Masson Marine Equipment
MM W20200 NR
Masson Marine MM W20200 NR non-reversing marine gearbox, up to 2.124 kW/rpm and 3,005 kW (4,030 hp) input, ratios 2.288–9.825, dry weight 5,700 kg.
Description
The MM W20200 NR is a marine reduction gearbox from Masson Marine's W range, built for continuous duty in workboat and dredger applications.
Key features
- Reverse 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
- Non-reversing version
- Rating: 2.124 kW/rpm (2.848 hp/rpm) for ratios 2.288–3.512, decreasing to 1.301 kW/rpm (1.745 hp/rpm) at the highest ratios
- Maximum rated input: 2,722 kW (3,650 hp) at 1,281 rpm; up to 3,005 kW (4,030 hp) at 1,504 rpm (ratio 4.124)
- Ratios: 2.288 to 9.825
- Sample capacity (2.124 kW/rpm): 2,124 kW (2,848 hp) at 1,000 rpm, 2,549 kW (3,418 hp) at 1,200 rpm
- Dry weight: 5,700 kg (12,570 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 |
|---|---|---|---|---|---|---|---|---|
| 1000 rpm | 1200 rpm | 1600 rpm | ||||||
| MM W20200 NR | 2,124 (2,848) | 2722 (3650) | 1281 | 2,288 | 2124 (2848) | 2549 (3418) | (-) | 5700 (12570) |
| 2,604 | ||||||||
| 3,107 | ||||||||
| 3,512 | ||||||||
| 1,997 (2,678) | 3005 (4030) | 1504 | 4,124 | 1997 (2678) | 2396 (3214) | |||
| 1,803 (2,418) | 2885 (3869) | 1600 | 5,032 | 1803 (2418) | 2164 (2901) | 2885 (3869) | ||
| 1,626 (2,181) | 2602 (3489) | 5,900 | 1626 (2181) | 1951 (2617) | 2602 (3489) | |||
| 1,390 (1,864) | 2224 (2982) | 7,217 | 1390 (1864) | 1668 (2237) | 2224 (2982) | |||
| 1,301 (1,745) | 2082 (2791) | 7,843 | 1301 (1745) | 1561 (2094) | 2082 (2791) | |||
| 1,486 (1,993) | 2378 (3188) | 8,335 | 1486 (1993) | 1783 (2391) | 2378 (3188) | |||
| 1,390 (1,864) | 2224 (2982) | 9,040 | 1390 (1864) | 1668 (2237) | 2224 (2982) | |||
| 1,301 (1,745) | 2082 (2791) | 9,825 | 1301 (1745) | 1561 (2094) | 2082 (2791) |
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 EM611
- Masson Marine Dual Speed Gearboxes (W3300 DS, W3450 DS, W5200 DS)
- Masson Marine E-Range Gearboxes for Synchronous Motors
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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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