JET JTM-1050EVS2/230 Mill with Acu-Rite 203 DRO, X/Y/Z-Axis Powerfeeds, and Air Powered Drawbar is a professional-grade 10" x 50" Electronic Variable Speed milling machine engineered by JET for demanding machining environments. Constructed using the Certified Meehanite casting process, this mill delivers consistent, reliable performance across heavy cutting applications. The newly designed column and base feature a rigid, robust build with an innovative leveling solution that eliminates the need to lift the machine off the floor - saving time and effort during installation and setup. Backed by the industry-leading JET Two Year Warranty and CSA/CUS Certified, this machine is built to meet the rigorous demands of professional machinists.

Key Features

• Automatic oiler releases 3 to 6 cc/cy of lubrication at adjustable time intervals, ensuring consistent lubrication across all critical components
• Class 7 spindle bearings support the spindle for maximum rigidity in heavy cutting applications
• Dual locks on all moveable surfaces provide enhanced stability and precision during operation
• Spindle head is internally cooled extending bearing, belt and motor life
• Swing away control box houses an e-stop and puts all controls at the operators fingertips for safe, convenient access
• Swing away safety shield for improved operator protection
• Table and ways are hardened up to 54 HRC and precision ground for greater accuracy
• The electrical box has been relocated to the back of the mill and houses two 115 outlets for powered accessories
• The invative design of the machine base provides an easier solution to level the machine without raising it up off the floor
• The X-Axis, Y-Axis are coated with Turcite-B for reduced vibration and smooth movements
• Electronic Variable Speed (EVS) drive with Delta B inverter provides a wide spindle speed range of 60-4,500 RPM without belt changes
• Pneumatic power drawbar and X, Y, and Z-axis powerfeeds increase productivity and reduce operator fatigue
• Acu-Rite 203 Digital Readout (DRO) delivers precise positional feedback across all three axes

Specifications

• Stock Number: 690650
• Style (Type): EVS
• Motor: 3 HP, 230V, 3Ph
• Range of Spindle Speeds (RPM): 60-4,500
• Inverter Type: Delta, B
• 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.): 35-1/3
• Table Cross Travel (In.): 14-3/4
• Max Distance Spindle to Table (In.): 20-3/4
• Distance Spindle to Column (Max.) (In.): 26-3/4
• Column Width (In.): 20
• Saddle Width (In.): 11-1/2
• T-Slot Centers (In.): 2-1/2
• Number of Axis: 2
• Powerfeed: X, Y and Z-Axis
• Power Draw Bar: Pneumatic
• Overall Dimensions (L x W x H) (In.): 66 x 63 x 87
• Country of Origin: Taiwan
• Prop 65: Cancer and Reproductive Harm

Frequently Asked Questions

What spindle speed range does the JTM-1050EVS2/230 provide?

The JTM-1050EVS2/230 offers an electronic variable speed range of 60-4,500 RPM, controlled through a Delta B inverter. This broad range allows the operator to dial in precise cutting speeds for a wide variety of materials and tooling without manually changing belts.

How does the Turcite-B coating on the X and Y axes benefit machining operations?

The X-Axis, Y-Axis are coated with Turcite-B for reduced vibration and smooth movements. This coating minimizes stick-slip motion and helps maintain consistent table travel, which is critical for achieving tight tolerances and high-quality surface finishes.

What type of lubrication system does this mill use?

The machine features an automatic oiler that releases 3 to 6 cc/cy of lubrication at adjustable time intervals. This ensures all critical sliding surfaces and components receive consistent lubrication, reducing wear and extending the service life of the machine.

What is the spindle taper and collet capacity on the JTM-1050EVS2/230?

The machine uses an R-8 spindle taper, which is the industry-standard taper for Bridgeport-style knee mills. The collet capacity ranges from 1/8-7/8 inches, accommodating a wide variety of end mills, drill chucks, boring heads, and other tooling commonly used in milling operations.