TG FLEX-7 Strand Wire Rope | Plastic-Injected Core

TG FLEX-7 Strand Wire Rope | Plastic-Injected Core

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TG FLEX-7 Strand Wire Rope | Plastic-Injected Core
  • TG FLEX-7 Strand Wire Rope | Plastic-Injected Core
  • TG FLEX-7 Strand Wire Rope | Plastic-Injected Core
  • TG FLEX-7 Strand Wire Rope | Plastic-Injected Core
  • TG FLEX-7 Strand Wire Rope | Plastic-Injected Core
  • TG FLEX-7 Strand Wire Rope | Plastic-Injected Core
TG FLEX-7 Strand Wire Rope | Plastic-Injected Core

TG FLEX-7 Strand Wire Rope | Plastic-Injected Core

TG FLEX-7 Strand Wire Rope – Plastic-Injected Core is a 7-strand wire rope construction, available in 7×K19S, 7×K26WS, 7×K31WS, 7×K36WS variants.

Purpose-designed for container cranes; also suitable for other crane types. 

TG FLEX-7 Strand Wire Rope | Plastic-Injected Core
Specifications

Diameter: 12–80 mm. Constructions: 7×K19S, 7×K26WS, 7×K31WS, 7×K36WS. Core: plastic-injected steel core (EPIWRC). Wire grade: 1770, 1960 or 2160 N/mm². Finish: bright or galvanized. Lay: right or left hand, regular or Lang's. Manufactured to EN 12385, ASTM A1023, YB/T 5359 and GB/T 8918. HS code 7312.10.
Packing & Delivery

Supplied on wooden or steel reels to 3,000 m, or cut to your required lengths. MOQ 1,000 m, negotiable. Packed for sea freight and shipped CIF. Lead time confirmed at quotation. Payment 30% deposit with balance before shipment.
Certification & Documentation

Manufactured under ISO 9001:2015, with ISO 14001, 45001 and 50001 management systems certified by CICC. CCS Works Approval held for marine rope, 10–80 mm. Every shipment ships with a mill certificate and test report. Additional documentation available on request.

Technical Specification

TG FLEX-7 weight and minimum breaking force by diameter
Diameter mm Weight — steel core kg/m Weight — plastic-injected kg/m MBF 1770 kN MBF 1960 kN MBF 2160 kN
120.6620.670106117129
140.9020.912144159176
161.1781.192188208229
181.4901.508238264290
201.8401.862294325359
222.2262.253356394434
242.6502.681423469516
263.1103.147497550606
283.6063.650576638703
304.1404.190661732807
324.7104.767752833918
345.3185.3818499401036
365.9626.03395210541162
386.6426.722106111751294
407.3607.448117513011434
428.1148.211129614351581
448.9069.012142215751735
469.7349.850155417211897
4810.59810.725169218742065
5011.50011.638183620342241
5212.43812.587198621992424
5614.42614.598230425512811
6016.56016.758264429283227
6418.84219.067300933323672
6821.27021.525339737614145
7223.84624.132380842174647
7626.57026.887424346985178
8029.44029.792470152065737

Scroll the table sideways to see all columns.

MBF = minimum breaking force at the stated wire tensile grade (N/mm²). Weights are nominal. Diameters outside 12–80 mm and non-standard grades are manufactured to order — request a quote.

About this construction

Why seven strands instead of six or eight?

Seven compacted strands sit closer to a true circle than six, giving a rounder rope with more even pressure distribution on the drum. It's a deliberate compromise between the abrasion resistance of 6-strand and the flexibility of 8-strand.
What makes it purpose-built for container cranes?

Quay cranes run millions of short, fast cycles under heavy load with multi-layer spooling. TG FLEX-7 combines a compacted outer surface, a rounder profile and a plastic-injected core to handle all three at once — abrasion, bending fatigue and internal wear.
Can I use it on other crane types?

Yes. It suits any high-cycle crane duty — RMG and RTG yard cranes, ship unloaders, overhead travelling cranes. Tell us the machine and duty cycle and we'll confirm it's the right choice.
How does it compare to 8×K26?

8×K26 is more flexible and better suited where sheaves are small. TG FLEX-7 gives a better balance of abrasion and fatigue resistance and a rounder cross-section, which is why it's the container-crane default.
A wide outdoor harbor scene with large blue and red gantry cranes, wind turbines, and calm water under a clear blue sky.

Applications

Engineered for the container terminal

Quay crane ropes work harder than almost anything in lifting — short cycles, heavy loads, constant multi-layer spooling, salt air. TG FLEX-7 puts seven compacted strands around a plastic-injected core to resist all four failure modes at once.
See construction guide
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Manufacturing

Drawn, stranded and closed in-house

Every rope starts as Baosteel or Shagang wire rod and runs through our own servo-driven drawing and planetary stranding machines. German Fosser lubricant is applied at closing, and each rope is tensile tested against its declared breaking force before it ships.
Factory & quality

Ordering

Cut, reeled and shipped to spec

Reels run to 3,000 m, with custom lengths cut to order. Every shipment carries a mill certificate and test report, packed for sea freight and shipped CIF from the Yangtze Delta.

MOQ 1,000 m, negotiable.
Export & logistics

Application & Selection Guides

Wire rope for container and port cranes: selection guide

Wire rope for container and port cranes: selection guide

Container terminals run more lifting cycles in a week than most cranes see in a year, and the rope is doing three difficult things at once. This guide covers what...

Tell us your specification and we'll quote it.

Request a Quote