TABER® STIFFNESS TESTER 362 T (Typ 150-E)

Description

The Original TABER® Stiffness Tester 362 remains the standard for stiffness testing and is referenced in the specifications of many standards organizations. Pioneered by Taber in 1937, the Stiffness Tester has been continuously enhanced to meet modern testing requirements and specifications. It is used for tests on flexible materials such as thin plastic plates, paperboard, paper, metal foils, felt, leather etc.

Stiffness and Resilience

One Taber Stiffness Unit is the bending moment of 0.2 g applied to a 3.8 mm wide specimen at a 5 cm length while flexing it to a 15° angle. A Stiffness Unit is the equivalent of 1 g/cm.

Resilience is the elastic quality of a material expressed as the ratio of basic stiffness to initial stiffness calculated by the following formula:

Percentage of Resilience = Basic Stiffness x 100 / Initial Stiffness

Initial Stiffness is the first reading obtained immediately when flexing the specimen to the endpoint of deflection and is generally used for comparing relative stiffness qualities.

Basic Stiffness is the loss of stiffness caused by realignement of the molecules experienced by the material when the specimen is held at the end point of deflection.

Design and Function

The Original TABER® STIFFNESS TESTERS 362 include three major components: a constant speed motor, a weighted free-swinging pendulum with a clamping block to hold the specimen at the face, and a powered, gear-driven rotating disc.

On the Type 150-E the test results appear automatically on the display panel and can be downloaded to a C or printer.

The clamping block is precisely aligned with the centre of rotation of the gear-driven disc. The specimen to be tested is held on the top end in the jaws of the clamping block and at the lower end between two adjustable rollers attached to the rotating disc. In this way, 5 centimetres of the specimen are flexed in the standard 10 to 100 unit test range.

When power is applied to the gear-driven disc, a resulting torque is placed on the specimen causing angular deflection in the pendulum. This deflection is indicated directly on the digital display.

This version of the TABER® STIFFNESS TESTER is CE approved and is 115 or 230 VAC, 50/60 Hz operational.

The Type 150-E features a 16 key keypad, a 4 x 20 character vacuum fluorescent display, parallel printer port, RS-232 port and a real-time clock and calendar. Stiffness readings are automatically converted to the appropriate user-selected stiffness range.

Up to 1,000 readings can be stored in the non-volatile memory. Average, standard deviation and high/low readings are automatically calculated.

The stored values are classified by the time and date or by a designation entered by the operator. Stored readings may be printed or downloaded to a PC.

Operators have the ability to customize the direction, deflection and number of cycles.

Scope of delivery

• Bendability Measuring Instrument Original TABER® STIFFNESS TESTER 362 (Type 150-E)
• 3 Auxiliary range weights (500, 1000, 2000 units)
• Compensator weight (range: 0 - 10)
• Jaw assembly 6 mm with ratchet stop roller
• Connecting cable
• Protecting plastic cover
• Operating instructions