The Benchmark AVEX SM-110 Shock Machine Impact Tester, 200 lbs is powered by compressed air with pressure ranging from 100 to 125 psi. The following describes a typical drop cycle: Compressed air is introduced to the lower side of the piston, raising the carriage (specimen attachment plate) to a pre-selected height. Once this is reached, the holding brake is applied. The lift air is dumped and compressed air is introduced to the upper side of the piston to a desired charge pressure.
When this pressure is reached, the holding brake is released. The carriage is then driven downward by the charge pressure, impacting on a pulse generator mounted on the anvil. Upon impact, the brake is actuated, holding the carriage in a rebound position and preventing secondary impact. Simultaneously a data capture system may be triggered for recording the shock pulse.
The base assembly functions as an inertial mass and reacts with the falling carriage to generate a shock pulse. The assembly is made of high-strength reinforced concrete, encased in a steel jacket, and is supported on four air mounts. It supports a carriage and guide rod, and contains a pneumatic cylinder assembly, an electronic- pneumatic control system, and a control panel. The machine is shipped completely assembled.
Benchmark AVEX SM-110 Features:
- Keypad Entry of Test Parameters (with 12 character alphanumeric display)
- Shock Testing from 3g’s to 30,000g’s
- Test Specimen Weights Up to 1,000 Pounds (453.59 kg)
- Shock Durations from 0.012ms to 100ms
- Single or multiple drop cycles at a rate of up to 8 cycles per minute
- Compliance with MIL-STD-202, MIL-STD-750, MIL-STD-810 and MIL-STD-883
- 3 Shock Pulse Generators: Half Sine, Sawtooth, and Square Wave