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Wuxi Yushen Hydraulic Equipment Co., Ltd. was established in 1990. The company integrates product research and development, production, manufacturing, processing, operation, sales, and technical services. Our company specializes in the production of precision long shafts, piston rods, hollow rods, multi-stage cylinder piston rods. It is manufactured with advanced technology such as peeling, barreling and straightening, precision, high-precision polishing, electroplating-type plating cylinder, and bleeding (hollow piston rod obtained national patent ZL201720904689.X), and all indicators have reached national and international advanced levels. It can be directly used in mechanical guide rods, guide rails and other products such as oil cylinders, air cylinders, shock absorbers, linear guides, etc., with complete metric and inch specifications.

Why Choose US

Product Application

Our company Products are widely used in metallurgy, chemical industry, textile, shipbuilding, military industry, construction machinery, transportation logistics, auto maintenance equipment, rubber machinery and other industries.

Advanced Equipment

Our Company is provided with the advanced production and processing equipment, measuring instruments and the first-rate working environment, thus making this enterprise have a stronger production capability and market competitiveness.The equipment covers a wide range of processes, including turning, grinding, cold drawing, tempering, quenching and tempering, electroplating, gantry machining center, and welding.

Professional Team

YS Hydraulic focuses on precision cold drawn steel tube,honing hydraulic cylinder tube/ pipe,anchor drill and hydraulic cylinder research and producing, after years of practice, has the abundant technical force and the good team.Our design team is experienced in product design and development.

Excellent service

The company always puts quality in the first place, has a complete after-sales service system, and is guided by technology, backed by talents, and wholeheartedly provides high-quality products and services to new and old customers at home and abroad.

New Forged Piston Rod
The new forged piston rod is a high-performance mechanical part commonly used in internal combustion engines, compressors and other industrial equipment.

Types of Forged Bar

New Forged Piston Rod
The new forged piston rod is a high-performance mechanical part commonly used in internal combustion engines, compressors and other industrial equipment.

Advantages of New Forged Piston Rod

Strength and Durability

Forged pistons are made from a solid piece of metal, which makes them stronger and more durable than cast pistons. This added strength helps them withstand higher pressures and temperatures, reducing the risk of failure under extreme conditions.

Weight Reduction

Forged pistons can be designed to be lighter than their cast counterparts without sacrificing strength. This reduction in weight can lead to improved engine performance and efficiency.

Better Heat Dissipation

Forged pistons typically have better thermal conductivity, allowing them to dissipate heat more effectively. This can help maintain optimal operating temperatures and reduce the risk of engine knock or pre-ignition.

Improved Performance

The strength and weight advantages of forged pistons can lead to better engine responsiveness and performance. They can handle higher RPMs and power outputs, making them ideal for racing and high-performance applications.

Customizability

Forged pistons can be manufactured to specific tolerances and designs, allowing for tailored performance characteristics. This is particularly beneficial for engines that require unique specifications for optimal performance.

Reduced Expansion

Forged pistons tend to have lower thermal expansion rates compared to cast pistons, leading to better fit and sealing within the cylinder. This can improve overall engine efficiency and reduce oil consumption.

Specification

Size	OD: 40-320mm ID :30-280mm
Length	1m -9m
Material	CK45/ ST52/ 20MnV6/ 42CrMo4/ 40Cr/ bearing steel/ stainless steel
Tolerance	ISO f7
Chrome thickness	20~30micron
Hardness of the chrome layer	800HV (min)
Roughness	Ra 0.2micron (max)
Straightness	0.2/1000mm
Yield Strength	≥350 Mpa
Tensile Strength	≥580 Mpa
Elongation	≥ 15%
Supply condition	1.Hard chrome plated
	2.Induction hardened
	3.Quenched & Tempered
	4.Induction hardened with Q&T

Chemical Composition

Material	C%	Mn%	Si%	S%	P%	V%	Cr%
				<=
CK45	0.42-0.50	0.50-0.80	0.17-0.37	0.035	0.035
ST52	<=0.22	<=1.6	<=0.55	0.035	0.035	0.10-0.20
20MnV6	0.16-0.22	1.30-1.70	0.1-0.50	0.035	0.035
42CrMo4	0.38-0.45	0.60-0.90	0.15-0.40	0.03	0.03		0.90-1.20
4140	0.38-0.43	0.75-1.0	0.15-0.35	0.04	0.04		0.80-1.10
40Cr	0.37-0.45	0.50-0.80	0.17-0.37				0.80-1.10

Application of Piston Rod in Oil and Gas Engineering

Application in drilling equipment

In the oil and gas drilling process, the mud pump is one of the key equipment, and the piston rod is the core component of the mud pump. Mud pumps are used to transport drilling fluid (mud) from the ground to the drill bit. These fluids cool the drill bit, carry cuttings, and maintain wellbore stability. The piston rod promotes the flow of mud through its reciprocating motion, ensuring continuous supply of drilling fluid and maintenance of pressure. Due to the harsh environment during drilling, the piston rod must have sufficient strength and wear resistance to withstand the high pressure and high wear working conditions.

Application in fracturing equipment

Fracturing operations are an important technical means to increase the production of oil and gas wells. During fracturing operations, a high-pressure pump injects liquid mixed with chemical additives and proppant into the formation to form fractures and enhance oil and gas mobility. The piston rod in the fracturing pump generates high-pressure liquid through its high-frequency reciprocating motion, which places extremely high requirements on the material strength and surface treatment of the piston rod. To ensure successful fracturing operations, the piston rod must have excellent pressure resistance and fatigue resistance.

Improve applications in devices

In oil and gas production, pumping units are the main equipment for lifting underground oil and gas resources to the surface. The beam pumping unit is a common mechanical lifting device. Its core working principle is to pump the liquid in the oil well to the surface through the reciprocating motion of the piston rod. The quality and reliability of the piston rod directly affect the output of the oil well and the maintenance cost of the equipment. Since the pumping unit needs to run continuously for a long time, the piston rod must have extremely high wear resistance and corrosion resistance to cope with the complex underground environment and long-term mechanical wear.

Application in control valves

In the transportation and processing of oil and gas, control valves are key components used to regulate the flow, pressure and direction of fluids. The piston rod is used in various control valves to ensure the safe and stable flow of fluid in the pipeline system by adjusting the opening and closing status of the valve. Since control valves are often exposed to high pressure and corrosive media, the piston rod needs to have good corrosion resistance and sealing performance to prevent leakage and damage.

Other Services

Payment terms
Commonly two payment term for new customers:
1) 30% T/T as deposit , 70% balance against B/L copy;
2) 100% Irrevocable L/C at sight;If you need any other terms, pls feel free to contact us too.

Packaging

Package	Standard export seaworthy package,suit for all kinds of transport, or as required.
Package	Water-proof Paper + Edge protection + Wooden Pallets
Bulk Size	Any size
Loading Port	Shanghai / Ningbo
Container	1 x 20ft container load Max. 25 Ton, Max. length 5.8m
Container	1 x 40ft container load Max. 30 Ton, Max. Length 11.8m
Delivery Time	About 2 weeks or according to the order's quantity

Shipping
Our customers have a wider range of processing choices for transportation
By Express ( FedEx, UPS, DHL, TNT, EMS, etc... )
- Advantage: Fast ( takes about 7 - 10 days in the delivery ), door to door.
By Air Transportation
- Advantage: Fast ( takes about 8 - 12 days ), a little cheaper than Express.
By Sea ( Ocean ) Transportation
- Advantage: Much cheaper than Express or Air transportation.

FAQ

Q: What is the stainless steel pneumatic cylinder hard chrome rods?

A: Stainless steel hard chrome rods are mainly used for hydraulic and pneumatic piston rods for engineering machinery, automobile manufacturing, guide posts for plastic machinery, rollers for packaging machinery, printing machinery, textile machinery, axis for conveying machinery, and linear optical axis for linear motion. . The piston rod is processed by rolling. Because the surface layer has residual surface stress, it helps to close the micro cracks on the surface and hinder the expansion of corrosion.

Q: What are the characteristics of stainless steel pneumatic cylinder piston rod?

A: The stainless steel pneumatic cylinder piston rod is processed by rolling. Because the surface layer has residual surface stress, it helps to close the surface micro cracks and hinder the expansion of corrosion.
Thereby improving the surface corrosion resistance, and can delay the generation or expansion of fatigue cracks, thereby improving the fatigue strength of the cylinder rod. Through roll forming, a cold work hardened layer is formed on the rolled surface, which reduces the elastic and plastic deformation of the contact surface of the grinding pair, thereby improving the wear resistance of the cylinder rod surface and avoiding burns caused by grinding. After rolling, the surface roughness value is reduced, which can improve the mating properties. At the same time, the friction damage to the sealing ring or the sealing element during the movement of the cylinder rod piston is reduced, and the overall service life of the pneumatic cylinder is improved.

Q: What are the advantages of 304 stainless steel piston rod

A: Stainless steel 304 is a material used in the production of piston rods. It is resistant to weak corrosive media such as air, steam, and water. Commonly used materials are 304, 316. The weldability, polishability, heat resistance, corrosion resistance, and corrosion resistance of these materials are relatively good. Through precision cold drawing, precision grinding,high precision polishing and other processes, the stainless steel piston rod manufactured by the All technical indicators meet and exceed national standards, so they are often used in oil cylinders,air cylinders,and shock absorbers.

Q: What is the rolling process of the stainless steel pneumatic cylinder piston rod?

A: The piston rod of the stainless steel pneumatic cylinder is processed by rolling. Because the surface layer has residual surface stress, it helps to close the surface micro cracks and hinder the expansion of corrosion.
Thereby improving the surface corrosion resistance, and can delay the generation or expansion of fatigue cracks, thereby improving the fatigue strength of the cylinder rod. Through roll forming, a cold work hardened layer is formed on the rolled surface, which reduces the elastic and plastic deformation of the contact surface of the grinding pair, thereby improving the wear resistance of the cylinder rod surface and avoiding burns caused by grinding. After rolling, the surface roughness value is reduced, which can improve the mating properties. At the same time, the friction damage to the sealing ring or the sealing element during the movement of the cylinder rod piston is reduced, and the overall service life of the pneumatic cylinder is improved.

Q: What are the characteristics of the stainless steel piston rod of the pneumatic cylinder?

A: Excellent corrosion resistance, good corrosion resistance in the production process of pulp and paper. Moreover, 304 stainless steel is also resistant to corrosion by the ocean and corrosive industrial atmosphere.
In the high temperature environment, 304 stainless steel has good oxidation resistance. Under high temperature conditions, when the concentration of sulfuric acid is lower than 15% and higher than 85%, 304 stainless steel has a wide range of uses.

We're professional forged bar manufacturers and suppliers in China, specialized in providing high quality custom service and OEM service. We warmly welcome you to buy high-grade forged bar in stock here from our factory.

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