Grips and Fixtures for Materials testing

TTS can offer new grips and fixtures to suit any test application and are designed to fit most OEM machines. All our grips and fixtures are manufactured here in the UK to the most exacting specifications.
Our grips are supplied and priced as a pair and include a standard set of jaws, exceptions are fixtures such as bending jigs, friction testing etc where the upper part is completely different from the bottom.  All grips and fixtures come complete and ready to use and are adapted to suit your particular testing machine.  Due to the large quantity of different testing machines in the market we keep our grips as piece parts and assemble to order. 
Our grips are significantly more cost effective than OEM grips and but made to equally high standards. 

Miscellaneous Grips

Our collection of assorted testing grips and fixtures include motorised ring grips, T slotted sample holders and a split bollard webbing grip.

 
 
ST1 1kN
£234

This is a general purpose grip for flat samples.

The sample is held between the body and the eccentrically mounted roller. As the load increases the gripping action becomes self tightening due to cam action between the roller and the body.

Samples up to 30mm wide and 5mm thick can be accommodated. Thicker samples will fit but the load axis moves to far from the centre of the mounting hole. Also the self tightening action becomes less effective with thicker samples, a trial with your sample may be necessary to determine the effectiveness of the gripping action.​

 
 
ST18 10kN
£2,046

The grip consists of two anvils 15mm diameter and 20mm wide. The anvils are mounted on shafts carried on ball bearings allowing the anvils to rotate. The lower anvil is driven by a small electric motor through a gearbox and is mounted to the lower anchor pin of the testing machine. The upper anvil is mounted to the loadcell of the testing machine and is free to rotate.

The lower anvil speed can be adjusted between 0 and 20 RPM. The speed control is mounted in a separate box, which can be positioned to suit the operator.

The grip is used to test loop samples such as ‘O’ rings or rubber bands. The sample is placed over both anvils and rotated by the electric motor while a tensile load is applied by the testing machine. In this way stress in the sample is equalised through its length.

 
 
ST19 10kN
£486

The grip consists of two T slotted sample holders and two rectangular inserts. The standard inserts have M10 female threads for samples with M10 male threaded ends.

The inserts can be modified to suit a wide variety of samples. Threaded samples up to M16, standard round dumbbells, and headed samples ( screws, nails, bolts etc. ) are some of the samples that can be tested.

We can also supply plates 50mm square for adhesive testing. This test is commonly used in the timber industry where the two plates are glued either side of a sample of laminated wood e.g. plywood. The glued assembly is then placed in the holders and pulled to test the inter-laminar glue line strength. This arrangement has been used in many other industries for tension testing adhesives.

 
 
ST20 50kN
£648

The grip consists of two T slotted sample holders and two rectangular inserts. The standard inserts have M10 female threads for samples with M10 male threaded ends.

The inserts can be modified to suit a wide variety of samples. Threaded samples up to M20, standard round dumbbells, and headed samples (screws, nails, bolts etc.) are some of the samples that can be tested.

We can also supply plates 50mm square for adhesive testing. This test is commonly used in the timber industry where the two plates are glued either side of a sample of laminated wood e.g. plywood. The glued assembly is then placed in the holders and pulled to test the inter-laminar glue line strength. This arrangement has been used in many other industries for tension testing adhesives.​

 
 
ST48 30kN
Motorised Belt tester
£2,278

The grip consists of two anvils 50mm diameter and 60mm wide. The anvils are mounted on shafts carried on ball bearings allowing the anvils to rotate. The lower anvil is driven by an electric motor through a gearbox and is mounted to the lower anchor pin of the testing machine. The upper anvil is mounted to the loadcell of the testing machine and is free to rotate.

The lower anvil speed can be adjusted between 0 and 20 RPM. The speed control is mounted in a separate box, which can be positioned to suit the operator.

The grip is used to test continuous loop samples of belting, such as machine drive belts, conveyor belts etc. The sample should have one flat side. The sample is placed over both anvils and rotated by the electric motor while a tensile load is applied by the testing machine. In this way stress in the sample is equalised through its length.

 
 
ST63 2kN
Bollard Grips
£460

This grip has a 12mm diameter bollard, the surface of which can be plain plated steel or rubber coated. Because of the offset of the bollard pivot point from the axis of loading, the tension on the sample clamps the tail of the sample between the bollard and the body. As the load increase the clamping force increases so the grip is self tightening. Initial clamping force is provided by a tension spring.

The sample must be flexible enough to wrap around the bollard and conform to it’s surface.

 
 
ST89 50kN
Split Bollard Webbing Grip
£2,298

Originally designed for seatbelt webbing, this grip can be used for a large variety of flexible flat samples such as strapping used in the packing industry, webbing straps for commercial vehicles, aircraft etc. A reasonable length of sample is required so that you can load the grips, but the tails can then be pulled through to take out the slack before commencing the test.

It is advisable to use a guard on the testing machine while testing this type of sample as the energy released at the break point can cause the broken ends of the sample to flail around violently.

 
 
ST91 1kN
Thin Film Puncture Jig
£POA

This fixture is designed to test the puncture resistance of flexible samples cut from thin film. Samples can be either circular or rectangular. The rubber lined clamp consists of an upper and lower clamp plate forced together by two toggle clamps. The standard clamp is 88mm diameter with a central 50mm diameter hole. The samples can be larger than the outside diameter of the clamp as long as the material is flexible enough to wrap around the sides of the body of the fixture. A standard 20mm probe is supplied, which mounts on the loadcell of the testing machine. Alternative smaller diameter clamp plates and other diameter of probe can be supplied on request, alternatively larger fixtures can be supplied if required.

 
 
ST6-6
£329

100mm diameter Steel compression platen. Price per pair