Clamps
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
Fisherbrand™ Bossheads
For securely keeping clamps in place on laboratory scaffolding. R&L Enterprises™ Bossheads come with offset jaws for greater strength.
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.
R&L Enterprises™ Retort Stand Clamps
Enables articles from 2 to 90mm in diameter to be clamped securely. R&L Enterprises™ Retort Stand Clamps feature aluminum alloy jaws with other parts of plated brass.
Fisherbrand™ Zinc Alloy Bossheads
For securely keeping clamps in place on laboratory scaffolding. Fisherbrand™ Zinc Alloy Bossheads come with plated clamping screws with plastic heads.
Fisherbrand™ 3-Prong Utility Clamp
With a screwed shaft and nickel-plated bosshead which can be screwed up and down shaft 35mm and locked in any position with a wing nut.
Fisherbrand™ Bossheads
For securely keeping clamps in place on laboratory scaffolding. Fisherbrand™ Bossheads come with offset jaws for greater strength.
R&L Enterprises™ Chain Clamps
Provides support for articles from 0 to 150mm in diameter. R&L Enterprises™ Chain Clamps have jaws that are tightened by the use of a plastic-headed tension screw.
Fisherbrand™ Plastic Joint Clips
Made of plastic for use on standard taper glass joints
Three-prong Clamps
Use this clamp for a variety of laboratory applications. Three-prong Clamps are suitable for articles from 1 to 70mm in diameter.
Bochem™ 3-Finger Laboral Retort Clamp
Coated with soft PVC, the three fingers of this independently adjustable retort clamp are well suited for holding delicate objects. Bochem™ 3-Finger Laboral Retort Clamp has a base construction of Laboral aluminum alloy.
Cole-Parmer™ Heavy-Duty Three-Prong Extension Clamps
Securely hold your flasks, beakers and burettes with these extension clamps. Heavy-Duty Three-Prong Extension Clamps feature an innovative closed yoke design that minimizes contamination and corrosion of internal components and is easier to clean and decontaminate.
Cole-Parmer™ Standard 3-Prong Extension Clamp, dual adjustable, medium, nickel-plated zinc
Designed to securely hold a large variety of glassware and apparatus. Cole-Parmer™ Standard 3-Prong Extension Clamps are ideal for irregularly shaped objects.
Cole-Parmer™ Standard Three-Prong Extension Clamps
Securely hold flasks, beakers and burettes with these extension clamps. Standard Three-Prong Extension Clamps feature an innovative closed yoke design that minimizes contamination and corrosion of internal components and is easier to clean and decontaminate.
Fisherbrand™ Hoffman Clips
For use with tubing up to 15mm in the laboratory.
