JET JTM-1254RVS Variable Speed Vertical Mill with ACU-RITE 203 DRO, X & Y Powerfeeds & Air Power Drawbar is a professional-grade 12" x 54" vertical milling machine engineered by JET for machinists and shops that demand durability, precision, and versatile performance. Combining a variable speed spindle range, integrated digital readout, dual-axis powerfeeds, and a pneumatic power drawbar, this heavy-duty mill delivers the control and efficiency required for producing high-quality components across a wide range of milling operations. Backed by the industry-leading JET Two Year Warranty, the JTM-1254RVS is built to perform in demanding production and job shop environments.

Key Features

• Adjustable gibs throughout for precise fit and consistent, repeatable movement
• Dual locks on all moveable surfaces for rigid workholding and enhanced accuracy
• Heavy-duty spindle brake for rapid stopping of the spindle, improving safety and cycle efficiency
• Precision bored and honed milling head ensures tight tolerances and long-term accuracy
• Precision hardened and ground ways and table for smooth travel and extended service life
• Three precision ground T-slots for secure, versatile workpiece and fixture clamping
• Three-stage power downfeed with automatic stop for controlled, hands-free drilling and boring cycles
• Two 115V outlets on the electrical box dedicated for Powerfeeds only
• Ongoing automatic lubrication for reduced maintenance and consistent machine longevity
• Quick nut spindle feed for faster, more convenient quill operation
• Exclusive JET casting design allows leveling without raising the machine off the floor
• Variable spindle speed range from 80 to 3,800 RPM to suit a broad variety of materials and operations
• Pneumatic (Air) Power Drawbar for faster, easier tool changes
• ACU-RITE 203 Digital Readout (DRO) included for precise axis positioning
• X & Y Powerfeeds included for automated, consistent table movement
• Available in R-8 spindle taper configuration

Specifications

• MPN: JT9-698111
• Style (Type): Variable Speed R8
• Spindle Taper: R-8
• Motor: 5HP, 230/460V, 3Ph
• Range of Spindle Speeds (RPM): 80 - 3,800
• Quill Diameter (In.): 4-1/8
• Spindle Travel (In.): 5
• Quill Down Feed Rates (IPR): .0015 / .003 / .008
• Collet Capacity: 1/8 - 1
• Max Distance Spindle to Table (In.): 23
• Distance Spindle to Column (Max.) (In.): 27-3/4
• Column Width (In.): 14-1/4
• Saddle Width (In.): 25-5/8
• Power Draw Bar: Pneumatic
• Overall Dimensions (L x W x H) (In.): 92-1/8 x 79-7/8 x 104-1/4
• Country of Origin: Taiwan
• Prop 65: Cancer and Reproductive Harm

Frequently Asked Questions

What spindle taper does the JET JTM-1254RVS use?

The JTM-1254RVS is configured with an R-8 spindle taper and accepts collets ranging from 1/8" to 1" in capacity, making it compatible with a wide selection of standard tooling used in professional milling applications.

What is the spindle speed range on this variable speed mill?

The JTM-1254RVS features a variable spindle speed range of 80 to 3,800 RPM, giving operators the flexibility to dial in the correct cutting speed for a broad variety of materials and milling operations without changing belt positions.

Does this mill include a digital readout and powerfeeds?

Yes. This package includes the ACU-RITE 203 Digital Readout (DRO) for precise positional feedback, along with X and Y Powerfeeds for automated, consistent table movement. Two 115V outlets are provided on the electrical box specifically for use with the Powerfeeds.

How does the pneumatic power drawbar benefit the user?

The pneumatic (air) power drawbar significantly speeds up tool changes by allowing the operator to release and secure tooling quickly using air pressure rather than manual wrenching, reducing downtime and improving overall workflow efficiency in production environments.