Brackets and mounts
Marvel Air Flow MAF25C MR-624 — Smooth scroll shape-corrected direct drive GA
- Bounding box
- 1545.7 × 858.1 × 1321.0 mm
- Engine
- Precision B-rep
- Parameters
- 24
- Published
- November 5, 2026
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The prompt
Rework previous 30HP MAF25C MR-624 model to follow supplied GA shape. Replace polygonal crooked outer scroll with smooth cubic-spline scroll: horizontal outlet roof z1271 merging into round upper-right dome and semicircular lower belly; connected horizontal 375mm damper with 250x370 bore and 350x470 flange 14xØ14; Ø355 inlet ID Ø455 OD with 12xØ14 Ø410 PCD. Main base 690x850 six Ø14 holes. Direct-mount 30HP TEFC motor coaxial with wheel, no belts, split casing sheet stiffeners, inspection door, lifting lugs and drain. GA performance labels 7500CMH 500mmWC at 30C 2900rpm are not performance validated. More representative visual curvature and proportions than previous build.
Parameters
| Name | Value | Range |
|---|---|---|
| Base width in elevation | 690 mm | 680 – 730 |
| Base length inlet-to-motor | 850 mm | 820 – 900 |
| Base channel height | 100 mm | 95 – 120 |
| Base channel web/flange | 50 mm | 45 – 65 |
| Fan shaft X datum | 0 mm | -50 – 50 |
| Motor/impeller shaft elevation | 630 mm | 620 – 650 |
| Volute axial thickness (estimated) | 335 mm | 315 – 375 |
| Volute wall thickness (estimated) | 6 mm | 4 – 8 |
| Inlet flange clear bore | 355 mm | 345 – 365 |
| Inlet flange outside diameter | 455 mm | 450 – 465 |
| Inlet flange PCD | 410 mm | 400 – 420 |
| Connection bolt-hole diameter | 14 mm | 13 – 16 |
| Impeller diameter from GA model designation | 570 mm | 550 – 610 |
| CCW impeller blade count (estimated) | 10 | 8 – 12 |
| Outlet clear Y width | 250 mm | 240 – 270 |
| Outlet clear Z height | 370 mm | 350 – 390 |
| Outlet flange outer width | 350 mm | 340 – 370 |
| Outlet flange outer height | 470 mm | 450 – 490 |
| Top of horizontal outlet opening | 1271 mm | 1260 – 1285 |
| Outlet damper axial projection | 375 mm | 360 – 410 |
| 30 HP motor frame body OD (estimated) | 260 mm | 230 – 300 |
| 30 HP motor body length (estimated) | 315 mm | 290 – 360 |
| Direct drive motor front y datum | 95 mm | 65 – 125 |
| Motor mounting plate gauge | 12 mm | 10 – 16 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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