Differentiating force: the automatic spring tension testing machine indicates the difference of the minimum value of the effective resolution.

Residual height: the height of the object after deformation under the action of external force, H.

Variable shape: the relative displacement generated by the spring tension test machine spring along the direction of load, its deformation height (free height -- remaining height), denoted by delta H.

Spring stiffness: the load or torque required to cause the spring to produce unit length (keratin). K= (f2-f1)/(h2-h1) is expressed in N/mm.

The following introduction BJTLY - Z series automatic spring tension and compression testing machine is on the basis of the People's Republic of China machinery industry standard JB/T 7796-7796 standard for spring tension and compression testing machine and JIS B7738-2001 "compression and tensile coil spring testing machine" regulation of technical requirements for production, JJF1134-2005 "the special work force tester calibration specifications" check.

Specification: BJTLY-Z100, 1000N, 2000N, 3000N, 5000N.

Structure: ball screw.

Working mode: ball screw drive, precise motor load.

Automatic spring tension testing machine display mode: large liquid crystal, Chinese character display.

Data processing: automatic collection and processing, can save, query, print.

Automatic spring tension testing machine range: 1-100%.

Test force resolution: 100N/0.01N 1000n-5000n /0.1N.

Zero relative error: plus or minus 0.1%.

Relative error of test force indicator: + + 1.0%.

Repeatability relative error: 1.0%.

Displacement resolution: 0.01mm.

Displacement indicator error (micron) : less than or equal (50+0.15l)

Stretching space of automatic spring tension testing machine: 500mm.

Compression space: 500mm.

Diameter of pressure plate: 110mm.

Upper and lower pressure plate parallelism: less than or equal to 0.05mm.

Speed range: 0.01-500mm/min.

Automatic spring tension test machine size: about 530 * 275 * 1250mm.

Testing machine weight (net weight) : about 130kg.

Power supply: AC 220V plus or minus 10% 50Hz.

Protection function: program, mechanical double protection.

Noise: 50dB (A)

Automatic spring tension testing machine assembly, electrical, appearance: accord with national standard GB/T 2611.

Packaging and transportation conform to mechanical standards: JB/T 6147.