Masson Marine Equipment
MM W1950 NR
Masson Marine MM W1950 NR non-reversing reduction marine gearbox, 0.210 kW/rpm, max input 588 kW (789 hp), max 2,800 rpm, ratios 4.103–7.706, dry weight 720 kg.
Description
The MM W1950 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: 0.210 kW/rpm (0.282 hp/rpm) for ratios 4.103–5.727, decreasing to 0.157 kW/rpm (0.211 hp/rpm) at 7.706
- Maximum rated input: 588 kW (789 hp)
- Maximum speed: 2,800 rpm
- Ratios: 4.103, 4.481, 4.920, 5.727, 6.400, 7.222, 7.706
- Sample capacities (0.210 kW/rpm): 378 kW (507 hp) at 1,800 rpm, 441 kW (591 hp) at 2,100 rpm, 504 kW (676 hp) at 2,400 rpm
- Dry weight: 720 kg (1,593 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 |
|---|---|---|---|---|---|---|---|---|
| 1800 rpm | 2100 rpm | 2400 rpm | ||||||
| MM W1950 | 0,210 (0,282) | 588 (789) | 2800 | 4,103 | 378 (507) | 441 (591) | 504 (676) | 720 (1593) |
| 4,481 | ||||||||
| 4,920 | ||||||||
| 5,727 | ||||||||
| 0,193 (0,259) | 540 (725) | 6,400 | 347 (466) | 405 (544) | 463 (621) | |||
| 0,172 (0,231) | 482 (646) | 7,222 | 310 (415) | 361 (484) | 413 (554) | |||
| 0,157 (0,211) | 440 (590) | 7,706 | 283 (379) | 330 (442) | 377 (505) |
More from Masson Marine
- Masson Marine MM W2800Y Twin Input Single Output Gearbox
- Masson Marine MM W1950
- Masson Marine EM311
- Masson Marine EM540
- Masson Marine EM611
- Masson Marine Dual Speed Gearboxes (W3300 DS, W3450 DS, W5200 DS)
- Masson Marine E-Range Gearboxes for Synchronous Motors
- Masson Marine MM W3300 DS Dual-Speed Gearbox
- Masson Marine MM W3450 DS Dual-Speed Gearbox
- Masson Marine MM W5200 DS Dual-Speed Gearbox
- Masson Marine PTI Type 1
- Masson Marine PTI Type 1G
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