JET JTM-4VS-1 Mill with X and Y-Axis Powerfeeds is a professional-grade vertical milling machine from JET, engineered for demanding metalworking applications where precision, versatility, and consistent performance are essential. Built on the Certified Meehanite casting process, this variable speed mill delivers reliable operation across a wide spindle speed range, and its X and Y-axis powerfeeds make it an outstanding choice for machinists and toolrooms requiring smooth, repeatable table movement. Backed by an industry-leading two-year full service and parts warranty, the JTM-4VS-1 is precision bored and honed for quality cuts and features a three-stage power downfeed with automatic stop for operator convenience.

Key Features

• Adjustable gibs throughout for precise fit and long-term accuracy
• Heavy duty splined motor drive for dependable power transmission
• Internal coolant tank built into the casting base for use with a coolant system (coolant pump not included)
• Large diameter quill is chromed for durability and smooth operation
• One-shot lubrication system for easy, consistent machine maintenance
• Precision hardened and ground ways and table for superior accuracy and extended service life
• Spindle head is internally cooled to maintain operating temperatures during extended use
• Tolerance test sheet included to verify machine accuracy out of the box
• Certified Meehanite casting process construction for consistent and reliable operation
• Precision bored and honed milling head for quality cuts
• Three-stage power downfeed with automatic stop for controlled, repeatable drilling and milling operations
• Available in single phase power configuration
• X and Y-axis powerfeeds for smooth, motorized table travel
• Variable spindle speed ranging from 60 to 4,200 RPM to accommodate a wide variety of materials and tooling

Specifications

• Stock Number: 690197
• Country of Origin: Taiwan
• Style (Type): Variable Speed R8
• Motor: 2 HP, 115/230V, 1Ph
• 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 Size (L x W) (In.): 9 x 49
• 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
• Travel of Knee (In.): 14-1/2
• Distance Spindle to Column (Max.) (In.): 19
• Max Distance Spindle to Table (In.): 17-1/2
• Powerfeed: X and Y-Axis
• Overall Dimensions (L x W x H) (In.): 66 x 63 x 85
• Prop 65: Cancer and Reproductive Harm

What's Included

• Tolerance test sheet to confirm out-of-box machine accuracy

Frequently Asked Questions

What spindle taper does the JET JTM-4VS-1 use?

The JTM-4VS-1 uses an R-8 spindle taper, one of the most widely used standards in vertical milling machines. It accepts collets ranging in capacity from 1/8 to 7/8 inch, providing broad compatibility with common tooling.

Does this mill include a coolant pump?

The JTM-4VS-1 features an internal coolant tank built into the casting base for use with a coolant system; however, the coolant pump is not included and must be purchased separately.

What power supply is required for the JTM-4VS-1?

This model is configured with a 2 HP motor operating on 115/230V, single phase (1Ph) power, making it compatible with standard workshop electrical service without the need for three-phase power.

What is the full range of spindle speeds available on this machine?

The JTM-4VS-1 offers variable spindle speeds ranging from 60 to 4,200 RPM, allowing operators to dial in the appropriate cutting speed for a wide variety of materials and milling or drilling operations.