cardboard fabric bursting strength tester

cardboard fabric bursting strength tester   1. INTRODUCTION: cardboard fabric bursting strength tester  is a new type testing machine to test the bursting strength of corrugated boards, which is designed in accordance with related ISO standards and on the principle of modern mechanical design concept and design criterion of human-machine engineering. paper and paperboard bursting strength tester  belongs to electromechanical product which is with novel design, convenience for use, excellent performance and elegant appearance. paper and paperboard bursting strength tester  has abundant functions, such as, parameter testing, parametric transformation, parameter adjusting, parameter memory and parameter print. All are in accordance with related ISO standards. Burst Strength Testing Machine has data processing function which can directly output result of data statistics with convenient operation, easy regulation and stable performance.   2. PRINCIPLE: A test piece placed over a circular elastic diaphragm, it is rigidly clamped at the periphery but free to bulge with the diaphragm. Hydraulic fluid is pumped at a constant rate,  and bulged the diaphragm until the test piece ruptures. The bursting strength of the test piece is the maximum value of the applied hydraulic pressure.   Burst Strength Testing Machine   3. APPLICATIONS: Corrugated cardboard, Corrugated Package.   4. STANDARDS: ASTM3786 ISO2758     ASTM3786 ISO2758 paperboard bursting strength tester   5. SPECIFICATIONS:

NO.	ITEM	SPECIFICATION
1	Power:	AC220V±10%   2A  50Hz
2	Measuring Range:	300~5500kPa
3	Compression rate:	170±15ml/min
4	Resolution:	0.1kPa
5	Accuracy:	≥ 99.5 %
6	Diaphragm size:	bulge height: 2.5±0.2mm
		bulge diameter: 27.8mm
7	Diaphragm resistance:	When the bulge height is 10mm, the pressure is 170~220kpa
		When the bulge height is 18mm, the pressure is 250~350kpa
8	Upper clamp:	31.5±0.05mm
9	Lower clamp:	31.5±0.05mm
10	Hydraulic transducer :	<6000kpa
11	Clamp pressure:	≥690kpa

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