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Masson Marine Equipment

MM W5700

Reverse reduction marine gearbox (Masson Marine W range) with ratios 1.976–6.170, max rated input up to 1430 kW (1918 hp), dry weight 1500 kg.

Description

The MM W5700 is a reverse reduction marine gearbox from Masson Marine's W range with hydraulically actuated multi-disc clutches, designed for continuous duty in workboat and dredger applications. It is offered with ratios from 1.976 to 6.170.

Technical data

  • Ratios: 1.976, 2.369, 2.712, 3.132, 3.574, 4.082, 4.668, 5.354, 6.170
  • Power rating: 0.764 kW/rpm (1.025 hp/rpm) at 1.976–2.712 down to 0.361 kW/rpm (0.484 hp/rpm) at 6.170
  • Maximum rated input: up to 1430 kW (1918 hp)
  • Maximum input speed: 1872 rpm (1.976–3.132), 2130 rpm (3.574), 2400 rpm (4.082)
  • Sample capacities (1.976–2.712): 917 kW (1230 hp) at 1200 rpm, 1223 kW (1639 hp) at 1600 rpm, 1375 kW (1844 hp) at 1800 rpm
  • Dry weight: 1500 kg (3310 lb)

Key features

  • Robust design with easy onboard maintenance
  • 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
  • Fully works tested; design, manufacture and quality control to ISO standards
  • Suitable for twin installation with 100% rated power ahead and astern

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

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 W5700 0,764 (1,025) 1430 (1918) 1872 1,976 917 (1230) 1223 (1639) 1375 (1844) 1500 (3310)
2,369
2,712
0,710 (0,953) 1330 (1784) 3,132 853 (1143) 1137 (1524) 1279 (1715)
0,623 (0,835) 1326 (1779) 2130 3,574 747 (1002) 996 (1336) 1121 (1503)
0,545 (0,731) 1308 (1754) 2400 4,082 654 (877) 872 (1170) 981 (1316)
0,477 (0,639) 1144 (1534) 4,668 572 (767) 763 (1023) 858 (1151)
0,416 (0,557) 998 (1338) 5,354 499 (669) 665 (892) 748 (1003)
0,361 (0,484) 866 (1161) 6,170 433 (580) 577 (774) 649 (871)

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