Corporate Profile

TJ Steel Rope is the export identity of Jiangsu Tongjiang New Materials Technology Co., Ltd., a wire rope manufacturer headquartered in Nantong, Jiangsu Province, China. The company has manufactured steel wire rope since 1987 and was restructured under its current legal name, Tongjiang New Materials Technology Co., Ltd., in 2017. As of 2026, Tongjiang employs approximately 80 staff across its manufacturing, technical, and sales teams at its 33,536-square-meter production facility at No. 99 Tongda Road in the Nantong Economic & Technological Development Zone.

Tongjiang manufactures individual wire rope constructions and custom production runs covering the full range of steel wire rope types, from general-purpose 6- and 8-strand line-contact rope through compacted-strand, rotation-resistant, and non-rotating constructions, to specialized mining and API-standard oil-drilling rope. Equipment is supplied to construction machinery OEMs, port and terminal operators, offshore and marine contractors, oil and gas operators, mining companies, and machinery distributors in markets across Southeast Asia, the Middle East, North America, and Australia, alongside more than twenty provinces within China.

Company Details at a Glance

Manufacturing Capability

Tongjiang's Nantong facility occupies 33,536 square meters and houses the complete production sequence for the company's product range (wire drawing, strand twisting, and rope closing) across 65 major pieces of production equipment. The company maintains an independent R&D division with in-house experimental and testing facilities, including proprietary torque and rotation testing equipment and a dedicated fatigue-qualification procedure for crane wire rope.

The facility sits in Nantong, a national coastal development city on the Yangtze River, positioned south of the Sutong Yangtze River Bridge and close to both Nantong Airport and the Xinchang Railway. That combination of water, land, and air access has earned the region the nickname "Northern Shanghai" and gives overseas buyers convenient routes for factory visits and outbound container shipment.

Every rope Tongjiang produces undergoes tensile testing to confirm compliance with its declared minimum guaranteed breaking force before shipment, and lifting or rotation-resistant products go through a formal torque/rotation verification procedure on the company's own testing equipment. For standard product-line orders, Tongjiang draws on roughly 4,000 tons of finished-goods inventory maintained year-round, which supports faster dispatch on catalog constructions and diameters. Custom and OEM orders (non-standard constructions, diameters, core types, coatings, or buyer-specified length and marking) are scheduled according to configuration scope and the factory's production load at the time of order confirmation.

Business Scope

Tongjiang's commercial offering covers four areas:

Wire rope products and custom production. The product range includes galvanized, bright (ungalvanized), compacted-strand, steel-core, fiber-core, parallel-lay, and Euro-standard wire rope, in constructions from 4-strand through 6-, 7-, 8-, 18-, 19-, 24-, and 35-strand geometries, at diameters from 6mm to 80mm and minimum breaking grades of 1770, 1960, and 2160. Individual constructions are available for integration into existing equipment, and custom runs are available for OEM and project supply. See Browse All Wire Rope Products for the full catalogue.

OEM and custom manufacturing. Tongjiang manufactures to non-standard specifications, including custom construction, diameter, core type, surface coating, lay type and direction, length, and marking. Guy wire and other application-specific rope can be manufactured directly from buyer-supplied engineering drawings.

Technical advisory and order support. Tongjiang evaluates rope selection across strength, rotation resistance, fatigue resistance, wear and friction resistance, and corrosion resistance, and can supply fatigue test data to help buyers choose the right construction for demanding applications. A structured technical intake is completed before production begins on every order. It covers application, length and tolerance, diameter, construction, grade, core type, coating, lay type and direction, minimum breaking force, end-finish, packaging, marking, and any third-party certification requirement.

Industry and OEM collaboration. Since 2022, Tongjiang has supplied wire rope directly to three of China's largest heavy-equipment manufacturers (Sany Heavy Industry, Zoomlion, and XCMG) for construction machinery, port, mining, offshore, oil and gas, and metallurgical applications. A documented example is the Sany SR265 rotary drilling rig project at Suzhou North Station, where 2,120 meters of TG32mm 916 EPIWRC 1960 rope was installed across 38 pile foundations over a 27-day program, with no issues reported. See Case Studies for further examples.

Quality and After-Sales Framework

Tongjiang's management systems are certified to ISO 9001:2015 (Quality), ISO 14001:2015 (Environmental), and ISO 45001:2018 (Occupational Health & Safety), with GB/T equivalents also held, alongside CE marking and CCS (China Classification Society) marine approval. Products are manufactured to EN 12385, ASTM A1023, YB/T 5972, and GB/T 8918. This combination of certifications is a relevant credential for buyers in institutional procurement, government-linked infrastructure projects, and marine or offshore operations that require documented quality-system compliance and classification society sign-off.

Shipments can be accompanied by mill certificates, product quality certification documents, and third-party test or inspection reports where required by the buyer. Technical data sheets and minimum breaking force / Working Load Limit tables are available for every construction to support engineering integration and compliance documentation on the buyer's side.

Export Markets and Regional Focus

Southeast Asia: construction machinery, port, and marine/offshore lifting applications are Tongjiang's primary use cases in this region, matching the area's port infrastructure and heavy-equipment demand.

Middle East: oil and gas and offshore platform applications are the primary focus, alongside port and construction machinery demand, supported by API RP 9A-compliant drilling rope and CCS-approved marine product.

North America: mining, construction machinery, and oil and gas are the primary applications, served by Tongjiang's shovel, dragline, and API-standard drilling rope lines.

Australia: mining is the dominant application. Electric shovel, dragline, and bucket-wheel excavator rope cover large-scale surface mining operations.

Domestically, Tongjiang's rope is sold across more than twenty provinces in China.

Distributor and Partner Programme

Tongjiang works with distributors, trading companies, and agents in its priority export regions (Southeast Asia, the Middle East, North America, and Australia), where a local partner can provide the market reach, language capability, and after-sales proximity that direct export from Nantong cannot fully replicate on its own. For enquiries about distribution or agency arrangements in your market, see Distributor Program or contact our sales team via the Contact page.

Frequently Asked Questions

Is TJ Steel Rope a manufacturer or a trading company?

TJ Steel Rope is the export identity of Jiangsu Tongjiang New Materials Technology Co., Ltd., a wire rope manufacturer based in Nantong, Jiangsu, China, operating its own 33,536-square-meter production facility. Tongjiang manufactures every rope in-house, from wire drawing and strand twisting through rope closing, across 65 major pieces of production equipment, supported by an independent R&D division with in-house testing and fatigue-qualification capability. The company does not resell third-party manufactured rope. Buyers evaluating significant or OEM orders can arrange a factory visit through our sales team to confirm manufacturing capability directly.

Where is TJ Steel Rope's factory, and can overseas buyers visit?

Tongjiang's facility is located at No. 99 Tongda Road in the Nantong Economic & Technological Development Zone, Jiangsu Province, a coastal city on the Yangtze River close to the Sutong Yangtze River Bridge, Nantong Airport, and the Xinchang Railway. That gives overseas visitors convenient road, rail, and air access to the region. Factory visits can be arranged for buyers evaluating production orders or assessing manufacturing capability. Contact our sales team to confirm an itinerary.

What payment terms and trade terms does TJ Steel Rope accept?

Tongjiang's standard payment structure is 30% deposit by telegraphic transfer (T/T) with the balance due before shipment; some destination countries require a 70% deposit with the balance paid before shipment. CIF (Cost, Insurance, and Freight to destination port) is Tongjiang's standard trade term, with other Incoterms available by agreement. Buyers with specific procurement requirements, for example government-funded or institutional projects with defined payment structures, should confirm compatibility with our sales team before submitting a formal order.

Does TJ Steel Rope offer OEM or custom-specification manufacturing?

Yes. Tongjiang accepts orders to non-standard specifications, including custom construction, diameter, core type (fiber, steel, or plastic-impregnated steel core), surface coating, lay type and direction, length, and marking. Products follow a structured naming convention, for example TG 40mm 6x36WS IWRC 1770 U sZ, which encodes diameter, construction, core type, minimum breaking grade, finish, and lay direction so buyers can specify exact requirements without ambiguity. Guy wire and other application-specific rope can also be manufactured directly from buyer-supplied engineering drawings.

How does TJ Steel Rope support buyers with rope selection and technical questions?

Tongjiang evaluates wire rope selection across strength, rotation resistance, fatigue resistance, wear and friction resistance, corrosion resistance, and expected wire rope extension, and tests lifting and rotation-resistant products on its own torque/rotation testing equipment as part of a formal verification procedure. Fatigue test data is available to help buyers make an informed construction choice for demanding applications. When placing an order, buyers are guided through a structured technical checklist covering application, length and tolerance, diameter, construction, grade, core type, coating, lay type and direction, minimum breaking force, end-finish, packaging, marking, and any third-party certification requirement such as LR, DNV, or ABS. This ensures the rope supplied matches the operating conditions it will face.