7x7 Steel Core Galvanized Steel Wire Rope
7x7 galvanized steel wire rope features a point contact type construction with 7 strands twisted together, each containing 7 steel wires of identical diameter. The galvanized surface coating provides enhanced corrosion resistance for demanding applications.
Technical Specifications
| Diameter (mm) |
GB/T 20118-2006 / GB 8918-2006 Min Breaking Load (KN) |
Approx. Weight KG/100M |
EN 12385-4 Min Breaking Load (KN) |
Approx. Weight KG/100M |
|
1770 N/MM² | 1960 N/MM² |
|
1770 N/MM² | 1960 N/MM² |
|
| 1.2 | 0.92 | 1.01 | 0.56 | 0.99 | 1.10 | 0.56 |
| 1.4 | 1.25 | 1.38 | 0.76 | 1.35 | 1.49 | 0.76 |
| 1.5 | 1.43 | 1.58 | 0.87 | 1.55 | 1.71 | 0.87 |
| 1.8 | 2.06 | 2.28 | 1.25 | 2.23 | 2.46 | 1.25 |
| 2.0 | 2.54 | 2.81 | 1.55 | 2.75 | 3.04 | 1.55 |
| 2.5 | 3.97 | 4.40 | 2.42 | 4.29 | 4.75 | 2.42 |
| 3.0 | 5.72 | 6.33 | 3.48 | 6.18 | 6.84 | 3.48 |
| 3.5 | 7.78 | 8.62 | 4.74 | 8.41 | 9.32 | 4.74 |
| 4.0 | 10.17 | 11.26 | 6.19 | 10.99 | 12.17 | 6.19 |
| 4.5 | 12.87 | 14.25 | 7.84 | 13.91 | 15.40 | 7.84 |
| 5.0 | 15.89 | 17.59 | 9.68 | 17.17 | 19.01 | 9.68 |
Product Features
- Structural Strength Balance: Consistent strand diameter and uniform twisting angle provide stable force distribution in pulling and twisting scenarios, ideal for frequent bending applications
- Strong Corrosion Resistance: Galvanized coating isolates steel from air and moisture, extending service life 3-5 times longer than smooth steel wire rope in harsh environments
- Moderate Flexibility: Smaller bending radius than 7x19 structure with stronger torsional resistance than 1x7 single strand rope, balancing operational ease and structural stability
- Outstanding Cost-Effectiveness: Mature production technology and high raw material utilization provide 40%-60% cost reduction compared to stainless steel wire rope for small to medium load scenarios
Structure Comparison
| Structure |
Wires |
Flexibility |
Torsional Resistance |
Applicable Scenarios |
| 7×7 | 49 Wires | Moderate | Stronger | Light load fixation, small-scale traction |
| 7×19 | 133 Wires | Better | Weaker | Frequent bending and dynamic traction |
| 1×19 | 19 Wires | Poor | The Strongest | Rigid cable, static load-bearing |
Applications
Common uses for 7×7 structure, 1.2-5.0mm diameter galvanized steel wire rope include:
- Construction Projects: Elevator speed limiter steel wire rope, building exterior wall hanging basket ropes, prestressed tensioning matching ropes
- Transportation: Trailer towing ropes, forklift lifting ropes, port small cargo bundling ropes
- Agriculture and Fisheries: Greenhouse skeleton ropes, fishing net fixing ropes, hanging ropes for aquaculture equipment
- Daily Civilian Use: Fitness equipment ropes, outdoor clotheslines, small lifting equipment matching ropes
Quality Certifications
Our steel wire rope meets international production standards and holds multiple certifications: