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.
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™ Bossheads
For securely keeping clamps in place on laboratory scaffolding. Fisherbrand™ Bossheads come with offset jaws for greater strength.
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.
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.
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.
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.
Bochem™ Aluminum Universal Clamp
Manufactured from aluminum. BOCHEM™ Aluminum Universal Clamp is DIN 12895 certified.
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.
Thermo Scientific™ Nalgene™ Polypropylene Pinch Clamp
From completely open to restricted flow to completely closed—experience precise, one-hand regulation of fluid flow with the Thermo Scientific™ Nalgene™ Polypropylene Pinch Clamp.
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 2-Prong Extension Clamp, single adjustment, medium, nickel-plated zinc
Designed to securely hold a large variety of glassware and apparatus. Cole-Parmer™ Standard 2-Prong Extension Clamps are ideal for cylinder type labware.
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.
OHAUS™ Holder Clamp
OHAUS™ Holder Clamp provides secure support for holding glassware at elevated positions.