Radiation Cross-Linked PE Heat Shrink Sleeve Production Line for anti-corrosion pipeline Joints

Developed and manufactured by Qingdao Huashida Machinery Co., Ltd., a professional manufacturer with 20+ years of experience in plastic extrusion machinery and pipeline anti-corrosion equipment, this radiation cross linked PE heat shrink sleeve production line is a fully automatic intelligent manufacturing system dedicated to producing high-performance pipeline joint anti-corrosion heat shrinkable sleeves and tapes.

Integrating advanced plastic extrusion technology, professional irradiation crosslinking process and precise online lamination coating technology, this multifunctional production line independently manufactures standard 2-layer PE heat shrinkable sleeves/tapes and upgraded 3-layer fiberglass reinforced heat shrinkable sleeves.

As core equipment for field joint coating (FJC) and girth weld protection, it provides one-stop anti-corrosion material production solutions for oil & gas transmission, district heating, municipal drainage and industrial pipeline repair projects.

This cross-linked HDPE heat shrinkable sleeve manufacturing machine supports diversified product customization and mass production, covering full-spec pipeline anti-corrosion protective materials:

• Standard Products: 650mm width two-layer PE heat shrinkable tape, conventional sleeve-type heat shrinkable sleeves, clip-on heat shrinkable sleeves for general pipeline joint anti-corrosion.
• Upgraded Products: High-strength three-layer fiberglass reinforced PE heat shrinkable tape and sleeves, with enhanced tensile resistance, impact resistance and aging resistance for harsh working condition pipelines.

The radiation cross linked PE heat shrink sleeve produced by this production line features stable shrinkage performance, ultra-strong bonding force and excellent anti-corrosion ability, widely applicable to multiple pipeline systems and field construction scenarios:

• Oil & Gas: Suitable for long-distance oil and gas transmission pipelines, 3PE/2PE anti-corrosion steel pipes and seamless steel pipes, solving anti-corrosion and sealing protection problems of pipeline girth weld joints.
• District Heating: Perfect for joint sealing and anti-corrosion of polyurethane (PU) foam pre-insulated pipelines, including black and yellow jacket thermal insulation pipes, ensuring long-term stable heat preservation and anti-corrosion performance of heating pipeline joints.
• Municipal & Drainage: Compatible with hollow wall spiral wound pipes, steel-reinforced spiral corrugated pipes, plastic-steel spiral wound pipes and PVC-U sewage pipes, providing waterproof and anti-corrosion protection for municipal drainage pipeline joints.
• Maintenance: Ideal for on-site damage repair, gap sealing and field joint coating of various buried pipelines, effectively extending the overall service life of pipeline engineering.

This complete heat shrink sleeve production line adopts modular integrated configuration, consisting of core extrusion system, adhesive coating system, reinforced upgrading device and intelligent control system, realizing fully automated continuous production:

• RS-800 PE Backing Extrusion Line: With a stable output of 150-200kg/h, specially used for high-purity LDPE/HDPE substrate extrusion and forming, ensuring uniform and high-quality PE backing film for heat shrink sleeves.
• TJ-700 Adhesive Coating Line: Completes automatic online hot melt adhesive coating, secondary stretching and shaping, guaranteeing uniform adhesive layer and high bonding performance of finished sleeves.
• Fiberglass Reinforced Upgrade Configuration: Equipped with fiber unwinding, heating and leveling equipment, matched with 65/30 single-screw extruder and professional T-shaped flat-head die, supporting production of high-strength three-layer reinforced heat shrink products.
• Auxiliary & Intelligent Control System: Complete supporting equipment including irradiation crosslinking device, circulating cooling system, precision haul-off unit, PLC electric control system and ABB main motor, ensuring stable and efficient full-line operation.

• Working Place: Indoor non-hazardous production workshop
• Power Supply: 380V 50HZ (-10%, +5%)
• Working Humidity: ≤85%, no condensation
• Circulating Cooling Water: ~0.5m³/min (≤20ºC, 0.3Mpa)
• Compressed Air: ~0.4m³/min, working pressure >0.5Mpa

• Substrate Extrusion: High-purity Low-Density Polyethylene (LDPE) or HDPE raw materials are plasticized and extruded by high-output single-screw extruder to form uniform, flat and smooth PE backing film.
• Irradiation Crosslinking: The PE backing film undergoes professional electron-beam irradiation crosslinking treatment, obtaining stable thermal shape memory effect, excellent tensile strength, aging resistance and flame-retardant performance, which is the core process of high-quality radiation cross linked PE heat shrink sleeve.
• Online Lamination & Shaping: The cross-linked PE film is precisely secondarily stretched, and bonded with imported high-performance hot-melt adhesive in real time, realizing integrated lamination and shaping, with ultra-high peel strength and stable shrinkage ratio.

Based on the standard production process, add automatic fiberglass unwinding, constant-temperature heating and precise leveling procedures to realize one-time continuous forming of three-layer fiber-reinforced heat shrink sleeves. The finished products feature higher structural strength, stronger pressure resistance and more stable shrinkage performance, suitable for ultra-harsh underground pipeline anti-corrosion scenarios.

Qingdao Huashida Machinery Co., Ltd. is a professional high-tech manufacturer focusing on heat shrinkable sleeve production lines, full-set pipe anti-corrosion equipment and plastic extrusion machinery, with more than 20 years of industrial R&D and manufacturing experience. The company owns 9 senior professional engineers and a national high-end plastic machinery expert workstation, with 389 successful global engineering project cases.

Our core products cover diversified pipeline anti-corrosion equipment and plastic machinery, and our cross-linked PE heat shrink sleeve production lines have been exported to dozens of countries and regions around the world. We provide personalized customized production solutions according to customers' required output, product specifications and pipeline application scenarios, helping customers build high-efficiency pipeline anti-corrosion material production workshops.

• 30% of the contract amount as a deposit within 2 working days after contract signing
• 67% of the contract amount before goods delivery
• 3% of the contract amount within 10 days after finishing installation and commissioning

• Warranty Period: 12 months for mechanical parts, 6 months for electrical parts from the date of equipment receipt
• Free Services: Free technical documents, electrical drawings, and on-site operator training
• Installation & Commissioning: Professional technicians dispatched for on-site guidance; buyer covers round-trip tickets, accommodation, transportation, insurance, and USD 150 per person per day allowance
• Long-term Support: Lifetime technical consultation, spare parts supply, and after-sales troubleshooting

Delivery Time: Production and delivery are completed within 90 days after receiving the deposit

Packaging & Shipping: Standard packaging with wrap film; wooden pallets or cartons are available at the buyer's cost