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Masson Marine Equipment

MM W6400 NR

Masson Marine MM W6400 NR non-reversing reduction marine gearbox, 0.603 kW/rpm, max input 1,266 kW (1,698 hp), max 2,100 rpm, ratios 6.170–7.446, dry weight 2,000 kg.

Description

The MM W6400 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: 0.603 kW/rpm (0.808 hp/rpm) at ratio 6.170; 0.576 at 6.461; 0.523 at 7.099; 0.497 kW/rpm (0.667 hp/rpm) at 7.446
  • Maximum rated input: 1,266 kW (1,698 hp)
  • Maximum speed: 2,100 rpm
  • Ratios: 6.170, 6.461, 7.099, 7.446
  • Sample capacities (ratio 6.170): 723 kW (970 hp) at 1,200 rpm, 965 kW (1,294 hp) at 1,600 rpm, 1,085 kW (1,455 hp) at 1,800 rpm
  • Dry weight: 2,000 kg (4,410 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 W6400 0,603 (0,808) 1266 (1698) 2100 6,170 723 (970) 965 (1294) 1085 (1455) 2000 (4410)
0,576 (0,772) 1209 (1621) 6,461 691 (926) 921 (1235) 1036 (1390)
0,523 (0,702) 1099 (1474) 7,099 628 (842) 837 (1123) 942 (1263)
0,497 (0,667) 1044 (1400) 7,446 597 (800) 795 (1067) 895 (1200)

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