REINTJES Gearbox

RDG / RDGL Series

200 – 800 | 300 – 10,000 kW

Purpose-built reduction gearboxes for dredge-pump applications — for pumps installed inboard or close-coupled underwater. Compact, reliable, and available with or without clutch (RDGL with internal hydraulic multi-disc clutch).

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REINTJES RDG / RDGL Dredge Gearbox view 2

High Operating Reliability

Built for the heavy, shock-laden duty of dredge pumps, with roller-bearing design and rugged housings.

Simple Operation & Maintenance

Straightforward design keeps servicing easy and downtime low across long dredging campaigns.

Compact Dimensions

Standardised shafts in custom-made housings deliver a tight, installation-friendly footprint.

One Supplier

Propulsion gearbox and dredging gearbox from a single source — backed by 80+ years of REINTJES experience.

Have a Dredge Project?

Our team specializes in fitting RDG / RDGL gearboxes to dredge pumps and dredge propulsion

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Continuous Duty

OperationContinuous operation with little or no variation in engine speed and power

Operating HoursUnlimited

Hull FormsDisplacement

ApplicationsMerchant ships

RDG / RDGL Dredge-Pump Gearbox

RDG / RDGL is a dredge-pump gearbox sized by engine power — reduction ratios and ratings are configured per project, so kW/rpm is not published per model. Power Ratings are approximate engine-power ranges from the REINTJES selection diagram; Main Dimensions (mm) and dry weights are from the brochure. RDGL = with internal hydraulic multi-disc clutch; RDG = without clutch. Total range 300 – 10,000 kW; larger sizes and different offsets available on request. For a binding selection, contact Karl Senner.

Callan Marine dredge underway, powered by REINTJES dredge-pump gearboxes — Callan Marine Dredge Underway

A Callan Marine cutter-head dredge in transit — its dredge pumps are driven through REINTJES RDG-series gearboxes engineered for continuous heavy-duty operation.

GE engine and REINTJES gearbox dredge-pump drivelines staged for installation — Complete Dredge-Pump Drivelines

GE engines close-coupled to REINTJES gearboxes and dredge pumps, staged for installation — a complete driveline package supplied and supported by Karl Senner.

Equipment

Versions

Reduction gearbox with roller bearings
Vertically offset configuration
RDG: reduction gearbox without clutch
RDGL: integrated hydraulic multi-disc clutch (steel / sinter friction)
Helical gearing for high-torque dredge-pump loads
High operating reliability, simple operation & maintenance
Compact dimensions; standardised shafts in custom-made housings
Propulsion and dredging gearbox from a single supplier

Output shaft with trapezoidal thread
Slide bearings
Flexible coupling
Mechanical overload protection
Electronic overload protection (gearboxes with built-in clutch)
Turn drive
Bell housing for close-coupled pump and/or engine
Horizontally offset configuration

Real-World Applications

Where These Gearboxes Go to Work

REINTJES RDG gearboxes drive the dredge pumps that keep America's waterways, harbors, and coastlines open — from Army Corps hopper dredges to cutter-suction fleets.