Product Overview

The Vacuum Pad Bellows Type is a specialized component designed to prevent workpiece drop during handling in multi-vacuum pad systems. Its primary purpose is to securely hold and convey retort packaging or food-grade bags by creating stable suction, ensuring safe and reliable transfer without slippage or damage. This makes it ideal for applications where precision and stability are critical, such as in glass transfer, painting processes, and removal of molded products—where the pad leaves no suction marks and follows the workpiece even when tilted.

Construction and Materials

The bellows is constructed using a range of elastomeric materials including nitrile rubber, silicone rubber, urethane rubber, fluoro rubber (HNBR or FKM), and conductive variants such as conductive silicone rubber and conductive NBR. The seal rubber specifically uses low concentration ozone-resistant HNBR or FKM, ensuring durability under harsh environmental conditions. Notably, no copper-based metallic material is used in the flow paths to prevent contamination of food-grade or sensitive processes.

Configuration and Connections

The bellows comes in two distinct configurations: with ribs and ribless with bumps. The ribless, bump-equipped design features a smooth lip that enables stable suction on spherical-shaped workpieces, improving contact and reducing slippage. A resin attachment is available for direct mounting to bellows-type pad holders, ensuring secure integration into existing vacuum systems.

Operating Characteristics

Operating performance is optimized with a range of vacuum pad sizes (φ2 through φ100 mm), allowing precise matching to different workpiece dimensions. The system supports various connection types including barb fittings such as φ3x2, φ4x2.5, φ6x4, and φ1/4"x0.18", as well as threaded interfaces like M3x0.5, M5x0.8, M6x1, M8x1.25, G1/8, 1/8-27NPT, and larger male or female threads up to G1/2 and 1/2-14NPT. These options ensure compatibility with a wide range of vacuum systems and equipment.

Sizes and Options

Available in multiple pad sizes ranging from φ2 mm to φ100 mm, the product offers scalable solutions for different applications. While color is not specified, the selection includes standard materials such as HNBR and FKM rubber, which are optimized for food packaging and chemical environments. The absence of copper-based materials ensures compliance with contamination-sensitive processes.

Installation and Integration

Installation is supported through dedicated resin attachments designed specifically for bellows-type pads, enabling direct mounting to pad holders. The vacuum pad itself has a standard internal diameter (I.D.) that matches the specified pad size, and when used without a pad (as a holder only), it features an internal diameter of φ1.6 mm. These integration points ensure reliable mechanical alignment with existing vacuum systems.