Stainless Steel Lifting Eye Bolts are forged from 304 or 316 stainless steel, possessing good strength and toughness. The surface is often passivated or polished to enhance corrosion resistance and surface finish. The product strictly adheres to international standards such as DIN 580 and ISO 3266.
Product Parameters
|
Material and Grade |
A2-70 (304) or A4-80 (316) |
|
Tensile strength |
≥700 MPa or ≥800 MPa |
|
Safe Working Load (SWL) |
0.1 tons to 6.5 tons or higher (safety factor is typically 4:1) |
|
Nominal thread diameter |
M8, M10, M12, M16, M20, M24, M30, etc. |
|
Surface treatment |
Passivation treatment (standard) or bright polishing (optional) |
|
Implementation standards |
DIN 580 or ISO 3266 |
Structural Design
Integral Forging Process
The Stainless Steel Lifting Eye Bolt is manufactured using an integral die forging process, ensuring the lifting ring and threaded rod are a single unit, eliminating weak points from welding and preventing the risk of weld fracture.
Lifting Ring Geometric Optimization
The inner side of the lifting ring features a large radius smooth transition design to avoid stress concentration; the ring body cross-section is typically circular or a modified D-shape, ensuring even load distribution.
Permanent Safety Marking
The product body must be permanently marked with its safe working load (SWL), material grade, and production batch number via laser or steel stamping, ensuring on-site identification and traceability to prevent misuse.
Application Areas
Food and Beverage and Pharmaceutical Industries
Lifting and securing of production line equipment, fermentation tanks, and mixing vessels.
Chemical and Marine Engineering
Permanent lifting points for offshore platform equipment, chemical plant reactors, and internal ship facilities.
High-End Equipment and Laboratories
Installation and maintenance lifting points for precision instruments, medical equipment, and semiconductor manufacturing equipment.
Outdoor Construction and Public Facilities
Suspension systems for seaside building curtain walls, swimming pool equipment, and permanent exhibition installations.
Company environment
FAQ
Q: What are the special requirements for packaging and labeling in international trade?
A: Individual packaging using anti-rust paper/vacuum bags is required to prevent scratches and cross-contamination. The outer carton must clearly indicate the material (e.g., A4-80), specifications, SWL (Safe Working Load), and the words "stainless steel."
Q: What special precautions should be taken during installation?
A: Ensure that the bolts are fully screwed into the corresponding base (such as equipment lifting lugs) until they are flush, and secured with matching stainless steel nuts and flat washers. It is recommended to use a torque wrench to tighten to the recommended value to avoid failure due to insufficient or excessive tightening.
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