Masson Marine Equipment
MM W3850 NR
Masson Marine MM W3850 NR non-reversing reduction marine gearbox, 0.348 kW/rpm, max input 731 kW (980 hp), max 2,100 rpm, ratio 6.955, dry weight 1,270 kg.
Description
The MM W3850 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: 0.348 kW/rpm (0.467 hp/rpm)
- Maximum rated input: 731 kW (980 hp)
- Maximum speed: 2,100 rpm (can be upgraded to 2,300 rpm in specific projects)
- Ratio: 6.955
- Sample capacities: 418 kW (560 hp) at 1,200 rpm, 557 kW (747 hp) at 1,600 rpm, 626 kW (840 hp) at 1,800 rpm
- Dry weight: 1,270 kg (2,800 lb)
Standard equipment
- Oil cooler with fittings and flexible hoses
- 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 W3850 | 0,348 (0,467) | 731 (980) | 2100* | 6,955 | 418 (560) | 557 (747) | 626 (840) | 1270 (2800) |
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
Featured products
All products →
System / Package
Aalborg Waste Heat Recovery Economizers
Alfa Laval Aalborg marine waste heat recovery economizers produce steam from main and auxiliary engine exhaust, reducing fired boiler use, fuel consumption and CO2 emissions by up to 14%.
Equipment
Konrad Stern Drive Product Line (500, 600 and 600B Series)
Konrad Marine 500, 600 and 600B series stern drives for working and high-speed boats: models 520, 540, 560, 620, 660, 680, 620B, 660B and 680B.
Equipment
Cat 3512C High Displacement Marine Generator Set
V12 58.56 L high-displacement marine generator set, 1,550-1,700 ekW at 1800 rpm (60 Hz), IMO II, with dual turbochargers, A-III electronic control and electronic unit injection.
Similar products