What is low-volume manufacturing?
Low-volume manufacturing means producing small runs — often tens to a few hundred parts — rather than mass volumes. Cast polyurethane and resin are common choices because mold costs are low and you can change designs without new steel tooling. The challenge is making every part in the batch match.
- Short production runs of functional PU and resin parts
- Bridge production before committing to hard tooling
- Spare parts, fixtures, and end-use components in modest quantities
Why manual small-batch casting is hard
- Part-to-part drift: Hand-mixed cups vary, so hardness and cure differ across the batch.
- Operator dependence: Results swing with whoever is mixing that day.
- Waste: Off-ratio pours become rejects and re-pours.
How Flovv helps
Flovv meters Part A and Part B at a fixed, repeatable ratio and mixes them in-line, so the tenth part matches the first. For many low-volume polyurethane parts this is a simpler alternative to a full vacuum-casting setup, and it removes the variability of manual cups and scales. Compared with hand-casting, you get tighter consistency; compared with industrial injection molding, you skip the tooling cost and lead time.
See the Flovv injection system for low-volume runs, or browse all products.