The Edco 33200 SS-20-7.5B is a 20-inch self-propelled walk-behind concrete saw built for the long, straight cuts that wear out lighter equipment. Concrete contractors, paving and bridge crews, and facility maintenance teams use this saw for slab demolition prep, deep control-joint cutting, road and bridge-deck repair, and trench cutting where a hand-held saw or smaller push saw would slow the crew down.
Built for
Concrete and demolition contractors who run long control joints, demolition perimeter cuts, or trench cuts in cured concrete day after day, and need a saw that can hold a steady feed rate without operator fatigue.
Paving and bridge crews cutting expansion joints, lane-line repair, and deck patches on roads and bridge decks. The self-propelled friction drive holds tracking on long, straight cuts so the cut quality stays consistent end to end.
Facility maintenance and floor-repair teams at warehouses, distribution centers, and industrial plants who need to cut out and replace damaged slab sections without bringing in a contractor for every job.
Typical use cases
Cutting expansion and control joints in new and existing concrete floors. Slab demolition prep - cutting out a damaged section so it can be removed and replaced. Trench cutting for utilities, drainage, and floor heating. Bridge-deck and road repair cuts. Parking-lot joint maintenance.
Cut depth and blade
The saw cuts to a maximum depth of 7.75 inches with a 20-inch wet-cut diamond blade. The 1.75-inch precision-machined stress-proof steel arbor shaft accepts standard 20-inch blades, so the operator can match blade segment hardness to the substrate (hard aggregate, asphalt, green concrete, or cured concrete) without changing arbor hardware.
Self-propelled drive
Friction drive on the rear axle moves the saw forward at a steady, controllable feed rate. That does two things contractors care about: it keeps the blade tracking straight on long runs (no operator drift), and it prevents blade overdrive - the condition where an over-eager operator pushes the blade harder than the cut will accept, which dulls segments prematurely. On a long run, a self-propelled saw can extend blade life dramatically compared to a push saw.
Operator features
The saw has electric start with a 12-volt battery and a heavy-duty 15-amp charger included in the box. The 3-gallon swing-away fuel tank pivots out of the way for fast service. Front 4-inch x 2-inch and rear 8-inch x 2-inch wheels give the saw stable tracking on uneven surfaces. The walk-behind operator station has the depth gauge, water valve, and drive controls grouped together so the operator does not have to leave the cut to make an adjustment.
Specifications
Blade size: 20 inches. Maximum cut depth: 7.75 inches. Arbor: 1.75 inches stress-proof steel, precision machined. Drive: friction-drive rear axle, self-propelled. Start: 12-volt electric (battery and 15-amp charger included). Fuel tank: 3 gallons, swing-away. Wheels: 4-inch x 2-inch front, 8-inch x 2-inch rear.
Frequently asked questions
How deep does the SS-20-7.5B cut?
With a 20-inch blade the saw cuts to a maximum depth of 7.75 inches, which covers virtually all single-pass slab work. For deeper cuts, the slab can be passed twice or stepped down through successive passes.
Why self-propelled instead of a push saw?
On long, straight cuts the friction-drive rear axle keeps the blade tracking at a steady, repeatable feed rate. That produces a cleaner cut and protects the blade from overdrive when the operator's pace changes. On a 100-foot control-joint run the difference between a push saw and a self-propelled saw is roughly half the labor and substantially longer blade life.
What blades does the SS-20-7.5B accept?
The 1.75-inch precision-machined stress-proof steel arbor accepts standard 20-inch wet-cut diamond blades. Match the blade segment specification to the material - hard aggregate, asphalt, green concrete, or cured concrete - for best performance and life.
Does it come with the battery and charger?
Yes. The SS-20-7.5B ships with the 12-volt electric-start battery and a heavy-duty 15-amp charger, so the saw is ready to run after fueling and water hookup.
What kind of work is this saw really designed for?
Long-run and deep-cut applications: road repair, bridge deck repair, parking-lot joint cutting, large slab demolition prep, and trench cutting. For short, light-duty cuts a smaller push saw or hand-held cut-off saw is usually a better fit.
Discount Cleaning Products is an authorized Edco dealer. The 33200 ships as a new factory unit with full Edco warranty support, and our US-based equipment team can recommend the right blade specification for your substrate, advise on water-supply and slurry handling, and source other surface-preparation equipment from the same order.