Hengshan Technology | Two High-Performance Shock Absorber Piston Rods
2026-08-10
As the “backbone” of an automotive suspension system, the precision and reliability of the piston rod directly affect the vehicle’s ride smoothness and occupant safety. Today, we turn our attention to two other flagship products of the company: 20*420 milling threaded piston rod with threads at both ends and 12*181 M8*1.25 with holes Friction-welded piston rod 。
20*420 thread milling
In the assembly of the shock absorber’s upper and lower joints, the precision of the threads directly determines the tightness of the fastening. Hengshan Technology’s piston rod, in this model, … The machining of the threaded ends employs a specialized precision milling process. 。
Precise and resistant to stripping. Compared with conventional threaded screws, the threads formed by Hengshan’s milling process, The tooth profile is well-defined, the meshing is tight, and the precision is extremely high. . The direct result is increased engagement strength, even under repeated disassembly and assembly and severe vibration, Less likely to strip or slip. This phenomenon will be completely eliminated, thereby eradicating operational risks.
Even stress distribution, excellent sealing performance It is compatible with a wide range of hydraulic shock absorber models, including those for passenger cars and commercial vehicles, and its design ensures uniform stress distribution throughout the entire structure. Superior sealing guarantees stable transmission of damping pressure, effectively cushioning road vibrations and ensuring that the shock absorber assembly remains securely fastened without any looseness, thereby significantly enhancing ride smoothness and assembly durability.
Durability.
12*181 M8*1.25 with holes
In response to the demands of heavy-duty, high‑performance vehicle models, Hengshan Technology has launched this product, which incorporates advanced… Friction welding integrated forming process The piston rod’s core technology lies in its “seamless, high-strength” design.
Avoid potential cracking hazards. Friction welding technology enables the rod body and the end cap to achieve… Atomic-level fusion, seamless welding, bubble-free Compared with conventional welding, the tensile and torsional strengths are dramatically improved, effectively avoiding… Potential hazards of weld cracking and loosening , providing absolute safety assurance for vehicle operation under extreme road conditions.
Strong capabilities, quality as the foundation.
Micrometer-scale manufacturing ： The company is equipped with over 150 sets of precision machining equipment, with core process accuracy reaching the micrometer level, effectively ensuring high dimensional consistency across batch production.
Quality Control System ： The company has obtained automotive industry quality management system certification, established a full‑process quality traceability system, and maintains a consistently high first‑pass yield on its production lines.
Market Validation and Performance : The product is already being supplied in volume to major domestic shock absorber manufacturers. Market validation has demonstrated that, under comparable test conditions, the core product exhibits significantly improved yield strength and corrosion resistance compared with conventional processes.
Pioneering the piston rod industry to build a leading brand.
Previous page:
Real-time News
—
2026-09-14
Hensan Technology cordially invites you to discuss cooperation.
If you are interested in collaborating with us, please provide your contact information, and we will be delighted to serve you.
Henan Hensan Technology Co., Ltd.
Phone:
Email:
Address:
No. 105, Huayu Avenue, Crane Industrial Park, Changyuan City, Xinxiang, Henan Province
WeChat Official Account
Official Douyin