In the manufacturing and maintenance scenarios of construction machinery, shield tunneling equipment, hydraulic pipelines and aerospace pipe fittings, iron chips, oxide scale, cutting oil contamination and welding slag debris often remain on the inner walls of metal steel tubes after bending. Traditional purging and brush cleaning methods struggle to remove stubborn contaminants inside complex bent pipes and multi-bend pipelines. Inadequate cleaning directly causes valve blockage and hydraulic system abrasion, undermining the reliability of the whole machine. The APS AM-2 pipe cleaning gun paired with dedicated foam projectiles stands out as the preferred solution for inner-wall cleaning of bent steel tubes.

The APS AM-2 pipe cleaning gun works on a pneumatic launching principle with easy operation and compatibility with most sizes of metal steel tubes. Load a foam projectile matching the pipe inner diameter into the gun, connect compressed air, and pull the trigger to propel the foam projectile at high speed through the entire steel tube. The high-density foam projectile closely fits the pipe wall. As it travels, it scrapes and entrains iron chips, dust and oil contamination adhered to the inner wall, carrying all internal contaminants out of the pipe in one pass. For multi-bend and long-distance bent pipes, the foam projectile features excellent deformability to smoothly negotiate pipe corners without jamming, delivering full coverage cleaning with no blind spots.

Core Advantages

✅ Thorough cleaning: Flexible foam projectiles hug the pipe wall. Compared with simple air purging, they remove solid iron chips and welding slag for superior inner-wall cleanliness that meets factory acceptance standards for hydraulic pipelines and precision pipe fittings. ✅ Compatible with complex bent pipes: Suitable for bent steel tubes and irregular oil circuit pipes, solving the pain point that conventional cleaning tools cannot pass bends. ✅ Low operating cost: Affordable foam projectile consumables with simple replacement. Each tube takes little time to clean, ideal for batch steel tube cleaning in workshops. ✅ Safe & simple operation: Air-driven, no water or power supply required. Operators can use it after brief training. When paired with a collection & counting device, it automatically counts foam projectiles passing through the pipe to prevent missed or insufficient cleaning cycles.

Typical Application Scenarios

Hydraulic steel tubes for shield machines, oil circuit bent pipes for construction machinery, locomotive brake pipelines, precision hydraulic assemblies, prefabricated steel tubes for aerospace and heavy industry workshops. After steel tube bending and welding, inner-wall cleaning using the APS AM-2 pipe cleaning gun serves as a critical quality control step before delivery, effectively reducing later equipment faults such as oil leakage, valve blockage and component abrasion.

Simplified Operating Procedure

Select foam projectiles of the correct size according to the inner diameter of the steel tube; Load the foam projectile into the APS AM-2 cleaning gun and connect the gun nozzle to the inlet of the steel tube to be cleaned; Turn on compressed air and launch the foam projectile. The projectile carries iron chips out from the other end of the pipe; The foam projectile enters the collection unit, the counter increments automatically, and complete exit of the projectile confirms that pipe cleaning is finished.