Milling Machine Applications
- Heavy-duty face milling, slotting, and profiling on oversized components, fully supported by the 840 lb table load capacity.
- Precision deep-hole boring and repetitive plunging using the precision bored and honed head and three-stage power downfeed.
- Commercial tool, die, and mold manufacturing demanding strict geometric tolerances and chatter-free finishes.
- Versatile machining operations requiring seamless transitions between high-torque low speeds and high-velocity finishing cuts.
Technical Specifications
| Stock Number | JT9-691050 (Model JTM-1050VS2) |
|---|---|
| Machine Type | Variable Speed Vertical Knee Mill |
| Motor Power | 3.00 HP |
| Electrical Configuration | 230V / 460V, Three-Phase (3Ph) |
| Spindle Speed Control | Variable Speed Pulley (Hi/Low Range) |
| Spindle Speed Range | 60 - 500 RPM (Low) / 500 - 4,200 RPM (High) |
| Spindle Taper Size | R-8 (1/8" - 5/8" Collet Capacity) |
| Table Dimensions (L x W) | 50" x 10" (2-1/2" T-Slot Centers) |
| Work Table Load Capacity | 840 lbs |
| Axis Travels | Longitudinal (X): 34-1/4" • Cross (Y): 14-3/4" • Knee (Z): 16-1/8" |
| Quill Properties | 3-3/8" Chromed Diameter • 5" Spindle Travel |
| Max Spindle to Column Distance | 27" |
| Power Downfeed Rates | 3 Stages: .0015", .003", .008" IPR |
| Overall Dimensions (L x W x H) | 63" x 63" x 89" (Gross Weight: 2,568 lbs) |
Performance & Safety Features
- Proprietary Certified Meehanite® Column Castings: Forms an incredibly dense, rigid backbone that absorbs high-frequency vibrations and eliminates cutter chatter.
- High-Capacity Hardened Table: The 10"x50" table and ways are precision ground and hardened to securely handle immense 840 lb payloads without compromising unyielding accuracy.
- Class 7 Spindle Bearings: Ultra-precision bearings support the spindle, ensuring perfect concentricity over a lifetime of high-RPM and heavy-feed usage.
- Chrome Lead Screws: The X and Y axes are equipped with durable chrome-plated lead screws to resist wear and maintain buttery-smooth table traversal.
- Three-Stage Power Downfeed: Features an integrated automatic stop to ensure flawless, repeatable depth control for critical Z-axis plunging operations.
- Included Safety & Convenience Upgrades: Arrives factory-equipped with a highly visible LED worklamp and a spindle guard for increased operator safety.
- Built-In Coolant Reservoir: The casting base features an internal coolant tank, making it incredibly easy to integrate an optional flood coolant pump system.
- One-Shot Lubrication System: Easily routes fresh way oil to critical friction points on the table, saddle, and knee with a single manual pump.
Why Invest in This JET Mill
- The elevated 840-pound table weight capacity vastly outperforms standard mills in its footprint class, allowing your shop to bid on heavier, more complex jobs.
- Delivers true industrial performance via a dependable 3-Phase motor, reducing heat buildup and ensuring maximum power transfer during aggressive cuts.
- Arrives with essential, OSHA-friendly safety features (spindle guard and bright LED worklamp) standard, saving you the hassle of aftermarket retrofits.
- Backed by the industry-leading JET RED ASSURANCE 2-Year Warranty and a highly accessible nationwide parts network.
Official Resources: Download the JET JTM-1050VS2 Product Manual









