AMEXORS 1:1 External Water Spray Low-Speed Dental Handpiece Kit Contra-Angle Straight Nosecone Air Motor E-Type

Modular ISO E-Type Architecture and Configuration Options The AMEXORS 1:1 External Water Spray Low-Speed Handpiece System is built around a universal ISO E-type quick-connect interface, allowing the pneumatic air motor to couple seamlessly with both the 1:1 contra-angle and 1:1 straight nosecone attachments, as well as other E-type compatible handpieces. To support flexible clinic procurement and distributor inventory management, the product line is supplied either as complete 3-piece sets or as standalone replacement units across two contra-angle chuck styles (Latch-Type or Push-Button) and two chair hose interfaces (2-Hole or 4-Hole).

1:1 Contra-Angle Handpiece: Concentric Stability & Dual Chuck Choices Engineered for intraoral low-speed procedures—including caries excavation, prophylaxis paste polishing, and endodontic paste delivery—the 1:1 contra-angle maintains a rotational concentricity error below 0.01 mm to minimize bur wobbling and vibration. Internally, an imported transmission shaft paired with precision-machined gears ensures smooth torque transfer from the motor. Externally, the housing receives a micrometer-grade (UM-level) wear-resistant protective surface treatment with ergonomic non-slip contours. Buyers can select between a traditional Latch-Type (swing-latch) head or a Push-Button head, both accepting standard Φ2.35 mm CA burs, lentulo spirals, polishing brushes, and prophy cups.

1:1 Straight Nosecone Handpiece: Aerospace Metal Grip & Twist-Lock Chuck Designed for chairside prosthodontic adjustments, denture acrylic trimming, and extraoral polishing, the 1:1 straight handpiece features a blue rotational collar manufactured from high-temperature-resistant aerospace metal. The internal lock-core mechanism secures and releases standard Φ2.35 mm straight (HP) burs via a smooth twist-lock rotation, while an external water tube clip routes cooling water directly along the nosecone shaft.

Self-Lubricating Pneumatic Air Motor & 135°C Sterilization Operating at a working air pressure of 0.30 to 0.35 MPa, the 1:1 low-speed air motor incorporates an oil-impregnated self-lubricating bearing assembly. This internal structure increases wear resistance and prevents rotor seizing during prolonged clinical operation. A directional control ring on the motor body enables instant switching between forward and reverse rotation, and an integrated external water nozzle connects to the irrigation tubing for thermal management. All metallic handpiece components withstand repeated 135°C high-temperature, high-pressure steam autoclave sterilization cycles for clinical infection control.