Mars Plastics

About Mars Plastics

Mars Plastics operates from Providence, Rhode Island, with a second facility in nearby Cranston. The company has over 50 years of injection molding experience and remains a family-owned business passed through generations. Founded as a molding operation, it has grown into one of the largest injection molders on the East Coast, serving customers ranging from individual inventors to major retailers. The company runs a 100,000-square-foot facility operating 24 hours a day, seven days a week. Its equipment lineup includes 40 injection molding machines — 36 in Providence and four in Cranston — ranging from 12 to 1,400 tons of clamping force with shot capacities up to 160 ounces. Core processes cover conventional injection molding, gas-assist molding, over-molding, insert molding, and two-color molding. In-house capabilities extend to tool design and machining, design engineering with CAD and simulation, finishing (trimming, painting, printing, plating), assembly, and work-cell manufacturing that integrates decorating and packaging. A recent addition is 3D printing for rapid prototyping and low-volume production. Mars Plastics serves retail giants such as Target and Walmart as an authorized manufacturer, along with a broad base of corporate clients and startup inventors. The company has helped numerous small concepts scale into industry leaders and has guided established corporations in reshoring production from overseas to its Rhode Island plants. Its contract manufacturing services support third-party brands across consumer goods and other sectors. The company emphasizes a dedicated inside representative for every customer, continuous reinvestment in new molding machines and robotic automation, and a quality system that retains first and last shots from each run alongside statistical process control. Work-cell manufacturing is cited as a key differentiator that allows Mars to compete with overseas facilities on cost and lead time.

Equipment

• 40 injection molding machines (12–1,400 tons, up to 160 oz shot capacity)
• Gas-assist injection molding machines (800–1,200 tons, up to 180 oz)
• Robotic production cells
• 3D printing equipment
• In-house tooling design and machining centers

Company details

Location

Providence, Rhode Island

Company type

Manufacturer

Ownership

Family-owned

Listed under

• Injection Molding in Rhode Island
• Plastics & Packaging Manufacturers in Rhode Island

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