MC12-2 - Smith MC12-2 Medium Duty Acetylene Cutting Tip Size 2

Smith MC12-2 Medium-Duty Acetylene Cutting Tip Overview

The Smith MC12-2 is a high-performance medium-duty cutting tip designed specifically for use with acetylene gas. Engineered by Smith Equipment (a division of Miller Electric), this tip represents the gold standard in oxy-fuel cutting technology for medium-duty applications. The MC12-2 is a Size 2 tip, capable of cleanly cutting steel ranging from 3/4 inch to 1 inch (25.4 mm) in thickness. It is an essential consumable for professionals utilizing Smith's renowned medium-duty torch handles and cutting attachments.

Precision Engineering and Construction

Constructed from high-quality copper, the MC12-2 features a fully swaged interior. This manufacturing process creates mirror-smooth gas passages that minimize turbulence, resulting in a stable flame, faster starts, and significantly reduced slag accumulation on the workpiece. The tip face is designed with a concave shape, a strategic feature that helps protect the critical orifices from damage if the tip accidentally touches the work surface. This design also aids in reducing the occurrence of backfires, ensuring a smoother cutting operation.

Safety and Compatibility

Safety is paramount in the design of the MC12 series. These tips utilize Smith's signature "in-tip" mixing technology. By mixing the oxygen and acetylene within the tip itself rather than in the torch handle or tube, the risk of flashback is greatly minimized. In the event of a sustained backfire, the reaction is isolated within the disposable tip, protecting both the operator and the expensive torch equipment. The MC12-2 is designed with a slip-in base, allowing for hand-tightening to form a perfect, positive seal without the need for wrenches. This tip is compatible with the following Smith cutting attachments and torches:

• DG109A
• MC505
• MC509
• CC509P
• AC309

Operational Specifications

To achieve optimal performance, the MC12-2 requires specific pressure and flow settings. It operates best with a cutting oxygen flow rate of approximately 107-108 SCFH, a preheat oxygen flow rate of 11 SCFH, and a preheat acetylene flow rate of 9 SCFH. Proper adherence to these parameters ensures a clean face cut and maximizes the longevity of the tip.