IHI Hydraulic Pump Models 5P-29L/R, 6N-67VK, 6N-67-K, 6N-57-K, 6P-67LV, 6N-67RV, 6P67LV

Introduction

IHI Hydraulic Pumps are among the most widely used hydraulic power transmission components found in marine deck cranes, cargo cranes, grab cranes, hatch cover systems, and other deck machinery. These pumps are designed to provide stable hydraulic pressure and flow for hoisting, luffing, and slewing operations under demanding marine conditions.

The pump models 5P-29L/R, 6N-67VK, 6N-67-K, 6N-57-K, 6P-67LV, 6N-67RV, and 6P67LV are commonly found in IHI crane hydraulic systems and are frequently stocked by marine hydraulic specialists. These models are listed by marine hydraulic suppliers as IHI crane and deck machinery hydraulic pumps.

SM MARINE SERVICE™ supplies hydraulic pumps, hydraulic motors, hydraulic valves, and complete hydraulic spare parts for marine cranes and deck machinery worldwide.

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What Are IHI Hydraulic Pumps?

IHI hydraulic pumps convert mechanical energy from electric motors or diesel-driven systems into hydraulic energy. The pressurized hydraulic oil generated by these pumps powers:

• Hoisting Systems
• Luffing Systems
• Slewing Systems
• Grab Operations
• Hatch Cover Hydraulic Systems
• Deck Machinery

These pump series are primarily vane-type hydraulic pumps designed for continuous marine operation.

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Common IHI Hydraulic Pump Models

5P-29L/R

The 5P-29L/R is a single hydraulic pump commonly used in smaller crane hydraulic circuits and auxiliary hydraulic functions.

Applications:

• Auxiliary hydraulic circuits
• Small deck cranes
• Hydraulic power units
• Marine machinery systems

6N-67VK

The 6N-67VK is one of the most widely used IHI crane hydraulic pumps.

Applications:

• Crane Luffing System
• Crane Slewing System
• Cargo Handling Equipment
• Deck Machinery

This model is commonly listed by hydraulic suppliers as an IHI deck crane hydraulic pump.

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6N-67-K

The 6N-67-K pump is designed for heavy-duty hydraulic operations requiring reliable flow and pressure control.

Applications:

• Crane Main Hydraulic System
• Deck Crane Hydraulic Power Units
• Marine Cargo Cranes

Marine suppliers specifically identify this model as an IHI hydraulic vane pump used on deck cranes.

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6N-57-K

The 6N-57-K is frequently used in medium-capacity hydraulic systems.

Applications:

• Luffing Systems
• Auxiliary Winches
• Hatch Cover Hydraulics
• Marine Hydraulic Units

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6P-67LV

The 6P-67LV pump is generally found in left-hand rotation hydraulic systems and specialized crane configurations.

Applications:

• Crane Hydraulic Power Systems
• Hydraulic Winches
• Marine Handling Equipment

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6N-67RV

The 6N-67RV is typically used in right-hand rotation hydraulic systems.

Applications:

• Deck Crane Systems
• Cargo Crane Hydraulic Systems
• Hydraulic Winch Systems

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6P67LV

This model belongs to the same hydraulic pump family and is commonly installed in IHI deck machinery and marine crane applications.

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Key Features

• Marine-grade construction
• High-pressure hydraulic performance
• Long operational life
• Compact design
• Reliable oil flow control
• Suitable for continuous operation
• Easy maintenance
• Worldwide spare parts availability

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Hydraulic System Applications

These pumps are commonly installed in:

IHI Deck Cranes

• Hoisting System
• Luffing System
• Slewing System

IHI Hatch Cover Systems

• Hatch Opening
• Hatch Closing
• Hydraulic Locking

Marine Winches

• Mooring Winches
• Anchor Windlasses
• Cargo Winches

Offshore Equipment

• Deck Machinery
• Cargo Handling Systems
• Offshore Cranes

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Common Problems and Troubleshooting

Low Hydraulic Pressure

Possible Causes:

• Worn vane components
• Internal leakage
• Suction blockage
• Low hydraulic oil level

Excessive Noise

Possible Causes:

• Air entering the system
• Cavitation
• Worn bearings
• Damaged coupling

Oil Leakage

Possible Causes:

• Damaged shaft seals
• Worn gaskets
• Loose hydraulic fittings

Overheating

Possible Causes:

• Contaminated hydraulic oil
• Excessive load
• Restricted oil flow
• Internal wear

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Maintenance Recommendations

To maximize pump life:

• Regular hydraulic oil analysis
• Replace filters on schedule
• Monitor operating pressure
• Check pump noise and vibration
• Inspect shaft seals
• Perform periodic overhaul
• Use manufacturer-approved hydraulic oil

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Why These IHI Pumps Remain Popular

The 5P, 6N, and 6P series hydraulic pumps continue to be widely used because of:

• Proven marine reliability
• Simple maintenance procedures
• Long service life
• Excellent spare parts support
• Compatibility with many IHI crane models
• Availability of reconditioned units

These models continue to appear in marine hydraulic suppliers' inventories for IHI cranes and deck machinery.

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Frequently Asked Questions

Are these pumps still available?

Yes. New, used, and reconditioned units are available through marine hydraulic equipment suppliers.

Can these pumps be repaired?

Yes. Most models can be overhauled using replacement vanes, bearings, seals, and repair kits.

Are these pumps suitable for deck cranes?

Yes. They are specifically used in IHI deck cranes and marine hydraulic systems.

Are spare parts available?

Yes. Spare parts, seal kits, bearings, and overhaul kits are generally available through marine hydraulic suppliers.

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Short Product Description

The IHI Hydraulic Pump Series including 5P-29L/R, 6N-67VK, 6N-67-K, 6N-57-K, 6P-67LV, 6N-67RV, and 6P67LV are trusted marine hydraulic pumps widely used in IHI deck cranes, cargo cranes, hatch cover systems, and deck machinery. These pumps provide reliable hydraulic power for hoisting, luffing, and slewing operations and remain popular throughout the marine industry due to their durability, serviceability, and proven performance.

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SM MARINE SERVICE™

SM MARINE SERVICE™

Global Marine Equipment & Spare Parts Partner

Address: Samir Market, DT Road, Pahartali, Beside CDA Market, Chattogram, Bangladesh

Products Available:

• New Equipment
• Used Equipment
• Reconditioned Equipment

Services:

• Supply
• Repair
• Troubleshooting
• Calibration
• Overhaul
• Onboard Service

Stock Locations:

• Bangladesh Warehouse
• Shanghai, China Warehouse

Website: www.smmarineservice.com

Email: info@smmarineservice.com

Email: sohelbhuiyan1213@gmail.com

WhatsApp: +8801812131498

Worldwide Shipping and Technical Support Available.

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