Atch 1 - Technical Specifications-Small CNC Vertical Mill.pdf
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- Attached to
- Small CNC Vertical Milling Machine
- Solicitation number
- FA910127QB0XX_Small_CNC_Vertical_Milling_Machine
About this file
This document is a Performance Work Statement (PWS) for procurement of a new Small CNC Vertical Milling Machine at Arnold Engineering Development Complex (AEDC), Arnold Air Force Base, Tennessee.
The contractor shall provide a fully functional, new small CNC vertical milling machine with all materials, labor, and equipment, with refurbished or remanufactured parts expressly prohibited. Key machine specifications include: Meehanite cast iron construction with hardened and ground ways featuring linear roller bearings; a 12,000 RPM maximum spindle with 25 HP minimum drive motor, CAT 40/CAT 40 Big Plus taper, cooled bearings, air blast tool change capability, and through-spindle coolant; a 36" x 14" work table with 30" x 18" x 18" minimum travel in X, Y, and Z axes respectively, supporting a minimum 1,500 lbs load capacity with T-slots; an automatic tool changer magazine holding a minimum of 30 tools weighing up to 17 lbs; and an integrated 4th axis featuring an 8" 90-degree high-speed rotary head with tailstock and 8" diameter 6-jaw chuck. Controls must include the manufacturer's latest version with a 15" minimum color LCD display, 32MB minimum memory, FANUC-compatible programming with conversational capability, DNC functionality with 256MB data server, Renishaw-style probe tooling and tool setter, AC digital servo and spindle drivers, and high-speed 3D machining contour control. Accuracy requirements specify ±0.0003" repeatability and ±0.0003"/12" positioning for X, Y, Z, and A axes.
The contractor shall provide operating, electrical, and maintenance manuals in hard copy and digital formats; lifting, leveling, and floor attachment hardware; 16 retention knobs with a standard tooling package and $10,000 Kennametal tooling certificate; and machine operation compatible with AEDC's 480V, 3-phase, 60 Hz power system. The contractor must provide on-site supervision and installation by factory-trained servicemen at no additional cost, including a two-day initial training beginning at machine startup. Warranty coverage is 24 months from installation date for all components including controls, servomotors, and spindle motor. Contractor must respond to on-site repair service calls within 36 hours and deliver repair parts within 48 hours of order placement. Delivery is FOB Arnold Air Force Base, TN 37389, with the contractor responsible for all preservation and packaging. Post-delivery verification shall include test running and functional accuracy testing in accordance with ISO/ANSI standards.
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Text version
Specifications for Small CNC Vertical Mill at
Arnold Engineering Development Complex (AEDC) Arnold Air Force Base, TN;
Provide all materials, labor, and equipment necessary to provide a new fully functional Small CNC Vertical Milling Machine. Refurbished or remanufactured parts are not authorized for this requirement.
Machining center construction o Base, Bed and Headstock shall be Meehanite Cast Iron o Ways shall be hardened and ground preferably with linear roller bearings o Protective way covers for 3-Axis to protect ways and ball screws
Headstock Specification o Spindle speed 12,000 Rpm Maximum o Spindle bearings shall be cooled o Spindle drive motor 25 HP minimum o Spindle Taper shall be CAT 40/ CAT 40 Big Plus o Air blast required at tool change o Through spindle coolant
Tool Changer (Automatic) o Changer Magazine shall hold a minimum of 30 tools o Changer shall handle tools weighing up to 17 lbs o Changer shall hold tools 3” cutter dia., and 11” in length with adjacent pocket occupied o Changer Magazine shall hold 6” diameter with adjacent pocket empty
Work Table o Work table size X-axis 36” Y-axis 14” o X-axis travel 30” minimum o Y-axis travel 18” minimum o Z-axis travel 18” minimum o Integrated A-axis and tail stock o Table shall support a Minimum of 1,500 lbs o Table equipped with standard “T” slots
4th Axis o 8” 90 Deg. high speed rotary head with continuous machining capability o Tailstock o 8” diameter 6-jaw chuck o All hardware and software required to operate
Controls o Manufacturers latest version with 15” minimum Color LCD o Controls cabinet shall be cooled o Minimum program memory shall be 32MB Memory o DNC Capability o Programming should be compatible with FANUC protocol o Controls equipped with conversational programming capability o Helical interpolation and Custom Macro B o AC Digital Servo & Spindle Drivers o High Speed Machining Capability o Engraving Function o Tool path simulation o Data Server 256MB (DNC) min o Machine shall be equipped with Renishaw style probe tooling for part inspection o Renishaw tool setter o Remove / Disconnect Wi-Fi o Ethernet Connectivity o Simultaneous all axis control o Spindle speed override o Axis feed override o Rapid feed override o Manual pulse generator o High speed 3D machining contour control
Accuracy o Repeatability for X, Y, & Z Axis shall be +/- .0003” o Positioning for X, Y, & Z Axis shall be +/- .0003”/12” o Positioning for A-Axis shall be +/- .0003”/12”
General o Auto Lubrication system o Internal coolant tank o Full coverage removable splash guards o Chip removal auger/conveyor o 24 Retention Knobs o Rigged tapping capability o High pressure coolant 1000 psi o Coolant mist collector o Coolant tank oil skimmer o Upgraded work area lighting o Thermal expansion countermeasure o Chip air blower o Thru spindle air during machining o Work area wash gun o Shower coolant
Contractor shall provide:
o Machine shall be built to NFPA 70 and operate with AEDC power system which is 480V, 3PH, 60 HZ or quote package should include step down transformer to machine operation voltage.
o Machine quote shall include 16 of the required retention knobs o Operating Manual, Electrical Manual, maintenance Manual, & Schematics, hard copy and digital o Machine shall be equipped with A-axis capabilities o Machine shall include lifting, leveling, and floor attachment hardware o Standard tooling package turret tool holders applicable for this machine. Include a $10,000 Kennametal Tooling Certificate
Verification After delivery the Contractor shall test run the machine at the site in accordance with functional tests for accuracy required by ISO/ANSI Standards.
Warranty o This machine shall be warranted against any defects in material, parts, and workmanship for 24 months after the date of installation. The control, servomotors and main spindle motor are warranted against defects in material, parts, and workmanship for 24 months after the date of installation.
Maintenance, Parts and Service o The Contractor or representative shall be capable of responding to a repair service call on-site within 36 hours and repair parts delivery within 48 hours after placement of order.
Packaging/Delivery o Provide all preservation, packaging, and packing to ensure safe delivery of the machine and related components to AEDC (FOB Arnold Air Force Base, TN 37389). Deliver Machine to AEDC for off-loading by AEDC personnel.
Installation/Training o Installation will be at the Arnold Air Force Base, TN; Arnold Engineering
Development Complex’s Model Shop, West Shop, Building 451. Installation of the machine shall be accomplished by Model Shop personnel and supervised by factory trained servicemen. This service shall be included in machine cost.
Installation kit shall be provided in machine cost. Two-day initial training on machine features and operation shall be accomplished beginning at machine startup following machine installation and shall be included in machine cost.
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