Deep Hole Boring Machines for WVA   3

Background
The U.S. Army Contracting Command – Watervliet Arsenal (ACC-WVA) Contracting Office at Watervliet Arsenal is conducting a market survey to identify capable sources for the manufacture of two deep hole boring machines in accordance with Watervliet Arsenal Manufacturing Engineering Work Group Specification #03-21-3416. The effort is intended to procure two new UNISIG model B500 pull bore deep hole drilling machines or equivalent, featuring a rotating tool and counter-rotating workpiece along with all necessary ancillary equipment, tooling, and features for deep hole boring operations.

Work Details
Two new UNISIG model B500 pull bore deep hole drilling machines or equivalent with rotating tool and counter-rotating workpiece and all necessary ancillary equipment, tooling, and features required to bore the following components:

- 60 mm Inconel 718 tubes: 37″ long, 3.75″ ±0.125″ OD, through-bore diameter 2.215″ ±0.005″, finish RA 63, straightness 0.008″ (air gage)
- 81 mm 4340 steel alloy tubes: 51.85″ ±0.25″ long, bore size 2.78″, bell OD 6.5″ to straight OD 4.6″, through-bore diameter 3.180″ ±0.005″, finish RA 63, straightness 0.03″–0.05″ (laser)
- 120 mm 4340 steel alloy forgings: ~6 ft length, ~150 mm OD, bored to 119.760 +0.127 mm then skived to 120.45 +0.05 mm, finish RA 63, straightness ≤ 0.126 mm T.I.R., forging straightness ≤ 1.5 mm total

Machine capacity:
- Drilling diameter (max solid): 4.9″
- Counter-boring diameter (max): 3.5″
- Swing over bed: 19.7″
- Workpiece length (min): 72″
- Footprint length ≤ 40′

Tool headstock:
- Feed force: 12,027 lb
- Feed/traverse: 197 in/min
- Power: 90 hp (67 kW)
- Torque: 1,401 ft-lb
- Speed: infinitely variable 10–1,000 rpm
- Transmission: single reduction
- Spindle nose: ISO 702/1 A2-8
- Spindle bore: 3.6″

Workpiece headstock:
- Power: 40 hp (30 kW)
- Torque: 1,866 ft-lb
- Speed: infinitely variable 1–275 rpm
- Transmission: single gear reduction
- Spindle nose: ISO 702/1 A2-6
- Spindle bore: 8.5″

Coolant system:
- Flow: 10–140 gpm
- Pressure max: 725 psi
- Pump: 20 hp (15 kW)
- Tank capacity: ≥ 600 gal
- Filtration: 10 micron

Required general characteristics include:
- Cast iron headstock housings
- High-performance AC spindle motors with vector drives
- Servo-driven ballscrew feeds
- Planetary gear reducers
- Digital servo drives
- Hydraulic pressure head carriage
- Automatic lubrication systems
- Six-inch color touchscreen interface with Allen-Bradley PLC, servo and vector drives
- Communications via RS-232 DB9, RJ45 10 Base-T Ethernet, and MTConnect
- Vibration dampener carriage
- Rotating pressure head
- 15″ 3-jaw workpiece chuck
- BTA tube clamp
- Provision of durable tooling, documentation, training and turnkey installation support as specified.

Place of Performance
Watervliet Arsenal, Watervliet, NY

Bidder Requirements
Manufacturers of deep hole boring machines, preferably OEMs or authorized equivalents to UNISIG model B500, are invited to respond.

Interested parties must submit:
- Completed Deep Hole Boring Machine Questionnaire
- Company brochure
- Capability statement detailing manufacturing capabilities
- Completed Offeror’s Statement of Compliance addressing all specification paragraphs
- Prior customer list of essentially identical equipment deliveries
- Completed Supplementary Information Questionnaire
- Foundation narrative if special foundation is required (per paragraph 6.5)
- MSDS sheets for all cutting fluids and consumables

Responses, including any required licenses, certifications or authorizations, are due by May 19, 2021 via email to Mr. Joseph Pokrentowski at joseph.s.pokrentowski.civ@mail.mil.