Universal Tensile Testing Machine, description about 3PB 4PB Computer Control Composite Material Compressive Strength Tester, Bending Resistance Tester on China Suppliers Mobile

Product Description

3PB 4PB Computer Control Composite Material Compressive Strength Tester,

Bending Resistance Tester

Products Description

3 Points 4 Point Bending Strength Testing is most frequently employed, in which a specimen having either a circular or rectangular cross-section is bent until fracture or yielding using a three point flexural test technique. The flexural strength represents the highest stress experienced within the material at its moment of yield.

The test method for conducting the test usually involves a specified test fixture on a universal testing machine. Details of the test preparation, conditioning, and conduct affect the test results. The sample is placed on two supporting pins a set distance apart.

Purpose of Bending Testing

Bend testing a material allows for the determination of that materials ductility, bend strength, fracture strength and resistance to fracture. These characteristics can be used to determine whether a material will fail under pressure and are especially important in any construction process involving ductile materials loaded with bending forces. If a material begins to fracture or completely fractures during a three or four point bend test it is valid to assume that the material will fail under a similar in any application, which may lead to catastrophic failure. Our 3 Points 4 Point Bending Strength Testing Machine can fully achieve this purpose.

Common Bending Testing Method

There are four common types of bend tests. In a guided bend test, the sample is placed horizontally across two supports and then a force applied to the top of the midpoint deforming the sample into a “U” shape. In a semi-guided bend test, the specimen’s midpoint is bent to a specific angle or inside radius. In a free bend test, the ends of the sample are pushed together, but no force is applied to the bend itself. Finally, a common fracture toughness test (ASTM E399) consists of a sample with a precracked starter crack on the bottom side of the midpoint which is loaded into a 3-point bend fixture so that the midpoint force is applied on the opposite face from the fracture.

Main features of 3 Point 4 Point Bending Strength Testing Machine

1. Whole facility structure is made of baking varnish aluminum profile,and inner part is applied the high-accuracy,low-resistance and zero clearance of dual-ball screw and oriented pole, through which highly improve the loading efficience and structure rigidity.

2.Use famous brand Panasonic servo motor, which ensure high efficiency,steady transmission and low noise.

3. Apply brand computer as the main control system, computer control with TM2101 software, back to origin automatically after the test, and can store data automatically or by manual operation

4. Data transmission: RS232, and displacement resolution: 0.001mm

5. Graph scale automatic optimization allows best measurement and can implement graphics dynamic switching by the test.

Specifications of 3 Point 4 Point Bending Strength Testing Machine

Items	3 Points 4 Point Bending Strength Testing Machine
Capacity	100. 200. 500. 1000, 2000, 3000, 5000, 10000kg
Unit Switchover	G, KG, N, LB
Display Device	LCD or PC / Tensile Testing Machine
Resolution	1/250,000
Accuracy	±0.5%
Max. Stroke	1000mm (including fixture)
Test Speed	0.1-500mm/min (adjustable )
Motor	Panasonic Servo Motor
Screw	High Precise Ball Screw
Elongation Accuracy	0.001mm
Power	AC220V, 50HZ or customized
Weight	Approx.500kg / Tensile Testing Machine
Accessories parts	Bend clamp, computer system, English software CD, Operation user manual