Marine docks are critical infrastructures that face constant exposure to saltwater, heavy mechanical...
Drilling Rig Casting Steel Parts
Heavy Duty Drill Bushing
Heavy-duty drill sleeves are large, cast steel drill sleeves used in drilling equipment. They are typically used to guide tools such as drill bits during high-intensity machining operations and offer increased load capacity and wear resistance.
Features of Heavy-Duty Drill Sleeves
Material: Made of cast steel (such as malleable cast iron or ductile iron), with a hot-dip galvanized surface for enhanced corrosion resistance.
Construction: Designed with a solid core or triangular holes, they are suitable for high-intensity applications such as rotary drilling rigs and other heavy equipment.
Function: Secured to the drill template via an interference fit, they ensure accurate tool axis positioning while also improving rigidity and vibration resistance during machining.
Differences from Standard Drill Sleeves
Due to their thicker material and construction, heavy-duty drill sleeves offer the following key advantages:
Suitable for larger diameter or deeper hole drilling
Can withstand higher drilling pressure and torque loads
More complex surface treatment (e.g., zinc coating thickness ≥ 120g/m²)