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Jet Geared Head Mill Drill with Newall DP500 2-Axis DRO
- $3,663.00
- Brands JET
- Product Code: 351158
- Availability: In Stock
JET Geared Head Square Column Mill/Drill with Newall DP500 2-Axis DRO Product Overview The JET Geared Head Square Column Mill/Drill with Newall DP500 2-Axis DRO is a heavy-duty machine built for precision drilling, milling, boring, and general metalworking. Its rigid square-column construction with dovetail ways provides a stable machining platform, while the 6-speed geared head transfers full m..
Features of Jet Mill Drill with Newall DP500 2-Axis DRO
JET Geared Head Square Column Mill/Drill with Newall DP500 2-Axis DRO
Product Overview
The JET Geared Head Square Column Mill/Drill with Newall DP500 2-Axis DRO is a heavy-duty machine built for precision drilling, milling, boring, and general metalworking. Its rigid square-column construction with dovetail ways provides a stable machining platform, while the 6-speed geared head transfers full motor power to the cutting tool.
The integrated Newall DP500 2-axis digital readout (DRO) makes it easier to monitor X- and Y-axis table movement, improving positioning and repeatability during machining. The machine also features an R8 spindle, tilting head, large cast-iron worktable, calibrated fine downfeed, and a 1.5 HP, 115/230V single-phase motor.
Key Features
- Heavy-duty square-column design with dovetail ways.
- 6-speed geared head provides full power to the cutting tool.
- Newall DP500 2-axis DRO provides digital X/Y position information.
- R8 spindle taper accepts a wide range of milling tooling.
- Head tilts 90° left and right for angled machining.
- Built-in calibrated fine downfeed for controlled spindle movement.
- Easy-to-read internal depth gauge.
- Quick-select gear levers simplify spindle-speed changes.
- Forward/reverse spindle switch.
- Spindle guard and integrated work lamp.
- 1.5 HP, 115/230V, single-phase motor.
- CSA/CUS certified configuration.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | JET |
| Model | JMD-45GH |
| Product Type | Geared-head square-column mill/drill |
| Digital Readout | Newall DP500 2-Axis DRO |
| Drilling Capacity | 1-1/2 in. |
| Face Mill Capacity | 4 in. |
| End Mill Capacity | 3/4 in. |
| Swing | 19-11/16 in. |
| Maximum Spindle-to-Table Distance | 18-1/8 in. |
| Spindle Taper | R8 |
| Spindle Travel | 5 in. |
| Automatic Spindle Travel | 5 in. |
| Quill Diameter | 3 in. |
| Column Size | 7-7/8 x 7-5/8 in. square |
| Number of Spindle Speeds | 6 |
| Spindle Speed Range | 65–1,550 RPM |
| Table Size | 9-1/2 x 32-1/4 in. |
| Longitudinal Table Travel | 20-1/2 in. |
| Cross Table Travel | 8-1/4 in. |
| T-Slots | 4 x 5/8 in. |
| Head Tilt | 90° left / 90° right |
| Motor | 1.5 HP |
| Voltage | 115/230V |
| Phase | 1 Phase |
| Overall Dimensions | 29 x 36 x 50 in. |
| Approx. Machine Weight | 794 lb. |
| Stand Included | No |
The specifications above correspond to the JMD-45GH / Item 351158 DP500 configuration. Published JET listings identify the 6-speed spindle range as 65–1,550 RPM, with a 1.5 HP motor, 20.5-inch longitudinal table travel, and 794-lb. machine weight.
Newall DP500 2-Axis DRO
The Newall DP500 2-axis digital readout is designed to make table positioning easier to monitor during machining. It provides digital position feedback for the machine's primary table axes.
The DRO is especially useful when:
- Locating multiple holes.
- Repeating milling cuts.
- Positioning slots and pockets.
- Establishing precise feature locations.
- Returning to previously established positions.
- Performing repeat machining operations.
With approximately 20-1/2 inches of longitudinal travel and 8-1/4 inches of cross travel, the table provides useful positioning range for a variety of workpieces.
6-Speed Geared Head
The machine's 6-speed geared head provides direct mechanical power transmission to the spindle. The available 65–1,550 RPM range allows the operator to select a suitable speed for different cutters, materials, and machining operations.
Lower speeds can be selected for larger-diameter tooling and heavier cuts, while higher speeds are appropriate for smaller cutters and suitable finishing applications.
Quick-select gear levers make spindle-speed changes straightforward.
Square Column Construction
The square column and dovetail ways provide rigidity for demanding drilling and milling operations. The rigid structure helps maintain spindle alignment and minimizes unwanted movement when cutting forces increase.
This construction is useful for operations such as:
- Face milling
- End milling
- Slotting
- Boring
- Drilling
- Counterboring
- General stock removal
R8 Spindle
The R8 spindle taper is a common milling-machine tooling standard, giving users access to a broad selection of compatible accessories.
The machine is rated for:
- 1-1/2-inch drilling capacity
- 4-inch face-mill capacity
- 3/4-inch end-mill capacity
Actual cutting performance depends on the material, tooling, spindle speed, feed rate, depth of cut, and workholding setup.
Tilting Head
The milling head tilts 90° to the left or right, allowing the spindle to be positioned for angled machining operations.
This feature can be useful for:
- Angled holes
- Beveled surfaces
- Angular milling
- Specialized machining setups
- Work requiring a non-vertical spindle orientation
Always securely lock the head before beginning a cutting operation.
Worktable and Movement
The 9-1/2 x 32-1/4-inch table provides a substantial surface for mounting workpieces, vises, clamps, and fixtures.
The table offers approximately:
- 20-1/2 inches longitudinal travel
- 8-1/4 inches cross travel
Four 5/8-inch T-slots provide mounting points for compatible workholding accessories.
Proper clamping is essential, particularly when performing heavy milling operations.
Power and Electrical Configuration
The mill/drill is equipped with a 1.5 HP single-phase motor configured for 115/230V operation.
This provides flexibility for workshops with compatible electrical service. The machine should be wired for the appropriate voltage before operation, with electrical installation performed according to JET's requirements and applicable codes.
Typical Applications
The JET Geared Head Square Column Mill/Drill is suitable for:
- Machine shops
- Fabrication shops
- Maintenance departments
- Repair facilities
- Tool rooms
- Prototype development
- Small-batch production
- General metalworking
- Technical education
It is particularly useful when a conventional drill press does not provide enough rigidity or milling capability for the intended work.
Common Machining Operations
Drilling
Produce holes using suitable drills and appropriate spindle speeds.
Milling
Remove material from surfaces, edges, and workpiece features with compatible milling cutters.
Boring
Enlarge and finish existing holes to achieve a desired diameter.
Slotting
Create slots and channels using suitable end mills.
Face Milling
Produce flat, machined surfaces using an appropriate face mill.
Counterboring
Create stepped holes for fasteners and other components.
Angled Machining
Use the tilting head for suitable angular operations.
Benefits for Professional Users
Digital Position Readout
The Newall DP500 makes X/Y positioning easier to monitor and repeat.
Geared-Head Power
Six mechanical spindle speeds provide useful torque for both drilling and milling.
Rigid Square Column
The column and dovetail ways provide a stable structure for precision machining.
Flexible R8 Tooling
The R8 spindle accommodates a wide variety of commonly available milling accessories.
Adjustable Head
90° left/right head movement expands the range of possible machining setups.
Large Worktable
The 32-1/4-inch-long table provides useful space for fixtures and larger workpieces.
Maintenance
Regular maintenance is important for preserving accuracy and machine life.
Inspect:
- Spindle and bearings
- Gear head
- Quill and downfeed mechanism
- Column and dovetail ways
- Table and T-slots
- Lead screws
- DRO scales and cables
- Work lamp
- Spindle guard
- Electrical connections
- Lubrication points
Clean metal chips from the table and ways after use. Keep the DRO scales protected from chips, coolant, and other contaminants.
Follow JET's recommended lubrication and maintenance procedures.
Safety Considerations
Milling and drilling involve rotating cutters and potentially high cutting forces. Always wear appropriate eye protection and use additional PPE required for the specific material and operation.
Secure workpieces firmly with a suitable vise, clamp, or fixture. Never hold material by hand during milling or drilling.
Keep hands, loose clothing, jewelry, and hair away from rotating tooling. Never measure, adjust, or reposition a workpiece while the spindle is running.
Remove chuck keys, setup tools, and other loose objects before starting the machine.
Disconnect the electrical supply before changing tooling, servicing the machine, or accessing moving components.
Why Choose the JET Geared Head Square Column Mill/Drill?
The JET Geared Head Square Column Mill/Drill with Newall DP500 2-Axis DRO combines rigid square-column construction, a 6-speed geared head, R8 tooling compatibility, a tilting head, substantial table travel, and digital X/Y position feedback in one versatile machine.
With its 1.5 HP motor, 65–1,550 RPM spindle range, 1-1/2-inch drilling capacity, 4-inch face-mill capacity, and 3/4-inch end-mill capacity, it is well suited to professional users performing precision drilling, milling, boring, slotting, and general metalworking operations.