Atrump 3VK Rigid CNC Tool Room Knee Mill: Make parts fast! Prototyping, Repair and Production work.
Versatile everyday CNC knee mill with conversational programming and easy setup menus.

3 axis cnc milling machine   Built for CNC with a wide Knee and a wide Saddle this Rigid CNC knee mill provides excellent machining performance. Knee mills still have there place in Jobs Shops and Tool Rooms, a versatile design that has lasted the test of time the knee mill format is the swiss army knife of machine tools.
The Atrump heavy duty K3 frame provides large travels and smooth cutting action while the CENTROID M400 is the most user friendly yet powerful CNC control on the market. This combination is ready to tackle the wide variety of everyday machining challenges faced by a typical job shop. This capable machine can do it all with built in standard features like Threadmilling and Irregular pocket cleanout not found on other machines in its price range. Optional accessories to customize this machine to your specific tasks makes the K3 truly a specialized CNC machine tool. Options like, 3D digitizing, 4th axis 5C collet rotary tables, Engraving, Auto tool measure and many more CNC options add amazing capability to you shop.
3VK Rigid head Specifications
Travels X, Y, Z 31", 15 ", 4.4 "
Knee Travel 16"
Work Table 50" x 10"
Spindle Taper R8 or CAT 30 or NMTB 30
Spindle Motor 3 Hp Inverter
Spindle Speed 4000 rpm , programmable
Spindle Hi / Lo Hi and Lo range for torque multiple
Spindle Quill Diameter 3.375"
Spindle Center to Column 6.875" to 27.875"
Foot Print (floor space) 112L ",57 W ",85 H "
Weight 3100 lbs
Power 208-240 3 Phase AND 220 single phase
Machine Standard Features
High Accuracy Laser tested for accuracy standard.
Spindle Bearings High performance Class 7 Spindle Bearings
Ballscrews High Precision Ground double nut Ballscrews
XYZ axis ways Hardened & Ground w/Turcite B
Table Saddle Wide Y axis saddle and Large Knee design
Casting Design FEA Finite Element Deign, Maximum Rigidity.
Quill Chrome Plated for long term reliability
Casting Meehanite Cast Iron for Max Rigidity and damping
Lube One shot Lubrication
Coolant Programmable Coolant On/Off built in sump
CNC Control Standard Features
Programming Conversational, G codes, CAD/CAM ready
Conversational Large selection of canned cycles, teach mode, math help, graphics, cutter comp and much more..
Screen 15" Color LCD w/ non glare coating
Operator controls Dedicated Jog and control buttons
Servo Motors AC Digital Servo motors w/ auto tuning
Block Throughput Advanced High Speed Block Throughput
Lookahead 2000 line Accel/Decell cutter lookahead
3D machining XYZ High Speed Processing standard
File Transfer USB 2.0 and Ethernet Lan
Program Storage Internal Hard Drive stores programs onboard.
Keyboard Full size qwerty PC keyboard
User Interface Fill in the blank quick Set part and tool setup screens
Tool Check One button stop and restart job at any point
Graphics Advanced G code backplot with cutter comp moves, 2D and 3D views. Display while programming or machining, shows cutters position.
Digital Read Out Displays in Inches or MM & Distance to go
Spindle Speed Programmable spindle speed with override
Homing Auto home remembers part zero positions
Travel limits Hard and Software travel limits
Utilities Backup & Restore setup and programs, Import/Export files, Message Logs
Maintenance Backlash compensation, Drag plot
Future proof Software Updateable
Warranty 1 year Warranty on parts. (service contracts avail.)
3VK Rigid Options
Tool Change Power Draw bar
Coolant Auto Mist or Flood Coolant system
Option Package H Auto flood coolant, auto lube, work light, chip tray
4th axis Rotary Tables Several sizes of Rotary Tables available
4th axis pre-wire 4th amp,connector and software for future use
Digitizing 2D and 3D Digitizing, Copy and Cut.
Auto Tool Measurement Automatically sets tool offsets, w/Batch ATC feature
Jogging Handwheel MPG handwheel with coil cord, XYZW selector
Probing Cycles Automatically sets parts zero positions
Coordinate System Rot. Rotate machine coordinates to match part or vise
Sealed Qwerty Keyboard Full size waterproof qwerty keyboard.
Engraving Engrave Letters, numbers, symbols, import dxf.
Work Cord. Systems 18 Unique part zero locations, w/ memory
Part program size Unlimited program size for 3D work. (large 1Mb is std.)
Vacu Vise Clamps hard to hold parts, flats, plastics
DXF converter CAD to CNC, DXF to G code converter.
High Voltage Operation 440 three phase input voltage
Offline Programming Intercon Conversational for you Desktop PC
CNC Training On site CNC Training, programming and setup
Service Contract 1 yr. Service Contract, includes 1 day training.

Atrump CNC Machine Tools
Pomona, CA

Sales 1- 877- 428- 7867
(909) 623-6887 Phone     (909) 623-2287 FAX