JET JTM-1254RVS Variable Speed Vertical Mill w/ACU-RITE 203 3X (K) DRO X Y & Z Powerfeeds by JET is a professional-grade 12" x 54" vertical milling machine engineered for demanding machining environments where precision, durability, and operational efficiency are non-negotiable. Combining variable spindle speed control, a robust 5HP motor, and an integrated ACU-RITE 203 3-axis digital readout with X, Y, and Z powerfeeds, this mill delivers the accuracy and versatility required for producing high-quality components across a wide range of milling operations.

Key Features

• Adjustable gibs throughout for precise fit and smooth movement across all axes
• Dual locks on all moveable surfaces provide rigid workholding and eliminate unwanted movement during cuts
• Heavy-duty spindle brake enables rapid stopping of the spindle for safer and faster operation
• Precision bored and honed milling head ensures exceptional spindle accuracy and long-term reliability
• Precision hardened and ground ways and table deliver consistent, repeatable accuracy over the life of the machine
• Three precision ground T-slots accommodate a wide variety of workholding fixtures and accessories
• Three-stage power downfeed with automatic stop allows controlled, hands-free quill feeding at selectable rates
• Two 115V outlets on electrical box dedicated for Powerfeeds only, keeping wiring clean and organized
• Variable spindle speed range of 80 - 3,800 RPM supports a broad spectrum of materials and tooling requirements
• R-8 spindle taper with 1/8" - 1" collet capacity for broad tooling compatibility
• 5" spindle travel and a 4-1/8" quill diameter provide substantial reach and rigidity during deep or demanding cuts
• 5HP, 230/460V, 3-phase motor delivers ample power for heavy-duty milling applications
• ACU-RITE 203 3-axis (X, Y & Z) digital readout with knee axis (K) for real-time, precise position feedback
• Backed by the industry-leading JET Two Year Warranty

Specifications

• MPN: JT9-698118
• Stock Number: 698118
• Style (Type): Variable Speed R8
• Motor: 5HP, 230/460V, 3Ph
• Range of Spindle Speeds (RPM): 80 - 3,800
• Spindle Taper: R-8
• Collet Capacity: 1/8 - 1
• Spindle Travel (In.): 5
• Quill Diameter (In.): 4-1/8
• Quill Down Feed Rates (IPR): .0015 / .003 / .008
• Number of Axis: 3 (Knee)
• Column Width (In.): 14-1/4
• Distance Spindle to Column (Max.) (In.): 27-3/4
• Max Distance Spindle to Table (In.): 23
• Saddle Width (In.): 25-5/8
• 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, and what collet sizes does it accept?

The JTM-1254RVS uses an R-8 spindle taper and accepts collets ranging from 1/8" to 1", making it compatible with a wide variety of standard milling tooling and accessories.

What are the available quill down feed rates on this mill?

The three-stage power downfeed system offers selectable feed rates of .0015, .003, and .008 inches per revolution (IPR), with an automatic stop feature for repeatable depth control during drilling and boring operations.

What is the spindle speed range, and how is speed controlled on this machine?

The spindle speed is variable and ranges from 80 to 3,800 RPM, allowing the operator to dial in the optimal cutting speed for different materials and tooling without changing belts or gears.

What are the two 115V outlets on the electrical box used for?

The two 115V outlets located on the electrical box are dedicated exclusively for use with Powerfeeds, providing convenient, integrated power connections for the X, Y, and Z axis powerfeed units included with this machine.