ODM Sandblasting Portable Machine Factories & Companies

While both systems use pneumatic propulsion to accelerate particles through a nozzle toward a target surface, their metallurgical intentions and governance differ radically:

• Abrasive Sandblasting: Primarily an abrasive erosion process designed to remove rust, mill scale, old coatings, and contaminants, creating an angular surface anchor profile (roughness Ra) to facilitate mechanical bonding for protective coatings. The quality of blasting is evaluated visually per ISO 8501-1 or SSPC/NACE cleanliness standards.
• Controlled Shot Peening: A cold-working deformation process utilizing spherical conditioned cut wire or cast steel/ceramic beads. Instead of cutting the metal, controlled impacts create overlapping dimples that induce uniform subsurface residual compressive stresses. This retardation layer arrests crack propagation and increases fatigue life in rotating blades, blisks, and landing gear. Shot peening is strictly quantified by Almen intensity (SAE J442) and optical coverage (100% to 200%), not visual cleanliness.

Air consumption depends directly on the nozzle orifice diameter, operating blast pressure, and whether vacuum-recovery return air is also driven pneumatically. For example, a #5 Venturi nozzle (5/16" or 8.0 mm) operating at 7 bar (100 PSI) demands approximately 137 CFM (3.9 m³/min) of air. If an integrated pneumatic vacuum suction pump is driven off the same compressor line, an additional 120–180 CFM is required. Therefore, a portable installation using an 8.0 mm nozzle requires a minimum compressor delivery of 300–350 CFM at 8 bar to avoid line pressure drops that cause erratic grit flow.

KOSHIN operates specialized testing laboratories in Singapore equipped with robotic and portable trial cells. Prospective buyers can submit workpiece blueprints and actual sample components. Our engineering staff carries out Almen saturation curve testing, surface roughness profiling, and metallographic cross-sectioning to establish locked recipe parameters. Following machine assembly, full Factory Acceptance Testing (FAT) is conducted in our integrated production facility, followed by on-site Site Acceptance Testing (SAT) and Nadcap-audit training conducted in over 50 countries worldwide.

KOSHIN systems are routinely engineered to meet the world’s most demanding aerospace, defense, and industrial standards, including AMS 2430, AMS 2432 (computer-monitored shot peening), Boeing BAC 5730, SAE J442, SAE J443, ISO 8501-1 (surface cleanliness), ASME Boiler & Pressure Vessel Code (Section VIII), CE Machinery Directive 2006/42/EC, and ATEX Directive 2014/34/EU for explosive atmosphere compliance.

To enable KOSHIN’s application team to rapidly design and price an optimized turnkey machine, clients should provide: (1) Workpiece 3D CAD/drawings, base alloy, and dimensions; (2) Target surface requirement: required surface anchor pattern (Ra / Rz) or Almen intensity and coverage percentage; (3) Desired media category (alumina oxide, garnet, glass beads, steel shot, ceramic beads); (4) Cycle-time throughput requirements per work shift; (5) Facility physical constraints: available compressor power, floor footprint, crane hook height, and environmental/noise emission thresholds.