Unholtz-Dickie Corporation
The company is comprised of engineers driven by a commitment to build the most advanced vibration test systems in the world. This has evolved into an organization that leads the Vibration Test Industry not only in terms of product innovation & development, but in product performance, reliability, and technical service and support.
- (310) 347-4120
(310) 316-0275 - (203) 265-2690
- info@udco.com
- 6 Brookside Drive
Wallingford, CT 06492
United States of America
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Product
Replacement Power Amplifiers
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Unholtz-Dickie offers a full line of high-performance Class D switching power amplifiers. These amplifiers, used in UD’s new shaker systems, are offered as replacements for older, water-cooled vacuum tube amplifiers or bipolar transistor amplifiers.
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Product
Slip Table Assembly
ST Series
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The ST Series Slip Table Assembly is one of three base configurations offered by Unholtz-Dickie for its vibration test systems. It is ideally suited for sequential 3-axis test capability with minimized cross axis response; for testing heavy, oversized, or non-symmetrical loads; and for products where orientation with respect to gravity is necessary.
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Product
Electrodynamic Shakers
S-Series
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The S-Series Vibration Test Systems cover a wide range of force output [300 to 6,000 lbf (1.3 - 26.7 kN)] in support of small to moderately large payloads. The S-Series shakers are supplied with SC Series power amplifiers, featuring ultra-rugged Silicon Carbide MOSFET output transistors.
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Product
Long Stroke Thrusters
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UD Long Stroke Thruster Systems are highly regarded as the industry standard for long stroke transient testing featuring large displacements from 6 to 24 inches (152 - 610 mm). This equipment is used in the design and production test of automotive airbag sensors by leading suppliers of automotive airbags and associative control modules. A specially configured 12 inch LS Thruster is available and used primarily by Telecommunications Companies for earthquake simulation and transportation replication applications.
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Product
Head Expanders
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Unholtz-Dickie offers a wide range of head expanders and head plates to maximize the versatility of any electrodynamic shaker. The head expanders are manufactured from light-weight magnesium alloys, providing high strength-to-weight ratio.
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Product
Electrodynamic Shaker Systems
High Frequency Vibration Testing
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Typical electrodynamic shakers have a usable frequency range up to 2,000-3,000 Hz. For higher frequency applications, UD engineers have developed two different shaker systems optimized for sine & random vibration tests up to 5,000+ Hz. and extreme SRS shock events out to 10,000 Hz.!
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Product
Apex Series Calibration Kit
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The APEX Series Calibration Kit provides calibration personnel the ability to re-certify the calibration of the APEX SL or APEX PRO control systems in-house. A simple Windows based program and an RS232 digital interface to a Keithley multi-meter, goes through system checks and verifications, and provides a detailed printed report of pass/fail, actual and expected values, and tolerances for each parameter checked.
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Product
Transducer Calibrator Systems
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Unholtz-Dickie Transducer Calibration Systems have earned their place in industry as the standard for calibrating accelerometers and velocity transducers. The Model 680C is UD's latest generation of an automated transducer calibration system, utilizing the expanded features of the i5 based APEX SL-C Windows vibration control system.
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Product
Electrodynamic Shakers
R-Series
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The R-Series vibration test systems are designed to provide reliable performance for medium and high force applications. The R-Series Shaker Armature incorporates a multi-ribbed design, which provides maximum stiffness and minimum weight, resulting in a high acceleration to specimen weight ratio and impressive acceleration and frequency performance.
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Product
Head Expanders
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Unholtz-Dickie offers a wide range of head expanders and head plates to maximize the versatility of any electrodynamic shaker. The head expanders are manufactured from light-weight magnesium alloys, providing high strength-to-weight ratio.
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Product
Electrodynamic Shaker Systems
Model T4000 / T5000 / T5500 Series
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The T4000/T5000/T5500 Series of vibration test systems provide extreme test level requirements. These systems are used in a variety of industries requiring high force output, including satellite, communication, and space launch vibration and PYRO shock applications.
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Product
Head Expanders
Structure Guided
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To test large, heavy packages, the Guided Head Expanders provide additional restraints and load support to handle tough transportation and other challenging test profiles.
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Product
Slip Table Assembly
CSTA Series
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Unholtz-Dickie introduced the Combined Slip Table Assembly (CSTA) in the late 1960''s to meet the demand for positive mechanical alignment between the shaker and its companion horizontal slip table. The challenge was to achieve this positive, permanent alignment feature without requiring an expensive seismic mass in the vibration lab floor. The original CSTA design has been continuously improved over the years and has now become the industry standard for permanently aligned, integral reaction mass slip tables.
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Product
Hybrid Slip Table Assemblies
HST
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UD’s HST Series features a highly damped, rigid reinforced concrete-filled base, permanent positive mechanical alignment, and our exclusive Integrated Guidance and Isolation System (IGIS).
