- Fittings
- Valve parts
- Deck hardware
- Manifolds
- Cleats & mounts
- Prototypes
- Pump parts
- Propeller shafts
- Through-hull fittings
- Bushings
- Bearing housings
- Production batches
Applications
Which marine projects we take on
Marine and offshore components often operate under constant moisture, vibration and corrosive conditions. We support projects involving fittings, pump and valve parts, propeller shafts, manifolds and deck hardware, machined from corrosion-resistant materials with controlled interfaces and documented inspection.
WHY MACHINE MARINE PARTS WITH TONGYONG
From prototype to marine-grade production
We machine precision components for marine and offshore equipment, including pump parts, valve bodies, propeller shafts, manifolds and deck hardware. Using CNC milling, turning, 5-axis machining and EDM, we manufacture parts that withstand demanding marine operating conditions.
Marine applications require reliable performance under saltwater exposure, vibration and continuous operation. We machine corrosion-resistant materials with controlled tolerances and documented inspection, helping prototypes transition smoothly into repeatable production.
ISO 9001 Certified Quality
Quality management with documented inspection and consistent machining for marine applications.
Production Capacity
From prototype quantities to repeatable production for marine and offshore equipment.
Marine Material Capability
Stainless steel, duplex stainless, bronze, aluminium and other corrosion-resistant alloys.
Corrosion-Ready Manufacturing
Precision machining for components exposed to moisture, vibration and saltwater environments.
Experienced Engineering
Engineering support for marine components with demanding fit, sealing and durability requirements.
Easy RFQ Process
Upload your drawings to receive a manufacturability review and quotation.
Processes
CNC Machining Processes We Support
CNC Milling
Multi-axis milling for housings, brackets, plates and complex geometries with reliable dimensional control.
CNC Turning
Precision turning for shafts, sleeves, bushings and rotational components with controlled dimensions and surface finishes.
5-Axis CNC Machining
Complex multi-face components machined with advanced 5-axis capabilities for challenging geometries.
Micromachining
Precision machining for miniature components with micro features, fine details and tight dimensional requirements.
EDM Machining
High-precision machining for hardened materials, intricate profiles and complex features.
Surface Finishing
Enhance part appearance, corrosion resistance, and surface performance with anodizing, plating, coating, and other finishing solutions.
Common questions
Marine machining FAQs
What materials do you recommend for saltwater/marine applications?
For marine and saltwater exposure, we recommend marine grade aluminum, 316 stainless steel, or bronze — these resist pitting and galvanic corrosion better than standard-grade alternatives like 304 stainless or brass. Titanium is also an option for the highest corrosion resistance.
Can you machine custom marine hardware like switch panels?
Yes, we machine custom marine switch panels, boat steering components, and other marine hardware. Share your drawing and material preference and we'll confirm feasibility and finish options.
Do you offer corrosion-resistant surface finishing for marine parts?
Yes, we offer anodizing, passivation, and other surface finishes suited to marine environments to further improve corrosion resistance. The right finish depends on your base material and exposure conditions.
Can brass be used for marine parts?
Standard brass is vulnerable to dezincification in saltwater and isn't recommended for critical underwater components. We recommend bronze or 316 stainless steel for parts with direct or prolonged saltwater exposure.
What tolerance can you hold for marine coupling and shaft components?
Marine shaft and coupling parts often require tight tolerances for concentricity — we can discuss the specific tolerance class needed for your application during quoting.