The JET JTM-1 Step Pulley Milling Machine is built for professional machine shops requiring dependable performance, precision, and durability. Featuring heavy-duty Meehanite castings, a 2 HP three-phase motor, and a 9″ x 42″ worktable, this vertical knee mill is well suited for machining components, tooling, fixtures, and precision metalworking projects.

The JTM-1 features a traditional step pulley drive system with 16 spindle speeds ranging from 80 to 5,440 RPM. This broad speed range allows operators to select suitable cutting speeds for different materials, tooling, and machining applications. Its R-8 spindle taper accommodates a wide selection of commonly used milling collets, cutters, and toolholders.

With 5″ of spindle travel, a precision-machined worktable, and three quill down-feed rates, the JET JTM-1 provides the flexibility needed for milling, drilling, and boring operations. Its robust construction helps maintain stability during demanding machining tasks.

Key Features and Benefits

• 2 HP Three-Phase Motor: Provides reliable power for milling, drilling, and precision metalworking applications.
• 9″ x 42″ Worktable: Offers a substantial workholding surface for vises, fixtures, and workpieces.
• 16 Step Pulley Spindle Speeds: Provides a speed range of 80–5,440 RPM for a variety of cutting operations.
• R-8 Spindle Taper: Compatible with a broad range of commonly available milling tooling and accessories.
• 5″ Spindle Travel: Provides vertical working range for drilling, boring, and milling applications.
• 23-7/8″ Longitudinal Table Travel: Allows workpiece positioning along the X-axis.
• 12-1/2″ Cross Table Travel: Provides additional positioning flexibility across the Y-axis.
• 14-1/2″ Knee Travel: Accommodates different workpiece heights and tooling arrangements.
• Meehanite Cast-Iron Construction: Provides rigidity and helps minimize vibration during machining.
• Three Quill Down-Feed Rates: Offers 0.0015, 0.003, and 0.006 inches per revolution for controlled spindle feeding.
• 550 lb Table Capacity: Supports substantial workpieces and workholding equipment.

Available Configurations and Accessories

The JET JTM-1 milling machine is available with optional digital readout systems (DROs) and power feeds, allowing customers to select equipment suited to their machining requirements.

The JET JTM-1 milling machine is an excellent choice for machine shops looking for a dependable step pulley vertical mill. With its heavy-duty construction and versatile spindle speeds, the JET JTM-1 milling machine provides reliable performance for precision metalworking applications.

Accessories are configuration-dependent. JET does not offer every accessory combination as a factory-configured machine. Please contact us with your preferred accessories so we can verify availability and pricing.

We also carry additional milling machine accessories, including collet sets, machine vises, clamping kits, drill chucks, and coolant systems. Select power feeds, digital readout systems, and power drawbar accessories may also be available separately for installation.

Contact us for machine availability, configuration options, accessories, and pricing.