Masson Marine Equipment
MM W8450
Masson Marine MM W8450 high-ratio reverse reduction marine gearbox with integrated roller thrust bearing, 0.760 kW/rpm, max input 1,596 kW (2,140 hp), max 2,100 rpm, ratios 8.173–14.577, dry weight 3,800 kg.
Description
The MM W8450 is a marine reduction gearbox from Masson Marine's W range, built for continuous duty in workboat 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
- Integrated roller thrust bearing
- 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: 0.760 kW/rpm (1.019 hp/rpm) at ratio 8.173, decreasing to 0.470 kW/rpm (0.630 hp/rpm) at the highest ratios
- Maximum rated input: 1,596 kW (2,140 hp)
- Maximum speed: 2,100 rpm
- Ratios: 8.173 to 14.577
- Sample capacities (0.760 kW/rpm): 912 kW (1,223 hp) at 1,200 rpm, 1,140 kW (1,529 hp) at 1,500 rpm, 1,368 kW (1,835 hp) at 1,800 rpm
- Dry weight: 3,800 kg (8,380 lb)
Standard equipment
- Oil cooler with fittings and flexible hoses
- Integrated brackets
- Free standing only
- Single oil filter
- Manual clutch control
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
- 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 | 1500 rpm | 1800 rpm | ||||||
| MM W8450 | 0,760 (1,019) | 1596 (2140) | 2100 | 8,173 | 912 (1223) | 1140 (1529) | 1368 (1835) | 3800 (8380) |
| 0,680 (0,912) | 1428 (1915) | 8,707 | 816 (1094) | 1020 (1368) | 1224 (1641) | |||
| 9,129 | ||||||||
| 0,620 (0,831) | 1302 (1746) | 9,552 | 744 (998) | 930 (1247) | 1116 (1497) | |||
| 10,015 | ||||||||
| 10,706 | ||||||||
| 11,068 | ||||||||
| 11,745 | ||||||||
| 0,602 (0,807) | 1264 (1695) | 12,096 | 722 (969) | 903 (1211) | 1084 (1453) | |||
| 0,495 (0,664) | 1040 (1394) | 12,540 | 594 (797) | 743 (996) | 891 (1195) | |||
| 0,470 (0,630) | 987 (1324) | 13,190 | 564 (756) | 705 (945) | 846 (1135) | |||
| 13,858 | ||||||||
| 14,577 |
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
- Masson Marine MM W3300 DS Dual-Speed Gearbox
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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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