Cross-Linked PE Heat Shrink Sleeve Production line for Pipeline Field Joint Coating

Developed and manufactured by Qingdao Huashida Machinery Co., Ltd. - a professional manufacturer with 20+ years of experience in pipeline field joint coating equipment and plastic extrusion machinery - this 750-800mm cross-linked PE heat shrink sleeve production line (Model 1000) is a fully automatic intelligent manufacturing system dedicated to producing high-performance pipeline joint anti-corrosion heat shrink sleeves and tapes. Integrating advanced PE substrate extrusion technology, professional electron beam irradiation crosslinking process, and precise online hot melt adhesive lamination coating technology, this multifunctional heat shrink sleeve production line independently manufactures standard two-layer PE heat shrinkable sleeves/tapes and upgraded three-layer fiberglass reinforced heat shrink sleeves in 750-800mm finished product width.

As core manufacturing equipment for field joint coating (FJC) and girth weld protection, this Model 1000 cross-linked PE sleeve production line provides one-stop anti-corrosion material production solutions for oil & gas transmission, district heating, municipal drainage, and industrial pipeline joint anti-corrosion projects - covering the full mid-range width spectrum that neither the 650mm (Model 800) nor 1100-1200mm (Model 1350) configurations serve.

This 750-800mm cross-linked PE heat shrink sleeve machine supports diversified product customization and mass production, covering full-spec pipeline field joint coating protective materials:

• Standard Products: 750-800mm width two-layer cross-linked PE heat shrinkable tape, conventional sleeve-type heat shrinkable sleeves, and clip-on heat shrinkable sleeves for general pipeline girth weld joint anti-corrosion - meeting ASTM D1000 peel strength >150N/cm standard
• Upgraded Products: High-strength three-layer fiberglass reinforced PE heat shrinkable tape and sleeves with enhanced tensile resistance (15-20MPa), impact resistance, and aging resistance - engineered for harsh underground pipeline field joint coating in oil & gas and district heating environments

• Oil & Gas Pipeline Field Joint Coating: Suitable for long-distance oil and gas transmission pipelines, 3PE/2PE anti-corrosion steel pipe girth weld joints and seamless steel pipe field joint coating - solving anti-corrosion and sealing protection problems at pipeline welding joints exposed to underground chemical media
• District Heating Pipeline Joint Sealing: Purpose-built 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 district heating pipeline joints
• Municipal & Drainage Pipeline Protection: 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 girth weld joints
• On-Site Maintenance & Repair: 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.

Heat shrinkable sleeve for Oil & Gas Pipe

Heat-shrinkable sleeve for Thermo Insulated Pipe

For metal reinforced HDPE corrugated pipe (drainpipe)

This complete 750-800mm heat shrink sleeve production line adopts modular integrated configuration - consisting of core extrusion system, adhesive coating system, fiberglass reinforced upgrade device, and PLC intelligent control system - realizing fully automated continuous field joint coating material production:

Complete Model 1000 Line Structure:

1. 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, high-quality PE backing film for 750-800mm cross-linked heat shrink sleeve production.

2. TJ-700 Adhesive Coating Line: Completes automatic online hot melt adhesive coating (DuPont/Sumitomo/Hanwha compatible), secondary stretching and shaping - guaranteeing uniform adhesive layer and >150N/cm peel strength bonding performance of finished pipeline field joint coating sleeves.

3. Fiberglass Reinforced Upgrade Configuration: Equipped with fiber unwinding, constant-temperature 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 fiberglass reinforced heat shrink sleeves with enhanced structural integrity for harsh underground pipeline conditions.

4. Auxiliary & Intelligent Control System: Complete supporting equipment including irradiation crosslinking device, circulating cooling system, precision haul-off unit, PLC electric control system, and ABB high-performance main motor - ensuring stable, adjustable, and efficient full-line heat shrink sleeve production 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

Main Equipment List (Standard Heat Shrinkable Tape Production Line)

Standard Three-Step Field Joint Coating Material Forming Process:

1. Substrate Extrusion: High-purity LDPE or HDPE raw materials are plasticized and extruded by high-output single-screw extruder to form uniform, flat, and smooth PE backing film at 150-200kg/h output - the foundation of every 750-800mm cross-linked heat shrink sleeve produced on this line.

2. Electron Beam Irradiation Crosslinking: The PE backing film undergoes professional electron beam irradiation crosslinking treatment - obtaining stable thermal shape memory effect, excellent tensile strength (15-20MPa), elongation at break ≥350%, aging resistance, and flame-retardant performance. This is the core process that distinguishes high-quality radiation cross-linked PE heat shrink sleeves from standard non-crosslinked alternatives in demanding pipeline field joint coating applications.

3. Online Lamination & Shaping: The cross-linked PE film is precisely secondarily stretched and bonded with imported DuPont/Sumitomo/Hanwha hot melt adhesive in real time - realizing integrated lamination and shaping with >150N/cm peel strength and stable shrinkage ratio meeting ASTM D1000 and DIN 30 672 international pipeline joint coating standards.

Three-Layer Fiberglass Reinforced Process:

Based on the standard three-step process, automatic fiberglass unwinding, constant-temperature heating, and precise leveling procedures are added realizing one-time continuous forming of three-layer fiberglass reinforced heat shrink sleeves in 750-800mm width. Finished products feature higher structural strength, stronger pressure resistance (≥100N/cm shear strength per DIN 30 672), and more stable shrinkage performance - suitable for ultra-harsh underground pipeline girth weld joint coating scenarios in oil & gas and district heating infrastructure.

• High Efficiency & Energy Saving: Innovative direct-connection single-screw extrusion technology with 150-200kg/h stable output, low energy consumption, and long service life - reducing per-unit pipeline field joint coating material production costs and maximizing manufacturer profit margins
• PLC + ABB Motor Intelligent Control: Industry-trusted PLC intelligent control system and ABB high-performance main motor - production speed adjustable and controllable; fully automatic operation greatly reduces manual intervention and labor costs in continuous heat shrink sleeve manufacturing
• Stable & Reliable Product Quality: Precision T-shaped molds and coat hanger-style flow channels, matched with high-precision mirror rollers and patented secondary stretching equipment - ensuring uniform 750-800mm substrate thickness, flat product surface, and ultra-low scrap rate across mass production runs
• One-Machine Multi-Use: Single Model 1000 line produces both standard two-layer cross-linked PE heat shrink sleeves/tapes and high-strength three-layer fiberglass reinforced products - eliminating redundant equipment investment and expanding product profit range for pipeline anti-corrosion material manufacturers
• DuPont/Sumitomo/Hanwha Premium Adhesive Compatible: Imported high-quality hot melt adhesive from global top brands ensures >150N/cm peel strength, stable long-term pipeline joint anti-corrosion performance, and low field failure rate
• Leading Patented Technology: Independent R&D three-layer one-pass molding technology reaching international advanced level - leading the pipeline field joint coating material manufacturing industry in equipment structure, crosslinking process, and finished sleeve performance

All finished 750-800mm radiation cross-linked heat shrink sleeves produced by this Model 1000 line fully comply with ASTM, DIN, and GB/T international standards:

• Tensile Strength: 15-20 MPa (Tested by ASTM D638)
• Elongation at Break: ≥ 350%
• Peel Strength to Steel/PE: > 150 N/cm (Tested by ASTM D1000)
• Shear Strength: ≥ 100 N/cm (Tested by DIN 30 672)
• Adhesive Softening Point: 70-80°C (Tested by ASTM E 28)
• Water Absorption Rate: ≤ 0.05% (Tested by ASTM D570), excellent waterproof and anti-corrosion performance

Qingdao Huashida Machinery Co., Ltd. is a professional high-tech manufacturer specializing in cross-linked PE heat shrink sleeve production lines, pipeline field joint coating equipment, full-set pipe anti-corrosion machinery, and plastic extrusion systems with 21 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 pipeline anti-corrosion project cases.

Our core products cover diversified pipeline anti-corrosion equipment and plastic machinery. Our cross-linked PE heat shrink sleeve production lines, including Model 800 (650mm), Model 1000 (750-800mm), and Model 1350 (1100-1200mm) configurations, have been exported to dozens of countries worldwide. We provide personalized customized field joint coating material production line solutions according to customers' required output, finished sleeve width, and pipeline application scenarios - helping customers build high-efficiency pipeline joint anti-corrosion material manufacturing workshops.

Payment Terms:

• 30% deposit within 2 working days after contract signing
• 67% before goods delivery
• 3% within 10 days after installation and commissioning completion

• Warranty Period: 12 months mechanical / 6 months electrical from equipment receipt date
• Free Services: Technical documents, electrical drawings, and on-site operator training
• Installation & Commissioning: Professional engineers dispatched for on-site guidance for this 750-800mm heat shrink sleeve production line
• Long-Term Support: Lifetime technical consultation, spare parts supply, and after-sales troubleshooting for pipeline field joint coating equipment

• Delivery Time: 90 days after deposit confirmation
• Packaging: Standard wrap film; wooden pallets or cartons available