Custom Plastic Injection Molding

Tool room staffed by Class A toolmakers and tool designers. Unlike many of our competitors, we have a full in-house tool room staffed by Class A toolmakers and supported by talented and experienced tooling designers. Our staff is skilled at helping our customers with their feasibility and product design, new mold builds, mold modifications, and repairs.

Improve production yield and pricing. We compliment and improve production yields and pricing by designing and building second operation fixtures and quality control gauges. We’re here to help you manufacture the highest quality parts from existing molds you provide or from custom molds you ask us to build.


Olsen Tool & Plastics has the capacity for large production runs while still delivering economic proficiency to meet your short run needs.

As a specialist in small components manufacturing, we have a variety of press sizes to meet your needs. Our presses range from 28 to 408 tons. Our product sizes range from miniature up to 37 oz.

Clean Environments

Our facilities are praised for being the cleanest and brightest in the industry. We offer positive flow tables and clean tents for customers who require a step beyond our every-day clean pressroom. We are also able to provide operators with gowns, hair nets and gloves to make sure your parts meet your needs.

Delivery Options

You want low inventory balances while meeting customer demands. That’s why we offer a buffet of delivery options including Dock-to-Stock, Just-in-Time and Kanban. We ship via UPS Ground, UPS Air, FedEx and private freight using boxes and pallets. Local, national and international deliveries are available.

Material Data

Teamwork is critical when choosing a resin. We work closely with our customers and suppliers to help you select the best resin to ensure optimal part performance. Involving our customers and suppliers early in the process shortens product development time and helps optimize mold design and manufacturing processes. We work regularly with a variety of different materials including:

  • High Density Polyethylene – HDPE
  • Low Density Polyethylene - LDPE
  • Nylon
  • Polystyrene
  • Delrin/Acetal
  • Polycarbonate – PC
  • ABS
  • Polypropylene
  • Acrylic
  • Polyester – PBT
  • Glass Filled Compounds
  • Custom colored resins

Secondary Operations

We offer the convenience of a one-stop manufacturing experience, reducing your manufacturing cycle and the time you invest in the manufacturing process while simplifying your list of vendors. Our quality standards are as high for our secondary operations as they are for every other part of the production process. Our secondary operation services include:

  • Assembly
  • Custom bagging
  • Drilling
  • Hot stamping
  • Kitting
  • Taping
  • Ultrasonic welding

Proprietary Fittings

Olsen Tool & Plastics also offers a proprietary line of fittings that is known for being the highest quality in the industry and sold at low, competitive costs. Our extensive fitting lines are offered in polypropylene and nylon.

Do you need a custom fitting not carried in our proprietary line? We are happy to produce it for you to your exact specifications.