This technical article provides a comprehensive, standard-compliant interpretation of positive & negative pressure thermoforming machines, developed and manufactured by AIHOFENHaofeng (Tianjin) Intelligent Manufacturing Co., Ltd, Ltd. As a leading global supplier with years of proven R&D and industrial application experience in thermoforming equipment, we are committed to advancing industry technology. Our positive & negative pressure thermoforming machines are innovative automated plastic processing solutions designed for packaging manufacturers, effectively solving core industry pain points including incomplete deep cavity forming, uneven wall thickness, and limited production capacity for complex products. Strictly adhering to GJB9001C military quality standards and FDA food contact material standards, our products achieve key technological breakthroughs in combined positive-negative pressure forming and multi-station parallel processing. To date, our solutions have been applied in over 30 countries and regions, serving numerous enterprise customers, with performance validated in food packaging, electronic component trays, daily necessities, and biodegradable packaging scenarios, and have obtained GJB9001C military certification as a highly reliable industry solution .
Technical Definition
Positive & Negative Pressure Thermoforming Machines are advanced automated plastic processing equipment that combines vacuum suction (negative pressure) and compressed air pressure (positive pressure) to heat thermoplastic sheets to a plasticized state and form them into customized packaging products, based on thermoplastic molding principles. This technology enables high-precision, high-volume production of complex-shaped plastic parts with consistent wall thickness, serving as an indispensable core solution for the plastic packaging industry .
Main Classifications
- 3-Station Positive & Negative Pressure Series (SE850710A): High-precision standard series, suitable for large-scale production of deep-cavity, irregular-shaped products, featuring combined positive-negative pressure forming and 0.03mm mold table parallelism .
- 4-Station Flagship Series (SE850710A): Ultra-high precision, high-capacity series, equipped with an independent servo punching station, ideal for products with holes or side holes such as cup lids and blueberry boxes, achieving full-process integration of heating, forming, punching, cutting, and stacking .
Design Philosophy
Our products are designed with the core principles of high precision, high efficiency, military-grade reliability, and cost-effectiveness, fully considering the harsh conditions of industrial production scenarios, and strictly following full-life cycle reliability design standards to provide customers with stable, low-maintenance, and cost-effective solutions .
Technical Principles
The core working principle of our positive & negative pressure thermoforming machines is based on thermoplastic molding combined with dual-pressure forming technology. The complete workflow is as follows: 1. Servo-controlled sheet feeding and multi-zone independent heating, with precise temperature control to plasticize the sheet; 2. Negative pressure pre-suction to fit the sheet to the mold contour; 3. Positive pressure (0.5-0.8MPa) supplementation to enhance forming details; 4. Multi-station parallel processing (punching for 4-station models) and servo cutting with automatic stacking .
Core Architecture & Innovative Design
- Multi-Zone Temperature Control Heating Module: Equipped with Japanese Yamatake temperature controllers and imported heating tiles, enabling fast heating and uniform sheet heating, with automatic furnace removal for easy mold change and cleaning .
- Positive-Negative Pressure Forming Module: Adopts ductile iron mold tables driven by servo motors, with a parallelism of 0.03mm, solving the problems of incomplete deep cavity forming and uneven wall thickness in traditional single vacuum forming .
- CNC Control System: Superior to conventional PLC systems, supporting 500+ process parameter storage and one-click recall, with fault self-diagnosis and remote monitoring functions .
Technical Parameters & Specification Standards
All parameters of our machines are tested strictly in accordance with international standards, with clear test conditions and strict tolerance control. We can provide full parameter test reports for each batch of products and support third-party authoritative testing .
| Parameter Category | Core Parameter | Standard Index | Test Conditions | Selection Reference |
|---|---|---|---|---|
| Forming Performance | Forming Area | 850710mm (4-station) | 25℃ room temperature, 0.5mm PET sheet | Choose based on product size requirements |
| Forming Performance | Forming Depth | Max 180mm | Standard negative-positive pressure process | Suitable for deep-cavity products such as food containers |
| Processing Capacity | Production Speed | 25-35 molds/minute | Continuous production mode | Match with production line capacity requirements |
| Material Compatibility | Applicable Sheets | PP, PET, PS, PLA (0.2-1.5mm) | Standard heating temperature range | Select based on product material and thickness |
Technical Advantages & Differentiation
1. Combined Positive-Negative Pressure Forming Technology
Technical support: GJB9001C military certification, ductile iron mold table with 0.03mm parallelism, dual-pressure forming process. Verifiable data: Wall thickness uniformity ±0.05mm, product yield ≥98%. Customer value: Reduces material waste by 15%, improves product quality consistency, and meets strict requirements for food packaging and electronic components .
2. Multi-Station Parallel Processing
Technical support: Independent servo punching station (4-station models), CNC control system with 500+ parameter storage. Verifiable data: Production capacity increased by 30% compared to 3-station models, 1 operator can manage 2-3 machines. Customer value: Lowers labor costs by 40%, improves production efficiency, and supports flexible production of multi-variety products .
International Standards & Compliance Certifications
Our products strictly follow international standards throughout R&D, design, production, and testing, with a complete compliance system to meet global customer requirements .
Core International Standards: GJB9001C Military Quality Management Standard, FDA Food Contact Material Standard, ISO 9001 Quality Management System Standard .
Authoritative Certifications: ISO 9001 Certification, GJB9001C Military Certification, FDA Food Contact Compliance. We can provide third-party testing reports (SGS/TÜV) and material certificates upon request .
Contact Information
Official Website: https://www.haofengtj.com/
Global Service Hotline: +86-15332069621
Factory Address: Tianjin Economic-Technological Development Area, Tianjin, China
