Non-Marking Suction Cups

The Ultimate Guide to Non-Marking Suction Cups by Nihon PISCO

Introduction

In industries such as semiconductor manufacturing, painting, display manufacturing (e.g., LCD handling), and other high-precision processes, even the slightest mark or deformation on components can compromise quality. Non-marking suction cups or mark-free vacuum pads from Nihon PISCO offer a gentle and reliable solution, striking a balance between secure grip and surface protection.

What Makes Them “Non-Marking”?

• Resin Lip Design: Unlike traditional rubber pads, the lip of the non-marking pad is crafted from hard resin, significantly reducing the risk of suction marks on delicate surfaces—though it does not eliminate them. 

• Flat Grooved Surface: These pads often feature a flat pad with grooves, designed to minimize deformation and wrinkling when handling thin or flexible materials like sheets or vinyl.

Applications & Use Cases

Ideal for high-precision handling and applications where surface integrity matters:

• Semiconductor and LCD manufacturing – perfect for clean, scratch-free transport. 

• Painted and coated surfaces – avoid visible mar or damage during robotic or automated handling.

• Thin, flexible workpieces – reduce wrinkling and maintain material quality.

Product Features and Selection

1. Materials and Sizes

   • Pad materials: PEEK, POM, and conductive variants. DirectIndustry

   • Available diameters: 10 mm, 20 mm, 30 mm.

2. Holder Compatibility

   • Supports a range of holder types: fixed (top/side), spring-type (with or without dust cover), and low-dust “S3 spec.” holders—ideal for sensitive environments.

3. Low Dust Emission & Quiet Operation

   • Spring-type holders—with strokes of 2, 5, 10, 15 mm—generate minimal dust and noise (~45 dB). 

4. Copper-Free & Ozone-Safe Construction

   • “S3 spec.” models use no copper alloy in metal flow paths, and employ HNBR or FKM seals for ozone resistance—vital for cleanroom and sensitive processes.

5. Blow-off Release Feature

   • Some holders feature blow-off air functionality for smoother release of the workpiece. pisco.co.jp