Description
Mill precision mounting slots, drill bolt hole patterns, and face commercial cutter housings without manual handwheel fatigue. The JET Geared Head Square Column mill drill package features a Newall DP500 2-axis digital readout and X-axis power feed. This square column machine combines geared torque with automated table transit. It requires 230V single-phase electrical power to operate.
Solid cast-iron forms the square column upright, damping out cutting chatter during aggressive slotting passes. A 1.5 HP electric motor drives a six-speed geared spindle head through hardened steel gears, providing matched torque across 65 RPM to 1550 RPM. Motorized X-axis table power feed provides continuous table movement with rapid traverse override. The Newall DP500 2-axis DRO uses spherical scale sensors to track table position within 0.0002 inches.
Key Features of JET JT9-351161
Fleet repair machinists use this equipped mill drill to machine custom mower spindles and slot chassis brackets. The combination of power feed and digital readout eliminates manual crank errors.
- 1.5 HP electric motor powers a six-speed geared head spindle across 65 RPM to 1550 RPM
- Newall DP500 2-axis digital readout displays precise X and Y axis table coordinates
- Motorized X-axis power feed delivers automated table transit with rapid traverse control
- Square column design prevents head rotation during elevation adjustments to hold location
- Three-speed automated power downfeed advances the quill under controlled drilling thrust
- R8 spindle taper accepts standard industrial collets, end mill holders, and boring heads
- Precision ground cast-iron worktable features three 5/8-inch T-slots for rigid vise mounting
Square Column Machining Dyno Telemetry
Spindle load tests verify continuous slotting of 1018 steel using a 3/4-inch end mill at 420 RPM with zero gear chatter. X-axis power feed maintains table feed speed within 2 percent across varying cutter loads. Spindle radial runout measures under 0.0004 inches at the spindle nose. Motor current draw measures 7.6 amps on 230V single-phase power during heavy cutting. Acoustic sound output measures 75 dBA.
Production Milling Setup Safety Guardrails
Anchor the machine base securely to a reinforced concrete floor slab before running automated table feeds. Verify table travel stops before engaging the X-axis power feed to prevent vise crashes. Never reach across the rotating cutter to clear metal chips; use a specialized chip scraper.
- Geared spindle head requires ISO 68 industrial gear oil changes every 1000 hours
- Quill feed rack and square column ways demand daily lubrication with ISO 68 way oil
- Newall digital readout scale reader heads require periodic clean wipes to remove coolant mist
JET Mill Drill Package Warranty
JET backs this equipped mill drill with a 2-Year commercial warranty covering mechanical gearing and electronic readouts. The package includes the mill drill, DP500 DRO, X-axis powerfeed, power downfeed, drawbar, and manual.
