The Chrome-Plated Core Your Hydraulic Cylinders Deserve

2025-12-06

When a hydraulic system fails, 73 % of the time the root cause is the Piston Rod. Jinyo eliminates that risk with ISO/CE/RoHS-certified hard-Chrome Rods engineered for South-American sugar mills, Middle-East oil rigs, and European OEM lines alike. One-ton MOQ, global delivery, tolerances down to ±0.01 mm—specify once, trust forever.

Why Buyers Choose Jinyo Piston Rods

Hardness 55–62 HRC resists scoring under 400 bar spikes. Straightness ≤ 0.3 mm/m keeps seals from early blow-by. Chrome layer 20–30 µm survives 720 h salt-spray—perfect for offshore humidity. Every rod is ultrasonic-tested and shipped with a mill certificate so your QA team can sign off in minutes, not days.

Quick Answers: What Procurement Teams Ask First

MOQ & Lead Time

• MOQ: 1 metric ton (≈ 60–80 rods depending on Ø)

• Standard lead time: 7–10 days ex-works Qingdao

• Express option: 3 days with air freight surcharge

Precision Specs

• Diameter tolerance: h7–h9 (Ø 25–200 mm)

• Surface roughness: Ra ≤ 0.2 µm after chrome

• Straightness: ≤ 0.3 mm/m, camber ≤ 0.1 mm/m

Market Region	Typical Delivery (days)	Incoterm
South America	25–30	FOB Santos / CFR Buenaventura
Middle East	20–25	CIF Jebel Ali
Southeast Asia	7–12	DDP Bangkok / Jakarta
Europe	18–22	DAP Hamburg / Rotterdam

Certifications & Compliance

• ISO 9001:2015 – quality management • CE 2006/42/EC – machinery safety • RoHS 2011/65/EU – hazardous-substance control Full material traceability from steel mill to chrome bath, ready for third-party audits.