Drive & motor options
LONGWELL ships the RLM E series (airfoil) belt-driven with a selectable IE3 / IE4 motor to match the existing Nicotra RZR drive train, and offers a factory EC-upgrade variant (the -K suffix) that replaces the belt with a direct EC drive for variable-volume AHU and 25–40% fan energy savings.
Performance match
The aerodynamic curve of LONGWELL RLM E series (airfoil) tracks the Nicotra RZR within AMCA 210 test tolerance across the operating envelope (third-party tested). RLM E-355 → RZR 355; RLM E-560 → RZR 560; RLM E-800 → RZR 800; RLM E-1000 → RZR 1000 (up to 120,000 m³/h). Performance is matched at the published duty point, with LONGWELL's documented cross-brand library backing the selection.
Typical Applications
The LONGWELL RLM E series (airfoil) is widely deployed across very large industrial AHU, stadium HVAC and high-efficiency process air. Common application categories include:
- Stadium / large-venue HVAC
- Very large industrial AHU
- High-efficiency process air
RZR's airfoil blade is the top efficiency tier; LONGWELL RLM E mirrors the airfoil geometry from 355 to 1000 mm.
FAQ
Is LONGWELL RLM E series (airfoil) dimensionally interchangeable with Nicotra RZR?
Does LONGWELL offer an EC-upgrade for the RZR?
What's the 2026 lead-time and cost difference?
Why does LONGWELL use the same model naming as Nicotra?
Can I get the full Nicotra-to-LONGWELL commercial cross-reference?
Replace your RZR in 5 days
Send a quick request — model + quantity + delivery address. Sample unit ships in 1–3 days for field validation. Series production at 15-day lead time after PO.
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