Positive Negative Pressure Thermoforming Machines AIHOFENs Technical Solutions for Global Buyers

This technical article provides a comprehensive standard-compliant interpretation of positive and negative pressure thermoforming machines developed by Haofeng (Tianjin) Intelligent Manufacturing Co., Ltd. As a leading supplier in the thermoforming equipment sector, we focus on delivering high-precision, high-capacity solutions for global packaging manufacturers. These machines are designed to address core industry pain points such as insufficient deep cavity forming, uneven wall thickness, and low precision for hole-containing products. Our products strictly adhere to GJB9001C military quality standards, with key technological breakthroughs in positive-negative pressure composite forming and multi-station parallel processing. They have been widely applied in food packaging, daily-use electronics packaging, and degradable packaging scenarios, and are recognized as reliable technical solutions with military-grade manufacturing quality .

Technical Definition

Positive and negative pressure thermoforming machines are fully automatic thermoforming equipment that adopt combined positive and negative pressure forming processes. Based on the principle of plastic sheet thermoplasticization, they enable mass production of high-precision, complex-structured blister products. As core equipment in the packaging manufacturing sector, they have become indispensable technical support for efficient and high-quality packaging production .

Main Classifications

To meet diverse industry needs, our product line includes two mainstream models: SE850710A 4-Station Positive-Negative Pressure Thermoforming Machine: A flagship model with independent punching station, suitable for hole-containing products like cup lids and blueberry boxes, featuring ultra-high precision and large capacity ; SE850710A 3-Station Positive-Negative Pressure Thermoforming Machine: A high-stability model for deep cavity and irregular products, offering high adaptability and fast mold change .

Design Philosophy

Our machines are designed with core concepts of high precision, high reliability, full-process integration, and military-grade quality. They fully consider the harsh conditions of industrial scenarios, strictly follow full-life-cycle reliability design standards, and provide customers with stable, low-maintenance, cost-effective technical solutions .

Technical Principle

The core working principle of positive and negative pressure thermoforming machines is based on plastic sheet thermoplasticization combined with pressure-assisted forming. The complete workflow is as follows: 1. Servo feeding and multi-zone independent temperature control heating: Sheets are accurately heated to plasticized state using upper and lower infrared heating tiles ; 2. Negative pressure pre-suction: Sheets are attached to the mold contour via vacuum suction ; 3. Positive pressure supplement: 0.5-0.8MPa positive pressure is applied to enhance forming, ensuring full details of deep cavities and edges ; 4. Multi-station parallel processing: Independent stations complete punching, cutting, and stacking processes simultaneously .

Core Architecture and Innovative Design

Key innovative modules include: Multi-zone temperature control heating module: Equipped with upper and lower infrared heating tiles, it enables fast heating and uniform sheet heating, with the furnace capable of automatic removal for easy mold change ; Positive-negative pressure forming module: Adopts ductile iron mold table with 0.03mm parallelism, driven by servo motor to ensure stable and precise forming ; Independent punching module (4-station exclusive): Offers ±0.05mm precision, supporting various hole types for special packaging needs .

Technical Advantages and Differentiation

1. Positive-Negative Pressure Composite Forming Technology: Supported by GJB9001C military quality certification, the ductile iron mold table maintains 0.03mm parallelism. This technology solves the problem of insufficient deep cavity forming, ensuring uniform wall thickness and stable product weight, thus improving yield ; 2. Multi-Station Independent Parallel Processing: 4-station models separate heating, forming, punching, cutting and stacking processes, enabling simultaneous operation to increase production capacity, especially suitable for hole-containing packaging products .

Application Scenarios

1. Food Packaging Industry: Core needs include hole-containing products like breathable meal boxes and blueberry boxes. The recommended solution is SE850710A 4-Station Positive-Negative Pressure Thermoforming Machine, which provides ±0.05mm punching precision and meets the requirements of food packaging production ; 2. Daily-Use Electronics Industry: Core needs include high-precision inner trays for cosmetics and electronic components. The recommended solution is SE850710A 3-Station Positive-Negative Pressure Thermoforming Machine, which ensures uniform wall thickness and precise product details ; 3. Degradable Packaging Industry: Core needs include forming PLA/PBAT degradable products. All our models are compatible with degradable materials, supporting the production of eco-friendly packaging .

Technical FAQ

Q: What materials can your positive & negative pressure thermoforming machines process? A: Our machines are compatible with PP, PET, PS, PLA and other thermoplastic sheets, meeting the needs of various packaging scenarios . Q: What is the precision of the mold table? A: Our machines adopt ductile iron mold tables with a parallelism of 0.03mm, ensuring stable and precise forming . Q: Can your machines produce hole-containing products? A: Our 4-station models are equipped with independent servo punching stations, capable of producing products with round, rectangular, irregular and side holes with ±0.05mm precision .

Contact Information

Official Website: https://www.haofengtj.com/