Low Volume Thermoforming — Shirley K’s
Low-volume thermoforming without high-volume tooling costs — the affordable path to short runs, prototypes, and niche parts.
Low Volume Thermoforming — Short-Run Plastic Parts Specialist
Most thermoforming suppliers require minimum orders in the thousands — or tens of thousands. Parts transitioning from primary production volumes to aftermarket parts phase often need a new supplier. Shirley K’s specializes in short-run thermoforming: dozens to hundreds of units per order. If your volume doesn’t justify the economics of a large thermoforming program or injection molding tooling, Shirley K’s is a better fit.
Start a Short-Run Project
Call: (740) 868-8140
Low-volume thermoforming example

WHO NEEDS LOW VOLUME THERMOFORMING?
- Products nearing end of life cycle and needing aftermarket parts
- OEM manufacturers with new product introductions where volume is uncertain
- Companies transitioning between suppliers who need bridge production
- Niche industrial products with inherently limited demand
- Products that serve specialized markets without high volume
- R&D and pre-production programs that need real plastic parts before committing to tooling
THE ECONOMICS OF SHORT-RUN VS INJECTION MOLDING
When annual volumes are low, injection molding’s high tooling cost makes per-part economics unfavorable. Thermoforming tooling is significantly less expensive, making the economics work at lower volumes.
Shirley K’s specializes in the volume range where thermoforming makes economic sense — dozens to hundreds of units per order.
SHORT-RUN CAPABILITIES
- Short-run specialization: Dozens to hundreds per order — our core competency
- Tool transfer: If you have an existing tool sitting idle or at a supplier that isn’t competitive for smaller runs, transfer it and get small orders at fair pricing
- Reverse engineering: Need to restart production from a physical part? We build a new tool for short-run production
- In-house CNC trimming: Precision trimming to properly mate up to other components
- Material flexibility: Wide range of thermoformable materials — contact us for your specific requirements
RELATED
- Thermoforming vs Injection Molding
- Custom Thermoforming Overview
- What to Send for a Quote
- Part Design & Development
Start Your Short-Run Project
Call: (740) 868-8140
Common Questions About Low Volume and Short Run Production
What is considered a low volume plastics program?
Low volume generally describes annual quantities that fall below the point where injection mold tooling can be justified on piece-price savings alone. The exact threshold depends on part size, complexity, and how long the program is expected to run.
Why is thermoforming often used for short runs?
Thermoform tooling is typically single-sided and less costly to produce than a matched injection mold, so the fixed cost spread across a smaller quantity stays manageable. That tooling economics difference is the main reason the process suits short runs.
How does order quantity affect plastic part cost?
Total cost per part combines the amortized tooling investment with the per-piece production cost. At low quantities the tooling share dominates, so a lower-cost tool matters more than a lower piece price. As quantities rise, piece price gradually becomes the deciding factor.
What is a bridge production program?
Bridge production supplies parts between prototype validation and full-scale manufacturing. It lets a product reach customers while higher-volume tooling is still being built, and it allows design refinements to be absorbed before committing to expensive hard tooling.