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
Eisco™ Heavy Duty Boss Head, Chrome Plated, up to 20mm rods
This heavy duty boss head is die casted alloy with a chrome plated finish. It accepts rods up to 20mm in diameter at a right angle to one another. Large thumb screw for adjustments.
Eisco™ Metal Mini Boss Head - 15mm diameter
This die casted, all metal boss head is capable of holding lab equipment on a stand. Threaded screws can fit rods up to 13mm, and holds equipment orthogonally.
Eisco™ Slotted Base - Chemical Resistant Cast Metal
Eisco's cast metal slotted base is finished in a chemical resistant paint. Its jaws open to accommodate objects of up to 1.57 in.. The dimensions of the base are 3x3.5 in. and the depth of the jaws is 1.75 inches.
Eisco™ 4 Prong, Chrome Plated Retort Clamp
The chrome plated, cork lined 4 prong retort clamp is ideal for clamping glassware of various sizes onto retort rods. Clamp has a 5.65 in. long rod which is 0.314 in. ( 8 mm) diameter. Adjustable Jaw capacity is 0 in. to 4 in.
Bel-Art™ Acetal Plastic Screw Clamp
Acetal plastic screw clamp offers on/off and fine control so accurate that it replaces stopcocks in many applications.
Bel Art™ Polypropylene Buret Clamps
Noncorrosive clamp provides a steady grip without obscuring graduations.
Bel-Art™ Clavies™ Autoclave Safe Bag Clips
Autoclave safe bag clips can be opened and closed with one hand to easily and securely close the gathered top of an autoclave bag after it has been filled with wastes.
Bel Art™ Acetal Plastic Spring-Style Tubing Clamps
Self-closing spring operated tubing clamp is suitable for all flexible tubing.
Screw-Compression Pinchcock
Open sided—easily fits over tubing to regulate air/liquid flow.
Fischer Technical Company™ High Vacuum Tubing and Two Clamps
Includes hose clamps and tubing for pumps requiring 3/8 in. ID tubing.
Extension Clamps
Allow for variable distance between the object and support rod.
American Educational Products Steel Buret Clamps
Tube clamp holds objects from 1.9 to 3.5cm in diameter.
Adjustable Right-Angle Holder
Grips rods up to 1.6cm diameter.
Vernier™ Plastic Tubing Clamps (Pack of 100)
Replacement plastic tubing clamps for use with the Gas Pressure Sensor.