Jingxian County, Hebei Province, China — Hengshui Zhehan Rubber & Plastic Products Co., Ltd., a manufacturer of high-pressure rubber and plastic hose products since June 2018, has completed a workshop and production line optimization at its facility in the Zhanggehou Rubber & Plastic Base, Jingzhou Town. The upgrade is intended to increase production consistency, improve delivery capacity, and expand the company's ability to fulfill custom high-pressure braided hose orders for domestic and international buyers.

Manufacturing Process: From Wire Braiding to Finished Hose

The company's production facility operates multiple automated wire braiding and spiral winding machines. The manufacturing process is completed in-house and covers the full production cycle:

• Raw material inspection — incoming rubber compounds, steel wire, and reinforcing materials are checked for tensile strength, diameter, and surface condition before entering production.
• Inner tube extrusion — rubber compound is extruded into the inner tube, which serves as the fluid-contact layer and is formulated for compatibility with hydraulic oil, water-oil emulsions, and other specified media.
• Wire braiding or spiral winding — high-tensile steel wire is applied over the inner tube using automated braiding machines. Braid angle, wire tension, and layer count are controlled according to the hose's pressure rating and intended application.
• Outer cover extrusion — a weather-resistant and abrasion-resistant rubber cover is applied to protect the reinforcement from external damage.
• Vulcanization — the assembled hose is vulcanized to bond the tube, reinforcement, and cover into a single composite structure.
• Pressure testing and dimensional inspection — every production batch undergoes 100% pressure testing at 1.5 times the rated working pressure, along with length, diameter, and visual inspection.
• Coiling and packaging — automated coiling equipment controls hose length and prepares finished rolls for storage or shipment.

The facility currently operates 6 production lines and employs over 120 people, including 18 engineering and quality-control technicians. The company has produced hydraulic and industrial hoses for over eight years.

Quality Control System

Hengshui Zhehan maintains a documented quality management system covering raw material procurement, production processing, and finished product inspection. Key control points include:

• Incoming material inspection — rubber compounds are tested for Mooney viscosity and cure characteristics; steel wire is checked for tensile strength and coating adhesion.
• In-process monitoring — braid angle, wire tension, and extrusion dimensions are checked at defined intervals during production.
• Final product testing — each batch is pressure-tested at 1.5× rated working pressure. Additional tests such as impulse cycling, oil immersion, and low-temperature flexibility can be performed based on customer requirements or applicable standards.
• Traceability — batch-level test records are retained and can be provided to qualified buyers on request.

The company produces hoses in accordance with relevant industry standards, including EN 853, SAE J517, and ISO 6803 test methodologies, depending on the product type and customer specification.

Product Range and Customization

The company's high-pressure braided hydraulic hose products are available in the following configurations:

Customization options include non-standard diameters, pressure ratings, cut lengths, cover colors, brand printing, and matched crimped fittings. Engineering drawings and application parameters are reviewed by the technical team before production.

Applications

The company's high-pressure braided hydraulic hoses are used in:

• Construction machinery — excavators, wheel loaders, cranes, concrete pump trucks
• Mining and metallurgical equipment — hydraulic roof supports, roadheaders, rolling mill systems
• Oil and gas operations — drilling rigs, hydraulic power units, wellhead control systems
• Agricultural machinery — combine harvesters, high-clearance sprayers, agricultural loaders
• General industrial fluid transfer — injection molding machines, conveyor hydraulic drives, hydraulic test benches

Export Supply and Order Fulfillment

Hengshui Zhehan has experience supplying overseas buyers and can produce hoses to international standards. Export support includes:

• Custom packaging and labeling for sea freight
• Batch-level test reports and dimensional inspection records
• Sample evaluation before bulk orders (standard samples provided free of charge; customer covers freight)
• Technical consultation on hose selection, fitting compatibility, and installation
• Coordination with freight forwarders or consolidation warehouses in China

Order lead time depends on whether the product is a stock item or custom-manufactured. Standard in-stock hoses can be dispatched within a few days after order confirmation. Custom production schedules are confirmed during order negotiation.

Manufacturer Profile

Hengshui Zhehan Rubber & Plastic Products Co., Ltd.

• Established: June 2018
• Location: Zhanggehou Rubber & Plastic Base, Jingzhou Town, Jingxian County, Hengshui City, Hebei Province, China
• Registered capital: 5 million RMB
• Employees: 120+
• Engineering and QC staff: 18
• Production lines: 6
• Core products: High and low pressure hoses, steel wire braided/wound hoses, ultra-high pressure hoses, hydraulic hoses, seals, waterstops, bridge bearings, nylon resin tubes, silicone products, and supporting fittings
• Quality system: Documented control from raw material procurement through finished product inspection
• Logistics: Near Beijing-Fuzhou Expressway, Beijing-Shanghai Railway, and Shijiazhuang-Dezhou Railwa