Jet Equipment JT9-690400 JTM-4VS Vertical Milling Machine

Product Description

The JET EQUIPMENT JT9-690400 is a JTM-4VS series vertical milling machine built for consistent, reliable metal removal in professional shop environments. Constructed using the Meehanite casting process, the column and base deliver rigidity and vibration damping that directly affects surface finish and tool life. The machine runs on 3 HP at 230/460 volts, 3-phase power, and features a variable-speed milling head that is precision bored and honed for accurate, repeatable cuts. A three-stage power downfeed with automatic stop adds process control for drilling and boring operations without continuous operator attention.

The JTM-4VS is suited for job shops, toolrooms, maintenance departments, and trade training facilities that require a full-size knee mill capable of handling ferrous and non-ferrous workpieces. Its variable-speed drive eliminates the need for belt changes when adjusting spindle speed, reducing setup time between operations. This machine is configured for 3-phase power and is noted as made to order, making it appropriate for facilities with existing 3-phase service. Installation and commissioning are typically handled by qualified millwrights or industrial equipment technicians.

Key Features

• Meehanite cast construction for rigidity and vibration damping
• Precision bored and honed milling head for accurate, quality cuts
• Variable-speed drive eliminates manual belt changes
• Three-stage power downfeed with automatic stop for drilling and boring control
• Available in single or three-phase power configurations
• Backed by a two-year full service and parts warranty

Compatibility

Designed as part of the JET JTM-4VS series vertical knee mill line, configured for 3-phase electrical service.

Installation Notes

Installation should be performed by a qualified millwright or industrial equipment technician. Disconnect and lock out all electrical power before making any wiring connections, and verify that the incoming service matches the machine's 230/460-volt, 3-phase requirement before energizing. The machine weighs 2,420 pounds and requires appropriate lifting equipment and a level, reinforced concrete floor for proper placement. Consult local electrical codes and the manufacturer's installation manual before commissioning.