With endless applications and materials to test, comes the need for grips, fixtures, and connections of all sizes. The following page takes a comprehensive look at the various connection types that Instron has to offer and provides an organized view to understand and select the couplings and adapters needed for your application.
Need help finding the right coupling or adapter? Check our Compatibility Guide to learn about the various types of clevis interfaces commonly found on Instron’s electromechanical systems. Please contact us if you have any questions.
Rigid Clevis to Clevis Adapters
Clevis to clevis adapters are used for grip and fixture connections that have a larger or smaller clevis than the load cell or machine adapter.
Flexible Clevis to Clevis Adapters
Clevis to clevis adapters are used for grip and fixture connections that have a larger or smaller clevis than the load cell or machine adapter. Flexible adapters are used for some applications for the alignment of specimens.
Clevis to Threaded Adapters
Clevis to thread adapters are used for grip and fixture connects on floor model systems when the load cell or machine has a threaded connection.
Threaded to Threaded Adapters
Threaded adapters are generally used for grips and fixtures to account for high-capacity testing. They will be needed for most hydraulic load string connections, load strings over 100kN, and for systems with threaded base and load cell connections.
Machine Base Adapters
Machine base adapters are generally used for connecting a grip or fixture to the machine. On machines 10 kN and below, a clevis adapter with a through hole for a screw is used. On 30 kN, 50 kN, and 100 kN machines, a flange adapter with clevis and bolt circle is used. For machines above 100 kN, see the threaded adapter section.
Piggyback Load Cell Adapters
Piggyback load cell adapters allow the system’s primary load cell to remain in place while a secondary, low-capacity load cell is installed.
Piggyback Load String Adapters
Piggyback load string adapters allow high-capacity grips to remain on the load string while providing a connection to utilize a wide variety of other fixtures.
Universal Spherical Tension Adapters
Universal Spherical Tension Adapter (USTA) kits provide a unique spherical movement for tension applications where alignment is critical and minor compensation is required. These threaded adapters are used for mounting tension fixtures to the machine load cell or base, or for secondary load string adaptation.