SOW2012CMXG1.pdf

4-Roller Sheet Metal Bending Machine Statement of Work with Specification

SOW2012CMXG1

1.0 SCOPE:

1.1 GENERAL. This Purchase Description sets forth the minimum requirements for the procurement of a 4-Roller Sheet Metal Bending Machine. This machine’s purpose is to roll-form very long sections of sheet metal, creating smooth curvatures of sheet metal for Air Force aircraft structures.

The machine must be industrial strength, durable, and manufactured to the highest quality to meet

Air Force aircraft tolerances.

1.2 INTENDED USE. This machine will be installed in Sheet Metal Manufacturing Shop, Building

9001, Tinker AFB, OK. It will transform flat metal panels into complex shapes, with one curvature smoothly transitioning into the next curvature. Curvatures required will be of tight radius, approaching 3.05 inches (6.10 inch diameter).

2.0 APPLICABLE DOCUMENTS:

2.1 GOVERNMENT DOCUMENTS. This purchase description shall be the governing document for the system, and installation requirements in effect on the date of invitation for bids, or request for proposals, form a part of this description to the extent specified herein.

3.0 GENERAL REQUIREMENTS:

3.1 Electrical Requirements: Machine shall be UL listed requiring only a 480VAC/3 phase/60 Hz electrical service.

3.2 Air Requirements: If pressured air supply is needed, machine must operate with a shop air supply rated at 100 PSI requiring less than 10 CFM.

3.3 Safety: Belts, pulleys, gears, couplings, projecting setscrews, keys, and electrical power sources so located that any person may come in close proximity thereto shall be guarded. The guards shall meet OSHA 1910.212. OSHA 1910.219 Mechanical power-transmission apparatus shall guard all moving power transmission parts within 7 feet of the floor.

3.4 Electrical Safety: Machine shall include provisions to isolate and lock out all sources of hazardous energy, either input to the machine or generated by the machine, to ensure safety of the maintenance personnel. The electrical input panel must comply with OSHA 29 CFR 1910.147 lockout/tagout requirements.

3.5 Operator Safety: The operation of this machine shall require no special Personal Protective

Equipment beyond safety eyeglasses. An “Emergency Stop (E-STOP) Button or Emergency Stop

(E-STOP) Bar/Cable must be provided within 24” of both ends of the rollers that immediately inhibits further roller movement if the E-STOP is activated.

4.0 SPECIFICATIONS: The 4-Roller Sheet Metal Bending Machine must be new, unused and a current production model. This machine shall meet or exceed the following requirements:

- Fully Hydraulic Powered Rollers and Hydraulic Powered Actuation Adjusters.

- Must possess 4 rollers; 3 roller models are not accepted.

- Infinitely variable drive speed 0-20 feet/min, forward & reverse, with anti-slipping system

- Top (central) roller diameter no larger than 6.1 inches.

- Roll Bend sheet metal to a minimum diameter of 6.1 inches.

- Length of sheet metal to be accommodated = 120 inches or greater *

- Thickness of metal formed is 0.032 inch through 0.125 inch, 2024-T3 aluminum alloy.

- Digital displays, one located at each end of side roll. Display units in “inches”, showing sheet metal position information.

- Precision Glass Scale Encoder or Rotary Position Encoder, located at each end of roller, accurate to +/- 0.001 inch.

- Parallel adjustment of side rolls controlled by push buttons.

- Control Console located at ergonomic height.

- 6 horsepower electric motor, energy savings design.

- Data Input and Output shall be displayed in English language.

- Forged Heat Treated Steel Rollers, Crowned, and Heat Treated to 56-58 Rockwell C Surface hardening. Rollers must be Finish Ground smooth.

- Fully Welded Steel Frame.

- ABEC 5 specification or better, High Precision Bearings in all journals.

- Hydraulic pressure at 2900 psi, and hydraulic flow greater than 3 gpm.

- Forms on all metals: steel, aluminum, titanium, and alloys without deleterious effects on the metal.

- Easy to operate. Operator must need only high school education.

* Length is measured left to right, perpendicular to feed direction of rollers.

5.0 INSTALLATION AND START-UP REQUIREMENTS:

No Installation services are included in this purchase.

Operator’s manual, training manuals, and maintenance manual shall be provided. Provide replacement parts list and figures.

A video or interactive CD may be provided at no additional cost to the government.

WARRANTY: The contractor shall provide an industry standard warranty for the purchased equipment. The warranty period shall start from the date that the equipment is installed and accepted by the Tinker Air Force Base engineer. The contractor shall perform all warranty repair, rework, or replacement at Building 9001, Tinker Air Force Base, Oklahoma. The Contractor shall provide parts, labor, transportation, and expenses incurred during the warranty period. The contractor shall not charge the government any travel expenses to perform warranty service.

6.0 ADDITIONAL INFORMATION

Shipping Address: OC-ALC/Sheet Metal MFG Shop

7447 SE 74

th

Street

Building 9001 / Post B-28

Tinker AFB, OK 73145

Point of Contact: Stuart Lew / Engineer/ 405-582-4464

David Mason / Supervisor / 405-582-4881