Specification :

Machine Applications and Features
JB-300B Pendulum Impact Testing Machine is developed as perGB/T3808-2002, and can finish impact test according to GB/T229-1994 . It can realize two kinds of impact energy 300J and 150J. The section area of specimen is 10 x 10mm. mainly use to test larger impact toughness ferrous metal, such as: steel and alloy material.
Its principle is to calculate difference of the energy before and after pendulum impacting, the difference is energy which absorbed by specimen. The machine can be operated by semiautomatic, easy to operate, and high efficiency.

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Main specification
1
Impact energy 300J
150J
2
Dial graduation range and value
Range of energy 0^300J 0^150J
Per graduation value 2J 1J
3. Pendulum moment:
Pendulum impact energy 300J 150J
Pendulum moment 160.7695N.m 80.3848N.m
4
Pendulum preparing angle 150º
5
Distance between pendulum center and impact point 750mm
6
Impact velocity 5.2m/s
7
Span of specimen seat 40mm
8
End face radius of specimen seat 1^1.5mm
9
Tilt angle of specimen seat support 0º
10
Radius of impact knife 2^2.5mm
11
Angle of impact knife 30º±1º
12
Thickness of impact knife 16mm
13
specifications of specimen 10 x 10 x 55mm
14
Net weight About 450kg
15
Dimension 2124s600s1340mm
16
Power supply 1 phases, 60Hz,220V
17
Power of motor 180W
19
Working condition
a) Ambient temperature: 10-35
b) Relative humidity: d85%
c) Around it without corrosive medium
d) Installing on the concrete groundwork, which thickness is not less than 150mm. or fixing on the base, which weight is over 880kg.
e) Levelness of installing datum plane of machine base is 0.2/1000.
Work condition of the testing machine

1. Relative humidity is not more than 80% at the range of 10and 35 room temperature;
2. The machine is installed rightly on the steady base and worktable;
3. In the condition of non-shake;
4. No erode medium all around;
5. The fluctuating range of the power voltage doesn’t exceed ±10% of the rating voltage;
6. Power of the testing machine should ground credibly;
7. The e is installed rightly on the steady base.
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€/Âp
²ûýÃ� 300J'$ 150$
²û¦ H5.0m/s
F$„lÃ’ 135°
Õ7/§èÃ� 40mm
/§³ãÃ’ R1.0^1.5mm
²ûÃ’ R2.0^2.5mm
FF¦ 800mm
ÆÕ7:ø 10×10×55 mm
b:ø 1000×630×1520mm
�� 320Kg

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Main applications:
This machine is designed for providing the specimens used in the impact testing machine
L71-UV may cut notch which according to the (Charpoy notch Impact Test Method For mental material) on the specimen for only one time .At the same time ,it has advantages of high precision, long life, low noise and coincide appearance etc.
Specification:
Notch: 300JBIG 150
Size of Specimen: H5.0m/s
Travel of cutting knife: 135°
Cutting speed: H5.0m/s
Dim: 1000×630×1520mm
Power supply: AC220V
Weight: 320Kg