Question_&_Answer_log.docx

DOCX document 16 KB Posted May 12, 2017

Attached to: WVA VERTICAL MILLING MACHINE
Solicitation number: W56HZV-17-R-0066
Issued by: Department of the Army Materiel Command Contracting Command Detroit Arsenal

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Other files

File	Type	Posted
W56HZV17R0066-0002.pdf	PDF	Jul 11, 2017
Question_&_Answer_log.docx	DOCX document	May 19, 2017
Control_Spreadsheet_for_specification_3-16-3417.xls	XLS spreadsheet	May 19, 2017
SOW-_Vertical_Milling_Machine.doc	DOC document	May 19, 2017
Comply_Sheet_WVA_Vertical_Mill_Spec_3-16-3417.xlsx	XLSX spreadsheet	May 19, 2017
W56HZV17R0066.pdf	PDF	May 18, 2017
W56HZV17R0066.pdf	PDF	May 5, 2017

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W56HZV-17-R-0066 – Vertical Milling Machine

Question and Answers Log:

Question:

In evaluating your solicitation request, it is hard to determine if the axis descriptions are in Inches or feet. These are found on page 30 of the solicitation.

Answer:

Travels:

a.) X Axis (column in/out)	28.7”
b.) Y Axis (saddle left/right)	20.1”
c.) Z Axis (ram up/down)	20.1”
d.) B Axis	+160°, -180°
e.) B Axis min. indexing increment	0.001°
f.) B Axis rotational speed	50 RPM
g.) C Axis	360°
h.) C Axis min. indexing increment	0.001°
i.) C Axis rotational speed	1,200 RPM
j.) C Axis motor	Direct Drive

Pallets:

a.) Size	Ø19.7”
b.) Max Weight on Table	≥550 lbs.
c.) Height from floor to work surface	37.4”
d.) Number of T-Slots	5 evenly spaced
e.) T-Slot will be Precision	0.7086” +0.0005”
f.) Parallelism T-Slots	0.0005”/foot
g.) Max. Workpiece Height	≥15.7”
h.) Max. Workpiece Swing	≥ Ø27.5”

Spindle:

a.) Taper Size	#40
b.) Max Spindle Speed	20,000 RPM
c.) Max Spindle Torque	87 ft-lb
d.) Spindle Motor Max. Rating	30/24.7 hp
e.) Spindle Cooling	Oil Cooled

Feedrates:

a.) Rapids on X Axis	≥ 1,968 in/min
b.) Rapids on Y Axis	≥ 1,968 in/min
c.) Rapids on Z Axis	≥ 1,574 in/min

Tool Changer:

a.) Capacity	181 Tools – Chain Type
b.) Tool Type / Taper	BT-40
c.) Tool Diameter Std (w/adj. tools)	≥ Ø3.5”
d.) Tool Diameter (w/o adj. tools)	≥ Ø4.9”
e.) Tool Length	≥ 11.8”
f.) Tool Weight	≥ 17 lbs.

Accuracy:

a.) Positioning (X, Y, Z)	0.0002” (not to exceed 0.0006 over full travel)
b.) Repeatability (X, Y, Z)	0.00015”
c.) Circular Deviation (XY, YZ, ZX planes)	0.00025”
d.) B Axis Positioning	20 sec.
e.) B Axis Repeatability	14 sec.
f.) C Axis Positioning	10 sec.
g.) C Axis Repeatability	7 sec.

Alignments:

a) X, Y, Z Axis Squareness	0.00025” per 12”
b) Parallelism between Spindle and Z Axis	0.0003” over 12”
c) Runout of Spindle Taper	≤ 0.0001” TIR at Spindle Face, ≤ 0.0003 at 12” from Spindle Face
d) Height Variation among Pallets	≤ 0.0006” (Max. difference between all pallets)

Question:

Looking over your request on the Sol.# W56HZV-17-R-0066 , having a little trouble finding that Model. Wondering if a DMG Mori , Model # DMC65FD monoBLOCK , would be a formidable replacement? Again Thank you for your time on this matter! Kim Simons

Answer:

That "model number" should not be posted. This solicitation does not call for a specific model number, only that in meets the specifications stated within. Amendment has been posted.

File details come from the government source that posted it. Updated Nov 14, 2017.