Journeyman Molder​/Molder - 3rd Shift

Job Location:

Corporate - Manitowoc, WI 54220, Position Type:
Full Time, Travel Percentage:
None, Job Category:
General Labor, PRIMARY PURPOSE

Molders produce and assemble sand molds or related components used to manufacture aluminum castings.

• Study work instructions to determine product specifications, tool requirements, and operational sequences.
• Record quantities of materials and finished products, requisitioning additional supplies, as necessary.
• Operates and adjusts controls of heating equipment to cure, dry or bake filed core according to specifications.
• Position core(s) into lower sections of molds and reassemble molds for pouring.
• Move and position work pieces, such as mold sections, patterns, and bottom boards.
• Cut spouts, runner holes, and sprue holes into molds when necessary.
• Position patterns on equipment, materials, or work pieces.
• Maintain a clean and safe working environment.
• Complete daily inspections on tools and equipment, filling out forms when required to do so.
• Maintain housekeeping in the work area at the end of each shift.
• Maintain area per established 6S standards.
• Perform all other duties as assigned by supervisory or leadman personnel.

• Place risers, down sprues, locater bars, filters, and chills into both the cope and drag core boxes prior to pouring sand per work instructions/
• Spray parting agents onto patterns and mold sections to facilitate removal of patterns from molds.
• Make sure core box is placed directly under sand dispenser.
• Use machine to start and stop the sand flow coming from mixer.
• Use a shovel to grab bad sand also known as dust that comes out of sand shoot first. (This is sand that will not harden.)
• When required, use riddle to break up sand before it fills the core box.
• Use compaction table to compact sand into core box pattern.
• Fill core box with sand using hands and tools to spread and pack down the sand. (Tucking)
• Once core box is filled and packed with sand, use compressed air to clean riser and sprue holes.
• Remove riser caps from the riser holes.
• Ram up core.
• Put a board "on top" of drag. (The bottom when flipped on machine)
• Cut spouts, runner holes, and sprue holes into molds.
• Move and position work pieces such as mold sections, patterns, and bottom boards, using cranes, or signal others to move work pieces.
• Place positioning rods into molds per work instructions.
• Assemble the mold per work instructions using paste. (Different pastes depending on job)
• Use a file other hand tools to fix any surface defects.

• Pick up roller from flatbed and place onto conveyor line.
• Prepare mold pattern with necessary filters and screens.
• Grab flask from flatbed and separate halves.
• Position top half of flask on table and set mold pattern (cope side face down) on top half.
• Place the remaining half of the flask on top of the pattern (drag side is face up).
• Position the mold under sand hopper and spray the pattern with parting agent.
• Pull lever to open sand hopper.
• Use riddle to break up large clumps of sand until pattern is covered.
• Fill the remainder of the flask with sand.
• Use bottom board, ramming tools, and/or pneumatic hammer to pack sand on either half of the mold.
• Flip the mold (leaving bottom board under drag) so the cope side is facing up and repeat sand filling process.
• Remove cope half of the flask from pattern and set aside.
• Remove pattern from drag.
• Place necessary cores in the drag half.
• Make sure each half of the mold is in proper condition; pouring holes clear, no missing pattern chunks, etc.
• Use compressed air to clean off loose sand on the drag, cope, and mold pattern.
• Position and place the cope and drag halves together. Use paste as required by work instructions.
• When necessary, place paste onto pouring cups and secure them over the sprue in the mold.
• Shovel extra sand into wheelbarrow.
• Keep track of the number of molds completed and when order is complete switch pattern and gather necessary items (cores, different size flasks, etc.) for next work order.

• Shape sand cores used in molds, using air-set sand mixer and/or shell core blower.
• When necessary, mix sand for certain jobs based on work instructions.
• Remove cores from core boxes and place them into storage boxes or onto racks for transport to molding area.
• Select the appropriate core box from work order and set-up the machine, making all necessary operation adjustments.
• Keep core boxes clean and report any excessive wear or damage to supervisor.
• Report production…