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
Chemglass Life Sciences Clamp, Horseshoe Style, #28
Clamp, Horseshoe Style, #28. Horseshoe shaped corrosion-resistant steel clamp for use with spherical ball and socket joints. Clamp has two machine bolts and thumbscrews 180º apart to apply uniform tension. NOTE: NOT FOR USE WITH CG-124 O-RING JOINTS.
Electron Microscopy Sciences Double Clamp with Stand 1 each
Two adjustable arms with alligator jaws in a heavy base. A versatile tool which can be adjusted to any position and firmly hold small items of any shape.
Chemglass Life Sciences Clamp, Pinch, Stainless Steel, #40
Clamp, Pinch, Stainless Steel, #40. Made entirely of stainless steel. Part numbers CG-150-01 and CG-150-03 are supplied WITHOUT a screw type locking device. All other sizes have the screw type locking device.Note: The size #102 Stainless Steel pinch clamp is available on a special order basis.
McMaster-Carr Worm-Drive Clamps with Smooth Band
Worm-Drive Clamps with Smooth Band for Soft Hose/Tube, 430 Stainless Steel, 1"- 1-5/8" Clamp ID Range
Cole-Parmer Polypropylene Stir Rods, 10" x 7mm, 12/pk
Stir rods are made of polypropylene and are rounded at both ends. Maximum temperature is 248°F (120°C). Autoclavable.
Cole-Parmer Regular Holder, Nickel-Plated, 0 to 0.71" Dia Rod s
Ideal for holding clamps to lab-frames, at a 90 angle.
Cole-Parmer Column Clamp, Large, Stainless Steel, 2.52" to 5.51" Grip Range
Ideal for large cylindrical glassware and similar labware. The large, flat thumbscrew/worm-drive provides a firm hold. NOTE: An additional connector must be purchased in order to attach clamps to frames or other apparatus.
