H & H Manufacturing & Metal Spinning Inc. – Factory Tour
H & H Manufacturing & Metal Spinning Inc. was started in 1966 by two brothers, Carl and Dave Howard. From its humble beginnings, H & H Mfg. has grown into one of the premier metal spinning shops in Southern California serving customers throughout the United States.
Materials spun include various alloys of steel, stainless steel, aluminum, brass, and copper up to 0.125 in. thick. Blank sizes can be up to 96” in diameter. Finished shapes include cones, hemispheres (up to 36” diameter), cylinders, housings, blower shrouds and a specialty line of retro RLM lighting shades.
Raw materials are received in sheets which are then sectioned into round blanks on a circle shear. Circle sizes are specific to each part.
Additionally, the company has numerous punch presses used to punch holes prior to the spin process.
Product lines the company services are very diversified. The primary focus of H & H Mfg. is the lighting industry. It manufactures a variety of outdoor and indoor lighting fixtures for use in parks, promenades, street lighting, and restaurant and clothing chains. The company also produces a variety of blower rings and shrouds used for oven exhaust fans and other blower applications. Other interesting parts have been copper top and bottom pans for high end bird cages as well as polished stainless steel air filter covers for Harley Davidson Motorcycles. Most spinnings are customer specific and are proprietary to that customer. However, H & H Mfg. owns a variety of toolings that are open to any customer.
Metal spinning flexibility allows for adjustments to a part. It is relatively easy to change the tooling to try something different. The combination of low tooling costs, fast startup and ease of changes to the process are all advantageous to the customer.