High-Performance Rod for Reliable Compressor Parts and Fast Operations

• Customization: Available
• Customized: Customized
• Standard Component: Non-Standard Component
• Model NO.: 4HHE-VG-E
• Material: 20cr13\30cr13\17-4pH\42cr
• Category: Motor
• Hardness: HRC25~32
• Hardnessmax: HRC≥62
• Inspection Method: Ultrasonic Testing
• Transport Package: Wooden Crate
• Specification: 30mm*55mm*615mm
• Trademark: WF
• Origin: China
• HS Code: 8414909090
• Production Capacity: 30000PS/Year

Product Description

The piston rod stands as a crucial connecting element, seamlessly supporting the piston in its dynamic work environment. Predominantly integrated within oil and cylinder motion systems, it embodies a component that is both frequently in motion and demands high technical precision. The caliber of piston rod processing is instrumental, directly influencing the longevity and dependability of the entire mechanism. With stringent processing criteria, including a surface roughness of Ra0.4-0.8 μ m, the piston rod demands exacting standards of coaxiality and wear resistance, ensuring unwavering performance.

At the heart of its function, the piston rod serves as the vital link between the piston and the crosshead. It is tasked with transmitting the force exerted upon the piston, thereby driving its movement with precision and reliability.
Essential standards and specifications for piston rods include:
(1) Ensure robust strength, stiffness, and stability to withstand demanding conditions;
(2) Exceptional wear resistance with stringent demands on machining precision and surface smoothness;
(3) Strategically designed to minimize the impact of stress concentrations on its structure;
(4) Guarantee secure connections to prevent any loosening over time;
(5) Thoughtful piston rod design to facilitate easy disassembly and reassembly, enhancing maintenance efficiency.

Wenzhou Jianqing Industrial Company Nestled strategically in the south Zhejiang Marine Economic Development Zone (Oujiang Estuary), our location is a beacon of national recognition, fostering a state-of-the-art industrial ecosystem.
With a legacy of unparalleled excellence since 1977, our illustrious history unfolds over three transformative growth phases: Phase 1 (1976-1990), Phase 2 (1992-2002), and Phase 3 (2002-2023). This journey began in 1976, as visionary founder Chen Jianqing, along with his determined colleagues, embarked on a mission to produce superior quality valves. Despite initial hurdles, they successfully delivered their debut valve batch under challenging processing conditions, securing a strong financial foothold for the company. By 1977, driven by an unyielding quest for excellence, they aligned with the Longwan school office, founding the pioneering Wenzhou Tianlong Petrochemical Machinery Factory, specializing in sealing rings. The early years presented obstacles of a simplistic product framework and underdeveloped technical skills, yet the founders exhibited remarkable resilience, creatively overcoming production and sales challenges with tenacity and resourcefulness.
By 1979, fueled by an ambitious vision for growth, the company expanded its product range beyond initial sealing components, venturing into air valves, packing parts, pistons, piston rods, connecting rods, and bearing bushings. In 1984, the enterprise proudly transitioned into the private sector, becoming the Wenzhou Air Compressor Valve Factory, and achieved the distinction of being Wenzhou's inaugural manufacturer dedicated to compressor components.
In 1990, our innovative products earned widespread market recognition, propelling us into the esteemed circle of designated production enterprises under the Petrochemical Industry Bureau (formerly the Ministry of Chemical Industry). We earned the privilege of joining China National Gas Corporation's refining and chemical spare parts network, and became integral to the spare parts resource market of China Petrochemical.
The strategic shareholding reform in 1992 catalyzed our rebranding to Wenzhou Jianqing Industrial Company, marking a significant shift in our organizational journey.
As the new millennium dawned, we embraced a culture of relentless innovation, advancing from import imitation to pioneering independent design and research and development. Through progressive strides, we have firmly established our leadership within the industry.
Introduction to our diverse product categories: Jianqing Industrial proudly offers core products featuring three major categories of wear-resistant components: air valves, piston ring support rings, and packing rings, alongside gas regulators (actuators) and check valves. Our design philosophy has seen profound evolution, particularly noticeable in our air valves, which have progressed from initial metal mesh concepts to a rich variety of structural types, including ring inclined, mushroom, and infinity valves.
Our vast and diverse clientele spans an expansive array of Chinese provinces, 29cef8ca