Bump (Free Fall Type)/Shock Test Machine
Bump Test Machine
This machine can be used for testing of test objects having weight from 50 Kg to 2000 Kg, with Acceleration from 3 "g" to 60 "g" & pulse duration from 3 ms to 20 ms. The machine is intended to reproduce the effects of repetitive bumps 60 to 180 bumps per minute likely to be experienced by components and equipment during transportation or when installed in various classes of vehicles. The machine is mounted on air springs and heavy duty shockers are also used to isolate it from the ground.
Bump test machine is a versatile test equipment to carry out bump tests in accordance with various National & International standards e.g. IS, MIL, EN, ISO, IEC, DEF & ASTM Standards.
Bump TEST MACHINE STANDARD MODELS
| Model |
BDBTM - 6060 |
BDBTM - 7575 |
BDBTM - 1010 |
BDBTM - 6060 |
BDBTM - 10 10 |
| Type |
Free Fall |
Free Fall |
Free Fall |
Free Fall |
Free Fall |
| Table Size |
600 x 600 mm |
750 x 750 mm |
1000 x 1000 mm |
600 x 600 mm |
1000 x 1000 mm |
| Payload Capacity |
250 Kg |
500 kg |
1000 kg |
500 kg |
1000 kg |
| Payload Height |
unlimited |
unlimited |
unlimited |
unlimited |
unlimited |
| Max Payload Size |
600 x 600 mm |
750 x 750 mm |
1000 x 1000 mm |
600 x 600 mm |
1000 x 1000 mm |
| Acceleration* |
3-60 g |
3-60 g |
3-60 g |
3-200 g |
3-200 g |
| Pulse Duration* |
3-18 ms |
3-18 ms |
3-18 ms |
3-30 ms |
3-30 ms |
| Pulse Shape |
Half-Sine |
Half-Sine |
Half-Sine |
Half-Sine |
Half-Sine |
| Standard Test** |
3’g’ – 10’ms’
7’g’ – 10’ms’
20’g’ – 11’ms’
30’g’- 6’ms’
40’g’ - 6’ms’ |
3’g’ – 10’ms’
7’g’ – 10’ms’
20’g’ – 11’ms’
30’g’- 6’ms’
40’g’ - 6’ms’ |
3’g’ – 10’ms’
7’g’ – 10’ms’
20’g’ – 11’ms’
30’g’- 6’ms’
40’g’ - 6’ms’ |
20’g’ – 11’ms’
40’g’ - 6’ ms’
50’g’ – 18 ’ms’
100’g’ – 6’ ms’
200’g’ – 3’ ms’ |
20’g’ – 11 ’ms’
40’g’ - 6’ ms’
50’g’ – 18 ’ms’
100’g’ – 6’ ms’
200’g’ – 3’ ms’ |
| Bump Rate |
1-3 bumps/sec |
1-3 bumps/sec |
1-3 bumps/sec |
1-3 bumps/sec |
1-3 bumps/sec |
| Max Drop Height |
50 mm |
50 mm |
50 mm |
50 mm |
50 mm |
| Max Deviation of specimen from table centre |
15 mm |
15 mm |
15 mm |
15 mm |
15 mm |
| Machine Mass |
2750 kg |
3100 kg |
3250 kg |
3600 kg |
4600 kg |
| Utilities required |
Plant air or bottled Nitrogen 6-8 bar 415V, 3 -phase 50 Hz |
| Safety Interlocks |
Mains Input Over & Under Voltage, P hase drop, programmer pad change protection, over travel |
Shock Test Machine
The machine is fabricated with Mild steel of a very robust design to provide necessary mechanical strength and rigidness. The machine produces the shock pulses using compressed air to force the platform to impact on the elastomer pads (Half-Sine Programmer Pads)which are placed between the platform and anvil of the impact area to produce half-sine pulses, Lead pellets are placed to generate saw tooth pulses and pneumatic cylinders are used to generate square pulses. The drop height and the air pressure are responsible to generate the desired acceleration.
Shock Test Machine is a versatile test equipment to carry out shock tests in accordance with various National & International standards eg. IS, MIL, EN, ISO, IEC, DEF & ASTM Standards.
The lifting of the platform is done by pneumatic cylinders, the drop height is determined by the desired acceleration level. In a shock test due to the rebounce action secondary shocks may occur, which are totally unacceptable by most of the test standards. Fail safe brakes are used as a rebounce brake and as a quick release device to avoid secondary and tertiary shocks. The shock test machine is isolated from the ground by heavy duty shockers and shock absorbers. The Shock test machine is supported by a PC based intelligent Instrumentation system to control, monitor and analyse acquired shock test waveforms. The system has 4 channels to monitor the shock pulses generated which are expandable upto 16 channels.
Shock Test Machine standard models
| Model
| BDSTM - 6060
| BDSTM - 7575
| BDSTM - 7575
| BDSTM - 1010
|
| Plate Form Size |
600 x 600 mm |
750 x 750 mm |
750 x 750 mm |
1000 x 1000 mm |
| Payload Capacity |
200 Kg |
250 Kg |
500 Kg |
1000 Kg |
| Payload Height |
unlimited |
unlimited |
unlimited |
unlimited |
| Max Payload Size |
600 x 600 mm |
750 x 750 mm |
750 x 750 mm |
1000 x 1000 mm |
| Insert Pattern |
100 x 100 mm Matrix |
100 x 100 mm Matrix |
100 x 100 mm Matrix |
100 x 100 mm Matrix |
| Stroke Length (Max) |
300 mm |
350 mm |
350 mm |
450 mm |
| Velocity Change No load |
7 m/s |
7 m/s |
10 m/s |
15 m/s |
| Velocity Change Full Load |
5 m/s |
5 m/s |
8 m/s |
8 m/s |
| Standard Test |
|
20’g’ – 11’ms’
30’g’ – 20’ms’
40’g’ – 6’ms’
50’g’ – 11’ms’
50’g’ – 18’ms’
100’g’ – 6’ms’
150’g’ – 3’ms’
200’g’ – 3’ms’
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| Pulse Shape |
Half Sine Optional - Sawtooth / Square wave / Trapezoidal Waveform |
| Shock Rate |
1-8 shocks/min |
1-8 shocks/min |
1-8 shocks/min |
1-8 shocks/min |
| Max Deviation of specimen from table centre |
30 mm |
30 mm |
30 mm |
30 mm |
| Machine Mass |
4200 kg |
4800 kg |
5600 Kg |
6600 Kg |
| Utilities required |
Plant air or bottled Nitrogen 6-8 bar 410V, 3 -phase 50 Hz |
| Safety |
Mains Input Over & Under Voltage, Phase drop, programmer pad change protection, over travel, Fail safe brake |
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