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Masson Marine Equipment

MM W1920

Masson Marine MM W1920 reverse reduction marine gearbox, 0.188 kW/rpm, max input 526 kW (706 hp), max 2,800 rpm, ratios 3.040–4.941, dry weight 490 kg.

Description

The MM W1920 is a marine reduction gearbox from Masson Marine's W range, built for continuous duty in workboat and dredger 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
  • 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: 0.188 kW/rpm (0.252 hp/rpm) for ratios 3.040–3.591, decreasing to 0.146 kW/rpm (0.196 hp/rpm) at 4.941
  • Maximum rated input: 526 kW (706 hp)
  • Maximum speed: 2,800 rpm
  • Ratios: 3.040, 3.591, 4.050, 4.611, 4.941
  • Sample capacities (0.188 kW/rpm): 338 kW (454 hp) at 1,800 rpm, 395 kW (529 hp) at 2,100 rpm, 451 kW (605 hp) at 2,400 rpm
  • Dry weight: 490 kg (1,084 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
1800 rpm 2100 rpm 2400 rpm
MM W1920 0,188 (0,252) 526 (706) 2800 3,040 338 (454) 395 (529) 451 (605) 490 (1084)
3,591
0,186 (0,249) 521 (698) 4,050 335 (449) 391 (524) 446 (599)
0,163 (0,219) 456 (612) 4,611 293 (393) 342 (459) 391 (525)
0,146 (0,196) 409 (548) 4,941 263 (352) 307 (411) 350 (470)

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