The Full Size PRSalpha CNC

ShopBot PRSalpha CNC

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PRSalpha? Let us know.

If you’re looking for a CNC solution for production that delivers high performance, high volume, speed and reliable power for all cutting tasks, ShopBot’s PRSalpha series of full-sized gantry tools will be your system of choice.

With enough production capability for a three-shift factory, ShopBot PRSalpha tools are our toughest, most sophisticated, gantry-based CNC routers. Using advanced technology for CNC cutting, drilling, carving and machining, the PRSalpha series tools deliver rapid transit speeds of 1800 inches per minute and cutting speeds of up to 600 inches per minute. Easy to configure and re-configure, learn and use, the PRSalpha CNC delivers affordable, full-production performance in digital fabrication of wood, plastic, aluminum, and other materials.

Traditional shop-size and larger.
ShopBot builds CNC gantry tools in many sizes to suit the varying needs of manufacturers: 96 x 48, 96 x 60, 120 x 60, 144 x 60. Give us a call to discuss your production needs. We’ll help you to choose the right tool to get the job done.

Compare PRS Specifications
Download a Brochure (pdf)

All Full Size Gantry Tools Include:

  • Tough precision linear bearings on the moving gantry and hardened steel rails for the X-axis.
  • Reliable rack-and-pinion power transmission on each axis.
  • Positional repeatability of +/- .002”.
  • Sealed industrial control box.
  • Z-zero touch-off plate and XYZ proximity switches.
  • Dust skirt ready to connect to your dust collector.
  • Advanced ShopBot developed and ShopBot supported Control System software runs your CNC.
  • Bundled with two powerful design programs to create CNC projects.
  • Fully-assembled gantry module ships along with steel and aluminum table components. The engineering of our structurally integrated table allows on-site assembly and the advantage of placement of the tool in work areas with limited accessibility – while still having a factory squared, aligned, and tested machining system. We also offer on-site set-up services, as well as training and production process consulting as options.
  • Unparalleled support for our user community with forums, production support services, training classes, and FREE technical support.
  • Two-year warranty.

PRSalpha Specifications

With enough production capability for a three-shift factory, ShopBot PRSalpha tools are our toughest, most sophisticated, gantry-based CNC routers. They reach rapid transit speeds of 1800 inches per minute and cutting speeds of up to 720 inches per minute. The PRSalpha series of full sized gantry tools deliver high performance, high efficiency production, as well as fast position and cutting.

  • Fast, closed-loop Vexta alphaStep motors fitted with low-backlash, tapered-hob gear heads on all three axes (two on the X-axis) – alphaStep system monitors motor shaft positions with feedback maintaining tight synchronicity between signal and motion.
  • Step resolution of .0004”.
  • Emergency stop disconnect switch in the control box with integrated and cabled remote emergency stop buttons.

ShopBot PRSalpha Dimensions and Prices (Length x Width x Plunge)

  48-48-8 96-48-8 96-60-8 120-60-8 144-60-8 Cutting and Movement Area Diagram
Price $17,982 $20,344 $21,415 $24,713 $28,322
Cut/Movement Area
(green outline at right)
57” x 49” x 8”
(1.45m x 1.25m x 0.2m)
105” x 49” x 8”
(2.67m x 1.24m x 0.2m
105” x 61” x 8”
(2.67m x 1.55m x .2m)
129” x 61” x 8”
(3.28m x 1.55m x .2m)
153” x 61” x 8”
(3.89m x 1.55m x .2m)
(black arrows at right)
L72” x W79”x H67”
(1.83m x 2.01m x 1.70m)
L120” x W79” x H67”
(3.05m x 2.01m x 1.70m)
L120” x W91” x H67”
(3.05m x 2.31m x 1.70m)
L144” x W91” x H67”
(3.66m x 2.31m x 1.70m)
L168” x W91” x H67”
(4.27m x 2.31m x 1.70m)
View computer requirements    PRSalpha also available in the ShopBot Buddy format

ShopBot PRSalpha CNC Systems with Accessories

We've put together some suggested basic systems of CNC Tool and Table, as well as accessories useful in getting you quickly into production with CNC.

See suggested systems

Custom Sizes and Special Applications

In addition to our standard size tools, we can build your PRSalpha ShopBot to any dimension up to 10' by 30' and with plunge depths up to 24 inches.  Dual Z options with two Z axes on the main gantry are available.  We also have considerable experience in adapting ShopBots to specialized production needs [see Manufacturing and Construction applications] and currently provide modified ShopBots and ShopBot Control systems to other manufacturers for use in specialty products.  Please check with us on design, pricing and delivery of custom products.

Before Placing Your Order

Electrical -- You will need to know about the electrical service to your shop before ordering because ShopBot Control Boxes and accessories such as routers/spindles and vacuum pumps are configured for specific types of service. [Basic electrical hook-ups for PRSalpha ShopBots (note these hookups are not for PRSstandard) see International Support, below, for PRSalpha hook-ups for other countries.] PRSalpha Control Boxes must be wired to your electrical service by a licensed electrician. PRSalpha control box is UL certified.

Router or Spindle -- Control Boxes are also configured for either router or spindle. So you will need to specify your choice at the time you order your ShopBot. Give us a call for help with this decision [and see Router vs Spindle].

Shipping -- ShopBots are shipped as four modules (Table, X rails, X car, Y-Z car) ready for straightforward set up. Shipments are crated and banded onto a single pallet and ShopBot will arrange shipment by truck to your shop or facility.

International -- We sell and ship ShopBots internationally and manufacture them configured to local requirements. Please see our International Support page where a number of issues related to international use, sales, shipping, installation, and support are reviewed.

ShopBot Price List

Click here to Download ShopBot's full price list in PDF format.
Click here for info on Leasing a ShopBot.


No computer degree is needed to run a ShopBot! Each new ShopBot includes design software packages selected and bundled for project designing and tool-pathing. If you are primarily working in sheet goods, want to do v-carvings, and/or new to CNC? You may want to start with VCarvePro ShopBot Edition. If you are primarily working in solids or blocks, already experienced with CAD, and/or have an engineering background? You may want to start with Fusion 360. These two powerful software packages include CAD/CAM to take your ideas to project designs to tool-pathing. The ShopBot Control System software that runs your CNC is also included.

We also offer software packages for use in signmaking, cabinet making and more. Aspire by Vectric is one of our most popular—great for designing and machining carved decorative panels and doors, custom millwork, moldings, signage, dimensional logos, jewelry, custom gifts and much more.

ShopBot Design Software Suite is compatible with many software programs, including: • AutoCAD • Rhino 3D • SketchU p • ArtCAM • Vector Art 3D • Cabinet Vision • EnRoute • KCDw • MasterCAM • MillWizard • OneCNC • Shape 3D • Vector CAD CAM • Visualmill • CabinetParts Pro • DeskProto • eCabinet System

Learn more about software.

Your Business Network


Digital fabrication and online communication — together they are playing an important role in reshaping manufacturing in the U.S. and around the world. The distributed manufacturing model, which brings on-demand production and the end user closer together, is also growing fast. ShopBot Tools is a leader in supporting these developments. Our free online community,, can connect you with business opportunities around the country and the globe.

We also support tech communities such as the grassroots Camp ShopBots and Maker Faires that meet around the country, and we supply tools and support to educational FabLabs and Techshops.

Free Technical Support

Whether you’re new to digital fabrication or a veteran user of CNC technology, ShopBot is here to support your efforts. We provide free telephone technical support 7 days a week from our headquarters in Durham, North Carolina. We also have a vibrant online community at, sharing tips and advice with other users of digital fabrication technology.

ShopBot PRSalpha Warranty

ShopBot warrants that the PRSalpha system will perform in substantial compliance with the instructions and documentation supplied. ShopBot further warrants that all components of the tool, except for those parts subject to normal wear (e.g. pinion gears, gear rack, springs), will be free from defects in material or workmanship for two years from the date of purchase. SELLER'S SOLE OBLIGATION AND YOUR EXCLUSIVE REMEDY under this Limited Warranty and, to the extent permitted by law, any warranty or condition implied by law, shall be the repair or replacement of parts, without charge, which are defective in material or workmanship and which have not been misused, carelessly handled, or miss-repaired by persons other than Seller. ShopBot reserves the right to use new or ShopBot remanufactured components for warranty replacement. Components repaired under warranty repairs will be returned to customer at ShopBot’s expense via surface mail. Overnight or Express shipping will be at the customer's expense. There are no warranties extending beyond the above warranties. All resold products constituting accessories and secondary components (such as, but not limited to, routers, spindles, vacuum pumps, etc) are subject to their own manufacturer’s warranties.

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Each new ShopBot tool comes bundled with two powerful software programs to create CNC projects.

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