Motor-Driven UniSlide® MA25 Series
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CAD Drawings
The MA25 Series UniSlide stage has a body width of 2.5 inches, slider length of 2.5 inches carrying a 15 lbs. horizontal load. The MA25 can travel up to 20.5" with the 2.5" slider/carriage. The MA25 Series UniSlide is available in 7 lead screw pitches. Recommended step rate is 1000/steps per second.
MA25 Series UniSlides are comprised of an aluminum alloy extruded dovetail base with 60 degree opposing V-type ways. An aluminum alloy carriage that runs in the dovetail ways of the base. MA25 lead screws are constrained and supported with pre-loaded Delrin® thrust bearings, which have pre-loaded ball bearings. The lead screw drive nut is a tension adjustable nut made of Delrin providing low friction, and minimal backlash.
The MA25 Series is part of 5 motorized UniSlide Series. Others are MA15, MA40, MA60, MB90. There is also a manual version - the A25 Series.
UniSlide Specifications – Motor-Driven Assemblies
Factors such as size of the motor, size of the payload, travel distance, mounting direction/plane, etc. effect the actual capability of any assembly. Please contact Velmex Application Engineers to configure a system that will meet your exact requirements.
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UniSlide® MA25 Series#&8224; | |
Travel Distance‡ | 0.5" - 24.5" | 1.27 – 52.07 cm |
Base Length | 4" - 24" | 10.16 – 60.96 cm |
Slider Length | 2.5" | 6.35 cm |
Weight | 1.18 – 4.4 lbs. | .82 – 2 kg. |
Height** | 0.81" | 2.06 cm |
Width | 2.5" | 6.35 cm |
Maximum Horizontal Load | 15 lbs. | 6.8 kg. |
Load Normal (LN)* | 10 lbs. | 4.54 kg. |
Load Thrust (LT)* | 7.5 lbs. | 3.40 kg. |
Cantilever Side (LCS)* | 10 lb-in | 1.13 N-m |
Cantilever Inline (LCI)* | 20 lb-in | 2.26 N-m |
† Motors sold separately.
* Normal Operating Loads are less than the maximum.
** Deeper "B" base configurations available.
‡ Standard travel distances available are in 3" increments.
Repeatability | 0.00015" (4 microns) typical |
Straight line accuracy | Bow - 0.002" per foot; Run Out - 0.001" per foot; Twist - 1 milliradian per foot |
Screw lead accuracy | Standard Lead Screw: 0.007"/10" Precision Lead Screw: 0.0015"/10" or better available. Consult factory. |
Operating temperature | 0 to 180° F (-18 to 82° C) |
Properties of Velmex Stages | Information on stage composition, tolerances, wear and design for specialty applications. |
Lead Screws Available for MA25 Series
Basic Dimensions for MA25 Series UniSlide Assemblies
UniSlide Configurations
The basic linear UniSlide is a 1-axis stage. UniSlides can be combined for multiple axes in a wide range of lengths and payload capacities. See Examples for images of various multi-axis UniSlides and combinations that include other Velmex stages.
Options/Accessories
An array of options and accessories is available for the MA25 Series UniSlide Assemblies
Adapter Plates |
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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. |
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A2500XY Adapter Plate – To mount a MA25 Series UniSlide to another MA25 Series or to a MA15 Series in XY. (The MA25 would be the base stage.) |
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A4000XY Adapter Plate – To mount a MA40 Series UniSlide to another AM40 Series or to a MA25 Series in XY. (The MA40 would be the base stage.) |
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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. |
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A2500XZ Adapter Plate – To mount a MA25 Series UniSlide to another MA25 Series (or to a MA15 in XZ. (The MA25 would be the base horizontal stage.) |
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A4000XZ Adapter Plate – To mount a MA40 Series UniSlide or a MA25 Series vertically to another MA40 Series in XZ. (The MA40 would be the base horizontal stage.) |
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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. |
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A2501XZ Adapter Bracket – To mount a MA25 Series UniSlide to another MA25 Series (6"- 9") or to an A15 Series (6"- 9") in XZ. (The MA25 would be the base horizontal stage. The other stage would be mounted vertically.) |
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A4001XZ Adapter Bracket – To mount a MA40 Series UniSlide (6"- 9") or a MA25 Series (6"- 9") vertically to another MA40 Series in XZ. (The MA40 would be the upper horizontal stage.) Can also mount two B4800TS Rotary Tables at right angles. |
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Rotary Table Adapter Plates –To mount Velmex Rotary Tables to UniSlide Assemblies either in horizontal or vertical positions. |
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B5990TXZ-BK Adapter Plate – To mount two B5990TS Rotary Tables at right angles to each other or to mount a B5990TS to any MA Series UniSlide. |
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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. |
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Slider Lengths – Varying length carriages (sliders) can be added to all models of UniSlide Assemblies. Choosing a longer slider reduces the standard travel distance. 2.5" is the standard slider on the MA25 Series. Optional lengths available for the MA25 are 3" or 4". |
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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. |
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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. |
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Limit Switches – Outboard adjustable and fixed end-of-travel limit switches are available as an option. |
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Outboard Adjustable Limit Switches – Mounted on the side rib of Velmex UniSlide Assemblies, these switches can be used to stop travel, provide more stops than the standard two, over-travel a stop point, change speed or be active in only one direction. |
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Way Covers (-WC) – Protect the slider and dovetail base from dust, dirt and grit that could hamper the efficient operation of the slide. Way covers increase slider height and reduce the travel length of linear UniSlide stages. Not available on Motorized Series MA15 Assemblies. |
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Finishes – Standard UniSlide Assemblies have a brushed aluminum finish. Optional finishes are available at an additional charge and include: |
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• Black Anodizing, additional colors also available. (pictured) |
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Encoders and VRO™ Encoder Readout – For a high resolution position readout an encoder and Velmex's VRO encoder readout can be mounted to most linear UniSlide assemblies. An encoder, mounted directly to the slider gives a true and accurate reading eliminating lead screw and backlash errors. (Not available on all UniSlide models.) SEE: Velmex Controls on the Encoders and the VRO Readout for additional details. |
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Motorized / Manual Operation– It is possible, using a double shaft motor, to produce a Velmex stage that can be manually operated or motor-driven. A shaft extension accommodates the either a Rogan or standard aluminum knob. |
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Motors – A variety of motors are available to power Velmex UniSlides, most popular of which is the DC step motor. Gear motors, servo motors and high resolution step motors in both AC and DC can run Velmex UniSlides. SEE: Velmex Controls on the Motors for additional details.
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VXM™ Controller – Step motors coupled with a motor controller like the Velmex VXM are a cost effective solution for accurate speed and precise incremental positioning. SEE: Velmex Controls on the VXM Controller for additional details. |
Velmex offers a multitude of options and accessories for all its products. Usually an option or an accessory will address your requirements. When it doesn't, we can make custom modifications, including:
• Additional holes or slots. (A drawing is required.)
• Intermediate plates to mount your payload
• Special or in between lengths of the dovetail base
• Lead screw shaft extensions
• Choice of drive nut materials, including brass and Vespel
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