JET JTM-2 Step Pulley Milling Machine 115/230V 1Ph is a precision-engineered vertical milling machine from JET, designed for demanding metal removal operations that require rigidity, accuracy, and consistent performance. Built on certified Meehanite castings and equipped with a precision bored and honed milling head, the JTM-2 delivers the mechanical integrity and repeatability that serious machinists and production shops depend on. With a 2 HP motor, eight spindle speeds ranging from 80 to 2,720 RPM, and a 42-inch table, this machine is built to handle a wide range of milling, drilling, and boring tasks with confidence.

Key Features

• Certified Meehanite castings for exceptional rigidity and vibration damping
• Heavy duty splined motor drive for reliable power transmission
• 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 long-term durability
• One shot lubrication system simplifies maintenance and protects critical wear surfaces
• Precision bored and honed milling head ensures accurate spindle alignment
• Precision hardened and ground ways for smooth travel and lasting accuracy
• Spindle head is internally cooled to prevent seizing during extended operation
• Three stage power downfeed with automatic stop for repeatable depth control
• Tolerance test sheet included for documented out-of-box accuracy verification

Specifications

• Stock Number: 690089
• 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
• Distance Spindle to Column (Max.) (In.): 19
• Max Distance Spindle to Table (In.): 17-1/2
• Travel of Knee (In.): 14-1/2
• Travel of Ram (In.): 13-3/8
• Overall Dimensions (L x W x H) (In.): 57 x 64 x 82
• Weight (Lbs.): 2200
• Country of Origin: Taiwan
• Prop 65: Cancer and Reproductive Harm

What's Included

• Tolerance test sheet for documented accuracy verification at time of delivery

Frequently Asked Questions

What spindle taper does the 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 milling machines. It accepts collets ranging from 1/8 inch to 7/8 inch, giving operators broad compatibility with standard tooling.

Does this machine include a coolant pump?

The JTM-2 features an internal coolant tank built into the base for use with a coolant system; however, the coolant pump is not included and must be purchased separately if coolant delivery is required.

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

The three stage power downfeed offers feed rates of .0015, .003, and .006 inches per revolution (IPR), allowing operators to select the appropriate chip load for the material and tooling in use. The automatic stop feature ensures repeatable depth control on each pass.

How is the spindle head protected during long machining cycles?

The spindle head on the JTM-2 is internally cooled, which helps prevent seizing and maintains consistent performance during extended or heavy-duty milling operations. The large diameter chromed quill and precision bored and honed milling head further contribute to long-term accuracy and reliability.