Atch 01 Rqmt Doc for Machine Shop Lathe.docx

Requirements for Large Swing Heavy Duty Standard Lathe Background:

The 704th Test Group’s (704 TG) mission is to be the premier provider of unique test and evaluation capabilities relevant to tomorrow’s warfighter through world-class people improving technical excellence, cost-effectiveness, and agility. The National Radar Cross Section (RCS) Test Facility (NRTF) is assigned to the 704 TG. The NRTF securely provides our national defense partners with accurate, impartial, and timely: RCS Measurements, Antenna Patterns, and Comprehensive Data Products.

The NRTF requires a large swing lathe to enable NRTF to machine large diameter parts required to mate with target bays. These parts include adaptor plates, rotator bays, lift fixture components, closeout plates and slip ring interface parts.

1. Operational Requirements:

The vendor shall deliver one lathe that meets the following requirements:

1.1 Must be a large swing heavy duty standard lathe capable of milling hard steel and aluminum

1.2 Largest swing over bed ≥ 60”

1.3 Largest swing over crosslide ≥ 47”

1.4 Max center distance ≥ 69”

1.5 Max working diameter 54”

1.6 Max working length ≥ 36”

1.7 Max unsupported weight in chuck ≥ 500 lbs

1.8 Max weight between centers ≥ 2000 lbs

1.9 Spindle bore > 6”

1.10 Spindle speed > 4 - 420 rpm

1.11 Motor ≥ 30 hp

1.12 Chuck size ≥ 36”

1.13 Chuck type – 3 & 4 jaw

1.14 Tailstock

1.15 Steady rest

1.16 Quick change tool post

2. Delivery:

To be delivered 180 Days ADC to:

1644 Vandergrift Road Bldg. 1262 Holloman AFB NM 83330-7850