The Model GF-54 grips come in pairs and are designed for compressive three-point bend applications. Grips support unidirectional bending on rigid and semi-rigid materials. Grips mount using #10-32 thread mounting holes (provided).
Applications: Determining the flexural properties of light grade materials, etc...in the form of rectangular bars of standard or non-standard dimensions, molded directly or cut from sheets or other shapes.
The following properties can be determined:
Flexural Stress at a given time of test
Flexural Stress at the conventional deflection
Flexural Stress at Maximum Load
Flexural Stress at Rupture
Apparent Modulus of Elasticity in Flexure (modulus of elasticity determined by flexure test)
Three-Point Bend Jig (TG-18)
This jig operates in compression only. Specimen supports are supplied in the following diameters: 1mm, 4mm, and 10mm.
Packaging: complete jig with multiple specimen supports.
Application: Used to determine the flexural properties of rigid and semi-rigid materials including glass, ceramics, composites, wood and plastics. Specimens are formed in rectangular bars of standard or non-standard or non-standard dimensions molded directly or cut from sheets or other shapes.
The following properties may be determined:
Flexural Stress at a given time of test
Flexural Stress at the conventional deflection (Flexural Stress at deflection X a preset figure determined by the standard used)
Flexural Stress at Maximum Load
Flexural Stress at Rupture Apparent Modulus of Elasticity in Flexure
Friction, Peel, Paper & Adhesion Grips
Circular Platen for Adhesives Testing (GF-8)
This fixture has detachable, circular face plates made of hardened steel. A ball socket mounting screw helps keep upper and lower plates parallel and perpendicular to the applied force. Face plate diameter is 75mm (3 in). Hardened tool steel detachable face plate will accept specimens up to 3" diameter or any other shape specimen that will fit within a 3" diameter. Capacity: 500 lb; Upper grip weight: 12-1/2 oz; Combined grip length:5-1/2"
Applications: Used to determine the adhesive characteristics of sealant, adhesive and mastic by measuring the minimum tensile stress necessary to detach or to rupture the coating
90 Degree Peel Strength Jig (TG-38)
This fixture features a self adjusting sliding bed for 90° peel tests. The test plate may be moved freely in a horizontal position when the pressure sensitive material is removed in order to maintain a 90° peel angle.
Note: The test plate must be provided by the customer. The FINAT standard states that plate glass should be used. If stainless steel or aluminum is used as a substitute, it should be stated with the recorded results.
Applications: Used for peel tests on a wide range of materials including sealing tape, labels, laminated coatings, etc. Measuring peel adhesion at 90° normally gives a lower recorded value than at 180° and allows values to be measured for materials, normally giving paper tear. Peel adhesion is defined as the force required to remove pressure sensitive coated material, which has been applied to a standard test plate under specified conditions, from the plate at a specified angle and speed. This fixture is similar to that used in tests complying with BS 5350
Coefficient of Sliding Friction Jig (TG-35)
Consists of a horizontal flat bed that incorporates a suitable clamping device and a sled. The underside is covered with a layer of smooth-faced foam rubber of medium apparent density.
Applications: Determination of the static and kinetic coefficients of friction of plastic film and paper when sliding over itself under controlled test conditions. A sheet of plastic film/paper is clamped to a horizontal bed and a similar film/paper is clamped to the underside of a sled. The force required to overcome the frictional resistance between the two imposed surfaces, when one is moved relative to the other along their plane of contact, is measured. The static coefficient of friction is determined by the force required to overcome the initial resistance between the two surfaces and the kinetic coefficient of friction is determined from the subsequent force when continuous sliding at a constant rate of movement is sustained
Finch Device for Tensile Testing Wet Paper (TG-72)
The object of this device is firstly to enable tensile tests to be carried out immediately after short soaking periods and secondly to avoid the difficulty of handling wet test pieces of low strength. It consists of a rigid inverted metal stirrup with a horizontal rod attached to it. Between the metal straps which form the framework of the stirrup is a small, easily removable container for holding water. Spring clips hold the container in position and also enable it to be slid up and down and to be left in either the raised or the lowered position. A metal tongue at the bottom of the apparatus permits the device to be fastened securely in the lower clamp of the tensile tester.
Note: The upper grip shown here is a TG34 and must be ordered separately.
Applications: Loop tensile testing of wet paper or board. Wet tensile strength is defined as the maximum force that a test piece of paper or board will stand, after soaking in water, before it breaks under specified conditions. Wet strength retention is defined as the ratio of the value of the tensile strength of a paper or board in the wet state to that of the same paper or board in the dry state, measured under the specified conditions
Climbing Drum Peel Test Jig (TG-580)
The peel test fixture consists of a flanged drum and flexible loading straps or cables. A drum clamp is used to securely hold the adherent against the face of the drum. The drum is balanced about the axis using counter weights placed diametrically opposed the drum clamp to compensate for the clamp mass.
Packaging: includes fixture and loading straps.
Applications: Used to determine the resistance of joints to perpendicular peel stresses on the adhesive layer. Applicable to the testing of joints between an outer metal sheet and the core of sandwich assemblies, e.g.: honeycomb or other forms of composites. The adherents are separated steadily by the action of a revolving drum which rotates by the application of a tensile force from the associated testing machine
Shouldered Grip for Adhesion Tests (TG-136)
For tension tests of adhesives, sealants and mastics between two basic plates located in self-centering "T" slots. Maximum sample area is 2" (50 mm). Capacity: up to 1000 lb (5kN); Minimum load cell: 100 lb (500N); Temperature limits: -94°F to 572°F (-70°C to 300°C)
Clevis Grips
Clevis Grips (GF-2)
May be used for testing tension springs, punched specimens or securing odd shaped parts. Clevis pins have concave diameter to assure specimen centering and to secure pin in place while under load. Throat clearance with pin installed is 1/2" at centerline. Throat width will accept specimens to 3/8". Capacity: 500 lb; Upper grip weight: 4 oz; Combined grip length: 3-5/8".
The model GF-2 Clevis Grips come in pairs and have a concave diameter that centers the specimen and secures the pins while under load. The throat clearance with the pin installed is 13 mm (1/2 in) at the centerline.
Applications: Tensile testing of springs and odd parts, etc
Click here for Flexural Grips Brochure
Click here for Friction, Peel, Paper & Adhesion Grips Brochure
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Tanita KD-200 Digital Scale
Was $179.95 1000 x 1 g (0-35 oz x 0.05 oz) - now $79.95
2000 x 2 g (0-70 oz x 0.1 oz) - now $82.95
5000 x 5 g (0-11 lb x 2 oz) - now $84.95