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
Sigma Aldrich Fine Chemicals Biosciences Joint clip standard taper
Color coded rigid polyethylene joint clips fit standard taper joints. Will not scratch glassware or corrode withstands temperatures up to 120 C.
Chemglass Life Sciences Clamp, Pinch, Stainless Steel, #65
Clamp, Pinch, Stainless Steel, #65. 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.
AVANTOR MASTERFLEX (VWR LLC) Mini Tubing Clamps for up to 1/4"" Tubing, On/Off, Acetal; 25/Pk
Mini Tubing Clamps for up to 1/4" Tubing, On/Off, Acetal; 25/PkDurable Celcon plastic clamp is autoclavable; won't rust, corrode, or distort. Accepts flexible tubing. Mini clamp accept up to 1/4" OD tubing and provides on/off control. The standard clamp accepts up to 1/2" OD tubing and features twelve-position ratchet control to adjust flow from fully-open to complete-closure.
Cole-Parmer Standard 3-Prong Extension Clamp, Dual, Medium, Stainless Steel
Designed to securely hold a large variety of glassware and apparatus. Ideal for irregularly shaped objects. Choose single adjustment style for standard use where one prong or "finger" is adjusted using a wing nut, while the other prong remains stationary or for a more versatile clamp choose the dual adjustment style. Utilizing thumbscrews, both prongs are easily adjusted over a wider range. Available in 3 sizes, small, medium, and large. Dual adjustable clamps are offered in either stainless steel or nickel plated zinc. Supplied with non-slip vinyl sleeves or for temperatures above 212°F (100°C), fiberglass covers.
Chemglass Life Sciences Clamp, Stainless Steel, Quick Release, 100mm Duran Flange
Made entirely from stainless steel, the clamp has three sections that firmly hold reaction vessel and lid together. Quick release mechanism has a screw adjustment for tension applied to the flange. 100mm Schott Duran Flange
Qosina Corp OPEN JAW SLIDE CLAMP
This item has a minimum order quantity of 1429 per supplier requirements. OPEN JAW SLIDE CLAMP
Cole-Parmer Chain Clamp, Large, 11" (280 mm) Dia, Nickel-Plated Zinc
Chain clamps have a quick slip-on-chain connection and a large easy-to-turn adjustment knob. Holds circular and irregularly shaped apparatus firmly. Clamps include integral connector and slip-on vinyl sleeve. NOTE: An additional connector must be purchased in order to attach clamps to frames or other apparatus.
Ace Glass, Inc. Open ring support, PVC coated aluminum, 4in OD, 3-1/4in ID, 12in arm
4" PVC coated open ring support has 12" extension arm for supporting glassware, such as separatory funnels and powder funnels, from the bottom. The long extension arm allows for easier connection to labframes or stands.