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Jet Geared Head Mill Drill with Newall DP700 2-Axis DRO
- $3,689.00
- Brands JET
- Product Code: 351150
- Availability: In Stock
JET Geared Head Square Column Mill/Drill with Newall DP700 2-Axis DRO Product Overview The JET Geared Head Square Column Mill/Drill with Newall DP700 2-Axis DRO is a heavy-duty machine designed for precision drilling, milling, boring, and general metalworking applications. Its rigid square-column construction with dovetail ways provides the stability needed for demanding machining, while the 6-s..
Features of Jet Mill Drill with Newall DP700 2-Axis DRO
JET Geared Head Square Column Mill/Drill with Newall DP700 2-Axis DRO
Product Overview
The JET Geared Head Square Column Mill/Drill with Newall DP700 2-Axis DRO is a heavy-duty machine designed for precision drilling, milling, boring, and general metalworking applications. Its rigid square-column construction with dovetail ways provides the stability needed for demanding machining, while the 6-speed geared head delivers full mechanical power to the cutting tool.
The integrated Newall DP700 2-axis digital readout (DRO) helps operators monitor table position along the X and Y axes, making setup and repeat positioning easier. The machine also features a 1.5 HP, 115/230V single-phase motor, R8 spindle, tilting head, and a substantial 9-1/2 x 32-1/4-inch worktable.
Key Features
- Heavy-duty square-column design with dovetail ways.
- 6-speed geared head provides full power to the cutting tool.
- Newall DP700 2-axis DRO displays X- and Y-axis table positioning.
- R8 spindle taper accommodates a wide range of milling tooling.
- Power downfeed provides controlled quill movement for drilling and boring.
- Head tilts 90° left and 90° right for angled machining.
- Quick-select gear levers allow rapid spindle-speed changes.
- Built-in calibrated fine downfeed for precise manual adjustment.
- Internal depth gauge helps monitor drilling depth.
- Spindle guard and work lamp improve operating convenience.
- 1.5 HP, 115/230V, single-phase motor.
- CSA/CUS certified.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | JET |
| Model | JMD-45GH |
| Product Type | Geared-head square-column mill/drill |
| Digital Readout | Newall DP700 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 | 4-1/4 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. |
| T-Slots | 4 slots, 5/8 in. |
| Base Dimensions | 26-11/16 x 15-15/16 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. |
| Weight | Approximately 794–820 lb., depending on published configuration |
| Stand | Not included; compatible stand is optional |
| Certification | CSA/CUS |
Published specifications for the DP700 configuration identify the machine as JET JMD-45GH, with six speeds from 65–1,550 RPM, a 1-1/2 HP 115/230V single-phase motor, 20-1/2-inch X travel, and 8-1/4-inch Y travel. Published weights vary between listings, so the exact shipping/configuration weight should be confirmed for the specific SKU.
Newall DP700 2-Axis Digital Readout
The Newall DP700 2-axis DRO is one of the machine's key precision-oriented features. It provides digital position information for the table's primary X and Y axes, reducing dependence on manually reading graduated scales.
The DRO can be particularly useful when:
- Locating multiple holes.
- Repeating milling cuts.
- Positioning pockets or slots.
- Setting up workpieces with multiple features.
- Returning to previously established table positions.
- Performing dimensional work requiring repeatable positioning.
The table provides approximately 20-1/2 inches of longitudinal travel, giving the X-axis readout a substantial working range.
6-Speed Geared Head
The 6-speed geared head provides direct mechanical power to the spindle and offers six selectable spindle speeds between 65 and 1,550 RPM. Quick-select gear levers allow the operator to change speeds without relying on a belt-based drive arrangement.
The available speed range accommodates different cutting requirements. Lower speeds are generally appropriate for larger cutters, larger-diameter drilling, or heavier cuts, while higher speeds can be selected for smaller tooling and suitable finishing operations.
Power Downfeed
The built-in power downfeed provides controlled automatic movement of the spindle during drilling and related operations.
This can be advantageous for:
- Repetitive drilling
- Boring
- Counterboring
- Controlled-depth operations
- Production work
- Consistent feed applications
The machine also incorporates a calibrated fine downfeed, giving the operator additional control when manual spindle positioning is preferred.
Square Column Construction
The machine's square column and dovetail ways are designed to provide the rigidity required for demanding machining applications.
A rigid column helps minimize unwanted movement during cutting, which is particularly important when performing:
- End milling
- Face milling
- Slotting
- Boring
- Large-hole drilling
- Heavy material removal
The cast-iron construction further contributes to the machine's overall stability.
R8 Spindle
The R8 spindle taper is a widely used milling-machine tooling interface. It allows the machine to work with a broad selection of compatible tooling and accessories.
Published capacities include:
- 1-1/2-inch drilling capacity
- 4-inch face-mill capacity
- 3/4-inch end-mill capacity
Actual cutting performance depends on material type, cutter geometry, spindle speed, feed rate, depth of cut, and workholding.
Tilting Head
The milling head can tilt 90° to either side, providing considerable flexibility for angled machining operations.
This feature can be useful for:
- Angled holes
- Beveled surfaces
- Angular milling
- Specialized fixtures
- Non-standard machining setups
The head should always be securely locked in position before cutting.
Worktable and Travel
The machine is equipped with a 9-1/2 x 32-1/4-inch table and approximately 20-1/2 inches of longitudinal travel. The published specifications also list approximately 8-1/4 inches of cross travel.
Four 5/8-inch T-slots provide attachment points for suitable clamps, vises, fixtures, and other workholding equipment.
A properly secured workpiece is essential for accurate milling and drilling.
Motor and Electrical Configuration
A 1.5 HP single-phase motor powers the machine. It is configured for 115/230V operation, providing installation flexibility where compatible electrical service is available.
Electrical installation should follow the machine's wiring requirements and applicable electrical codes. Confirm the required voltage configuration before connecting the mill/drill.
Typical Applications
The JET mill/drill is suitable for:
- Professional machine shops
- Fabrication
- Equipment repair
- Industrial maintenance
- Tool rooms
- Prototype machining
- Small-batch production
- General metalworking
- Technical and vocational training
Its combination of a geared head, substantial table, DRO, and power downfeed makes it particularly useful where a conventional drill press lacks the precision and milling capability required.
Benefits for Professional Users
Digital Position Feedback
The Newall DP700 DRO makes X/Y positioning easier to monitor and repeat.
Strong Geared-Head Drive
Six mechanical spindle speeds provide useful torque across a broad range of machining operations.
Rigid Square Column
The square-column and dovetail-way design provides a stable platform for precision work.
Automatic Power Downfeed
Provides controlled spindle movement for repetitive drilling and boring operations.
Flexible R8 Tooling
The R8 spindle supports a wide selection of standard milling accessories.
Tilting Head
90° left/right head adjustment expands the machine's machining capabilities.
Typical Machining Operations
The JET mill/drill can be used for:
Drilling: Producing holes in metal stock using suitable drills.
Milling: Removing material from surfaces and edges using compatible milling cutters.
Boring: Enlarging and finishing existing holes.
Slotting: Producing slots and channels with appropriate end mills.
Counterboring: Creating stepped holes for fasteners and other components.
Face Milling: Producing flat, machined surfaces.
Angled Machining: Using the tilting head for appropriate angular cuts.
Maintenance
Regular maintenance helps maintain machining accuracy and prolong machine life.
Inspect and maintain:
- Spindle and bearings
- Gear head
- Quill and power-feed 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 machining. Keep the DRO scales protected from chips, coolant, and other contaminants that could interfere with accurate position readings.
Follow JET's recommended lubrication and maintenance intervals.
Safety Considerations
Milling and drilling machines use rotating cutters and generate significant cutting forces. Always wear appropriate eye protection and use hearing, respiratory, or other PPE as required by the material and operation.
Secure workpieces with an appropriate vise, clamp, or fixture. Never hold material by hand during milling or drilling.
Keep hands, loose clothing, jewelry, and hair away from rotating tooling.
Do not change speeds, adjust the workpiece, measure the cut, or remove chips while the spindle is rotating.
Disconnect the machine from its electrical supply before performing maintenance, changing components, or working on electrical or mechanical systems.
Why Choose the JET Geared Head Square Column Mill/Drill?
The JET Geared Head Square Column Mill/Drill with Newall DP700 2-Axis DRO combines heavy-duty construction, six-speed geared-head power, automatic downfeed, R8 tooling compatibility, and digital X/Y position feedback in one versatile machining platform.
With its 1.5 HP motor, 65–1,550 RPM speed range, 1-1/2-inch drilling capacity, 4-inch face-mill capacity, 20-1/2-inch X-axis travel, and 90° head tilt, it is well suited to professional users performing precision drilling, milling, boring, slotting, and general metalworking operations.