JET JTM-1254RVS Variable Speed Vertical Mill w/ACU-RITE 203 3X (Q) DRO & X Powerfeed is a professional-grade 12" x 54" vertical milling machine engineered by JET for machinists and manufacturers who demand precision, durability, and versatility in a heavy-duty milling platform. Equipped with a variable speed R-8 spindle, an ACU-RITE 203 3-axis quill DRO, and X-axis powerfeed, this mill delivers exceptional accuracy and control across a wide range of machining operations. Backed by the industry-leading JET Two Year Warranty, it represents a long-term investment in reliable, high-output performance.

Key Features

• Adjustable gibs throughout for precise fit and reduced play across all axes
• Dual locks on all moveable surfaces ensure rigid workholding and repeatable setups
• Heavy-duty spindle brake for rapid stopping of the spindle, improving safety and workflow efficiency
• Precision bored and honed milling head delivers consistent accuracy and long-term reliability
• Precision hardened and ground ways and table provide a stable, wear-resistant machining surface
• Three precision ground T-slots accommodate a wide variety of workholding fixtures and tooling
• Three-stage power downfeed with automatic stop for controlled, repeatable depth drilling and boring operations
• Two 115V outlets on the electrical box dedicated for powerfeeds only, keeping wiring clean and organized
• Ongoing automatic lubrication system for sustained performance and reduced maintenance downtime
• Quick nut spindle feed for fast, convenient manual quill adjustment
• JET exclusive new casting design simplifies leveling without requiring the machine to be raised off the floor
• Available in R-8 spindle taper, compatible with the industry-standard collet system
• Variable spindle speed range from 80 to 3,800 RPM for versatility across materials and cutting tools
• ACU-RITE 203 3-axis quill DRO included for precise positional readout during all milling operations
• X-axis powerfeed included for smooth, consistent table travel and reduced operator fatigue

Specifications

• MPN: JT9-698120
• Stock Number: 698120
• Style (Type): Variable Speed R8
• Motor: 5HP, 230/460V, 3Ph
• Spindle Taper: R-8
• Range of Spindle Speeds (RPM): 80 - 3,800
• Spindle Travel (In.): 5
• Quill Diameter (In.): 4-1/8
• Quill Down Feed Rates (IPR): .0015 / .003 / .008
• Collet Capacity: 1/8 - 1
• Number of Axis: 3 (Quill)
• Powerfeed: X-Axis
• 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
• 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 uses an R-8 spindle taper, one of the most widely used standards in vertical milling. It accepts collets ranging from 1/8" to 1", providing broad compatibility with standard end mills, boring heads, and other R-8 tooling.

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

The JTM-1254RVS offers a variable spindle speed range of 80 to 3,800 RPM, allowing the operator to dial in the appropriate cutting speed for a wide variety of materials including steel, aluminum, brass, and plastics.

What are the available quill downfeed rates?

The three-stage power downfeed system provides three selectable feed rates: .0015, .003, and .008 inches per revolution (IPR). An automatic stop feature is included for repeatable depth control during drilling and boring operations.

What DRO and powerfeed are included with this mill?

This mill comes equipped with an ACU-RITE 203 3-axis quill DRO for precise positional readout across all three axes, and an X-axis powerfeed for smooth, consistent table travel. Two dedicated 115V outlets on the electrical box are provided for powerfeed connections.