Skip to content
American Quality | Freight Delivered Nationwide | U.S. Based Support
American Quality | Freight Delivered Nationwide | U.S. Based Support

FSB-150 Walk-Behind Air Saw | U.S. Saws

Brand U.S. SawsSKU US60050
Original price $4,256.30 - Original price $4,256.30
Original price
$4,256.30
$4,256.30 - $4,256.30
Current price $4,256.30
Authorized Dealer Sourcing
Financing Available for Eligible Orders
Contractor-Grade Equipment

Shipping: LTL freight. Commercial delivery preferred.

The FSB-150 is an air-driven walk-behind saw that cuts to 7.5 in deep with blades up to 20 in, running a gearbox drive on 90 CFM at 90 PSI shop air. It is the lighter, emissions-free alternative to a gas walk-behind for sidewalk repair, interior trench cutting, and asphalt patching.

Need fitment or freight help before you order? Contact our team.

Shipping & Freight

For an order containing products from a single brand, shipping is a flat rate based on your order total:

  • Orders up to $5,000: $279
  • Orders $5,000 to $10,000: $347
  • Orders $10,000 and over: $517

These rates cover standard freight delivery to a commercial address. After you place your order, our team will confirm your delivery timeline within 1 to 3 business days.

Ordering from more than one brand? Multi-brand orders ship on separate freight and are quoted individually rather than at the flat rate above. Place your order or contact us first and we will confirm total freight before anything is finalized.

Liftgate service is not included in these rates. If your delivery location has no loading dock or forklift to unload the freight from the truck, liftgate service is required and will be added to your shipping charge. If you are unsure whether you need it, contact us before ordering.

Commercial delivery locations are preferred when available. Residential delivery, limited-access locations, and appointment scheduling may affect handling.

Lead times vary by product, manufacturer availability, and selected options. Some configured, special-order, or non-stock items require additional processing time before they ship.

Please inspect all freight shipments at delivery before signing. If you see visible damage, note it with the carrier and contact us as soon as possible.

If you need freight, delivery, or lead-time guidance before ordering, contact our team before you purchase.

Compatibility / Fitment

Compatibility varies by product type, machine setup, selected options, and intended application.

For machine-mounted equipment and attachments, buyers should confirm fitment before ordering using the relevant machine information, including model, attachment style, mount type, coupler type, hydraulic requirements, and any other product-specific requirements listed on the page.

Hardscape Heavy can assist with pre-order fitment guidance based on the information you provide. This guidance is limited to purchase and compatibility review before ordering and does not include field installation, hydraulic modification, fabrication, or on-site setup support.

If you are unsure whether a product will work with your machine or application, contact us before placing the order.

Specifications

Core Specs

  • Weight: 144 lbs
  • Drive: air gearbox, direct geared
  • Air Flow Requirement: 90 CFM minimum at 90 PSI
  • Blade Shaft Speed: 3,300 RPM
  • Max Depth of Cut: 7.5 in
  • Blade Capacity: 20 in maximum


Need full technical detail?
See the Technical Details tab. If available, also see manufacturer PDF in the Downloads tab.

Returns & Warranty

Warranty coverage is provided by the product manufacturer where applicable. Warranty terms, coverage periods, exclusions, and claim procedures vary by brand and product type.

Hardscape Heavy does not create separate warranty coverage beyond the manufacturer’s warranty unless explicitly stated on the product page.

Returns are governed by our store return policy. Because many products in this category involve freight shipping, special ordering, or configuration-specific selections, return eligibility may vary by product and condition. Special-order, custom-configured, used, damaged, or installed items may not be eligible for return.

Please review our full return policy before purchase. If you have questions about return eligibility or manufacturer warranty coverage for a specific item, contact us before ordering.

The FSB-150 makes straight, upright cuts in concrete and asphalt where a gas walk-behind saw is too heavy, too fumey, or simply not allowed: sidewalk repair, interior trench cutting, and asphalt patching. Air drive means no engine exhaust at the cut, which is what puts it inside buildings and down in structures where gas saws stay on the truck.

The geared air drive has no belt to slip under load, and the saw's weight sits balanced over the blade so it tracks a line without rocking. At 144 pounds it loads and moves with far less fight than a gas flat saw of the same cutting depth. The package arrives cut-ready with a water feed kit for wet cutting, whip hose, oiler, and wrenches. This is the flat saw for municipal and utility crews already running compressor trucks, cutting sidewalks and trench lines day in and day out.

Common Applications

  • Sidewalk repair cutting
  • Interior trench cutting
  • Asphalt patch cutting

Selection Notes

  • Requires a 90 CFM at 90 PSI air source; size the compressor before the saw
  • The same frame runs as the hydraulic FSB-150H for crews on hydraulic power packs instead of compressors
  • Runs blades to 20 in for the full 7.5 in depth of cut
Unit Specifications
Drive
Air gearbox, geared, no belt
Air flow requirement
90 CFM minimum
Air pressure requirement
90 PSI
Blade shaft speed
3,300 RPM
Cutting Capacity
Max depth of cut
7.5 in (191 mm)
Blade capacity
20 in maximum
Build
Balance
Weight balanced to eliminate rocking during the cut
Wet cutting
Water feed kit included
Dimensions & Weights
Weight
144 lb (65 kg)
Geared drive, no belt
No belt to slip or burn when the blade loads up mid-cut
Emissions-free air drive
Cuts indoors and below grade where gas saws are barred
Balanced deck
Tracks a straight line without the rocking that ruins a cut edge

Included with Purchase

  • 1 FSB-150 Walk-Behind Air Saw with gearbox
  • Water feed kit
  • Whip hose and oiler
  • Wrenches
  • 1 quart Ice Free air tool oil

Not Included Unless Stated

  • On-site installation or machine configuration

Note: Confirm exact included components and mount hardware with supplier at time of order.

Related Equipment

FSB-150H Walk-Behind Hydraulic Saw | U.S. Saws

U.S. Saws
Original price $4,918.30 - Original price $4,918.30
Original price
$4,918.30
$4,918.30 - $4,918.30
Current price $4,918.30

The FSB-150H is a hydraulic walk-behind saw that cuts to 7.5 in deep with blades up to 20 in, flush-cut capable, running on 12 GPM at 2,500 PSI. It...

View full details
Original price $4,918.30 - Original price $4,918.30
Original price
$4,918.30
$4,918.30 - $4,918.30
Current price $4,918.30

Tiger Tooth II Blade | U.S. Saws

U.S. Saws
Original price $234.00 - Original price $250.70
Original price
$234.00 - $250.70
$234.00 - $250.70
Current price $234.00

The Tiger Tooth II is a vacuum brazed diamond blade built on a one-piece core with no welds, published in 12 and 14 in. Both sizes carry a 20 mm so...

View full details
Original price $234.00 - Original price $250.70
Original price
$234.00 - $250.70
$234.00 - $250.70
Current price $234.00

Tiger Tooth Blue Series Blade | U.S. Saws

U.S. Saws
Original price $156.00 - Original price $227.10
Original price
$156.00 - $227.10
$156.00 - $227.10
Current price $156.00

The Blue Series is the .187 in Tiger Tooth built for joint restoration, published in 8 and 10 in. Large grit mills out old polyurea and epoxy while...

View full details
Original price $156.00 - Original price $227.10
Original price
$156.00 - $227.10
$156.00 - $227.10
Current price $156.00

Mark-IV Dust Buggy Joint Clean-Out Saw | U.S. Saws

U.S. Saws
Original price $2,042.50 - Original price $2,042.50
Original price
$2,042.50
$2,042.50 - $2,042.50
Current price $2,042.50

The Mark-IV Dust Buggy is an electric walk-behind saw for cleaning out control joints, removing old joint filler, and making straight cuts in concr...

View full details
Original price $2,042.50 - Original price $2,042.50
Original price
$2,042.50
$2,042.50 - $2,042.50
Current price $2,042.50

JS-131 Gas Joint Clean-Out Saw | U.S. Saws

U.S. Saws
Original price $4,774.25 - Original price $4,774.25
Original price
$4,774.25
$4,774.25 - $4,774.25
Current price $4,774.25

The JS-131 is a gas walk-behind joint clean-out saw for milling control joints, concrete sawing, and trench cutting. It runs dry diamond blades to ...

View full details
Original price $4,774.25 - Original price $4,774.25
Original price
$4,774.25
$4,774.25 - $4,774.25
Current price $4,774.25

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare