Masson Marine Equipment
MM W4000 NR
Masson Marine MM W4000 NR non-reversing reduction marine gearbox, 0.510 kW/rpm, max input up to 957 kW (1,283 hp), max 1,800–2,800 rpm depending on ratio, ratios 3.077–5.978, dry weight 1,270 kg.
Description
The MM W4000 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: 0.510 kW/rpm (0.684 hp/rpm) at ratio 3.077, decreasing to 0.262 kW/rpm (0.351 hp/rpm) at 5.978
- Maximum rated input / speed: 918 kW (1,231 hp) at 1,800 rpm; 902 kW at 2,000 rpm; 918 kW at 2,300 rpm; 957 kW (1,283 hp) at 2,600 rpm; 949 kW at 2,800 rpm
- Ratios: 3.077, 3.474, 3.923, 4.258, 4.625, 5.248, 5.978
- Sample capacities (0.510 kW/rpm): 612 kW (821 hp) at 1,200 rpm, 816 kW (1,094 hp) at 1,600 rpm, 918 kW (1,231 hp) at 1,800 rpm
- Dry weight: 1,270 kg (2,800 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 W4000 | 0,510 (0,684) | 918 (1231) | 1800 | 3,077 | 612 (821) | 816 (1094) | 918 (1231) | 1270 (2800) |
| 0,451 (0,605) | 902 (1210) | 2000 | 3,474 | 541 (726) | 722 (968) | 812 (1089) | ||
| 0,399 (0,535) | 918 (1231) | 2300 | 3,923 | 479 (642) | 638 (856) | 718 (963) | ||
| 0,368 (0,493) | 957 (1283) | 2600 | 4,258 | 442 (592) | 589 (790) | 662 (888) | ||
| 0,339 (0,455) | 949 (1273) | 2800 | 4,625 | 407 (546) | 542 (727) | 610 (818) | ||
| 0,298 (0,399) | 834 (1118) | 5,248 | 358 (479) | 477 (639) | 536 (719) | |||
| 0,262 (0,351) | 734 (984) | 5,978 | 314 (422) | 419 (562) | 472 (633) |
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 →
Component
A100-L / A200-L
Accelleron A100-L and A200-L turbochargers for low-speed two-stroke marine engines from 3,000 kW to 28,000 kW, with efficiency up to 75%, up to 30% lower weight than TPL-B and Turbo Insights included.
Equipment
Cat C1.5 Marine Generator Set
Compact 3-cylinder 1.5 L naturally aspirated diesel marine genset, 10-12 ekW at 1500/1800 rpm (50/60 Hz), U.S. EPA Tier 3, available open or with sound enclosure.
Equipment
OceanGlide
Alfa Laval OceanGlide fluidic air lubrication system creates an even, controllable air layer across a ship's flat bottom to cut hull friction and propulsion power; fuel savings up to 10% reported on M/V Tharsis.
Similar products