Oil Hydrostatic Linear Stages

HLS Hydrostatic Linear Stage

HLS Hydrostatic Linear Stage

ABTech’s oil hydrostatic linear stages are built for the most demanding applications. The oil hydrostatic fluid film provides high load capacity and extreme stiffness. This allows every stage to provide ultra-smooth motion, sub-micron accuracy, and absolute repeatability. These hydrostatic bearings have no contacting mechanical parts to wear or create drag, allowing for decades of reliable maintenance-free motion.

Our oil hydrostatic stages are commonly used as the core axis in a wide range of machining and grinding applications where medium to high loads are coupled with the need for smooth and repeatable motion. They are ideal as stand-alone units and/or multi-axis assemblies.

Configuration Flexibility

Precision motion comes in many forms and applications, each with its own set of pertinent specifications. The diversity in today’s applications creates many unique requirements, so providing configuration flexibility is integral to our design philosophy. All linear stages can be customized with a variety of options and accessories including motor drives, vacuum carriage top, high-resolution optical encoders, digital readout (DRO) displays, inspection-grade granite surface plates, and more.

Accurate, Repeatable, Smooth Motion

Similar to air bearings, Hydrostatic bearings provide significant advantages over mechanical bearings or other approaches to linear motion. Because they have no mechanical contacting parts to wear, or create drag, hydrostatic bearings are close to frictionless, providing ultra-smooth, repeatable and maintenance-free motion. Manufactured with tight geometric tolerances, our standard hydrostatic stages are able to deliver arcsecond pitch, roll and yaw.

Configuration Flexibility to Meet Your Specific Needs

Hydrostatic Pump Unit (HPU’s)

Motor Drives and Controls

Motor Drive Options

With proper selection and integration of high-performance brushless DC servo motors ABTech’s air bearing rotary tables provide ultra-smooth and precise rotary motion. With high torque, high performance motor drives, our motion experts will gather your specific requirements and work closely with our motor suppliers to create/select a motor drive that suits your specific application. Whether you need sub-micron position accuracy with minimal settle time and stringent following error specifications, high-speed constant motion, or a combination of both there is an ABTech rotary table that will meet your needs.

The motor drives are designed to accommodate a wide range of precision motion applications such as optical metrology; circular geometry gages; and micro machining with ultra-precision scanning, velocity control, speed regulation and precision indexing.

ABTech’s modular design approach facilitates multiple system configurations to optimize the price-for-performance required in your application. This approach allows the user to define the level of control desired for the most cost-effective solution. Our complete engineering services allow us to respond quickly to provide a solution to your O.E.M. requirements for ultra-precision rotary motion.

See What Our Customers are Saying

"We use 2 ABTech air-bearing spindles with tip/tilt and centering capability in our facility. These units are used for precision assembly and final metrology. We have never had an issue with either one, and the ABTech team is a great partner for us. We will be adding more systems as our young organization continues to grow".

Jayson Tierson

President, Vertex Optics

See What Our Customers are Saying

“Thanks a lot for your help [with remote technical support provided for the system installed at the South Pole]. Your rapid, informative correspondence was invaluable. Hopefully I won't be bothering you with any further questions, but it's good to know you're willing.”

Morgan Hedges

Post-Doctoral Research Associate, Princeton University

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