Masson Marine Equipment
MM W3300 NR
Non-reversing marine reduction gearbox (Masson Marine W range) with high ratios 6.444–6.941; max rated input 651 kW (873 hp) at up to 2200 rpm, dry weight 1260 kg.
Description
The MM W3300 NR is a non-reversing marine reduction gearbox from Masson Marine's W range, designed for continuous duty in workboat and dredger applications. It offers high reduction ratios from 6.444 to 6.941 for high-speed engines.
Technical data
- Ratios: 6.444, 6.556, 6.941
- Power rating: 0.296 kW/rpm (0.397 hp/rpm) at 6.444; 0.280 kW/rpm (0.375 hp/rpm) at 6.556; 0.259 kW/rpm (0.347 hp/rpm) at 6.941
- Maximum rated input: 651 kW (873 hp) at 6.444; 616 kW (826 hp) at 6.556; 570 kW (764 hp) at 6.941
- Maximum input speed: 2200 rpm (can be upgraded to 2250 rpm in specific cases)
- Sample capacities (6.444): 355 kW (476 hp) at 1200 rpm, 474 kW (635 hp) at 1600 rpm, 533 kW (714 hp) at 1800 rpm
- Dry weight: 1260 kg (2780 lb)
Key features
- Robust design with easy onboard maintenance
- Hydraulically actuated multi-disc clutch
- 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
- Fully works tested; design, manufacture and quality control to ISO standards
Standard equipment
- Oil cooler with fittings and flexible hoses
- Integrated brackets
- Free-standing design
- Lube oil pump
Options
- Engine-matched torsional coupling
- Propeller shaft flange and coupling bolt set
- Classification by all major classification societies
- PTO (live or clutchable)
- Electric trolling valve for slow-speed drive
- Shaft brake
- Electric clutch control
- Trailing pump
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 W3300 | 0,296 (0,397) | 651 (873) | 2200* | 6,444 | 355 (476) | 474 (635) | 533 (714) | 1260 (2780) |
| 0,280 (0,375) | 616 (826) | 6,556 | 336 (451) | 448 (601) | 504 (676) | |||
| 0,259 (0,347) | 570 (764) | 6,941 | 311 (417) | 414 (556) | 466 (625) |
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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