In operation since 1981, Monarc Industries of Ontario, California, is setting the standard for industrial pulley design. Simply stated, we are designers and manufacturers of the finest product line of wing and drum conveyor pulleys and rolls available. No matter what industry your company is in, you can experience the Monarc Triple Advantage: the highest quality and the fastest delivery at the lowest cost.

DH Casters Inc, formerly Designer’s Hardware, is a family owned and operated business in Ontario, San Bernardino County, California. Since 1985, DH Casters has been manufacturing casters, wheels and specialty hardware for a variety of industries. Our 30,000 square foot warehouse is stocked with over 10,000 high quality casters and wheels available for Fast Shipping. We work closely with our customers on their caster inventory forecasting. This collaborative planning allows us to maintain an adequate supply so the manufacturer can count on an as-needed supply for production from our warehouse. DH Casters has grown into a market leader by listening to our customers and working together on product innovation and improvement. Whatever your application or challenging requirements are, the DH Casters staff takes our partnerships seriously. From sales support to designing custom parts, from conducting ongoing research and development to continuous product testing, we are committed to providing customers with quality products and service to make it easier to locate the right caster, wheel or accessory, support the customer's evolving applications, and achieve a better price. Product development is a priority at DH Casters. Our research and development team is constantly adding to and improving on what was once the standard. All casters, wheels and accessories are tested to meet our rigorous strength and durability requirements. Batch testing during manufacturing and before the items leave the warehouse results in continuous improvements. Collaborating with the customer, our project engineers specify, design, tool and fabricate caster and wheel parts that meet or exceed industry standards. DH Casters works with a broad distributor network in the United States, Canada and Mexico. Our distributors are committed to caster product solutions, service and support, and customer satisfaction. By way of its research & development knowledge base, flexibility in customization, efficient manufacturing, warehouse inventory, trained staff and strong distributor network, DH Casters is ideally positioned to supply products in general manufacturing, material handling companies, waste services, the moving industry, fixture design and fabrication, woodworking and furnishing suppliers, ornamental and hardware manufacturers -- for most industrial and institutional operations.