JET ETM-949EVS Elite 9x49 Electronic Variable Speed Mill (230V, 3Ph) - MPN: JT9-894050 - is a professional-grade milling machine from JET engineered for operators who demand precision, durability, and smooth performance across a diverse variety of materials. Built with Certified Meehanite castings and an electronically controlled variable speed drive, this 3 HP mill delivers industry-leading spindle accuracy, automatic lubrication, and comprehensive operator safety features that set it apart in demanding shop environments.

Key Features

• Ball bearing support of the motor shaft ensures proper loading, support, and alignment for quiet, accurate operation at any speed
• Heat treated and polished lead screws are supported by thrust bearings ensuring smooth, incremental movements of the table under load
• Seamless, one-piece, steel quill is induction hardened and chromed for increased strength and precision ground for greater accuracy
• Stainless steel Y-Axis way cover provides extra years of protection over the standard sheet metal cover
• The mounted control box houses major mill functions as well as an emergency stop button
• The table and saddle backlash is controlled by an advanced double nut design that eliminates end-play for precisely controlled lateral movements
• Variable speed pulleys are ground and multiplane dynamically balanced, reducing vibration and ensuring smooth speed transitions
• Certified Meehanite castings deliver exceptional rigidity and vibration dampening throughout the machine structure
• Electronic spindle brake prevents accidental startups for enhanced operator safety
• Hardened and ground table surface ensures a consistently flat, durable work platform
• Patented vari-disc key provides up to 10 times the wear resistance than aluminum or brass keys
• Fully hardened Chromium Molybdenum spindle meets strict tolerance requirements and utilizes class 7210 (P4, ABEC-7) precision angular bearings for an industry-leading spindle taper runout of 0.00012"
• Y- and Z-axis ways are hand scraped to a minimum of 16 points per square inch for greater oil retention and smooth movements
• Automatic lubrication delivers 3 to 6 cc/cy every 30 minutes to keep critical components protected during extended operation
• CSA/CUS Certified for operator safety and compliance; includes a spindle safety guard

Specifications

• MPN: JT9-894050
• Stock Number: 894050
• Motor: 3 HP, 230V, 3 Ph
• Amperage Draw @ 230V 3Ph: 18
• Collet Capacity: 1/8 - 7/8
• Distance Spindle to Column (Max.): 21-2/5 in.
• Max Distance Spindle to Table: 18-3/4 in.
• Overall Dimensions (L x W x H): 68 x 63 x 84 in.
• Country of Origin: Taiwan
• Prop 65: Cancer

Frequently Asked Questions

What makes the spindle on the JET ETM-949EVS exceptionally accurate?

The seamless, one-piece, steel quill is induction hardened and chromed for increased strength, and precision ground for greater accuracy. Additionally, the fully hardened Chromium Molybdenum spindle utilizes class 7210 (P4, ABEC-7) precision angular bearings, achieving an industry-leading spindle taper runout of 0.00012".

How does the ETM-949EVS minimize backlash during table movements?

The table and saddle backlash is controlled by an advanced double nut design that eliminates end-play for precisely controlled lateral movements. The heat treated and polished lead screws are also supported by thrust bearings, ensuring smooth, incremental movements of the table under load.

What safety features are built into the JET ETM-949EVS?

The mounted control box houses major mill functions as well as an emergency stop button for quick shutoff in critical situations. An electronic spindle brake prevents accidental startups, and the machine is CSA/CUS Certified and comes with a spindle safety guard for comprehensive operator protection.

How does the variable speed system on this mill reduce vibration?

The variable speed pulleys are ground and multiplane dynamically balanced, reducing vibration and ensuring smooth speed transitions across the entire operating range. Ball bearing support of the motor shaft further ensures proper loading, support, and alignment for quiet, accurate operation at any speed.