苏州苏净船用机械有限公司

What 苏州苏净船用机械有限公司 does

SJMATEK (Suzhou) Marine Machine Co. Ltd (苏州苏净船用机械有限公司) is a Suzhou-based designer and manufacturer of marine propulsion systems, established in 2013 as a subsidiary of Jiangsu Sujing Group. The company specializes in azimuth thrusters (fixed-pitch and controllable-pitch), tunnel thrusters, controllable pitch propellers (CPPs), pod thrusters, and shafting systems, covering power ranges from 10 kW to 40 MW across more than 40 vessel types including workboats, harbor tugs, offshore engineering vessels, research ships, passenger vessels, VLCCs, LNG carriers, and icebreakers. Technical differentiation rests on a portfolio of over 100 active patents spanning high-efficiency propeller design, electro-hydraulic intelligent control, vibration/noise reduction, anti-corrosion materials, and patented multi-motor anti-interference steering for azimuth thrusters. The company also offers integrated system solutions — all-electric powertrains, hybrid propulsion, and diesel-drive packages — positioning it for the green-shipping transition.

The business operates an enterprise field-sales model, selling directly to shipyards, shipowners, design institutes, and government/state vessel operators through a quote-based, custom-engineered sales process. Revenue is generated primarily through one-time equipment sales of propulsion units plus aftermarket installation, commissioning, maintenance, and spare-parts services. Products are approved by all major international classification societies (CCS, DNV, LR, BV, ABS, RS, RINA, KR, BKI, DNV-GL, ZY, ZC), and the company holds BV factory certification and CCS quality management system certification. With over 1,000 propulsion systems delivered and millions of operating hours accumulated across 37 countries, the company serves commercial, offshore, special-purpose, and government vessel segments worldwide. Notable reference projects include China's first all-electric tugs at Lianyungang, Shenzhen, and Zhoushan ports, China's first sea-based rocket recovery vessel, and the Zhang Jian full-ocean-depth research mother ship.

Name

苏州苏净船用机械有限公司

Legal name

SJMATEK (Suzhou) Marine Machine Co. Ltd

Website

https://sjmatek.com

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

1–10 employees

Short description

SJMATEK (Suzhou) Marine Machine Co. Ltd is a Chinese subsidiary of Jiangsu Sujing Group that designs and manufactures marine propulsion systems — azimuth thrusters, tunnel thrusters, controllable pitch propellers, and pod thrusters — serving shipyards, shipowners, and government operators across 37 countries with over 1,000 systems delivered.

Ownership category

akta.pro rank

Product category

Marine Propulsion Systems

NAICS

Ship Building and Repairing (336611), Ship and Boat Building (33661), Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing (333612)

SIC

Ship & Boat Building & Repairing (3730), Engines & Turbines (3510)

akta.pro primary industry

Azimuth Thrusters & Podded Propulsion (IMAJAHAF)

akta.pro secondary industries

Marine Hybrid & Electric Propulsion Systems (IMAJAHAC), Propellers & Waterjets (IMAJAHAE), Propulsion Drives, Gearboxes & Shaftlines (IMAJAHAD), Propulsion MRO, Spares & Field Service (Overhauls, retrofits, upgrades) (IMAJAHAN)

Keywords

• Marine propulsion systems
• Azimuth thrusters
• Tunnel thrusters
• Controllable pitch propellers
• Pod thrusters

Headquarters

HQ city

Suzhou

HQ country

China

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Technology or R&D, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Marine Propulsion Equipment Sales: Direct sales of azimuth thrusters, tunnel thrusters, pod thrusters, and controllable pitch propellers with power ranges from 10kW to 40MW. Products are sold with comprehensive solutions including propulsion units, engines/motors, frequency converters, shafting systems, and remote control systems.
2. Aftermarket Services and Spare Parts: Technical services including on-site installation guidance, commissioning support, maintenance, and spare parts supply for delivered propulsion systems. The company provides regular on-site inspections and customized maintenance plans.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

SJMATEK designs, manufactures, and services marine propulsion systems for commercial, offshore, and special-purpose vessels. Its core product portfolio includes Azimuth Thrusters (FP/CP), Tunnel Thrusters (FP/CP), Controllable Pitch Propellers, and Pod Thrusters spanning 10 kW to 40 MW, delivered as integrated solutions with diesel engines/electric motors, frequency converters, shafting, and remote control systems. The company also provides all-electric, hybrid, and diesel direct-drive propulsion system solutions along with on-site installation, commissioning, and after-sales maintenance services.

Product overview

SJMATEK offers a portfolio of marine propulsion products and integrated system solutions. The core product line consists of four main thruster/propeller types: Azimuth Thrusters (FP/CP, 10 kW-7 MW), Tunnel Thrusters (FP/CP, 10 kW-5 MW), Controllable Pitch Propellers (500 kW-40 MW), and Pod Thrusters (125 kW-10 MW). These are complemented by shafting systems and three integrated propulsion system solutions: All-Electric Powertrain, Hybrid Propulsion, and Diesel Engine Drive. The portfolio covers power ranges from 10 kW to 40 MW and serves over 40 vessel types including workboats, tugboats, research vessels, offshore vessels, passenger ships, and commercial vessels. The company positions itself as a 'Marine Power and Propulsion System Solutions Expert' providing comprehensive solutions including equipment, diesel engines/electric motors, frequency converters, shafting systems, and remote control systems.

Differentiator

Problem solved

Functional benefit

Products and services

• Azimuth Thruster (FP/CP) Z-type drive azimuth thruster transmitting power from diesel engines to propellers with full thrust vectored to any orientation; available in FP and CP variants with multiple installation types (well-mounted, retractable, tiltable, deck-mounted). Features patented anti-interference technology and multi-motor redundant steering. Applications include tugboats, firefighting vessels, offshore vessels, transport ships, and passenger ships.
• Tunnel Thruster (FP/CP) Marine thruster generating lateral thrust by expelling water sideways via propellers at bow or stern. Power range 10 kW to 5 MW, available in electric motor and diesel engine drive modes with high-precision feedback for dynamic positioning. Applications include workboats, engineering vessels, government vessels, special-purpose vessels, and DP-capable vessels.
• Controllable Pitch Propellers (CPP) Propeller system that regulates thrust magnitude and direction by altering blade pitch angle via internal hydraulic system and crank-slider mechanism. Features intelligent pitch control, five-blade design for smooth operation, cloud monitoring, and rapid response. Applications include research vessels, government vessels, cargo ships, and engineering vessels.
• Pod Thruster Integrated propulsion and steering unit utilizing electrical power transmission and vectored thrust technology with highly integrated design, high propulsive efficiency, excellent maneuverability, easy installation/removal, and reduced vibration/noise. Applications include luxury cruise ships, icebreakers, LNG carriers, and marine research vessels.
• All-Electric Powertrain System Complete electric propulsion system offering maximum operational flexibility, space optimization, quiet comfort, and future-readiness. Components include battery system, DC-DCC cabinet, DC distribution board, propulsion motor, and propeller. Designed for green ship technology and low-carbon maritime applications.
• Hybrid Propulsion System Combined propulsion system balancing environmental friendliness, fuel efficiency, flexibility, and reliability. Components include generator set, AC distribution board, battery system, inverter, diesel engine, gearbox, propulsion motor, and propeller. Positioned as the most attractive current solution balancing green and reliable operation.
• Diesel Engine Drive Power System Traditional propulsion system providing utmost reliability, lowest operating costs, and proven technology. Components include diesel engine, shafting system, and propeller. Targeted at operators prioritizing reliability and lowest total cost of ownership.
• Shafting System Shafting system components provided as part of comprehensive propulsion solutions, including shafting assemblies for power transmission between main engines and propellers. Sold as part of integrated propulsion packages rather than standalone.

Quantifiable outcome

• Over 1,000 propulsion systems delivered with millions of operating hours across six continents
• +4 more outcomes

Named customers6 records

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

One partnership is on record.

• Jiangsu Sujing Group (Parent Company)coreOthersSJMATEK (Suzhou) Marine Machine Co., Ltd is a subsidiary of Jiangsu Sujing Group. The company takes research & development, manufacture, and service of special marine propulsion as its leading role, developing products from land to sea. Relies on comprehensive advantages of talents, technologies, markets, and brands of the group for building a complete industrial chain.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Wärtsilä: Finnish global leader in marine propulsion systems, including azimuth thrusters, CPPs, and hybrid/electric powertrains. Direct competitor to SJMATEK across the full power range and vessel types, with a far larger installed base, global service network, and integrated solutions including engines and fuel systems.
• Kongsberg Maritime (Rolls-Royce Commercial Marine): Owner of the legacy Rolls-Royce azimuth/podded propulsion portfolio (incl. US205, US255, Mermaid). Directly comparable to SJMATEK's azimuth and pod thruster lines, particularly for offshore vessels, tugs, and naval applications, with deeper global service infrastructure.
• ABB Marine & Ports: Supplies electric and hybrid marine propulsion systems, including Azipod podded propulsion and integrated all-electric powertrains. Directly competes with SJMATEK's pod thruster and all-electric/hybrid solution offerings, particularly for premium and green-ship tenders.
• Kawasaki Heavy Industries (Ship & Offshore): Manufactures marine propulsion systems including azimuth thrusters and podded propulsion, and is a major Japanese shipbuilder. Competes with SJMATEK in Asia on integrated propulsion packages, particularly for Japanese yards and Asia-Pacific special-purpose vessels.

Direct peers

• Brunvoll: Norwegian thruster and CPP manufacturer with strong presence in offshore, fishing, and naval segments. Highly comparable to SJMATEK in product mix and specialization, with an established European reference base and similar focus on controllable-pitch technology.
• Nakashima Propeller: Japanese specialist in marine propellers, CPPs, and shafting systems, with strong shipyard relationships in Asia. Directly comparable to SJMATEK's CPP and shafting offerings across the same vessel type and power range.
• SCHOTTEL: German specialist in azimuth thrusters (SCD-Twin, STP), tunnel thrusters, and CPPs. Closest pure-play comparable to SJMATEK in product portfolio and target vessel segments (tugboats, offshore, special-purpose), competing head-to-head in mid-power ranges.
• ZF Friedrichshafen (Marine Propulsion): Supplies marine transmission, thruster, and propulsion control systems, including fixed-pitch and controllable-pitch propulsion packages. Comparable to SJMATEK in propulsion integration, gear/shaftline scope, and reach into commercial and offshore vessel markets.

Regional players

• CSIC Marine Technology (China State Shipbuilding Corp subsidiary): Chinese state-owned propulsion and marine equipment manufacturer affiliated with CSSC/CSIC shipyards. Directly comparable to SJMATEK as a Chinese domestic propulsion supplier targeting the same state-shipyard and government-vessel customer base.
• Niigata Power Systems: Japanese supplier of marine propulsion engines, CPPs, and integrated propulsion systems with strong Asia-Pacific shipyard relationships. Comparable to SJMATEK in offering integrated propulsion solutions to Asian commercial and government vessel programs.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks4 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/%E8%8B%8F%E5%B7%9E%E8%8B%8F%E5%87%80%E8%88%B9%E7%94%A8%E6%9C%BA%E6%A2%B0%E6%9C%89%E9%99%90%E5%85%AC%E5%8F%B8

Compliance14 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

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