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
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
Sine Monitor Analysis Response Tool
SMART tool
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The Sine Monitor Analysis Response (SMART) Tool is a powerful software utility available with all new APEX SL and APEX PRO Control/Analysis workstations. The SMART Tool not only provides the standard capabilities of a stand-alone sinusoidal oscillator, but also provides measurement and spectrum displays of the resulting vibration when driving the shaker. These features are extremely useful in establishing system confidence checks of the complete vibration test system, performing fixture and test specimen vibration surveys, troubleshooting system faults, and aiding in preventive maintenance.
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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).
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Product
Instrumentation
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Unholtz-Dickie designs and manufactures a variety of transducer signal conditioners, accelerometers, remote charge preamplifiers, vibration monitors & limiters, transducer testers, buffer amplifiers and other special purpose instrumentation accessories for vibration testing control and measurement.
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Product
Electrodynamic Shaker Systems
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A test machine that uses magnets and electricity to shake products.
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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
Acquire, Analyze, Import Vibration Data
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Reproducing actual field vibration data is a key feature of the APEX Series Vibration Controllers! It provides four distinct and important choices for analyzing and importing data for creation of random, transient shock, and time replication acceleration control (TRAC) tests. Collecting data and importing the information into the controller is accomplished by using the Signal Analyze/Transient Capture and Data Acquisition modes, or by importing stored ASCII file data. The Import Data Manger provides guidance and extensive editing options for optimizing the new test. The resulting test reference (time or frequency spectrum) can then be performed at the vibration test system.
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Product
Long Stroke Thrusters
Seismic Test Systems
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Unholtz-Dickie offers the world’s first all air-cooled, electrodynamic long-stroke testers for telecommunications, earthquake simulation, and transportation applications. Up to 2,300 lbs (1,040 kg) of payload can be supported on a 48x48 inch (1.2 x 1.2 m) footprint on either the slip plate of the horizontal LS12H thruster or the bearing-guided head expander of the vertical LS12V unit. Both are driven by the highly reliable SAI120 SiC amplifier with an integrated switching cabinet for either vertical or horizontal testing. And because it’s an electrodynamic shaker, relatively high frequencies of up to 1,000 Hz can be achieved.
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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
Slip Tables
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Unholtz-Dickie offers three configurations for fully integrated slip table assemblies for vibration testing; the ST Series, HST Series and the CSTA Series. Horizontal slip tables are used for three-axis sequential testing (x, y, z axes) or used when it is necessary to maintain product positioning with respect to gravity.
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Product
Word Report Generator
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The Automatic Report Generating Utility is now included with each new APEX SL or APEX PRO Vibration Control System. This highly desirable feature provides an automatically generated test report in an MS Word document.
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Product
Long Stroke Thrusters
LS-Series
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The LS Series Long Stroke Thruster Test Systems are highly regarded as the industry standard for long stroke transient testing. This equipment is used in the design and production test of automotive airbag sensors by leading suppliers of automotive airbags and associative control modules.
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Product
Electrodynamic Shakers
H-Series
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The H-Series provides an intermediate force range of vibration test systems consisting of the SC Series Class D power amplifier with integrated DC field supply, H560B electrodynamic shaker and a remote cooling blower. Systems are provided as complete packages including EMI shielded console with 3-phase line filtering, interface cabling, integrated safety interlocks, and full featured interface panel for the power amplifier. All systems are direct coupled for maximum rated performance and require no transformer reconnections or switching circuits.
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Product
Electrodynamic Shakers (Highest Force Air Cooled System)
K-Series
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K-Series high performance electrodynamic shaker systems offer 100% air cooling, 3 inch (76 mm) stroke, and feature an output force up to 18,000 pounds (80.1 kN). They are available with a 16 inch (445 mm) or 24 inch (654 mm) armature outer bolt circle, allowing a variety of package sizes and fixture configurations.
