The Marine Piston Rod is a key component used in marine engines, hydraulic systems, and heavy-duty ship equipment. Working under continuous pressure, reciprocating motion, and humid offshore conditions, the piston rod must maintain high strength, surface hardness, and dimensional stability throughout long operating cycles.
At Zhangjiagang Xinjie Forging Co., Ltd., we manufacture forged Marine Piston Rod products for shipbuilding companies, marine diesel engine manufacturers, offshore engineering projects, and industrial equipment suppliers. From forging and heat treatment to machining and inspection, each process is controlled carefully to ensure stable quality and reliable performance.
Inside our workshop, forged steel bars move between heat treatment furnaces, CNC machining centers, and grinding equipment while technicians check straightness, surface finish, and dimensional tolerances throughout production. For large marine piston rods, even small machining deviations can affect sealing performance and operational stability once installed onboard.
Marine Piston Rod Specifications
|
Product Name |
Marine Piston Rod |
|
Manufacturing Process |
Open Die Forging / Free Forging |
|
Product Type |
Solid Rod / Hydraulic Piston Rod |
|
Diameter Range |
80 mm – 1000 mm |
|
Length Range |
Up to 10,000 mm |
|
Weight Range |
Up to 20 Tons |
|
Material Grades |
42CrMo, 20CrMo, 4140, 4340, Stainless Steel |
|
Heat Treatment |
Quenching & Tempering / Normalizing |
|
Surface Treatment |
Grinding / Polishing / Chrome Plating Optional |
|
Machining |
Rough Machining / Finish Machining |
|
Inspection Methods |
UT, Hardness Test, Dimensional Inspection |
|
Standards |
ASTM, DIN, EN10083, EN10250 |
|
Application |
Marine Engines & Hydraulic Systems |
|
Customization |
Available According to Drawings |
Forged Marine Piston Rods for Heavy-Duty Service
Marine piston rods are widely used in:
- Marine diesel engines
- Ship hydraulic systems
- Steering systems
- Offshore engineering equipment
- Marine lifting equipment
- Hydraulic cylinders
- Heavy marine machinery
Depending on customer requirements, we can manufacture:
- Large-diameter piston rods
- High-strength alloy steel rods
- Precision-machined piston rods
- OEM custom forged rods
- Heavy-duty hydraulic piston rods
Many marine applications require piston rods to maintain stable surface quality and straightness under repeated movement and pressure loads. Because of this, forging quality and machining accuracy are critical during production.
Material Options for Marine Piston Rod Forgings
The material selection of a Marine Piston Rod directly affects wear resistance, toughness, and service life.
At Zhangjiagang Xinjie Forging Co., Ltd., we manufacture piston rod forgings using:
- Carbon steel
- Alloy steel
- Heat-resistant steel
- Stainless steel
- Customized industrial-grade materials
Common material grades include:
- 42CrMo
- 20CrMo
- SCM420
- AISI 4140
- AISI 4340
We also support production according to:
ASTM standards
DIN standards
EN10083
EN10250
Material selection can be adjusted according to operating pressure, corrosion environment, and customer technical requirements.
Custom Marine Piston Rod Manufacturer
If you are looking for a reliable Marine Piston Rod manufacturer for marine engine or hydraulic system applications, Zhangjiagang Xinjie Forging Co., Ltd. can provide customized forging and machining solutions according to your drawings and technical specifications.
We welcome inquiries for OEM forged piston rods, marine hydraulic components, and heavy-duty industrial rod forgings.


