JET JTM-2 Mill with Newall DP500 DRO is a precision vertical knee mill engineered by JET for demanding machining operations that require accuracy, rigidity, and reliable performance. Built on certified Meehanite castings and equipped with a Newall DP500 digital readout system, this step-pulley R-8 mill delivers the stability and precision that serious machinists depend on across a wide range of milling, drilling, and boring applications. A 2 HP motor, 8 spindle speeds ranging from 80 to 2,720 RPM, and a 9 x 42 inch table combine to make the JTM-2 a capable and durable addition to any professional or industrial shop floor.

Key Features

• Certified Meehanite castings provide exceptional rigidity and vibration dampening for superior surface finishes
• Heavy duty splined motor drive ensures reliable, consistent power transmission to the spindle
• Internal coolant tank built into base for use with coolant system (coolant pump not included)
• Large diameter quill is chromed for smooth, precise movement and extended wear resistance
• One shot lubrication system simplifies maintenance and protects critical moving components
• Precision bored and honed milling head ensures accurate spindle alignment and long-term performance
• Precision hardened and ground ways deliver tight tolerances and consistent travel across all axes
• Spindle head is internally cooled to prevent heat buildup and protect bearings during extended operation
• Three stage power downfeed with automatic stop allows precise, repeatable depth control
• Tolerance test sheet included to verify the machine's precision right out of the crate

Specifications

• MPN: JT9-692193
• Country of Origin: Taiwan
• Style (Type): Step Pulley R8
• Motor: 2 HP, 115/230V, 1Ph
• Number of Spindle Speeds: 8
• Range of Spindle Speeds (RPM): 80 - 2,720
• 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 42
• Table Longitudinal Travel (In.): 23-7/8
• Table Longitudinal Travel With Powerfeed (In.): 20-2/7
• Table Cross Travel (In.): 12-1/2
• T-Slot Centers (In.): 2-1/2
• Travel of Knee (In.): 14-1/2
• Travel of Ram (In.): 13-3/8
• Distance Spindle to Column (Max.) (In.): 19
• Max Distance Spindle to Table (In.): 17-1/2
• Number of Axis: 2
• Overall Dimensions (L x W x H) (In.): 57 x 64 x 82
• Prop 65: Cancer and Reproductive Harm

What's Included

• Newall DP500 Digital Readout (DRO)
• Tolerance test sheet

Frequently Asked Questions

What spindle taper does the JET JTM-2 use, and what collet sizes are compatible?

The JTM-2 uses an R-8 spindle taper, which is one of the most widely used standards in vertical knee mills. It accepts collets ranging from 1/8 inch to 7/8 inch, making it compatible with a broad selection of standard tooling available from most tooling suppliers.

Does the JTM-2 include a coolant pump?

The JTM-2 features an internal coolant tank built directly into the base, which is designed for use with a coolant system. However, the coolant pump is not included and would need to be sourced separately if coolant delivery is required for your application.

What are the three quill downfeed rates available on the JTM-2?

The three stage power downfeed system offers feed rates of .0015, .003, and .006 inches per revolution (IPR), giving operators precise control over material removal rates. The automatic stop feature allows repeatable depth settings, which is especially useful for production drilling and boring operations.

How does the internally cooled spindle head benefit machining performance?

The internally cooled spindle head dissipates heat generated during extended cutting operations, helping to prevent thermal expansion and bearing seizure. This design feature protects the precision Class 7 spindle bearings and helps maintain dimensional accuracy over long machining sessions.