Jet Equipment JT9-690530 Vertical Milling Machine 3-axis

Product Description

The JET EQUIPMENT JT9-690530 is a variable-speed vertical knee mill built for production and toolroom environments. It ships with a 3-axis Acu-Rite 200S digital readout (DRO) configured on the quill axis and an X-axis powerfeed installed from the factory. The spindle operates across a variable range of 60 to 4500 RPM with an R-8 taper and accepts collets from 1/8 inch to 7/8 inch. Table size is 9 inches by 49 inches with a 720-pound work capacity. Class 7 spindle bearings, a Meehanite casting with enhanced ribbing, and Turcite-B coated X and Y axes combine to deliver rigidity and vibration reduction in heavy cutting applications. Licensed HVAC and machine-trade professionals install this unit in commercial and industrial shops.

This mill is suited for precision milling, drilling, and boring in job shops, toolrooms, and light manufacturing facilities. The 9-inch by 49-inch table provides 36 inches of longitudinal travel (30-3/4 inches with the powerfeed engaged) and 12-5/8 inches of cross travel. The spindle head tilts 90 degrees left and right and 45 degrees forward and back, supporting angled operations without repositioning the workpiece. The quill diameter is 3-3/8 inches with 5 inches of travel and down feed rates of 0.0015, 0.003, and 0.006 IPR. Maximum spindle-to-table distance is 20-3/4 inches. Three T-slots, sized at 5/8 inch with 2-1/2-inch centers, accept standard milling fixtures and vises.

Key Features

• Acu-Rite 200S 3-axis DRO with quill axis readout installed from the factory
• X-axis powerfeed included; longitudinal table travel of 36 inches (30-3/4 inches under powerfeed)
• Variable spindle speed from 60 to 4500 RPM with an R-8 spindle taper
• Meehanite casting with enhanced ribbing for rigidity and tolerance retention
• Table and ways hardened to 54 HRC and precision ground; X and Y axes coated with Turcite-B
• Automatic oiler delivers 3 to 6 cc per cycle every 30 minutes; spindle head is internally cooled
• Swing-away control box with E-stop; heavy-duty spindle brake prevents accidental start-up; two 115-volt outlets in relocated electrical box

Compatibility

Designed as an OEM-configured vertical knee mill accepting standard R-8 tooling, collets from 1/8 inch to 7/8 inch, and 5/8-inch T-slot fixtures commonly used in production and toolroom setups.

Installation Notes

Installation requires millwrights or qualified machine tool technicians; confirm floor load capacity before positioning given the machine weight. Disconnect and lock out all power before servicing spindle, electrical, or lubrication components. Level the machine using the integrated base leveling design before initial operation. Consult OSHA 29 CFR 1910.217 and applicable local machine safety codes for guarding and electrical connection requirements.