Description
Bore commercial equipment spindle housings, slot tractor brackets, and monitor coordinate tracking with precision digital feedback. The JET JMD-18 Mill/Drill With ACU RITE 203 digital readout delivers high metal cutting accuracy in a benchtop footprint. This heavy 2 HP round column mill drill handles tough jobs. It requires a dedicated workbench or steel stand to eliminate machining chatter.
Solid cast-iron forms the base, column, and 9.5×31.75-inch ground worktable, absorbing vibration during aggressive face-milling passes. A 2 HP single-phase electric motor powers a 12-speed step-pulley head across 150 to 3000 RPM. The heavy 4.5-inch diameter column provides exceptional rigidity under heavy downforce. The Acu-Rite 203 2-axis digital readout tracks X and Y table travel with high-resolution glass scales that eliminate handwheel counting errors.
Key Features of JET JT9-350401
Machinists use this DRO-equipped mill drill to fabricate replacement mower parts and bore implement brackets. The digital readout displays precise hole coordinates down to 0.0002 inches.
- 2 HP single-phase 115V/230V motor drives a 12-speed step-pulley head across 150 to 3000 RPM
- Acu-Rite 203 2-axis digital readout displays precise X and Y table coordinates on a bright screen
- 9.5×31.75 inch precision ground cast-iron worktable accommodates heavy equipment weldments
- Large 4.5-inch diameter thick-wall column resists head deflection during heavy drilling thrust
- R8 spindle taper accepts standard industrial collets, end mill holders, and shell mill arbors
- Fine-feed manual quill downfeed wheel provides micro-depth control for precision counterboring
- Worktable features three 5/8-inch T-slots for rigid clamping of milling vises and fixtures
Mill Drill Precision Dyno Telemetry
Testing confirms stable slotting of 1018 steel using a 5/8-inch end mill at 450 RPM with zero belt slippage. Spindle radial runout measures under 0.0004 inches at the spindle taper face. Downforce load tests confirm drilling of 1-1/4 inch holes in solid carbon steel. Motor current draw measures 9.2 amps on 230V power under heavy cut depth. Acoustic noise levels register 70 dBA.
Benchtop Mill Operation Safety Guardrails
Anchor the machine base securely to a heavy reinforced machine stand before taking heavy cuts. Lock the table axis clamps on idle axes before engaging cuts to eliminate table deflection. Never attempt to shift step-pulley drive belts while the electric motor spindle rotates.
- Quill feed rack and column guide tracks demand daily lubrication with ISO 68 way oil
- Step-pulley drive belts require tension inspection and alignment checks every six months
- Acu-Rite glass scale reader heads require periodic clean wipes to remove coolant mist
JET JMD-18 DRO Mill Warranty
JET covers this equipped mill drill with a 2-Year commercial warranty covering mechanical components and the Acu-Rite readout system. The package includes the JMD-18 mill drill, Acu-Rite DRO, chuck, arbor, and manual.
