Manually-Operated UniSlide® A15 Series

Free Sliding Model – The simplest UniSlide Assembly where the slider is moved by hand. This features a linear dovetail bearing for smooth motion.

Screw Drive Models – Slide movement is controlled by a lead screw. There are several different diameter lead screws available for the A15 Series in 1/4" and 7 mm. Each have different advance ratings.

Graduated Knob Models – The position of the payload is measured by combining the readings from the linear scale and engraved knob or drum dial. Measures position from 0.001" or 0.01 mm.

Scale and Vernier Screw Drive Models – Includes a precision English or Metric scale on the base and offset vernier on the slider. Measures position from 0.001" or 0.05 mm.

Rapid Advance Models – Are for quickly repositioning the slider by uncoupling the drive system. This saves time when the slider will be moved frequently or when the base length is long. Each have varying lengths of fine adjustment. The limited fine adjust models use a clamping-like drive. The unlimited fine adjust models use a lead screw and pinion design. Rapid Advance models are not recommended for vertical (Z axis) mounting.

Rapid Advance with Limited Fine Adjust – Have 1/2" of fine pitch adjustment control.

Rapid Advance with Scale and Vernier – The limited fine adjust is also available with an English or Metric scale and vernier.

Rapid Advance with Micrometer Head – The limited fine adjustment is made with a micrometer calibrated to 0.001".(0.01 mm metric available as s special order. Contact Velmex.) Configuration available on A15, A25 and A40 Series.

Left-Right Screw Drive Models – Use two carriages (sliders) and have a common lead screw machined with a left thread on one half and a right thread on the other half. The slides simultaneously move toward or away from each other. Use for applications where two objects must share a common axis of movement. Dual Screw models also available with two screws contolled independently with two knobs.

Adapter Plates

XY Plates – allow two UniSlides to be converted into an XY motion system. For more specifics and to see the adapter plates in use on a Velmex stage visit the UniSlide Adapters page.

A1500XY Adapter Plate – To mount two A15 Series UniSlide in XY.

XZ Plates – Allow UniSlide assemblies to be positioned vertically facing in any of four directions. For more specifics and to see the adapter plates in use on a Velmex stage visit the UniSlide Adapters page.

A1500XZ Adapter Plate– To mount an A15 Series UniSlide to another A15 Series in XZ.

XZ Brackets – allow UniSlide assemblies to be positioned vertically, facing in any of four directions and perpendicular to the X or Y plane. For more specifics and to see the brackets in use on a Velmex stage visit the UniSlide Adapters page.

A2501XZ Adapter Bracket – To mount an A25 Series UniSlide to another A25 Series (6"- 9") or to an A15 Series (6"- 9") in XZ. (The A25 would be the base horizontal stage. The other stage would be mounted vertically.)
B2503XZ Adapter Bracket –To mount an A25 Series UniSlide to another A25 Series (over 9") or to an A15 Series (over 9") in XZ. (The A25 would be the base horizontal stage.)

Rotary Table Adapter Plates –To mount Velmex Rotary Tables to UniSlide Assemblies either in horizontal or vertical positions.

B5990TXZ-BK Adapter Plate – To mount two B5990TS Rotary Tables at right angles to each other or to mount a B5990TS to any A Series UniSlide.

Platform Shelf – A right angled bracket designed to be used with UniSlide® Elevating Tables. However, they also can be used with vertically mounted UniSlide Assemblies to support a payload. The shelf can be inverted depending on the motion required.

For more specifics and to see the shelf in use on a Velmex stage visit the UniSlide Adapters page.

Slider Lengths – Varying length carriages (sliders) can be added to all models of UniSlide Assemblies. Choosing a longer slider reduces the standard travel distance. 1.5" is the standard slider on the A15 Series. Optional lengths available for the A15 are 2" or 3".

Alternative Knobs – A variety of knob styles can be substitute for the standard knob available on the particular style/model of UniSlide Assembly.

• Small diameter (5/8") Rogan knob for some A15, A25, A40 Models and Turntables
• Knobs with cranks including:
    – Plain knob (1 3/4" diameter)
    – Drum dial
    – Engraved knob 1 3/4" diameter)
• Reduced diameter graduated knobs for A15 Graduate Knob models

Locks – There are a number ways to lock the carriage (slider) position on UniSlides. They include:
(For details see Motion-Locks page.)

Thumbscrew-on-Lead-Screw Lock (-TL) – An easy method to fix the slider utilizing a simple thumbscrew. The thumbscrew lock increases the overall length of the UniSlide base. This lock type is not available on Rapid Advance models.

Traveling Slider Lock (-TSL) – This lock attaches to the slider to lock the carriage in place. Available on Free Sliding, Screw Motion and Graduated Knob models only.

Slider Lock (-SLR or -SLL) – This lock is mounted at the mid-point on the base and is tightened to prevent slider movement. This is only available on slides where the carriage (slide) length is greater than one-half the base length. It can be mounted on the right (-SLR) or left (-SLL) of the base.

Revolution Counter (-RC) – A mechanical revolution counter provides a convenient 1/10 revolution increment count. Readouts in either 0.01" or 0.1 mm. Counts precisely with 0.100" or 1 mm lead screws. Other screws require additional calculations. For details see UniSlide Counter page.

Left-Right Screw Motion (-LR) – This configuration is very useful for applications where two objects must share a common axis of movement. This assembly incorporates two carriages driven by a single right- and left-hand threaded lead screw. When the knob is turned, the carriages simultaneously move toward or away from each other.

Two Independent Carriages (-DS) – a variation on the left-right screw motion UniSlide is one containing two lead screws with control knobs at both ends of the assembly. Each lead screw and carriage operates independently.

Wrench - Retainer Nut – Velmex has a custom-designed wrench to easily adjust and remove the threaded retainer nut on UniSlides. When needed, this makes removing and changing the lead screw simple and easy. The wrench is designed for the smaller diameter lead screws (1/4" or 7 mm - A15 Series and some A25) with the split Delrin® thrust bearings and the threaded retainer nut. Note: larger diameter lead screws (3/8", 1/2", 10 mm and 14 mm) use steel bearings and a snap ring retainer.

Finishes – Standard UniSlide Assemblies have a brushed aluminum finish. Optional finishes are available at an additional charge and include:

• Black Anodizing, additional colors also available. (pictured)
• Hard Coat Anodized and dyed black
• Electroless Nickel Plated
• Specialized coatings for specific applications such as food processing or medical applications
• Modifications for use in a vacuum environment