Clamps
Adjustable devices designed to securely hold two objects together or to hold an object in place; used with standard-taper and ball-and-socket joints, glass and tubing assemblies, and with ring stands. Available as plastic joint clips, stainless steel pinch clamps, and taper clips.
A laboratory clamp is an essential piece of equipment used to support and secure labware and other laboratory apparatus such as flasks, reaction vessels, tubing, thermometers, probes, columns, funnels, and overhead stirrers.
Some laboratory clamps consist of a shaft and boss head, secured with hand-tightened thumbscrews, knurled nuts, or wingnuts onto a supporting rod, stand or scaffold. They may also include two- or three-pronged, adjustable closing jaws designed for gripping objects safely and securely.
Laboratory clamps are constructed of metals such as stainless steel, nickel-plated zinc, plated brass or diecast aluminum alloy for enhanced chemical, heat, and corrosion resistance. However, some components such as the adjusting screws may be made of plastic, and the prongs may also be lined or covered with cork, plastic, glass-fiber, or rubber for enhanced grip with minimal damage or breakage.
Laboratory Clamp Styles and Designs
• Universal, general-purpose clamps that are fully adjustable for accommodating and securing a wide range of items of different sizes such as columns and thermometers
• Retort clamps for securing round-bottom flasks and similar glassware
• Fork clamps for securing and supporting cone-and-socket ground glassware joints
• Three-prong extension clamps, sometimes available with spring-loaded jaws, for holding irregularly shaped or outsized objects
• Specialized clamps for securing burettes and condensers or reaction vessels
• Chain clamps, which incorporate a circular, adjustable chain loop to hold cylinders and beakers
Quickfit™ Polyacetal Joint Clips
Manufactured from polyacetal for strength and rigidity. Quickfit™ Polyacetal Clamps for Conical Joints are designed to secure corresponding Quickfit™ glassware with conical joints.
Pyrex™ Quickfit™ Metal Retaining Clips
Use with soxhlet extractors, flat flange lids and reaction vessels. Pyrex™ Quickfit™ Metal Retaining Clips apply positive pressure to both surfaces with spring wire design.
DWK Life Sciences™ KECK™ Clip, for conical joints, from POM
The KECK™ clamp is used to secure a standard ground joint connection.
Lenz Laborglasinstrumente™ Keck™ POM Conical Joint Clips
Ensures a secure connection while preventing damage to glass tubing and increasing safety in the laboratory. Lenz Laborglasinstrumente™ Keck™ POM Conical Joint Clips are manufactured from temperature resistant polyoxymethylene (POM).
Azpack™ Unex™ Tubing Clips
Twist nut to constrict and release tubing. Azpack™ Stainless Steel Tubing Clips are designed to distribute and apply pressure evenly.
Fisherbrand™ Hoffman Clips
For use with tubing up to 15mm in the laboratory.
Keck Standard Taper Clips
Ideal for glass and tubing assembly
Lenz Laborglasintrumente™ Safety Clip Conical Joint Clips
POM safety clip for conical ground joints
Fisherbrand™ Blender Bag Clips
For all homogenizer bags that fit Stomacher machines and other paddle blenders. Fisherbrand™ Blender Bag Clips are manufactured from polyethylene.
BRAND™ Fastening Clip
Winkler pattern. For use with oxygen flasks.
Lenz Laborglasintrumente™ Clips for Ground Joints
Stainless steel clips for conical ground joints
Keck Standard Taper Clips, Joint Size 45
Use these economical Standard Taper Clips with a joint size of 45 to securely hold conical joints under pressure.