Masson Marine Equipment
MM W7200 NR
Masson Marine MM W7200 NR non-reversing reduction marine gearbox, up to 1,727 kW (2,316 hp) input, max 1,850–2,100 rpm depending on rating, ratios 3.296–5.633, dry weight 2,000 kg.
Description
The MM W7200 NR is a non-reversing reduction marine gearbox from Masson Marine's W range, built for continuous duty in workboat and dredger applications.
Key features
- Reduction marine transmission with 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
- Suitable for twin installation with 100% rated power ahead and astern
- Robust design with easy onboard maintenance; fully works-tested and simple to install
- Design, manufacture and quality control to ISO standards
Technical data
- Rating: 0.869 kW/rpm (1.165 hp/rpm) for ratios 3.296–3.780, decreasing to 0.654 kW/rpm (0.877 hp/rpm) at 5.633
- Maximum rated input: 1,607 kW (2,155 hp) at 1,850 rpm; 1,653 kW at 1,950 rpm; 1,727 kW (2,316 hp) at 2,000 rpm; 1,703 kW at 2,100 rpm
- Ratios: 3.296, 3.780, 3.949, 4.127, 4.313, 4.506, 4.926, 5.282, 5.633
- Sample capacities (0.869 kW/rpm): 1,042 kW (1,398 hp) at 1,200 rpm, 1,390 kW (1,864 hp) at 1,600 rpm, 1,564 kW (2,097 hp) at 1,800 rpm
- Dry weight: 2,000 kg (4,410 lb)
Standard equipment
- Oil cooler with fittings and flexible hoses
- Integrated brackets
- Free standing
- Lube oil pump
Options
- Engine-matched torsional coupling
- Propeller shaft flange and coupling bolt set
- Classification by all major classification societies on request
- 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 |
|---|---|---|---|---|---|---|---|---|
| 1200 rpm | 1600 rpm | 1800 rpm | ||||||
| MM W7200 | 0,869 (1,165) | 1607 (2155) | 1850 | 3,296 | 1042 (1398) | 1390 (1864) | 1564 (2097) | 2000 (4410) |
| 3,780 | ||||||||
| 0,848 (1,137) | 1653 (2217) | 1950 | 3,949 | 1017 (1364) | 1356 (1819) | 1526 (2046) | ||
| 0,864 (1,158) | 1727 (2316) | 2000 | 4,127 | 1036 (1390) | 1382 (1853) | 1554 (2084) | ||
| 0,811 (1,088) | 1703 (2284) | 2100 | 4,313 | 973 (1305) | 1298 (1740) | 1460 (1958) | ||
| 0,785 (1,052) | 1648 (2210) | 4,506 | 942 (1263) | 1256 (1684) | 1413 (1894) | |||
| 0,735 (0,986) | 1544 (2071) | 4,926 | 882 (1183) | 1176 (1578) | 1323 (1775) | |||
| 0,700 (0,938) | 1469 (1970) | 5,282 | 839 (1126) | 1119 (1501) | 1259 (1689) | |||
| 0,654 (0,877) | 1374 (1843) | 5,633 | 785 (1053) | 1047 (1404) | 1178 (1579) |
More from Masson Marine
- Masson Marine MM W2800Y Twin Input Single Output Gearbox
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- Masson Marine EM311
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