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Selecting the right shot blasting machine for steel plates requires considering the following key factors:
Workpiece characteristics:
Complexity: If the workpiece has deep holes, grooves, or cavities that need cleaning, it is more appropriate to choose equipment capable of rotation or oscillation (e.g., hook-type or chain-indexing systems). Fragile or precision workpieces (such as thin-walled or machined parts) require gentler handling methods (e.g., hook-type or rotary-table systems).
Type: Steel plates are typically plate-shaped workpieces suitable for pass-through, rotary-table, crawler-belt, or tumble-belt shot blasting machines.
Size and weight: The maximum length, width, and height of the workpiece, as well as the weight of a single part, determine the size of the blast chamber and the load-bearing capacity of the conveyor system.
Production requirements:
Batch size: Small batches and diverse product types are well-suited for hook, rotary-table, or trolley-type equipment, as these systems offer high flexibility and accommodate manual loading and unloading.
Production rate: The number of workpieces requiring cleaning per unit of time determines the equipment's required production capacity.
Future planning: Consider whether production growth is anticipated and whether the equipment offers sufficient capacity headroom.
Cleaning requirements:
Cleanliness and roughness standards: e.g., Sa2.5, Sa3, etc.; these influence the number, power, and projection angle of the blast wheels.
Surface strengthening: To enhance fatigue strength, precise control over shot velocity, flow rate, and coverage is required.
Cleanliness grade standards: such as ISO Sa grades or SPSS grades; these influence the choice of shot blasting machine and the cleaning duration.
