Attachment 0001 - Purchase Description dated 21 October 2020.pdf

Purchase Description Filling/Pressing Mold For 120mm Canister

September 1, 2020

1. Equipment Description:

Design, fabricate, and assemble a mold for filling and pressing 120mm canisters with pyrotechnic mix.

The 120mm canister is shown in the drawings listed below (Canister, Smoke Assembly drawing). The mold shall be similar in design to the 155mm M1 Canister Fill & Press mold shown in the drawings (31630-ME-3008, Mold, Canister Filling Assembly (M1) 155mm (Sheets 1-4)) provided.

2. Applicable Drawings (Electronic File Names):

Drawing 31630-ME-3008, Mold, Canister Filling Assembly (M1) 155mm (Sheets 1-4) Canister, Smoke Assembly drawing Canister, Smoke drawing Plate Support drawing

3. Minimum Requirements:

The mold shall be similar in design to the 155mm M1 Canister Fill & Press mold shown in the drawings [31630-ME-3008, Mold, Canister Filling Assembly (M1) 155mm (Sheets 1-4)] provided.

a. The contractor will be responsible for redesigning part numbers 5, 12A, 12B and 13 as shown on the drawings so that the finished mold will fit the 120mm Canister shown in the provided drawings. Part number 14 shall be modified adding two drilled and tapped 3/8” x 16 holes through the plate at 1.4” from the center of the 5.625 recess and 180 degrees apart.

b. The filling and pressing molds must be capable of handling the load of pressing pyrotechnic mix into the canister at a pressure of 60 tons.

c. The mold shall be designed to fit the canister prior to pressing and such that after pressing the filled canister will be kick out of the mold by the ejection pin without damaging the canister body.

d. Canisters must maintain their dimensions during the pressing process. The contractor will be required to certify that the molds will withstand the load of the 60 ton presses without breaking or allowing the deforming of the canisters.

e. After the mold has been completed the entire exterior of the mold shall be primed and painted.

f. All surfaces that are not painted will be coated with a rust prohibitor.

4. Drawings:

The contractor will be required to provide a complete set of drawings (assembly and details) for the new 120mm molds. Drawings will be provided in PDF format and also in either Microstation V8 (*.dgn) or AutoCAD (*.dwg) or SolidWorks 2019 formats. Drawings will be clearly identified with a contractor supplied number (31630-ME-3009) and a title that describes the contents of the drawing. Electronic drawings will include the number and the title as the drawing file title in order to make finding drawings easier. Drawings will be the property of Pine Bluff Arsenal and may be used as needed.

5. Identification:

The mold will be identified as to what it is for, i.e. 120mm F-P. Identification can be made by securely fastening a name plate to the exterior of the mold or etching or stamping the mold. Etching or stamping must be readable even after painting.