Standard drip-feed oilers lubricate single friction points in machinery on stationary industrial equipment, such as gears or bearings. Also called gravity-feed oilers, they permanently install above the highest point on the equipment to allow gravity to power the oiler.

These drip-feed oilers lubricate a single chain or gear as it passes through an attached brush. The oiler is controlled manually or by a solenoid wired to the on/off switch of the equipment so that the oiler only operates when equipment is running. The rate of lubrication on the brush adjusts using a dial on the brush valve.

Air-operated oilers connect to air systems to pressurize the oil in the reservoir and provide a lubricating spray. They are closed to the outside atmosphere to prevent the ingress of dirt and moisture. These oilers feature pressure regulators that adjust the volume of spray. Optional valves connect to the lubricating outlet to control the spray pattern (sold separately). Air-operated oilers are often used to lubricate rollers or large sheets.