CSi works to provide the highest quality plastic components through the companies we represent. Please take time to browse through our site and learn how "The Plastics Professionals" can help you.

DEN HARTOG INDUSTRIES, INC. Producing Ace Roto-Mold, Ace Injection Molding, and Ace Blow-Molding under the corporate Den Hartog Industries banner, DHI has become a nationally recognized leader in the plastics molding industry.

GALLAGHER CORPORATION Gallagher Corporation is a manufacturer of precision, custom formulated, polyurethane components for OEMs. We currently support the production efforts of market leading, industrial companies by providing them with polyurethane components that increase the durability and wear life of their equipment.

LUNDELL PLASTICS Our advanced thermoforming and UHMW shaping technology allows for the cost effective production of large parts  with minimal tooling costs. This means turning your ideas into reality comes standard with competitive pricing and a quick turnaround time with Lundell Plastics.

SUNRISE FIBERGLASS can handle the long production run or the special, one of a kind project. Their 35,000 sq. ft., state-of-the-art molding facility covers all your molding needs. From the smallest part to a 35-foot Yo-yo, Sunrise is able to handle all your project needs.

THE COMPANY

Concept Sales is a company that represents manufacturers in the areas of Rotational Molding, Injection Molding, Blow Molding, Polyurethane, and Thermoforming. We work primarily in the states of Minnesota, Iowa, Nebraska, South Dakota, North Dakota, Illinois, and Kansas.

Company Overview

• Started in 1998.
• Serve over 150 customers in more than a dozen midwestern states.
• Serve the areas of Rotational Molding, Injection Molding, Blow Molding, Thermoforming, and Fiberglass.
• Members of: American Society of Mechanical Engineers (ASME), Society of Manufacturing Engineers (SME), Society of Plastics Engineers (SPE), Manufacturers’ Agents National Association (MANA), Farm Equipment Manufacturer’s Association (FEMA), American Composites Manufacturer’s Association (ACMA).

ROTATIONAL MOLDING

Rotational molding, otherwise known as roto-molding, is a process of plastic manufacturing that produces hollow parts. Although the parts come out of the mold as a hollow piece they can be trimmed or cut to create anything from a speaker housing to a dog house.