
Injection Molding
PREMOLD CORP
W395N5657 Frontier Rd, Oconomowoc, WI 53066, United States
- Founded 1995
- ISO 9001:2015, UL Recognized
About PREMOLD CORP
Premold Corp was founded in 1995 by Ken Schweitz in Oconomowoc, Wisconsin. The privately owned company operates two facilities in Oconomowoc and a third in Monterrey, Mexico. The company specializes in reaction injection molding, producing rigid polyurethane parts for low-volume and prototype applications. Its capabilities span in-house tool making with CNC-machined aluminum molds, cast urethane and stereolithography prototyping, short-run production with just-in-time delivery, finish painting using Sherwin Williams Polane coatings, UL-recognized EMI shielding, silk-screen and pad-print graphics, and full assembly including procurement and sub-assembly. The RIM process allows complex geometries, varying wall thicknesses without sink marks, and molded-in features that eliminate secondary machining. Premold serves a range of industries with a focus on medical and laboratory instrumentation, supplying molded housings, bezels, and skins. Customers include medical device manufacturers requiring custom low-volume polyurethane components. The company differentiates itself through a single-source model that integrates tooling, molding, finishing, and assembly under one roof, reducing lead times and enabling design-for-manufacture collaboration from prototype through production.
Manufacturing capabilities
Core processes
Finishing & coating
Industries served
- Medical
- Laboratory Instruments
Materials
Rigid polyurethane (RIM) · Cast urethane (prototyping) · Aluminum (tooling) · Silicone (prototype molds) · Sherwin Williams Polane paints · EMI shielding coatings
Equipment
- CNC machining centers
- Stereolithography (SLA) machines
- Wet spray painting equipment
Company details
- Location
- Oconomowoc, Wisconsin
- Founded
- 1995
- Production volume
- Prototype to low-volume production (thousands of cycles)
- Lead time
- Short lead times for prototypes; just-in-time delivery for production
- Tolerances
- Tight tolerances
- Certifications
- ISO 9001:2015, UL Recognized, CTPAT, IMMEX, OEA Mexico
Frequently asked questions
Where is PREMOLD CORP located?
PREMOLD CORP is located at W395N5657 Frontier Rd, Oconomowoc, WI 53066, United States.
What does PREMOLD CORP do?
PREMOLD CORP is listed under Injection Molding, and its listed capabilities and products include Reaction Injection Molding (RIM), High Pressure Injection Molding, Tool Making (CNC machining of aluminum molds), Prototyping (cast urethane, stereolithography), Short Run Production and Finish Painting (wet spray).
What industries does PREMOLD CORP serve?
PREMOLD CORP lists Medical and Laboratory Instruments among the industries it serves.
What certifications does PREMOLD CORP have?
Certifications on file for PREMOLD CORP: ISO 9001:2015, UL Recognized, CTPAT, IMMEX and OEA Mexico.
When was PREMOLD CORP founded?
PREMOLD CORP was founded in 1995.
How do I request a quote from PREMOLD CORP?
Use the Request a quote button on this page to send PREMOLD CORP your requirements through FirmsLedger, or call (262) 569-9044 and visit premoldcorp.com.
What companies are similar to PREMOLD CORP?
Other Injection Molding companies in Wisconsin listed on FirmsLedger include Revtech Manufacturing, Injection Molding Solutions and Vico Plastics.