• Mac Muffler Sizing
• Mac Muffler Warranty

• Marine Exhaust System
• Industrial Equipment
• Stationary Engines
• Welding Equipment
• Mobile Compressors & Generators
• Mining Equipment · Aerial Platforms · Motor Homes
• Logging Equipment
• Earth Moving Equipment
• Commercial Trucks · Agricultural & Farm Equipment
• Process Equipment – Air & Steam Vents · Trucks, vans, pick-ups
• Pumping Units · Airplanes

MAC MUFFLER – THE ‘SOUND’ SOLUTION

• High noise reduction
• Compact design reduces size and weight to less than half that of comparable units
• No condensation
• Spark arrestor function
• Self cleaning
• Ease of installation

The MAC Muffler is a high performance muffler with high sound attenuation characteristics covering a very broad band and does not require tuning of any kind. Due to the cyclonic flow of gases through the inner and outer lines of the muffler, the MAC Muffler also functions as a spark arrestor.

SIZE & WEIGHT REDUCTION:

The MAC Muffler is approximately one-third the size of a conventional reactive silencer, and hence is ideal for applications where space is minimal. The small size and reduced weight offers great flexibility and ease of installation on welding machines. The MAC “Whisper Quiet” muffler can be mounted under the hood therefore has little stress on the manifold.

SOUND ATTENUATION:

The MAC Muffler operates on a patented wave canceling principle and contains no baffles or packing to restrict gas flow. Sound waves added together tend to cancel each other when the troughs of one wave coincide with the peaks of the other wave. Noise attenuation or noise reduction of 20 to 28 dBA can be expected.

LOW BACK PRESSURE:

The unique wave canceling principle of the MAC Muffler, and the absence of resonant chambers and baffles create a relatively unrestricted path for the gas flow – hence resulting in minimal back pressure. Less than 10 ins. water gauge (.75 Mercury). These special features often permit a small MAC Muffler to replace a conventional large reactive muffler

TEST COMPARISON