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JET Variable Speed Geared Head Mill Drill
- $3,505.00
- Brands JET
- Product Code: 351051
- Availability: In Stock
JET Variable Speed Geared Head Square Column Mill/Drill with Power Downfeed Product Overview The JET JMD-45VSPFT Variable Speed Geared Head Square Column Mill/Drill with Power Downfeed is a heavy-duty machine designed for demanding drilling and milling work. Its combination of a variable-speed geared head, R-8 spindle, power downfeed, and rigid square-column construction gives operators the cont..
High Performance Geared Head Mill Drill for Metalworking
JET Variable Speed Geared Head Square Column Mill/Drill with Power Downfeed
Product Overview
The JET JMD-45VSPFT Variable Speed Geared Head Square Column Mill/Drill with Power Downfeed is a heavy-duty machine designed for demanding drilling and milling work. Its combination of a variable-speed geared head, R-8 spindle, power downfeed, and rigid square-column construction gives operators the control and rigidity needed for a wide range of machining applications.
The machine provides a 50–2,500 RPM spindle-speed range, a 1-1/2-inch drilling capacity, and a 4-inch face-mill capacity. The power downfeed is particularly useful for repetitive drilling operations because it provides controlled automatic spindle movement. JET also specifies tapping capability on the JMD-45VSPFT configuration.
The version described here is JET stock number 351164. It is important to distinguish this model from the closely related 351165 version, which adds an X-axis table powerfeed.
Key Features
- Variable-speed geared head provides a broad 50–2,500 RPM spindle range.
- Power downfeed provides automatic spindle movement for controlled drilling.
- Tapping capability is included with the JMD-45VSPFT configuration.
- R-8 spindle taper accommodates a wide selection of standard milling tooling.
- 1-1/2-inch drilling capacity handles substantial drilling applications.
- 4-inch face-mill capacity supports larger surface-milling operations.
- 3/4-inch end-mill capacity is suitable for general milling and slotting.
- Square column with dovetail ways provides a rigid machine structure.
- 20-1/2-inch longitudinal table travel provides useful working range.
- 90° left / 30° right head swivel provides flexibility for angled work.
- Quick-select gear-shift levers allow faster spindle-speed changes.
- Internal depth gauge assists with repeatable drilling operations.
- Built-in work lamp improves visibility around the machining area.
- Forward/reverse spindle operation supports appropriate drilling and tapping work.
- CSA/CUS certified for the specified machine configuration.
Specifications
| Specification | Details |
|---|---|
| Brand | JET |
| Model | JMD-45VSPFT |
| Stock Number | 351164 |
| Product Type | Variable-Speed Geared Head Mill/Drill |
| Power Downfeed | Yes |
| Tapping Capability | Yes |
| Drilling Capacity | 1-1/2 in. |
| Face Mill Capacity | 4 in. |
| End Mill Capacity | 3/4 in. |
| Spindle Taper | R-8 |
| Spindle Speed Range | 50–2,500 RPM |
| Spindle Travel | 5 in. |
| Automatic Spindle Travel | 4-1/4 in. |
| Quill Diameter | 3 in. |
| Swing | 19-11/16 in. |
| Maximum Spindle-to-Table Distance | 18-1/8 in. |
| Table Size | 9-1/2 x 32-1/4 in. |
| Longitudinal Table Travel | 20-1/2 in. |
| Cross Travel | 8-1/4 in. |
| Column Size | 7-7/8 x 7-5/8 in. |
| Base Dimensions | 26-11/16 x 15-15/16 in. |
| Motor | 1-1/2 HP |
| Electrical | 115/230V, 1 Phase |
| Head Swivel | 90° Left / 30° Right |
| Overall Dimensions | 29 x 36 x 50 in. |
| Net Weight | Approximately 833 lb |
| Construction | Cast Iron |
| Spindle Type | Variable Speed, Geared Head |
| Warranty | 2-Year Limited |
The listed specifications are for stock number 351164. JET's documentation identifies the closely related 351165 as the version equipped with X-axis powerfeed, so the two should not be treated as identical configurations.
Variable-Speed Geared Head
The geared head provides a 50–2,500 RPM variable spindle range, allowing the operator to select an appropriate speed for the workpiece, cutter, and machining operation.
Unlike a basic belt-drive mill/drill, the geared-head design provides a direct mechanical drive to the spindle. Quick-select gear controls also make it easier to change between the machine's available speed ranges.
Power Downfeed
One of the machine's main productivity features is its automatic power downfeed. The spindle provides 5 inches of total travel, including 4-1/4 inches of automatic travel.
The powerfeed system offers selectable downfeed rates, allowing the operator to establish controlled spindle movement for repetitive drilling operations. Once the preset depth is reached, the feed mechanism can disengage and retract the spindle.
This makes the machine particularly useful for:
- Repetitive hole drilling
- Controlled-depth drilling
- Production-oriented drilling
- Tapping applications
- Multi-piece machining
- General maintenance work
Milling and Drilling Capability
The JMD-45VSPFT is designed to perform both drilling and milling operations.
Its rated capacities include:
- 1-1/2-inch drilling
- 4-inch face milling
- 3/4-inch end milling
The R-8 spindle taper is a widely used tooling interface, giving users access to a broad range of compatible collets, arbors, chucks, and milling cutters.
Rigid Square-Column Construction
The machine uses a square column with dovetail ways, providing a rigid support structure for the machine head. This construction is intended to help maintain stability during drilling and milling operations.
The machine has a 19-11/16-inch swing and up to 18-1/8 inches of distance between the spindle and table, providing useful clearance for larger workpieces.
Large Worktable
The cast-iron worktable measures 9-1/2 x 32-1/4 inches and provides 20-1/2 inches of longitudinal travel along with 8-1/4 inches of cross travel.
This gives the operator a useful working area for mounting workpieces, vises, clamps, and other compatible workholding equipment.
The table also incorporates four T-slots for securing fixtures and workholding accessories.
Flexible Head Positioning
The head can swivel 90° to the left and 30° to the right, providing additional flexibility for angled machining setups.
The head should be properly aligned and securely locked before beginning any cutting operation.
Convenient Operating Features
JET includes several features designed to simplify everyday operation:
- Internal depth gauge
- Built-in work lamp
- Quick-select gear-shift levers
- R-8 spindle
- Forward/reverse controls
- Power downfeed
- Fine-feed capability
- Square-column construction
- Dovetail ways
- Spindle guard
The JMD-45VSPFT also supports tapping operations, with the machine's forward/reverse functionality helping facilitate the appropriate tapping procedure.
Electrical and Installation Information
The JMD-45VSPFT uses a 1-1/2 HP single-phase motor with 115/230V electrical capability. The listed assembled dimensions are approximately 29 x 36 x 50 inches, while the machine's listed net weight is approximately 833 lb.
The optional JET Mill/Drill Stand, part number 350045, may be shown in product images but is not included as standard with the machine.
Because of its substantial weight, the mill/drill should be installed on a rigid, level support surface capable of safely supporting the machine, workpiece, tooling, and machining forces.
Typical Applications
The JET JMD-45VSPFT is suitable for:
- Professional machine shops
- Industrial maintenance
- Metal fabrication
- Equipment repair
- Toolmaking
- Prototyping
- Small-batch production
- Custom machining
- General drilling and milling
- Tapping operations
Why Choose the JET JMD-45VSPFT?
The JET Variable Speed Geared Head Square Column Mill/Drill with Power Downfeed is built for users who need more capability than a conventional drill press while maintaining a relatively compact machine format.
Its 50–2,500 RPM variable-speed geared head, 1-1/2-inch drilling capacity, 4-inch face-mill capacity, R-8 spindle, rigid square column, and automatic power downfeed make it a versatile choice for professional and industrial metalworking.
For shops performing repetitive drilling, milling, and tapping work, the combination of controlled spindle movement, substantial machining capacity, and rigid construction makes the JMD-45VSPFT a practical all-around machining solution.