Skip to content
American Quality | Delivery Across the Lower 48 | U.S. Based Support
American Quality | Delivery Across the Lower 48 | U.S. Based Support
U.S. Saws ACH-GB air chainsaw with guide bar and chain, side view
ACH-GB air chainsaw cutting a water main in the trench
ACH-GB air chainsaw plunge cutting buried pipe
Operator cutting a main from above with the ACH-GB in an excavation
ACH-GB air chainsaw, full side view on white
ACH-GB wet cutting through a vault wall
ACH-GB air chainsaw fitted with the pipe clamp
ACH-GB clamped to a pipe for a bottom-up cut
Operator cutting an exposed main with the ACH-GB
U.S. Saws ACH-GB air chainsaw with guide bar and chain, side view
ACH-GB air chainsaw cutting a water main in the trench
ACH-GB air chainsaw plunge cutting buried pipe
Operator cutting a main from above with the ACH-GB in an excavation
ACH-GB air chainsaw, full side view on white
ACH-GB wet cutting through a vault wall
ACH-GB air chainsaw fitted with the pipe clamp
ACH-GB clamped to a pipe for a bottom-up cut
Operator cutting an exposed main with the ACH-GB

ACH-GB Air Chainsaw | U.S. Saws

Brand U.S. SawsSKU US60465
$5,218.90 - $5,965.20
$5,592.90
$5,218.90 - $5,965.20
$5,592.90
Authorized Dealer Sourcing
Financing Available for Eligible Orders
Contractor-Grade Equipment

Shipping: LTL freight. Commercial delivery preferred.

The ACH-GB is a gearbox-driven air chainsaw for cutting pipe and concrete structures, running on 90 CFM at 90 PSI with no engine exhaust and no kickback. It configures by bar length (16 or 20 in), fitted chain (concrete or PowerGrit ductile iron), and bare saw versus field package.

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

Shipping & Freight

Delivery is available to the Lower 48 only; no shipping to Alaska, Hawaii or other US territories. Shipping is a flat rate based on your order total:

  • Orders up to $5,000: $279
  • Orders $5,000.01 to $10,000: $347
  • Orders $10,000.01 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.

Liftgate service is required if your delivery location has no loading dock or forklift to unload the freight. 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 and extend delivery time.

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: 27 lbs (16 in bar), 35 lbs (20 in bar)
  • Drive: air gearbox, 7.5 HP class
  • Air Flow Requirement: 90 CFM at 90 PSI
  • Chain Speed: 3,300 RPM
  • Max Depth of Cut: 16 in (16 in bar), 20 in (20 in bar)


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 ACH-GB cuts pipe and concrete structures with a chain instead of a wheel, which is what buys plunge cuts to full bar depth, square corners without overcuts, and irregular openings a circular blade cannot follow. Underground utility contractors and municipal water departments run it on ductile iron main; the same saw with a concrete chain cuts walls, vaults, and reinforced concrete pipe.

Air drive is the safety story: no emissions where the saw runs, no kickback when the chain pinches, and the saw works submerged, so trench water is a cutting condition rather than a stop-work. The gearbox drive has few moving parts, cuts wet with no hazardous dust, and starts under load. Every configuration runs the same saw head, and the choices are concrete: bar length sets the depth at 16 or 20 inches; the fitted chain matches the material, concrete chain for concrete pipe and structures, PowerGrit for ductile iron, HDPE, PVC, and cast; and the Package adds the trench kit, from whip hose and oil through the pipe clamp that steadies bottom-up cuts. This is the pipe saw for crews that open mains in the ground and cut structure walls in the wet.

Common Applications

  • Cutting ductile iron, HDPE, PVC, and cast pipe on utility mains
  • Cutting concrete pipe, walls, vaults, and reinforced structures
  • Plunge cutting and square openings in confined and submerged conditions

Selection Notes

  • Pick the chain by material: Concrete chain for concrete pipe and structures, Ductile Iron (PowerGrit) chain for metal and plastic pipe; chains swap, so the other chain can be added later
  • Pick the bar by required depth: 16 in bar for cuts to 16 in, 20 in bar for cuts to 20 in
  • The Package configurations add whip hose, tool oil, wrench, storage bag, and a 10 in pipe clamp that reduces fatigue and steadies bottom-up cuts
  • Requires a 90 CFM at 90 PSI air source, the same band as the belly saws and HS hand saws
Unit Specifications
Drive
Air gearbox, 7.5 HP class
Air flow requirement
90 CFM
Air pressure requirement
90 PSI
Chain speed
3,300 RPM
Cutting Capacity
Chain types
Concrete chain for concrete pipe and structures; PowerGrit chain for ductile iron, HDPE, PVC, and cast pipe
Cutting behavior
Plunge cuts to bar depth; square corners without overlapping cuts; irregular shapes
Submerged operation
Runs submerged in water; wet cutting with no hazardous dust
Build
Kickback
No kickback when the chain is pinched
Emissions
None at the saw
Maintenance
Few moving parts
BarChainKitModelMax Depth of CutWeight
16 inConcreteSaw OnlyUS6046516 in (406 mm)27 lb (12 kg)
16 inDuctile IronSaw OnlyUS6046616 in (406 mm)27 lb (12 kg)
16 inDuctile IronPackageUS6046816 in (406 mm)27 lb (12 kg)
20 inConcreteSaw OnlyUS6050320 in (508 mm)35 lb (16 kg)
20 inDuctile IronSaw OnlyUS6050220 in (508 mm)35 lb (16 kg)
20 inDuctile IronPackageUS6046920 in (508 mm)35 lb (16 kg)
Chain cutting geometry
Plunge cuts, square corners, and irregular openings a circular blade cannot make
No-kickback air drive
A pinched chain stalls instead of throwing the saw
Submerged cutting
Trench water is a working condition, not a shutdown

Included with Purchase

  • 1 ACH-GB Air Chainsaw with gearbox, bar and chain as ordered
  • Package configurations add: whip hose, 1 quart Ice Free air tool oil, wrench, storage bag, and 10 in pipe clamp; the 20 in package also carries a chain extension

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

U.S. Saws Mark-IV Dust Buggy, rear three-quarter view showing handle and cord
U.S. Saws Mark-IV Dust Buggy joint clean-out saw with Metabo grinder, front view

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

U.S. Saws
$2,042.50 - $2,042.50
$2,042.50
$2,042.50 - $2,042.50
$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
$2,042.50 - $2,042.50
$2,042.50
$2,042.50 - $2,042.50
$2,042.50
Black asphalt blade at closer range, U.S.SAWS hub label reading asphalt
Black asphalt diamond blade, full face view, wide chevron segments with deep gullets

Major Asphalt Blade | U.S. Saws

U.S. Saws
$228.50 - $518.10
$228.50 - $518.10
$228.50 - $518.10
$228.50

The Major Asphalt is a diamond blade engineered specifically for cutting asphalt, in six sizes from 12 to 20 in. It also cuts asphalt over concrete...

View full details
$228.50 - $518.10
$228.50 - $518.10
$228.50 - $518.10
$228.50
Close view of the same blade, hub label printed with the size and speed above the cooling hole ring
Bare steel blade with tall stepped segments spaced widely around the rim and a ring of cooling holes inside them

Jumbo Segment Blade | U.S. Saws

U.S. Saws
$245.10 - $245.10
$245.10
$245.10 - $245.10
$245.10

The Jumbo Segment is a multipurpose concrete blade with tall stepped segments, published at 14 in x .125 in on a 1 in arbor with a 20 mm bushing. C...

View full details
$245.10 - $245.10
$245.10
$245.10 - $245.10
$245.10
U.S. Saws JS-131 joint clean-out saw, left side view showing blade and pointer guide
U.S. Saws JS-131 gas joint clean-out saw with Honda engine, front three-quarter view

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

U.S. Saws
$4,774.25 - $4,774.25
$4,774.25
$4,774.25 - $4,774.25
$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
$4,774.25 - $4,774.25
$4,774.25
$4,774.25 - $4,774.25
$4,774.25
Hydraulic hand-held saw on a stand with hoses coiled
U.S. Saws hydraulic hand-held saw with full blade guard, side view

Hydraulic Hand-Held Saw | U.S. Saws

U.S. Saws
$3,235.67 - $3,413.29
$3,235.67 - $3,413.29
$3,235.67 - $3,413.29
$3,235.67

The Hydraulic Hand-Held Saw is a fully welded aluminum-frame cut-off saw driven by a hydraulic motor on 12 GPM at 2,500 PSI, in three sizes cutting...

View full details
$3,235.67 - $3,413.29
$3,235.67 - $3,413.29
$3,235.67 - $3,413.29
$3,235.67

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