
3.Important technical parameters
MODEL | HST JBS-300B |
Type | B |
Control type | Electric |
Display type | with dial gauge and touch screen display |
Max. impact energy | 150J, 300J |
Pendulum moment 300J | 160.7695N.m |
Pendulum moment 150J | 80.3848Nm |
Min. Reading Values | 1 J |
The distance between the pendulum shaft and impact point | 750mm |
Impact speed | 5.2 m/s |
Raised angle | 150° |
Standard span | 40+0.2mm |
Round angle of the jaw | R1-1.5mm |
Round angle of impact edge | R2-2.5mm,R8±0.05mm |
Thickness of Impact Blade | 16 mm |
Angle accuracy | 0.1° |
Standard specimen dimension | 10mm×10(7.5/5)mm×55mm |
Power supply | 3 phases 4 lines, 50Hz, 380V |
Dimensions | 2124 x 600 x 1340mm |
Net Weight | 550Kg |
Structure and performance:
The testing machine is composed of fuselage, impact pendulum, sample support, measuring device, control mechanism and other parts
1. Fuselage: composed of a beam, Angle positioning mechanism and level.
2, impact pendulum: by an upper connecting sleeve, pendulum rod, pendulum, positioning block, impact blade, etc.
The pendulum energy consists of one main pendulum and four counterweight weights. One main pendulum is 25J. There are 4 pieces of 50J counterweight (users can choose according to their needs).
3. Sample support: composed of clamp support, clamp mouth and press block
4. Control mechanism: manual lifting hammer hanging pendulum, composed of manual and electric impact release mechanism. The mechanism is to fix the impact pendulum at a position of 150° and impact with an electric drop hammer.
5, measuring device: composed of a digital display acquisition system. The energy consumed by the sample after impact and the impact strength are shown.
6. The impact energy is calculated according to the following formula:
E=Pd (cosβ-cosα)
Where: Pd -- impact white moment (constant)
α -- measured value of pre-lifting Angle of impact pendulum (constant)
Beta -- Angle of rise after impact







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