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Masson Marine Equipment

MM W8200 NR

Non-reversing marine reduction gearbox (Masson Marine W range) for workboats and dredgers; ratios 2.952–5.116, max rated input up to 1372 kW (1839 hp), dry weight 1800 kg.

Description

The MM W8200 NR is a non-reversing marine reduction gearbox from Masson Marine's W range, designed for continuous duty in workboat and dredger applications. It is rated for engines up to 1443–1700 rpm depending on ratio, with ratios from 2.952 to 5.116.

Technical data

  • Ratios: 2.952, 3.443, 4.023, 4.530, 5.116
  • Power rating: 0.950 kW/rpm (1.274 hp/rpm) at 2.952 down to 0.548 kW/rpm (0.735 hp/rpm) at 5.116
  • Maximum rated input: up to 1372 kW (1839 hp)
  • Maximum input speed: 1443 rpm (ratio 2.952), 1683 rpm (3.443), 1700 rpm (4.023)
  • Sample capacities (ratio 2.952): 950 kW (1274 hp) at 1000 rpm, 1140 kW (1529 hp) at 1200 rpm
  • Dry weight: 1800 kg (3970 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

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
1000 rpm 1200 rpm 1600 rpm
MM W8200 NR EW 0,950 (1,274) 1371 (1838) 1443 2,952 950 (1274) 1140 (1529) (-) 1800 (3970)
0,815 (1,093) 1372 (1839) 1683 3,443 815 (1093) 978 (1312) 1304 (1749)
0,697 (0,935) 1185 (1589) 1700 4,023 697 (935) 836 (1122) 1115 (1496)
0,619 (0,830) 1052 (1411) 4,530 619 (830) 743 (996) 990 (1328)
0,548 (0,735) 932 (1249) 5,116 548 (735) 658 (882) 877 (1176)

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