Rubber tips are used for gentle, low-stress die pickup — ideal where a firmer collet risks marking or cracking the die surface. UPT rubber tips are available for both normal and high-temperature processes, with hole diameters as small as 0.08 mm, and are mounted on stainless steel tip holders sized to match your bonding equipment.
Hole diameters from 0.08 mm · Normal & high-temperature grades · Stainless steel holder mounting
Material & Temperature Options
Rubber tips are offered in nitrile-butadiene rubber and silicone rubber, selected to match your process temperature and required resistivity.
- Nitrile-Butadiene Rubber (NBR) — 50–95 Shore A hardness, rated to 120°C, dissipative
- Silicone Rubber (SR) — 55 Shore A hardness, rated to 250°C, dissipative
Both normal-temperature (CTR series) and high-temperature (HCTR series) constructions are available. Standard body styles include round tips, stepped tips, and rectangular or square-profile tips for specific pad geometries — sized to the shank installation dimension of your tip holder (H1 = 1.7 × 1.7 mm or H2 = 2.7 × 2.7 mm).
Choosing the Right Hole Size
Hole diameter is the key selection parameter — it should match the die thickness and pickup force required by your process. UPT rubber tips cover a wide range, from ultra-fine 0.08 mm holes for thin die up to several millimeters for larger components.
Full Dimensional Reference
Rubber tips are available across a wide range of hole diameters, body styles and tip holder mounting sizes. Download the complete dimensional table — covering CTR, HCTR, RT, RTTH, RTX and RTWZ series — for exact sizing.
How to Order
Not Sure Which Rubber Tip Fits Your Process?
Send us your die thickness and size, tip holder installation dimension (H1 or H2), and process temperature — our engineers will confirm the hole size and recommend the right configuration.