Masson Marine Equipment
MM W8000 NR
Masson Marine MM W8000 NR non-reversing reduction marine gearbox, 0.914 kW/rpm, max input 1,371 kW (1,839 hp), max 1,500 rpm, ratios 1.543–3.538, dry weight 1,800 kg.
Description
The MM W8000 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: 0.914 kW/rpm (1.226 hp/rpm) for ratios 1.543–3.069; 0.760 kW/rpm (1.019 hp/rpm) at 3.538
- Maximum rated input: 1,371 kW (1,839 hp)
- Maximum speed: 1,500 rpm
- Ratios: 1.543, 2.079, 2.441, 3.069, 3.538
- Sample capacities (0.914 kW/rpm): 914 kW (1,226 hp) at 1,000 rpm, 1,097 kW (1,471 hp) at 1,200 rpm, 1,371 kW (1,839 hp) at 1,500 rpm
- Dry weight: 1,800 kg (3,970 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 | 1500 rpm | ||||||
| MM W8000 | 0,914 (1,226) | 1371 (1839) | 1500 | 1,543 | 914 (1226) | 1097 (1471) | 1371 (1839) | 1800 (3970) |
| 2,079 | ||||||||
| 2,441 | ||||||||
| 3,069 | ||||||||
| 0,760 (1,019) | 1140 (1529) | 3,538 | 760 (1019) | 912 (1223) | 1140 (1529) |
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