The Qualmark OVS-2 is an Overdrive Vibration System that augments HALT/HASS chambers with six degrees of freedom (6DoF) repetitive-shock vibration across a 10 Hz to 10,000 Hz frequency range. It combines synchronized thermal cycling from −70°C to +130°C (with extended options to +250°C) and simultaneous high-level vibration to accelerate identification of design flaws and failure modes in product qualification testing.
Technical Specifications
Vibration Performance
• Frequency Range: 10 Hz to 10,000 Hz
• Acceleration: Minimum 35 Gs (bare table); typically 5–75 gRMS (bare table); >100 gRMS available on special order
• Actuators: 5 lubricant-free actuators (OVS-2); 8 actuators (OVS-2.5); 12 actuators (larger systems)
• Vibration Table: xLF2 Vibration Table with PSD Management
• Table Capacity: 100 lbs (OVS-2); 320 lbs (OVS-2.5); 600 lbs (larger systems)
• Table Size: 24″ × 24″ (OVS-2); 30″ × 30″ (OVS-2.5); custom sizes 18″ × 18″ to 48″ × 100″
Thermal Performance
• Temperature Range: −70°C to +130°C standard (−80°C to +170°C and −100°C to +200°C available; up to +250°C with high-temperature option)
• Thermal Ramp Rate: 45°C/min to 100°C/min average; 90–100°C/min with liquid nitrogen cooling
• Heating: Open-element nichrome heating
• Cooling: Liquid nitrogen cooling available
Chamber Specifications (OVS-2)
• Work Space: 27″w × 27″d × 19.5″h
• Internal Dimensions: 24″w × 30″d × 36″h
Chamber Specifications (OVS-2.5)
• Work Space (upper table): 44″w × 45″d × 25″h
• Work Space (lower table): 44″w × 45″d × 35″h
• Chamber Size: 35″L × 36″W × 36″H
• Chamber Volume: 26.25 cu.ft.
• Outer Dimensions: Approximately 76″L × 50″W × 90″H
Electrical Requirements
• OVS-2: 208V, 230V (1Φ) 50/60 Hz, 70A service rating; 380V–480V (3Φ) 50/60 Hz, 25A service rating; 480V 3Ph 60 Hz, 60A
• OVS-2.5: 380V–480V (3Φ) 50/60 Hz, 80A service rating; 480V 3Ph 50–60 Hz, 70 FLA; 460V 3Ph 60 Hz
– Key Features
• Six-axis simultaneous vibration and thermal stress testing
• Lubricant-free actuators for maintenance-free operation
• Scalable configurations from compact bench-top to large multi-axis systems
• Liquid nitrogen cooling option for rapid thermal cycling
– Typical Applications
Product reliability qualification, design validation under combined thermal and vibration stress, failure mode acceleration in manufacturing environments.
– Compatibility & Integration
Designed to integrate with existing Qualmark HALT/HASS chamber infrastructure.
