VAS II Series Pneumatic Vertical Shock Test System
The Modern Replacement Standard for Legacy AVEX & AVCO Shock Machines
Accelerate your product development and guarantee real-world durability with the VAS II Series Pneumatic Shock and Collision Test System. Engineered with advanced automation, this high-performance system delivers precise, repeatable mechanical shock testing for half-sine, terminal-peak sawtooth, and trapezoidal wave profiles.
As older testing infrastructure ages, lab managers worldwide are faced with the challenge of replacing discontinued industry workhorses. If you are looking to upgrade or replace a legacy AVEX or AVCO shock machine, the VAS II Series offers a seamless transition. It delivers the exact same critical wave profiles you rely on, but with modern windows-based automation, tighter repeatability, and enhanced operator safety.
Engineered for Performance. Built for Reliability.
Superior Structural Design
Aerospace-Grade Shock Table: Crafted from premium aluminum to ensure exceptional structural strength, uniform energy distribution, and minimal waveform distortion.
Precise Alignment Control: Guided by a specialized vertical shaft system that entirely eliminates unwanted table rotation or multi-axis deviation during high-impact drops.
Advanced Engineering & Safety
Precision Guide Shaft & Bearings: Features a heavily chromed guide shaft and low-friction sliding bearings to drastically reduce wear and tear, extending the machine's operational lifespan.
Integrated Safety Locks: Built-in safety locking mechanisms on the guide shaft allow operators to securely mount samples and swap waveform generators quickly and safely.
Anti-Secondary Shock Brake Device: Equipped with a rapid-response air-to-hydraulic braking system that instantly clamps and locks the table post-impact, completely eliminating secondary rebounds for flawless single-shock data.
Modern Control vs. Legacy Systems
Windows-Based ASK01 Control System: Unlike the manual or legacy console controls found on older AVCO or AVEX models, the VAS II features a highly intuitive user interface. It seamlessly integrates with modern data acquisition and measurement software, enabling fully automated, hands-off pneumatic testing.
Smooth Hydraulic Lifting: A high-frequency cylinder lifting system paired with precise displacement sensors guarantees continuous, smooth travel for unmatched shock repeatability.
Zero-Foundation Facility Integration
Integrated Shock-Absorption Cushion: Built on a heavy-duty steel base utilizing advanced air springs and dampers. The system completely isolates high-energy shock waves from your facility floor—meaning no expensive, specialized concrete foundations are required.
Versatile Waveform Generation
Easily match historical testing data and adhere to diverse international testing standards. By quickly swapping the waveform generators, the VAS II Series flawlessly executes the same core profiles established by legacy industry standards:
Half-Sine Waves
Trapezoidal Waves
Terminal-Peak Sawtooth Waves
Click to enlarge
Looking to Replace an AVEX or AVCO Shock Tester?
Don't let discontinued parts and lack of support stall your testing lab. The VAS II Series is designed to slot into your existing testing workflows while upgrading your data accuracy. Have unique testing constraints? Custom table sizes, expanded weight capacities, and specialized performance capabilities are available.
Contact our engineering team to discuss retrofitting or replacing your legacy equipment.

