Groove Tester

Groove tester is also called lifting device, which is used to measure the flat compressive strength and vertical compressive strength of corrugated base paper.

When the sample is raised on the groove tester, the adhesive tape is glued to one side corrugated or clamped in the vertical compressive strength clamp, and compressed on the compression tester to determine its strength.

Product features

Single chip microcomputer control adopts high precision PID constant temperature controller, digital display actual temperature and setting temperature, over temperature safety protection device.

With automatic memory, parameter setting and adjustment functions, the use of precision gear transmission mechanism.

Technical index

project		parameter	project	parameter
Operating speed		4.5r/min±1.0r/min	Outside diameter of grooved roller	(228.5±0.5)mm
Speed error		0.2 r/min	Groove thickness	（16±1）mm
Operating temperature range		(室温～200)°C可调	Gear number	84个
Standard operating temperature		（175±5）°C	Peak tooth radius	(1.50±0.1)mm
Temperature display resolution		1°C	Radius of tooth groove	(2.0±0.1)mm
Temperature indication error		±1%	Tooth height	(4.75±0.05)mm
Variation of temperature indication		≤1%	Gear tooth form	A型槽纹楞
Adjustable range of work pressure		(49～108)N	Spring tension	（100±5）N
Set pressure and work pressure error		±5%	——
Standard: flat comb component (Note: the vertical pressure clamp separately)
rack	The width of tooth is 19mm, the number of teeth is 9, the number of teeth is 19, the distance between teeth (8.5±0.05) mm, the tooth height (4.75±0.05) mm
Comb	Width 19mm, comb 10, tooth height (2.4 ± 0.1) mm
steel plate	（150×25×0.8）mm

Test description

With strict sampling equipment from the sample cut from long (152 + 0.2) mm, width (12.7 + 0.1) mm samples, the long side is a sample longitudinal sample into the groove was pre heated (heating to 175 - 8 Deg. C) two sticks, make the Leng, will since the sample Leng good, will complete the sample preparation according to test requirements of pressure clamps with flat or vertical comb, and then placed in the compression plate center tester under compression, the maximum force read the sample crushing bear specimens were measured, 10 valid data, the determination results with the mean value of said, accurate to 1N.

Note: in a vertical compression test, if the specimen deflects or bends from the clip to the joint of the paper, the result is discarded.

In a flat compression test, if the specimen deflects or the sample is disengaged from any point of the tape, the result is discarded.

Applicable standard

《Vertical compressive strength of corrugating medium》TAPPI T843

《Flat strength of corrugated base paper》GB/T2679.6 ISO7263 DIN53134 TAPPI T809

Device parameter

Power supply: AC220V + 22V 50Hz 0.5A should be reliably grounded

Overall dimensions (L * w * h): (570 * 400 * 330) mm

Net weight: 52kg

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​Groove Tester

Groove Tester