JET JTM-1050VS2 Mill with 3-Axis ACU-RITE 203 DRO (Knee) and X & Y-Axis Powerfeeds by JET is a precision vertical knee mill engineered for demanding machining environments. Built on Meehanite castings with a hardened and ground 10" x 50" table, this variable speed machine delivers exceptional rigidity and accuracy. High-precision Class 7 bearings support the spindle, and precision-bored and honed milling heads ensure quality cuts on every pass. The integrated ACU-RITE 203 DRO with 3-axis knee readout and X & Y-axis powerfeeds make this mill a highly capable and operator-friendly solution for professional machine shops.

Key Features

• Adjustable gibs throughout for precise fit and long-term accuracy
• Chrome lead screws on X and Y axis for smooth, wear-resistant travel
• Chrome-plated motor shaft with bearing support at end for added durability and stability
• Hardened and ground square vertical knee ways and cross ways for rigid, accurate movement
• Heavy duty motor drive delivers consistent power across the full speed range
• One shot lubrication system simplifies maintenance and extends machine life
• Spindle head is internally cooled to manage heat during extended machining operations
• Tolerance test sheet included to verify out-of-box precision
• Meehanite castings provide a stable, vibration-dampening machine base
• Three-stage power downfeed with automatic stop for repeatable depth control
• ACU-RITE 203 DRO with 3-axis knee readout for precise positional feedback
• X and Y-axis powerfeeds for reduced operator fatigue and consistent feed rates
• Variable spindle speed range of 70-3,800 RPM for versatile material compatibility
• Backed by the JET Two Year Warranty

Specifications

• Stock Number: 690256
• Country of Origin: Taiwan
• Style (Type): Variable Speed R8
• Motor: 3 HP, 230/460V, 3Ph
• Range of Spindle Speeds (RPM): 70-3,800
• 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: 10" x 50"
• Table Longitudinal Travel (In.): 35
• Table Longitudinal Travel With Powerfeed (In.): 29-3/4
• Table Cross Travel (In.): 15-1/4
• T-Slot Centers (In.): 2-1/2
• Distance Spindle to Column, Max. (In.): 26
• Max Distance Spindle to Table (In.): 19
• Number of Axis: 3 (Knee)
• Powerfeed: X and Y-Axis
• Overall Dimensions (L x W x H) (In.): 96 x 78 x 88
• Prop 65: Cancer and Reproductive Harm

What's Included

• Tolerance test sheet

Frequently Asked Questions

What spindle taper does the JTM-1050VS2 use?

The JTM-1050VS2 uses an R-8 spindle taper, which is one of the most common standards for vertical knee mills, providing broad compatibility with tooling and collets. The collet capacity range is 1/8-7/8 inches.

What is the spindle speed range, and does it support variable speed operation?

Yes, this is a variable speed mill with a spindle speed range of 70-3,800 RPM, allowing the operator to dial in the appropriate cutting speed for a wide variety of materials and tooling diameters without changing belt positions.

How does the one shot lubrication system benefit the operator?

The one shot lubrication system delivers oil to the machine's critical bearing surfaces and ways with a single pump action, simplifying routine maintenance, reducing wear, and helping to extend the working life of the machine.

What DRO system is included, and what axes does it cover?

The machine comes equipped with an ACU-RITE 203 Digital Readout (DRO) configured for 3-axis knee operation. Combined with the X and Y-axis powerfeeds, this setup gives the operator precise positional control and consistent, repeatable results during milling operations.