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Capillary Cleaving and Cutting Capabilities - Polymicro Technologies
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Capillary Cleaving and Cutting Capabilities - Polymicro Technologies


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Flexible Fused Silica Capillary Tubing
• Standard & Precision Cleaving
• Laser Cutting
• Saw Cutting
Cutting Edge Technologies
Optimal peformance in many capillary applications is dependent upon the end face quality. Selection of the right cleaving or cutting technology is important. Polymicro Technologies offers a range of capillary cleaving and cutting capabilities, including:
Laser Cutting
Polymicro has state of the art laser capabilities which yield ultra-high quality precision cuts. Laser cutting offers the added feature of a defect free, polished end face while maintain exacting length tolerances. Although there is some dependence on wall thickness, laser cutting of ID down to 5u,m has been demonstrated. Laser cutting removes a few millimeters of the coating from the tip and rounds the edges of the capillary leaving a smooth end-face transition. It is not uncommon for both ends to be laser cut, although this is not mandatory for all applications. Laser cut capil­lary is used in applications where durable, high quality, low debris end faces are required. Examples include MS inter­faces and nebulizers.
Saw Cutting
Many high volume applications are best served by employing a saw cutting approach for preparing capillary pieces. Saw cut pieces often have chips and minor fractures, but are produced in bulk processes that help minimize costs. If improved end faces are critical, lapping steps can be added. For the highest quality end faces, a final polishing step is included. Critical, and sometimes limiting, factors to con­sider include the capillary wall thickness, ID, and overall part length. This approach is often selected for short, thick wall parts, with ID greater than 100u,m.
Let one of Polymicro's Technical Sales staff assist you in selecting the best technique for your application.
i Standard Cleaving i Precision Cleaving
i Laser Cutting i Saw Cutting
Standard Cleaving
Polymicro employs Standard Cleaving for general capillary applications. Capillary are cleaved to customer specified lengths with end face quality providing excellent performance in analytical techniques such as GC and CE. For customer convenience, standard cleaved capillaries are typically packaged in polymer bags with quantities up to 50 per baggie. Standard cleaves are available on windowed capillary products as well as many capillary assemblies and arrays. To address high volume demands, Polymicro implements fully automated cleaving technology to minimize production cost. Put the superior reproducibility of Polymicro Cleaved Capillaries in your laboratory.
Precision Cleaving
Polymicro has worked diligently to develop and optimize devices which yield high quality, precision cleaves. Precision Cleaving yields nearly perpendicular end faces and tight length tolerances while minimizing debris and surface defects, making this the technique of choice in emerging high performance, analytical methods. Precision cleaving is employed when preparing capillary for use in appli­cations such as Nano-LC, Electrospray MS, Mass Flow Control, and Microfluidic interfaces. Cleaving operations are conducted in micro-clean environments and parts are packaged in high quality bags; both minimize particle con­tamination.
Polymicro
TECHNOLOGIES
A Subsidiary of mo I ex
18019 N. 25th Avenue Phoenix, AZ 85023-1200 Ph: (602) 375.4100 Fax: (602) 375.4110 polymicrosales@molex.com www.polymicro.com
• Flexible Capillary
• Multimode Optical Fiber
• Specialty Assemblies
• Micro-Components
Copyright © 2008 Polymicro Technologies
PT-Cutting & Cleaving/01-08

pageCatalog pdf di En 2012-05-22-31