JET JTM-4VS Mill with Newall DP700 DRO, X-Axis Powerfeed, and Power Draw Bar is a professional-grade vertical milling machine from JET, engineered for machinists and production shops demanding precision, durability, and versatile performance. Built on the Certified Meehanite casting process, this variable speed mill delivers consistent, reliable operation across a wide spindle speed range - from 60 to 4,200 RPM - making it equally capable of heavy stock removal and fine finish work. The inclusion of a Newall DP700 digital readout, pneumatic power draw bar, and X-axis powerfeed transforms this machine into a highly productive, operator-friendly milling solution.

Key Features

• Adjustable gibs throughout for precise fit and reduced play across all axes
• Heavy duty splined motor drive for dependable power transmission under load
• Internal coolant tank built into the casting base for use with a coolant system (coolant pump not included)
• Large diameter quill is chromed for smooth travel and long-lasting wear resistance
• One shot lubrication system simplifies maintenance and helps extend machine life
• Precision hardened and ground ways and table ensure accuracy and surface integrity
• Spindle head is internally cooled to maintain consistent operating temperatures during extended use
• Tolerance test sheet included for verified out-of-box accuracy confirmation
• Precision bored and honed milling head for quality, repeatable cuts
• Three-stage power downfeed with automatic stop for controlled and efficient drilling and boring operations
• Newall DP700 Digital Readout (DRO) for real-time, high-accuracy 2-axis position feedback
• Pneumatic power draw bar speeds tool changes and reduces operator fatigue
• X-axis powerfeed for consistent, hands-free longitudinal table movement
• Available in single or three phase power configurations
• Backed by JET's industry-leading two-year full service and parts warranty

Specifications

• MPN: JT9-690069
• Stock Number: 690069
• Style (Type): Variable Speed R8
• Motor: 3 HP, 230/460V, 3Ph
• Range of Spindle Speeds (RPM): 60 - 4,200
• Spindle Taper: R-8
• Spindle Travel (In.): 5
• Quill Diameter (In.): 3-3/8
• Quill Down Feed Rates (IPR): .0015 - .003 - .006
• Collet Capacity: 1/8 - 7/8
• Table Longitudinal Travel (In.): 34
• Table Longitudinal Travel With Powerfeed (In.): 28-3/4
• Table Cross Travel (In.): 12
• T-Slot Centers (In.): 2-1/2
• Distance Spindle to Column, Max. (In.): 19
• Max Distance Spindle to Table (In.): 17-1/2
• Number of Axis: 2
• Powerfeed: X-Axis
• Power Draw Bar: Pneumatic
• Overall Dimensions (L x W x H) (In.): 66 x 63 x 85
• Country of Origin: Taiwan
• Prop 65: Cancer and Reproductive Harm

Frequently Asked Questions

What spindle taper does the JET JTM-4VS use, and what collet sizes does it accept?

The JTM-4VS uses an R-8 spindle taper, which is one of the most common and widely supported tapers in vertical milling. It accepts collets ranging from 1/8 to 7/8 inch, accommodating a broad range of end mills, drill chucks, and tooling holders.

How does the pneumatic power draw bar benefit the operator?

The pneumatic power draw bar allows for rapid, one-handed tool changes without the need to manually torque a draw bar wrench. This significantly reduces tool change time and operator fatigue during high-volume or repetitive machining operations.

Is the coolant system ready to use out of the box?

The JTM-4VS features an internal coolant tank built directly into the casting base, which is designed for use with a coolant system. However, the coolant pump is not included and must be sourced separately to activate coolant flow.

What does the inclusion of the Newall DP700 DRO add to this mill?

The Newall DP700 is a professional 2-axis digital readout system that provides real-time, highly accurate position feedback on the X and Y axes. This eliminates manual dial reading errors, speeds up setup, and improves part-to-part repeatability - making it an essential productivity upgrade for precision milling work.