Masson Marine Equipment
MM W5700 NR
Masson Marine MM W5700 NR non-reversing reduction marine gearbox, 0.764 kW/rpm, max input 1,430 kW (1,918 hp), max 1,872–2,400 rpm depending on ratio, ratios 1.976–6.170, dry weight 1,500 kg.
Description
The MM W5700 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: 0.764 kW/rpm (1.025 hp/rpm) for ratios 1.976–2.712, decreasing to 0.361 kW/rpm (0.484 hp/rpm) at 6.170
- Maximum rated input / speed: 1,430 kW (1,918 hp) at 1,872 rpm; 1,326 kW at 2,130 rpm; 1,308 kW at 2,400 rpm
- Ratios: 1.976, 2.369, 2.712, 3.132, 3.574, 4.082, 4.668, 5.354, 6.170
- Sample capacities (0.764 kW/rpm): 917 kW (1,230 hp) at 1,200 rpm, 1,223 kW (1,639 hp) at 1,600 rpm, 1,375 kW (1,844 hp) at 1,800 rpm
- Dry weight: 1,500 kg (3,310 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 W5700 | 0,764 (1,025) | 1430 (1918) | 1872 | 1,976 | 917 (1230) | 1223 (1639) | 1375 (1844) | 1500 (3310) |
| 2,369 | ||||||||
| 2,712 | ||||||||
| 0,710 (0,953) | 1330 (1784) | 3,132 | 853 (1143) | 1137 (1524) | 1279 (1715) | |||
| 0,623 (0,835) | 1326 (1779) | 2130 | 3,574 | 747 (1002) | 996 (1336) | 1121 (1503) | ||
| 0,545 (0,731) | 1308 (1754) | 2400 | 4,082 | 654 (877) | 872 (1170) | 981 (1316) | ||
| 0,477 (0,639) | 1144 (1534) | 4,668 | 572 (767) | 763 (1023) | 858 (1151) | |||
| 0,416 (0,557) | 998 (1338) | 5,354 | 499 (669) | 665 (892) | 748 (1003) | |||
| 0,361 (0,484) | 866 (1161) | 6,170 | 433 (580) | 577 (774) | 649 (871) |
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