Masson Marine Equipment
MM W12000 C
Coaxial version of the Masson Marine W12000 reverse reduction gearbox for workboats and dredgers; ratios 2.096–6.499, max rated input up to 1713 kW (2298 hp), dry weight 2530 kg.
Description
The MM W12000 C is the coaxial version of the Masson Marine W12000 reverse reduction marine gearbox, with input and output shafts on the same axis. It is designed for continuous duty in workboat and dredger applications.
Technical data
- Ratios: 2.096, 2.503, 2.982, 3.428, 3.944, 4.390, 4.885, 5.476, 5.916, 6.499
- Power rating: 1.806 kW/rpm (2.422 hp/rpm) at 2.096 down to 0.702 kW/rpm (0.941 hp/rpm) at 5.916
- Maximum rated input: up to 1713 kW (2298 hp)
- Maximum input speed: 860 rpm (2.096), 1030 rpm (2.503), 1230 rpm (2.982), 1400 rpm (3.428), 1625 rpm (3.944), 1800 rpm (4.390)
- Sample capacity (ratio 2.096): 1355 kW (1816 hp) at 750 rpm
- Dry weight: 2530 kg (5580 lb)
Key features
- Coaxial input and output shafts
- Robust design with easy onboard maintenance
- Hydraulically actuated multi-disc clutches
- Case-hardened, precision-ground gear teeth for long life and smooth running
- Robust cast iron casing for direct or remote mounting
- Emergency "get home" capability
- Fully works tested; design, manufacture and quality control to ISO standards
- Suitable for twin installation with 100% rated power ahead and astern
Standard equipment
- Oil cooler with fittings and flexible hoses
- Integrated brackets
- Free-standing design
- Lube oil pump
Options
- Engine-matched torsional coupling
- Propeller shaft flange and coupling bolt set
- Classification by all major classification societies
- PTO (live or clutchable)
- Electric trolling valve for slow-speed drive
- Shaft brake
- Electric clutch control
Specifications
| Model | kW/RPM (hp/RPM) | Maximum Rated Input kW (hp) | Maximum RPM | Ratio | Sample Ratio Capacities kW (hp) | Dry Weight kg (lb) | col8 | col9 |
|---|---|---|---|---|---|---|---|---|
| 750 rpm | 1000 rpm | 1200 rpm | ||||||
| MM W12000C | 1,806 (2,422) | 1553 (2083) | 860 | 2,096 | 1355 (1816) | (-) | (-) | 2530 (5580) |
| 1,633 (2,190) | 1682 (2256) | 1030 | 2,503 | 1225 (1642) | 1633 (2190) | |||
| 1,393 (1,868) | 1713 (2298) | 1230 | 2,982 | 1045 (1401) | 1393 (1868) | 1672 (2242) | ||
| 1,212 (1,625) | 1697 (2275) | 1400 | 3,428 | 909 (1219) | 1212 (1625) | 1454 (1950) | ||
| 1,053 (1,412) | 1711 (2295) | 1625 | 3,944 | 790 (1059) | 1053 (1412) | 1264 (1695) | ||
| 0,946 (1,269) | 1703 (2283) | 1800 | 4,390 | 710 (951) | 946 (1269) | 1135 (1522) | ||
| 0,848 (1,137) | 1526 (2047) | 4,885 | 636 (853) | 848 (1137) | 1018 (1365) | |||
| 0,758 (1,016) | 1364 (1830) | 5,476 | 569 (762) | 758 (1016) | 910 (1220) | |||
| 0,702 (0,941) | 1264 (1695) | 5,916 | 527 (706) | 702 (941) | 842 (1130) | |||
| 6,499 |
More from Masson Marine
- Masson Marine MM W2800Y Twin Input Single Output Gearbox
- Masson Marine MM W1950
- Masson Marine EM311
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- Masson Marine Dual Speed Gearboxes (W3300 DS, W3450 DS, W5200 DS)
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- Masson Marine MM W5200 DS Dual-Speed Gearbox
- Masson Marine PTI Type 1
- Masson Marine PTI Type 1G
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