JET JTM-4VS Mill with X, Y and Z-Axis Powerfeeds is a professional-grade variable speed vertical milling machine from JET, engineered for demanding machining operations in industrial and production shop environments. Built on the Certified Meehanite casting process, this mill delivers consistent, reliable performance with precision-bored and honed milling heads for quality cuts, and features X, Y, and Z-Axis powerfeeds for enhanced productivity and operator control across all three axes of travel.

Key Features

• Adjustable gibs throughout for precise fit and reduced wear over time
• Heavy duty splined motor drive for dependable, high-torque power transmission
• Internal coolant tank built into casting base for use with coolant system (coolant pump not included)
• Large diameter quill is chromed for smooth, durable operation and extended service life
• One shot lubrication system for easy, consistent lubrication of critical components
• Precision hardened and ground ways and table for superior accuracy and long-term wear resistance
• Spindle head is internally cooled to maintain temperature stability during extended machining operations
• Tolerance test sheet included to verify machine accuracy right out of the box
• Three-stage power downfeed with automatic stop for controlled, repeatable depth cuts
• Variable spindle speed range of 60 - 4,200 RPM to accommodate a wide variety of materials and tooling
• Precision bored and honed milling head for consistent, high-quality results
• Available in single or three phase power configurations
• Backed by an industry-leading two-year full service and parts warranty

Specifications

• Stock Number: 690013
• Style (Type): Variable Speed R8
• Motor: 3 HP, 230/460V, 3Ph
• Powerfeed: X, Y and Z-Axis
• 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
• Distance Spindle to Column (Max.) (In.): 19
• Max Distance Spindle to Table (In.): 17-1/2
• Overall Dimensions (L x W x H) (In.): 66 x 63 x 85
• Country of Origin: Taiwan
• Prop 65: Cancer and Reproductive Harm

What's Included

• Tolerance test sheet

Frequently Asked Questions

What axes does the powerfeed cover on the JET JTM-4VS?

The JET JTM-4VS includes powerfeeds on the X, Y, and Z-Axis, providing automated table movement along all three primary axes for improved efficiency and reduced operator fatigue during repetitive machining tasks.

What spindle taper does this mill use, and what collet sizes are compatible?

The JTM-4VS uses an R-8 spindle taper, which is one of the most common standards in vertical milling. The collet capacity ranges from 1/8 to 7/8 inch, accommodating a broad selection of tooling.

Does the JTM-4VS include a coolant pump?

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

What quill down feed rates are available, and what is the quill travel?

The JTM-4VS offers three-stage power downfeed rates of .0015, .003, and .006 inches per revolution (IPR), with an automatic stop feature for consistent depth control. The quill provides 5 inches of total spindle travel, and the large diameter 3-3/8 inch quill is chromed for smooth, precise operation.