January 19, 2022

JET Elite Variable Speed Mill ETM-949EVS

Overview

This JET ETM-949EVS CNC is a heavy-duty milling machine. It has features including an accurate spindle assembly to meet tolerance requirements. The durable design gives high performance to the milling machine.

What makes the milling machine safe is the spindle. The item is too large for the liftgate. For on-site unloading, use a Forklift.

Key features

Horsepower

The milling machine features a 3 HP, 230V, 3-phase motor.

Spindle

Spindle utilizes class 7210 (P4, ABEC-7) precision angular bearings for the industry-leading spindle taper runout of 0.00012inch. The chromium-Molybdenum spindle is hardened through a carbonizing treatment and is grounded to maintain strict tolerances. Increased strength and precision ground for greater accuracy are what you get.

The spindle to prevent accidental startups for safety. The spindle brake is on the left side of the head and moves in either direction to stop the spindle once power is off. The electronic spindle brake interrupts power when activated.

Table

The work table is spacious and accommodates wide and thick materials. It measures 9 inch x 49 inch and is controlled by an advanced double nut design that eliminates end-play for controlled lateral movements.

The hardened and ground table offers a stable and accurate platform for milling materials. The table movement comes in longitudinal movement handles on opposite ends of the table. The stops are on the front of the table.

Table locks are on the front of the saddle used for locking the table in position. They control how far the table travels in either direction. Crossfeed movement is on the front of the knee; controls the Y-axis. The knee handle is on the corner of the knee; controls the Z-axis.

Drive system

The inverter drive system features an LED RPM that provides variable spindle speeds. You do not have to gauge or guess the speed at a given time.

Screws

Thrust bearings support heat treated and polished lead screws. That gives smooth movements of the table under load.

Speed variance

Variable speed pulleys are ground and balanced. It reduces vibration and ensures smooth speed transitions. Switch speeds depending on the material and position you are milling.

Ball-bearing support

The ball bearing support of the motor shaft ensures proper loading, support, and alignment for quiet, accurate operation at any speed.

Lubrication

The mill is automatically lubricated every 30 minutes, with a flow of 3 to 6 cc/cy. Fill oil cups daily with Mobil DTE® Oil Light and the reservoir as needed by removing the cap on top of the tank and filling it with Mobil DTE® Oil Light. Pump oil with release handles daily, and that is how surfaces and lead screws are lubricated. The grease fitting for spindle gear is on the backside of the head’s lower housing. Lubricate every month using Mobilith AW2.

Emergency stop button

Mounted control box houses major mill functions as an emergency stop button. It is activated as soon as you press the button.

Specifications

Weight

Standard mill weighs about 2,000 to 3,000 lbs, depending on the day of manufacture and its options. It weighs up to 2300.0 lbs. Minimal movement is required since it is a heavy-duty machine. Move it, look for a threaded hole on top of the ram that’s a hoist point.

Thread in an eye bolt and start hoisting or moving it manually or use Forklift. The movement depends on the resources you have. The size and durable construction of the milling machine give tremendous support. It handles large and heavier milling machines without damaging themselves.

Horsepower

The 3HP motor design is an NC milling machine for metal processing. Its guideway has high rigidity and high wear resistance. Three-phase motors give better efficiency and power factor than single-phase motors. They are more reliable, lighter, and require minimal maintenance. No capacitor or internal switches are needed.

Speed (RPM)

The speed varies from 60–5,000rpm. The Variable Speed Control is on the right side of the head

assembly. Turn clockwise or counterclockwise to adjust spindle speed. Change speed only when

the spindle is turning. The Variable Speed Dial Indicator is on the front of the head assembly. It indicates the selected speed in the high or low range. What determines the feed and speed, is the material. Consider the tool material, rigidity of the workpiece, size and condition of the lathe, and depth of cut when choosing speed.

Manufacturer’s Warranty

It comes with a three-year warranty. A technical problem that you encounter within twelve months. You have the right to send it back for repair or fixing, ensuring you have a well-functioning milling machine for a long time.

Stand

The Stand gives stability and rigidity to the working machine. The chances are low that it will move during operation.  That is how precision comes to your items.

Drilling Capacity (in.)

A drill press or tapping machine is designed for drilling, but this can be done using a milling machine. The drilling capacity of the milling machine is 3 3/8 quill diameter. Drilling creates a round hole in a workpiece.

Worktable L x W (in.)

The work table is measured 9 x 49inches. The advantage of the workbench is at the center of operation and is a crucial element to safe and efficient production. Ergonomic workbenches support your lean processes. Both ergonomics and lean initiatives have productivity gains as a goal. Optimized performance is what you get from a workbench.

Light

The light is Included in the package for visibility. You are given a chance to witness every movement or process during milling. The chances are low that you will make mistakes. Sometimes daylight is not enough.

Stand

It is also delivered with a stand. A stand makes your work machine sturdy and rigid, thereby maximizing performance.

Durability

A patented vari-disc key provides 10 times the wear resistance than aluminum or brass keys. The stainless steel Y-Axis way cover provides extra years of protection over the standard sheet metal cover.

Pros

  • Visibility
  • Efficient
  • Rigid
  • Speed variance
  • High wear resistance

Cons

  • No additional accessories in the package

Verdict

The JET Elite Variable Speed Mill ETM-949EVS is a competitive, affordable mill machine. It features multiple, advanced features that optimize its performance. The package does not include additional accessories, but the unit is enough for a milling project.

David D. Hughes

Leave a Reply