According to one implementation, a blast treatment device includes at least one nozzle, a movement structure and at least one weight member. The at least one nozzle injects blast media. The movement structure reciprocates the at least one nozzle along a track. The at least one weight member cancels a vibration caused by reciprocating the at least one nozzle. Further, according to one implementation, a blast treatment method includes injecting blast media from at least one nozzle; manufacturing a blast treated product by reciprocating the at least one nozzle along a track; and canceling a vibration, caused by reciprocating the at least one nozzle, by at least one weight member.

According to one implementation, a blast treatment device includes at least one nozzle, a movement structure and at least one weight member. The at least one nozzle injects blast media. The movement structure reciprocates the at least one nozzle along a track. The at least one weight member cancels a vibration caused by reciprocating the at least one nozzle. Further, according to one implementation, a blast treatment method includes injecting blast media from at least one nozzle; manufacturing a blast treated product by reciprocating the at least one nozzle along a track; and canceling a vibration, caused by reciprocating the at least one nozzle, by at least one weight member.

Reduced noise abrasive blasting assemblies and systems are described. The new assemblies and systems are comprised of standard blast hose, accelerator hose, couplings and nozzle. The improved abrasive blasting system maintains abrasive particle velocity while decreasing the exit gas velocity and consequently decreasing sound production. This is accomplished through an acceleration section with reduced inner diameter and sufficient length to provide the necessary abrasive particle velocity. The new system maintains the productivity and efficiency of conventional abrasive blasting systems but with greatly reduced acoustic noise production and reduces operator fatigue due to the lower weight of the carried portion of the system.

Reduced noise abrasive blasting assemblies and systems are described. The new assemblies and systems are comprised of standard blast hose, accelerator hose, couplings and nozzle. The improved abrasive blasting system maintains abrasive particle velocity while decreasing the exit gas velocity and consequently decreasing sound production. This is accomplished through an acceleration section with reduced inner diameter and sufficient length to provide the necessary abrasive particle velocity. The new system maintains the productivity and efficiency of conventional abrasive blasting systems but with greatly reduced acoustic noise production and reduces operator fatigue due to the lower weight of the carried portion of the system.

A cutting head includes a cutting head body with an integrated collet and a shield configured to direct expended abrasive particles away from the cutting head. A wear insert is secured within the cutting head body and configured with a venturi chamber in which a stream of water accelerates a metered stream of abrasive. A focusing tube is secured to the wear insert assembly by the cutting head body with the integrated collet. The integrated collet aligns a focusing orifice of the focusing tube with an orifice through which the stream of water flows. A nut secures the integrated collet to the focusing tube and seals an interior of the cutting head body. The shield is selectively positionable along a length of the focusing tube to optimize shielding.

A cutting head includes a cutting head body with an integrated collet and a shield configured to direct expended abrasive particles away from the cutting head. A wear insert is secured within the cutting head body and configured with a venturi chamber in which a stream of water accelerates a metered stream of abrasive. A focusing tube is secured to the wear insert assembly by the cutting head body with the integrated collet. The integrated collet aligns a focusing orifice of the focusing tube with an orifice through which the stream of water flows. A nut secures the integrated collet to the focusing tube and seals an interior of the cutting head body. The shield is selectively positionable along a length of the focusing tube to optimize shielding.