CJ Precision Industries Inc.
CJ Precision Industries is a family run job shop that specializes in long or short run machining. For over thirty years CJPI has serviced customers in the aviation, oil services, and industrial valves and can forming systems. We are 12,000 square foot facility conveniently located near the 405, 710 and 605 freeways in the city of Signal Hill, California.
CJ Precision Industries started in 1980 as CJ Grinding. It was a one man grind shop owned and operated by Mike Vedder,
Sr, who began working as a machinist at age 18. Through the years he has added CNC turning and milling to accommodate
our customer’s needs.
CJ Precision currently has a quality control manual that is in compliance with MIL-I-4508 and calibration that is in
compliance with MIL-STD-45662. Our quality system has all procedures from receiving to shipping. Quality is our number
Our in house capabilities include the following: CNC turning, CNC milling, OD. ID and surface grinding, conventional
turning and milling. We also handle material purchasing, honing, plating, painting, heat treating, and welding as