CNC Machined Stainless Steel Instrument Control Knobs

Stainless steel knobs take longer to machine than aluminum because stainless is tougher and work-hardens. We use rigid setups, sharp coated tools and consistent feeds to produce clean surfaces and crisp knurls. Smooth, crevice-free designs are preferred for food equipment, so we avoid deep grooves where residue could collect and radius internal corners for cleaning.

304 stainless suits most indoor instruments and equipment. 316 is better for marine, coastal or chemical washdown environments. Brushed finishes hide scratches, polished finishes clean easily, and passivation restores corrosion resistance after machining. Laser marking produces dark, permanent scales without paint, which is useful where cleaning chemicals would remove printed markings.

Bore fit, set-screw thread and finish quality are checked on every knob, and laser marking is inspected for clarity. Critical dimensions are verified before packing, and material certificates for 304 or 316 are available on request. Typical uses include food processing machine controls, laboratory instruments, marine navigation panels, outdoor lighting controls and medical equipment dials.