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Jet Geared Head Mill Drill with Power Downfeed DP700
- $4,685.00
- Brands JET
- Product Code: 351153
- Availability: In Stock
JET Geared Head Square Column Mill/Drill with Power Downfeed, DP700 2-Axis DRO & X-Axis Powerfeed Product Overview The JET JMD-45GHPF Geared Head Square Column Mill/Drill is a heavy-duty machine designed for precision drilling and milling in demanding shop environments. This configuration combines a power downfeed, Newall DP700 2-axis digital readout, and X-axis powerfeed to improve control,..
Features of Jet Geared Head Mill Drill with DP700 DRO
JET Geared Head Square Column Mill/Drill with Power Downfeed, DP700 2-Axis DRO & X-Axis Powerfeed
Product Overview
The JET JMD-45GHPF Geared Head Square Column Mill/Drill is a heavy-duty machine designed for precision drilling and milling in demanding shop environments. This configuration combines a power downfeed, Newall DP700 2-axis digital readout, and X-axis powerfeed to improve control, positioning accuracy, and productivity.
Its square column with dovetail ways provides a rigid structure, while the six-speed geared head delivers mechanical power directly to the cutting tool. The R8 spindle accepts a broad range of standard milling tooling, making the machine suitable for both drilling and milling operations.
Key Features
- Heavy-duty square-column mill/drill design
- 1-1/2-inch drilling capacity
- 1.5 HP motor
- 115/230V, single-phase power
- Six-speed geared-head transmission
- 65–1,550 RPM spindle-speed range
- Newall DP700 2-axis digital readout
- X-axis powerfeed
- Power downfeed
- R8 spindle taper
- 5-inch spindle travel
- Head tilts 90° left and right
- Square column with dovetail ways
- Built-in calibrated fine downfeed
- Internal depth gauge
- Spindle guard and work lamp
- CSA/CUS certified
- Milling table with longitudinal and cross travel
Technical Specifications
| Specification | Details |
|---|---|
| Brand | JET |
| Model | JMD-45GHPF |
| Stock Number | 351153 |
| Machine Type | Geared-Head Square Column Mill/Drill |
| Drilling Capacity | 1-1/2 in. |
| Face Mill Capacity | 4 in. |
| End Mill Capacity | 3/4 in. |
| Motor Power | 1.5 HP |
| Motor | 115/230V, 1 Phase |
| Spindle Taper | R8 |
| Spindle Travel | 5 in. |
| Quill Diameter | 3 in. |
| Spindle Speeds | 6 |
| Speed Range | 65–1,550 RPM |
| Head Tilt | 90° Left/Right |
| Table Size | 9-1/2 x 32-1/4 in. |
| X-Axis Travel | 20-1/2 in. |
| Y-Axis Travel | 8-1/4 in. |
| Spindle-to-Table Distance | 18-1/8 in. |
| T-Slots | 4, 5/8 in. |
| Powerfeed | X-Axis |
| Downfeed | Power Downfeed |
| Digital Readout | Newall DP700, 2-Axis |
| Column | 7-7/8 x 7-5/8 in. Square |
| Base Dimensions | 26-11/16 x 15-15/16 in. |
| Overall Dimensions | 29 x 36 x 50 in. |
| Approx. Weight | 820 lb. |
| Stand | Not Included |
The specifications above correspond to the 351153/JMD-45GHPF configuration.
1-1/2-Inch Drilling Capacity
The JMD-45GHPF has a 1-1/2-inch drilling capacity, giving it the capability to handle substantial drilling applications in metalworking environments.
It is also rated for a 4-inch face mill and 3/4-inch end mill, expanding the machine's usefulness beyond basic drilling into general milling operations.
Actual cutting capacity and performance depend on the material, tooling, spindle speed, feed rate, and cutting conditions.
Six-Speed Geared Head
The machine uses a six-speed geared-head transmission with a spindle-speed range of 65 to 1,550 RPM.
Quick-select gear-shift levers allow operators to change spindle speeds without relying on a belt-driven arrangement. The geared head delivers full mechanical power to the cutting tool, making it well suited to heavier drilling and milling work.
Newall DP700 2-Axis DRO
The included Newall DP700 2-axis digital readout provides a clear electronic indication of machine position.
A digital readout can make it easier to:
- Monitor table movement
- Locate machining positions
- Repeat dimensions
- Reduce reliance on manual scale readings
- Improve setup efficiency
- Maintain more consistent positioning
The DRO works with the machine's X and Y axes to assist with positioning during milling and drilling operations.
X-Axis Powerfeed
The integrated X-axis powerfeed automates longitudinal table movement.
Instead of manually cranking the table throughout a cutting pass, the powerfeed provides controlled movement along the X axis. This is particularly useful for longer milling passes and repetitive machining operations.
Benefits include:
- More consistent table movement
- Reduced operator fatigue
- Smoother cutting passes
- Improved productivity
- Greater convenience during repetitive operations
Power Downfeed
The machine also incorporates power downfeed capability, providing controlled spindle movement during drilling operations.
The power downfeed can help maintain a consistent drilling feed and reduce operator effort, particularly when producing multiple holes or working with larger-diameter tooling. A calibrated fine downfeed and internal depth gauge provide additional control during drilling.
R8 Spindle
The R8 spindle taper is widely used for milling applications and allows the machine to accommodate a broad selection of compatible milling tooling.
This makes the JMD-45GHPF useful for operations such as:
- End milling
- Face milling
- Slotting
- Drilling
- Counterboring
- Reaming
- General machining
Tooling must be selected according to the machine's capacity and the manufacturer's recommendations.
Square Column and Dovetail Ways
The square column uses dovetail ways to provide a rigid structure for the head and machining assembly.
This design helps maintain stability during drilling and milling, particularly when the machine is subjected to higher cutting loads.
Adjustable Milling Head
The head can tilt 90° to the left and 90° to the right, providing additional flexibility for angled drilling and milling operations.
This capability allows operators to approach certain workpieces from different orientations without requiring specialized fixtures for every angled operation.
Milling Table
The machine is equipped with a 9-1/2 x 32-1/4-inch table with approximately 20-1/2 inches of longitudinal X-axis travel and 8-1/4 inches of cross Y-axis travel.
The table provides sufficient working area for a variety of general-purpose machining setups while the X-axis powerfeed automates longitudinal movement.
Typical Applications
The JET JMD-45GHPF is well suited for:
- Machine shops
- Metal fabrication
- Industrial maintenance
- Equipment repair
- Manufacturing
- Job-shop machining
- Prototype work
- Custom part production
- General milling
- Precision drilling
Common Machining Operations
Drilling
Produce holes in metal components using appropriate drill tooling and cutting parameters.
Face Milling
Machine broad, flat surfaces using a suitable face mill.
End Milling
Machine slots, pockets, shoulders, and other features with compatible end mills.
Slotting
Produce linear grooves and slots in suitable workpieces.
Counterboring and Reaming
Perform secondary hole-finishing operations using appropriate tooling.
Angled Machining
Use the tilting head to perform selected drilling and milling operations at an angle.
Benefits for Professional Users
Integrated Digital Readout
The Newall DP700 2-axis DRO makes machine-position monitoring easier and supports more efficient setups.
X-Axis Powerfeed
Automates longitudinal table movement for smoother and more consistent milling passes.
Power Downfeed
Provides controlled spindle movement for demanding or repetitive drilling operations.
Rigid Square Column
The dovetail-way square column is designed for stability during precision machining.
Six-Speed Geared Head
Provides a broad 65–1,550 RPM range while delivering mechanical power directly to the cutting tool.
R8 Spindle
Supports a wide selection of commonly available milling tooling.
Large Machining Envelope
The 9-1/2 x 32-1/4-inch table and 20-1/2-inch X-axis travel provide useful capacity for general-purpose shop work.
Maintenance
Regular maintenance helps preserve machine accuracy and reliability.
- Keep the table, ways, and work area clean.
- Remove chips after machining operations.
- Lubricate the machine according to JET's maintenance instructions.
- Inspect spindle and tooling interfaces regularly.
- Check powerfeed operation for abnormal noise or vibration.
- Inspect the geared-head transmission and lubrication.
- Keep the DRO components clean and protected from chips and cutting fluid.
- Inspect electrical connections and controls periodically.
- Verify that the machine remains securely mounted and properly leveled.
- Disconnect electrical power before performing maintenance or service.
Safety Considerations
Always use appropriate eye protection, hearing protection, safety footwear, and task-specific PPE when operating the mill/drill.
Secure the workpiece firmly using a suitable vise, clamp, or fixture. Never hold a workpiece by hand during machining.
Keep hands, loose clothing, jewelry, and hair away from rotating tooling and moving machine components.
Verify that cutting tools are correctly installed and remove all setup tools before starting the machine.
Use spindle speeds and feed rates appropriate for the material and tooling. Do not exceed the machine or tooling's rated capacity.
Stop the spindle completely before measuring, changing tooling, removing chips, or making adjustments.
The machine is specified for 115/230V single-phase electrical service. Electrical installation and servicing should be performed by qualified personnel in accordance with applicable electrical requirements.
Why Choose the JET JMD-45GHPF?
The JET Geared Head Square Column Mill/Drill with Power Downfeed, Newall DP700 2-Axis DRO & X-Axis Powerfeed brings several productivity-focused features together in one heavy-duty machine. Its 1-1/2-inch drilling capacity, 4-inch face-mill capacity, R8 spindle, six-speed geared head, power downfeed, X-axis powerfeed, and 2-axis DRO make it substantially more versatile than a basic drill press.
For professional shops that need a rigid machine for both precision drilling and general milling, the JMD-45GHPF offers a practical combination of mechanical power, positioning assistance, and powered table and spindle movement.