CS Unitec CS 566110-3 Hydraulic 20" Chain Saw (U/W Capable) Product Guide

The CS Unitec CS 566110-3 is a hydraulic-powered 20-inch chain saw engineered for concrete cutting applications, including underwater use. It addresses the challenge of making deep, precise plunge cuts and mechanical openings in concrete and reinforced concrete structures where square corners and irregular shapes are required. This tool is especially useful for contractors needing a robust saw capable of cutting up to 20 inches deep without overcuts.

In practical use, this saw is commonly employed in demolition, underwater construction, and heavy-duty concrete cutting projects. Its hydraulic operation allows the power unit to be positioned away from the immediate cut area, which can be advantageous in confined or poorly ventilated spaces. Users should plan hydraulic hose routing carefully to maintain operator access and prevent restricted flow or abrasion. The AirFORCE F4™ diamond chain enhances cutting performance with durability and precision, while the die-cast aluminum body provides industrial resistance to harsh environments. For underwater use, post-job rinsing with fresh water is important to remove salt, grit, and debris, supporting tool longevity.

Where This Is Used

• Underwater cutting operations in marine construction and repair
• Concrete and reinforced concrete cutting for mechanical openings, installation, or demolition
• Projects requiring deep plunge cuts with square corners, such as cores or irregular concrete cuts

Key Details

Selection Notes

From a selection standpoint, confirm that your hydraulic power unit delivers the correct flow and pressure per the saw’s requirements and that hydraulic couplers and return-line capacity are compatible. The 20-inch bar allows effective deep plunge cuts and mechanical openings in concrete, ideal for projects needing square corners without unwanted overcuts. Because this saw can be used underwater, plan hose lengths and routing to accommodate diver access and jobsite layout, ensuring no restriction of return oil flow. Verify if your application requires the Stretch Reduction System (SRS) during chain setup to maintain consistent tension and longevity. Post-use cleaning with fresh water after submerged cutting is important to support equipment reliability.

Setup Notes

Confirm compatibility of hydraulic hoses, couplers, and the hydraulic power unit before starting. When paired with a properly positioned hydraulic power unit, the engine exhaust source can be placed away from the immediate work face, which is useful in confined or underwater operations. For underwater cutting, ensure hydraulic hose routing supports diver mobility and cutting accessibility while preventing abrasion or kinks. Verify that the hydraulic power unit and return line handle the tool’s return flow of hydraulic oil to the tank for cooling and repressurization. If working in environmentally sensitive areas, check if the hydraulic fluid used can be biodegradable or environmentally acceptable to reduce spill impact. After cutting, rinse the chain saw with clean fresh water (not saltwater) to remove salt, grit, and debris—this supports tool longevity but does not replace manufacturer maintenance requirements. Inspect chain, bar, couplers, and hose connections after each use to support reliable operation.