CYLINDER, GAS

618 071 59A CYLINDER, GAS A gas cylinder like this one plays a vital role in the hydraulic system of a rock drilling rig, often acting as an accumulator. It stores hydraulic fluid under pressure, using a pre-charged gas (typically nitrogen) separated by a piston or bladder. This stored energy is then released to absorb pressure spikes, dampen pulsations, and provide auxiliary power when needed. In a drifter, for example, it helps maintain consistent impact energy, which is essential for effective rock penetration.

Proper functioning of the gas cylinder directly impacts both drilling performance and the lifespan of other hydraulic components. By smoothing out pressure variations, it protects pumps, valves, and hoses from premature wear caused by shock loads. An effective accumulator also contributes to a more stable drilling process, reducing vibrations that can affect operator comfort and machine integrity. If the gas charge is lost or the internal components fail, the drifter's impact power will drop significantly, leading to slower drilling and increased stress on the entire system.

Regular checks of the gas pre-charge pressure are crucial for maintaining optimal performance. A common symptom of a failing gas cylinder is a noticeable decrease in drilling speed or an increase in erratic behavior from the drifter. If the internal bladder or piston seal fails, the gas charge can escape, rendering the unit ineffective. When replacing the unit, always ensure the new gas cylinder is correctly pre-charged to the manufacturer’s specifications for the specific drilling application.