ON LAND
AT SEA.

Installation, repair, and maintenance

for the industrial and maritime sectors.

📞 Phone / Switchboard

+46 11 26 59 56

📍 Visiting Address

Smedby Gård
605 94 Norrköping
Sweden

Our Services

Engines & Propulsion

Independent marine services, emergency ship repairs, and field maintenance on commercial vessels and industrial facilities.

Engine Operations

  • Computerized, brand-independent diagnostics for marine and industrial engines.
  • Preventive maintenance and ongoing machine service in the field.
  • Repair and overhaul of fuel injection systems.
  • Engine rebuilds and complete overhauls of heavy-duty diesel engines.
  • Authorized dealer and service partner for FPT Industrial and Baudouin.
Cylinder head replacement and service on marine diesel engine Cylinder head replacement
Overhaul of bow thruster motor for ships, marine mechanics Overhaul of bow thruster motor

Propulsion Systems

  • Laser alignment of drivetrains and shaft lines.
  • Service and maintenance of azimuth thrusters and Z-drives.
  • Repair and inspection of bow thruster systems.
  • Replacement and maintenance of support bearings and stern tube bearings.
  • Propeller repairs, polishing, and balancing.
Bearing and drive belt replacement with laser alignment of ship's drivetrain
Mechanical maintenance and replacement of propulsion units
Lifting and ship repair of azimuth thrusters

Power & Distribution

Technical troubleshooting, advanced industrial maintenance, and installation of electrical power equipment and marine electrical systems.

Power Systems

  • Troubleshooting and maintenance in switchgears and main switchboards.
  • Megger testing and localization of complex earth faults.
  • Thermal imaging (thermography) of electrical panels and components for preventive maintenance.
  • Installation and maintenance of shore power connections.
Updating the ship's main switchboard and installing generator breakers Main switchboard update with synchronization and new generator breakers
Thermal imaging report for preventive maintenance of marine electronics Excerpt from thermal imaging report

Distribution

  • Service and testing of circuit breakers.
  • Replacement of protection components and switchgear technology.
  • Calibration of motor protection relays and contactors.
Manufacturing of distribution panels for industrial generators and auxiliary power Distribution cabinet: internal and external view
Circuit breaker testing Schneider NSX Compact, marine electrical and automation Circuit breaker testing of Schneider NSX Compact

Gensets & Auxiliary Power

We deliver secure power solutions. We offer customized service and emergency agreements for immediate fault rectification and guaranteed reliable operation of your generators year-round.

Generators & Gensets

  • Sales and commissioning of marine and industrial generator sets.
  • Turnkey solutions for the replacement and new installation of gensets.
  • Design and manufacturing of custom generators adapted for unique operational requirements and harsh environments.
  • Preventive service and continuous maintenance agreements.
  • Emergency fault rectification and on-call service for critical backup power systems.
Replacement of 800kVA generator, installation of backup power and gensets Replacement of 800kVA generator
Construction of containerized 750kVA generator set for industrial use Manufacturing of a containerized genset (750kVA) for industrial applications.

Integration & Control

  • Synchronization and adjustment of generators for parallel operation.
  • Troubleshooting and replacement of Automatic Voltage Regulators (AVR).
  • Stocking and sales of the most common Automatic Voltage Regulators (AVR) for rapid response deployments.
  • Integration with the ship's or facility's main switchboard.
Updating voltage regulator AVR Nidec D350 on 1250kVA generator Update of AVR, Nidec D350. 1250kVA Generator

Hydraulics

Field service and troubleshooting. We design and manufacture complete hydraulic power units for both marine use and heavy industrial applications.

Hydraulics & Pipework

  • Engineering and manufacturing of complete hydraulic power units.
  • Troubleshooting and field service of existing systems, deck cranes, and winches.
  • Sales, installation, and servicing of Warrior winches for industrial and marine applications.
  • Manufacturing and crimping of hydraulic hoses on site.
  • Steel pipefitting and pressure testing of hydraulic systems.
  • Replacement and overhaul of hydraulic cylinders.
Design and service of marine hydraulics and power units

Welding & Surface

Professional ship repairs, field welding, and structural maintenance for harsh environments.

Welding & Fabrication

  • Certified welding operations in steel and aluminum.
  • Hull repairs, structural reinforcements, and steel plate renewals.
  • Advanced engineering and pipefitting for demanding industrial and marine systems.
Plate renewal in aluminum hull near rudder, ship repair and welding Plate renewal in aluminum hull by the rudder

Surface Coating

  • Mechanical cleaning and abrasive blasting to cleanliness grade Sa 2½.
  • Application of epoxy systems and anti-corrosive protective marine coatings.
  • Antifouling application for commercial marine vessels.
Anti-corrosive painting and epoxy systems for ship maintenance

Our Fleet

Our own floating assets provide us with unmatched capacity to carry out ship repairs, heavy lifting, and material transport in coastal and archipelago environments.

Sternberg Pilot boat and workboat for towing

Sternberg

Workboat & Towing Vessel

Former pilot boat built in 1990 at Holm's shipyard in Råå. Equipped with winches for barge coupling and operates in towing and barge transports.

  • Built 1990
  • Engine Volvo TAMD 122
  • Power 380 hp
  • Trading Area B
Sternholm Workboat for personnel and material transport

Sternholm

Workboat

Robust workboat built at the classic Lidwalls Shipyard. An agile unit for operations and barge transport in harbor and archipelago environments. Equipped with winches for barge coupling.

  • Shipyard Lidwalls
  • Engine Cummins 4BT
  • Power 150 hp
  • Trading Area D
Storskär Work barge with crane for heavy lifting at sea

Storskär

Work Barge

Autonomous floating workshop equipped with a ramp and support legs front and rear for stable anchoring during heavy lifting and project works.

  • Dimensions 19 x 7.5 m
  • Load Capacity Approx. 70 tons
  • Crane Palfinger 25 ton/m
  • Generator 200 kVA
Storö Cargo barge for heavy material transport

Storö

Barge

Our largest unit for heavy material transport. Used for relocation and sea transport of steel structures, pipes, and equipment. Can also be utilized as a stationary depot during constructions.

  • Dimensions 28.5 x 12.5 m
  • Load Capacity 330 tons
  • Trading Area D

Equipment & Support Units

Crane truck 22 ton/m for material transport and field work

Mobile Crane Truck

On-shore Support

Our crane truck is fully equipped for lifting and transporting materials and peripheral equipment directly to the quayside, enabling seamless field operations.

  • Capacity 22 ton/m crane
  • Application Material Transport & Lifting

Staff

Experienced technicians and field specialists in ship repairs, marine engineering, and industrial maintenance.

Albin Holmberg

CEO / Electrical, Navigation & Hydraulics

+46 76 240 37 14 albin@marinmotorteknik.se

Magnus Gunnarsson

Project Manager

+46 73 026 16 42 magnus@marinmotorteknik.se

Ludwig Stendahl

Engines, Propulsion & Hydraulics

Patrik Stenbäck

Electrical, Welding & Fabrication

Piotr Giza

Welding & Coating

Börje Stenbom

Workshop Operations

Send Inquiry

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