Bosch Rexroth Deck Crane Hydraulic System

Hydraulic Pump, Hydraulic Motor, HPU, Cylinder, Valve Block & Control System

Bosch Rexroth Deck Crane Hydraulic System

Bosch Rexroth is one of the world's leading manufacturers of marine and offshore hydraulic technology. Their hydraulic systems are widely installed on cargo vessel deck cranes, offshore cranes, heavy-lift cranes, service cranes, provision cranes, and multipurpose shipboard lifting equipment.

A complete Bosch Rexroth Deck Crane Hydraulic System consists of hydraulic pumps, hydraulic motors, hydraulic power units (HPU), hydraulic cylinders, valve blocks, and electronic control systems working together to provide safe and efficient lifting operations.

SM MARINE SERVICE™ supplies Bosch Rexroth hydraulic pumps, motors, cylinders, valve blocks, HPU units, spare parts, repair services, troubleshooting support, and worldwide marine hydraulic solutions.

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Bosch Rexroth Deck Crane Hydraulic Applications

Bosch Rexroth hydraulic systems are commonly installed on:

• Cargo Ship Deck Cranes
• Offshore Platform Cranes
• Heavy Lift Cranes
• Provision Cranes
• Container Handling Cranes
• Service Cranes
• Multipurpose Vessel Cranes
• Offshore Construction Cranes

These systems provide precise load handling, smooth motion control, high reliability, and low maintenance requirements.

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Bosch Rexroth Hydraulic Pump for Deck Cranes

The hydraulic pump is the heart of the crane hydraulic system.

Common Bosch Rexroth pump series found onboard include:

• A4VG Series
• A4VSO Series
• A10VSO Series
• A11VO Series
• A20VO Series
• A7VO Series

Main Functions

• Generates hydraulic pressure
• Supplies oil flow to crane functions
• Controls lifting speed
• Supports slewing and luffing operations
• Provides energy-efficient operation

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Bosch Rexroth Hydraulic Pump Examples

SM MARINE SERVICE™ provides new, used, and reconditioned Bosch Rexroth hydraulic pumps for marine applications.

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Bosch Rexroth Hydraulic Motor for Deck Cranes

Hydraulic motors convert hydraulic energy into mechanical rotation.

Common motor series include:

• A6VM Series
• A2FM Series
• A2FE Series
• MCR Series
• Hägglunds Series

Applications

• Hoisting Winches
• Slewing Drives
• Luffing Systems
• Rope Drums
• Auxiliary Crane Drives

Advantages

• High torque output
• Smooth speed control
• Heavy-duty operation
• Compact design
• Long service life

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Bosch Rexroth Hydraulic Motors

SM MARINE SERVICE™ offers hydraulic motor repair, testing, calibration, overhaul, and replacement services.

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Bosch Rexroth Hydraulic Power Unit (HPU)

The Hydraulic Power Unit supplies pressurized oil to all crane hydraulic functions.

Typical HPU Components

• Hydraulic Oil Tank
• Electric Motor
• Hydraulic Pump
• Oil Cooler
• Filters
• Pressure Relief Valves
• Accumulators
• Instrumentation

Functions

• Generates hydraulic pressure
• Maintains system oil quality
• Controls oil temperature
• Protects hydraulic components

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Bosch Rexroth Hydraulic Power Unit

HPUs are available in standard and custom-built configurations depending on crane capacity and vessel requirements.

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Bosch Rexroth Hydraulic Cylinders

Hydraulic cylinders provide the linear motion required for crane operations.

Main Cylinder Types

• Luffing Cylinders
• Boom Cylinders
• Extension Cylinders
• Folding Boom Cylinders
• Stabilization Cylinders

Benefits

• High load capacity
• Accurate positioning
• Corrosion-resistant construction
• Long operating life

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Bosch Rexroth Crane Hydraulic Cylinders

SM MARINE SERVICE™ supplies cylinder seals, rods, piston assemblies, repair kits, and complete cylinder overhauls.

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Bosch Rexroth Valve Block and Hydraulic Manifold

Valve blocks control hydraulic flow and pressure throughout the crane system.

Common Valve Functions

• Directional Control
• Load Holding
• Pressure Relief
• Flow Control
• Emergency Shutoff
• Counterbalance Functions

Benefits

• Safe crane operation
• Smooth movement control
• Protection against overload conditions
• Reduced hydraulic shock

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Bosch Rexroth Valve Block Systems

Valve block failures are among the most common causes of crane operational problems, making preventive maintenance essential.

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Bosch Rexroth Crane Control System

Modern Bosch Rexroth deck cranes utilize advanced electronic control systems.

System Components

• PLC Controller
• Joystick Controls
• HMI Display
• Sensors
• Pressure Transmitters
• Load Monitoring Systems
• Safety Interlocks

Functions

• Crane motion control
• Safety monitoring
• Alarm management
• Load limitation
• Diagnostic support

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Bosch Rexroth Crane Automation System

Advanced control systems improve safety, precision, and operational efficiency onboard vessels.

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Common Deck Crane Hydraulic Problems

Low Hydraulic Pressure

Possible Causes:

• Worn pump
• Relief valve malfunction
• Internal leakage
• Contaminated oil

Slow Crane Movement

Possible Causes:

• Dirty filters
• Worn hydraulic motor
• Insufficient oil flow
• Valve malfunction

Excessive Oil Temperature

Possible Causes:

• Blocked cooler
• Low oil level
• Overloaded operation
• Pump wear

Hydraulic Leakage

Possible Causes:

• Damaged seals
• Worn hoses
• Cylinder leakage
• Loose fittings

SM MARINE SERVICE™ provides onboard troubleshooting and hydraulic system diagnostics worldwide.

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Preventive Maintenance Recommendations

• Monitor oil cleanliness
• Replace filters regularly
• Inspect hydraulic hoses
• Check pressure settings
• Verify accumulator condition
• Monitor oil temperature
• Inspect cylinders for leakage
• Perform periodic pump and motor testing

Regular maintenance significantly extends the life of Bosch Rexroth hydraulic equipment.

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Why Bosch Rexroth Remains an Industry Leader

Bosch Rexroth hydraulic systems are trusted worldwide because of:

• Exceptional reliability
• Global spare parts availability
• High efficiency
• Long service life
• Advanced engineering
• Proven marine performance
• Excellent aftermarket support

Their systems continue to be installed on commercial vessels, offshore units, and specialized marine equipment around the globe.

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Frequently Asked Questions

Which Bosch Rexroth pump series are most common on marine deck cranes?

A4VG, A4VSO, A10VSO, A11VO, and A20VO series are among the most widely used.

Can Bosch Rexroth hydraulic motors be repaired?

Yes. Most A6VM, A2FM, A2FE, and MCR motors can be repaired and reconditioned.

Does SM MARINE SERVICE™ supply reconditioned units?

Yes. Both new and reconditioned equipment are available depending on customer requirements.

Do you provide technical support?

Yes. Technical support, troubleshooting, spare parts sourcing, overhaul, and repair services are available worldwide.

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Bosch Rexroth Deck Crane Hydraulic System Supplier

SM MARINE SERVICE™ supplies:

• Bosch Rexroth Hydraulic Pumps
• Bosch Rexroth Hydraulic Motors
• Bosch Rexroth Hydraulic Power Units (HPU)
• Bosch Rexroth Hydraulic Cylinders
• Bosch Rexroth Valve Blocks
• Bosch Rexroth Control Systems
• Genuine and Alternative Spare Parts
• New Equipment
• Reconditioned Equipment
• Repair and Overhaul Services

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SM MARINE SERVICE™

Bangladesh Office
Samir Market, DT Road, Pahartali, Beside CDA Market, Chattogram, Bangladesh

China Warehouse and Support Center
Shanghai, China

Website: www.smmarineservice.com

Email: info@smmarineservice.com

Marketing Contact: Nazmul Hasan Bhuiyan

SM MARINE SERVICE™ supplies New Equipment and Reconditioned Equipment depending on customer requirements, including hydraulic pumps, motors, HPU systems, cylinders, valve blocks, spare parts, repair services, calibration, troubleshooting, and worldwide marine technical support.

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