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MARINE GEARBOX
REPAIR & OVERHAUL
SERVICES

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30% Cost Reduction
with Technology,
Maintaining
Reliability until the
next Overhaul
Timely Deployment
Manpower
(Access to Multiple
PRs & CDC)
Comprehensive
Support On-site,
Off-site, Remote,
including
Riding Squad
12-Month
Workmanship
Warranty
Access to technical
documents related
to clearance and
other calibration
Detailed
Work Completion
Report
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Introduction

Our marine gearbox repair services stand out for their comprehensive approach, addressing a variety of brands and models. With a commitment to excellence, we not only fix issues but provide a holistic solution for gearbox services in the marine sector.

In addition, we excel in gearbox repair, specializing in addressing gears across various marine applications, handling bearing failures, and resolving lubrication problems. Furthermore, we offer flexible repair and service contracts, along with expert assembly services for gearboxes. Committed to minimizing downtime, we provide emergency repair services that ensure vessels can return to operation swiftly. Our team offers on-site expertise to address issues as they arise. By leveraging advanced techniques, we accurately identify and efficiently resolve issues, ensuring our clients receive the highest level of service while maintaining the reliability and performance of their marine gearboxes.

By deploying cutting-edge technologies approved by industry standards, our objective is to deliver cost-effective, time-efficient solutions that elevate the operational efficiency and lifespan of marine gearboxes. We take pride in providing gearbox repair and overhaul services worldwide, utilizing our vast experience to serve clients in key hubs globally. Our strategic presence in India, South Asia, the Middle East, Europe, and Africa guarantees that our expertise is accessible to a broad and diverse customer base.

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Why choose Neptunus?

3 Decades of
Service Excellence
Engine & Propulsion
End-to-End Solutions
2500+ Sucessfull Projects
Delivered Worldwide
Trusted by 100+
Satisfied Customers
Dedicated Experts to
Address Emergencies

Challenges in Marine Gearbox Repair Services

  • 1. Scheduling conflicts:
Coordinating repair schedules with the vessel’s operational commitments and dry-dock availability is often challenging, potentially leading to rushed repairs or extended periods of reduced efficiency.
  • 2. Skill requirements:
Repairing and overhauling marine gearboxes requires specialized knowledge and skills, which can be challenging to maintain and update as technology evolves.
  • 3. Limited access:
Marine gearboxes are often located in confined spaces within the ship’s engine room, making access for inspection, maintenance, and repairs difficult and time-consuming.
  • 4. Corrosion:
Marine environments are highly corrosive due to saltwater exposure. This poses a significant challenge in maintaining and repairing gearboxes, as it can lead to accelerated wear and damage to components.
  • 5. Alignment precision:
Proper alignment of the gearbox with the engine and propeller shaft is crucial for optimal performance. Achieving and maintaining this precision in a constantly moving marine environment is challenging.
  • 6. High downtime costs:
For marine gearbox owners, any time a vessel is out of service for gearbox repairs represents significant lost revenue. Balancing the need for thorough maintenance with minimizing downtime is a constant challenge.

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Marine Gearbox Repair and Overhaul Services

  • 1. On-Site Gearbox Repairs & Overhaul:
Neptunus’ in-situ gearbox repair projects bring the expertise of skilled engineers directly to your location, offering a swift and tailored resolution to gearbox issues. Specializing in on-site projects, we ensure efficient solutions seamlessly integrate with your operations, providing convenience and expertise where you need it most.
  • 2. Workshop Gearbox and Component Repair & Overhaul:
Within our workshop, we excel in comprehensive gearbox and component repair services. Our skilled specialists utilize advanced tools and technology to conduct diagnostics, intricate repairs, and quality testing.

Process of Marine Gearbox Repair & Overhaul Services

  • Step 1 : Initial Inspection
We thoroughly inspect all external and internal gearbox components to identify any visible damage or abnormalities early on. This sets the path for repairs.
  • Step 2 : Disassembly
Our technicians methodically disassemble the gearbox, clearly labeling and documenting each part to enable tracking throughout the process. This organized approach provides access to internal components.
  • Step 3 : Cleaning and Decontamination
We use specialized cleaning techniques and solutions to remove all contaminants from the disassembled parts. Thorough cleaning enables comprehensive inspection and smooth reassembly.
  • Step 4 : Detailed Inspection
Using calibrated tools, we thoroughly inspect each component to accurately gauge damage, wear, and deviations from manufacturer specifications that require correction. This step is essential for identifying all necessary repairs.
  • Step 5 : Replacement of Worn Parts
Our team replaces damaged/worn-out components with new, OEM, or high-quality equivalents, as deemed necessary during the inspection. This step restores gearbox integrity and functionality.
  • Step 6 : Seal and Gasket Replacement
We proactively replace all seals and gaskets with new ones appropriately rated for marine gearboxes to prevent leaks and ensure oil-tight joints. This maintains operational efficiency.
  • Step 7 : Bearings and Gear Inspection
Components like bearings and gears are closely examined and tested to verify proper meshing, alignment, and lubrication flow. Correcting identified defects is vital for smooth functioning.
  • Step 8 : Lubrication
We lubricate all moving parts with manufacturer-recommended lubricants before reassembly to minimize friction during operation. This significantly reduces wear rate and heat generation.
  • Step 9 : Reassembly
Our technicians methodically reassemble all parts to their original specifications and sequence, ensuring correct alignment and functioning. This precision ensures quality repairs.
  • Step 10 : Testing and Quality Assurance
The gearbox undergoes rigorous testing on custom test benches simulating marine loads to validate repairs as per performance metrics. This verifies smooth operation before going back into service.
  • Step 11 : Report/Documentation
Every repair step is documented for future reference, along with details on replaced parts, measurements, and reassembly notes. Complete documentation ensures transparency.
  • Step 12 : Final Inspection
We re-inspect the gearbox visually and by testing across critical parameters to ensure all issues are addressed before delivery. This is the final quality confirmation.
  • Step 13 : Handover and Installation
The expert team takes responsibility for coordinating safe delivery and provides oversight during the reinstallation of the repaired gearbox as the final step. Proper guidelines prevent mishandling and re-damage.

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We Provide Gearbox Repair & Overhaul Services For The Following Brands

  • Niigata (OEM Authorized)
  • CAT (Caterpillar)
  • EMD (OEM Authorized)
  • Wartsila
  • Yanmar
  • MAN
  • MTU
  • Detroit
  • Wuxi
Machine Reliability Solution may cut downtime and is essential for efficient operations. Machine operation is impacted by a number of factors, including ageing, broken parts, environmental degradation, safety issues, efficiency loss, regulatory compliance, and unscheduled downtime. To guarantee that operations continue without interruption, maintenance must be performed.

In the marine industry, Gearbox maintenance, repair, and overhaul services are essential for overall operations as they minimize wear and tear, mitigate the risk of component failure, and maximize equipment efficiency. Neptunus also provides other prominent Ship Engine and Propulsion System Maintenance & Repair Services to ensure the reliability of assets within the marine industry and reduce the risk of unplanned downtime.

The other marine machine maintenance services are as folows:
  • Marine Diesel Engine Repair Services
Ensuring marine diesel engines remain in top condition is crucial for their reliability. Our Marine Diesel Engine Repair promptly address any issues, preventing breakdowns and maintaining peak performance at sea.
  • Marine Diesel Engine Overhaul Services
Diesel Engine Overhaul Services are essential for optimizing performance and longevity, reducing the risk of breakdowns and expensive repairs while enhancing the reliability of marine assets.
  • Marine Clutch Maintenance Services
Regular maintenance for marine clutches is vital for ensuring smooth operation. Our Marine Clutch Maintenance Services prevent slippage and premature wear, ensuring the asset operates reliably.
  • Bow-Thruster Maintenance & Repair Services
Timely Bow-Thruster Repair , and repair enhance the asset’s reliability, minimizing the risk of downtime and ensuring seamless sailing. We provide full maintenance services for many different engine brands around the world. The following is a list of the maintenance services we offer for various engine brands.
  • Niigata MRO Services for Engines
With an emphasis on offering top-notch engine and Z-Peller repair and overhaul services, we are OEM-approved Niigata Engine Repair Service provider.
  • Caterpillar Engine Maintenance & Repair Services
Our team of over 27 skilled engineers, which includes over six experts in cat diesel engine repair, ensures superior quality in Caterpillar Engine Repair Service by closely adhering to OEM manual instructions.
  • EMD Engine Maintenance Services
As OEM-approved experts, we offer maintenance, repair, and overhaul (MRO) services for EMD engines. Our EMD Engine Repair Service improve logentivity of the engine and this result in increase in reliability of overall engine performance.
  • Yanmar Engine Maintenance & Repairs
As a self-sufficient Yanmar Engine Repair and overhaul service provider, our objective is to improve the dependability of your engine via upkeep and repairs.
  • MAN Engine Maintenance Services
Neptunus is a reliable independent service provider with an exceptional record for quality for Maintenance MAN Engine Aside from maritime maintenance services, we specialise in Ship Engine Spare Parts for various well-known brands, including CAT, EMD, and Niigata (OEM Authorised). Our vast inventory, which includes marine engine brands, allows us to meet the diverse needs of our customers. We take great pride in offering authentic engine spare parts to our maritime clients at competitive prices, ensuring both quality and affordability.

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FAQs

Gearbox failure can be caused by several factors, including bearing failures, lubrication problems, and wear and tear on gears. Our services specialize in diagnosing and addressing these common issues.
Signs of a failing gearbox include unusual noises, difficulty in shifting gears, and reduced performance. Advanced diagnostic tools help us accurately identify these issues.
Prevent gearbox damage by ensuring regular maintenance, proper lubrication, and timely inspections. Our expert services include flexible repair contracts to keep your gearbox in optimal condition.
The turnaround time for gearbox repairs varies based on the extent of the damage, but we prioritize minimizing downtime with our efficient emergency repair services.
We ensure the quality of gearbox repairs by leveraging advanced diagnostic tools and industry-approved techniques, along with a commitment to maintaining reliability and performance.
The cost of a gearbox overhaul depends on the specific requirements of the job. We offer cost-effective solutions tailored to your needs while ensuring the highest standards.
A gearbox overhaul typically takes around 7 to 10 days, depending on the complexity and the condition of the gearbox. However, timelines may vary based on the availability of parts and the scope of repair work needed.

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Neptunus Power Plant Services Pvt. Ltd.

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India

Neptunus Main Office

A 554/555, TTC Industrial Area,
MIDC Mahape, Navi Mumbai,
Maharashtra 400710, India.

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Ras Al Khaimah Economic Zone,
RAKEZ Al Mamourah Street,
Ras Al-Khaimah, UAE.

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91400 Gometz-la-Ville,
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