The maximum amount of sag that can be removed varies depending on job conditions. Most sags are less than 2 inches deep, but it is possible to remove sags that are 3 to 4 inches deep.

Our sag machine has been successfully used at depths exceeding 30 feet. In some cases, it has removed sags in 8-inch lines located as deep as 45 feet.

The Sag Machine comes equipped for 8-inch pipe and can be fitted with custom adapters for 10-, 12-, 15-, and 18-inch pipes.

Sag removal time can vary depending on conditions, but removing a minor sag typically takes about half a day for setup and removal.

When assembling the machine sections inside a manhole, it may be necessary to chip out part of the channel to ensure proper alignment and bolting. This process can add time if not completed in advance.

No, the machine does not operate upside down. To address an inverted sag or hump, it would be necessary to feather out the belly on the upstream side.

The pipe must be flexible to allow the machine to lift it at the sag—PVC is the most commonly used material. The machine does not work on ductile iron or other rigid pipes.

You will need a 75 CFM or larger air compressor, a minimum 3/4-inch diameter air hose, and our air swivel, oiler, and filter assembly. A separate 3/8-inch air hose is required to activate the lift mechanism. We recommend using a light-duty winch or pulling device, along with rollers or pulleys at each end of the pipe, to move the machine. A pull-back line should also be attached in case the machine becomes stuck. A TV camera is necessary for monitoring unless the sag is located near a manhole.

ACP offers on-site consulting services that include 16 hours of dedicated support over two days. During this time, an ACP representative will visit your project site to guide your team through equipment setup, operation, and troubleshooting. We also address any questions your team may have. Please note that this service is available at an additional cost.