Fx770 QTV LARGE SERIES HYDRAULIC ROCK BREAKERS – A BRUTE THAT CAN MOVE MOUNTAINS

Able to work on a wider range of carriers (48.5-ton to 83-ton), the new Fx770 Qtv breaker replaces the popular F70 Qt. It offers unique features and proven design improvements.

Even though it requires the same pressure and flow than its predecessor, the Fx770 is designed to produce increased impact as a result of a significant increase in backhead pressure.

This breaker is the perfect choice for working in quarries, breaking hard rock or taking on large demolition jobs. Several improvements to the thru-bolts increase durability, while a replaceable cylinder liner with concentric porting increases tool life. An anti-idle blow feature increases durability and performance. There is a coating applied to the breaker’s cylinder liner and valve, which reduces time-consuming maintenance and greatly increases the level of reliability.

The new, 12,000 Lb Class Fx770 Qtv rock breaking hammer from Furukawa FRD replaces the popular F70 Qt, and offers unique features & proven design improvements.

Features & Benefits

  • Increased carrier range (48.5 to 83 ton) over its predecessor, the F70 Qt (48.5 to 77 ton), allowing use on a wider range of carriers.
  • Larger diameter working steel (7.48″) over the F70 Qt (7.09″).
  • Higher backhead pressure increases impact by 10% over the F70 Qt even though both operate with the same pressure and flow.
  • Replaceable cylinder liner with concentric porting keeps piston aligned for maximum impact performance.
  • Scratch-resistant phosphate coating applied to both valve and cylinder liner improves service life of both components; minimizes opportunity of minor galling.
  • Design improvements to the thru-bolts, including larger thread diameters, can increase durability by 20%.
  • Includes two-year warranty with registration.
  • Increased carrier range (48.5 to 83 ton) over its predecessor, the F70 Qt (48.5 to 77 ton), allowing use on a wider range of carriers.
  • Larger diameter working steel (7.48″) over the F70 Qt (7.09″).
  • Higher backhead pressure increases impact by 10% over the F70 Qt even though both operate with the same pressure and flow.
  • Replaceable cylinder liner with concentric porting keeps piston aligned for maximum impact performance.
  • Scratch-resistant phosphate coating applied to both valve and cylinder liner improves service life of both components; minimizes opportunity of minor galling.
  • Design improvements to the thru-bolts, including larger thread diameters, can increase durability by 20%.
  • Includes two-year warranty with registration.

Specifications

Title Units
Impact energy class in ft lbs. (joules) 12,000 ft lbs. (16,269 J)
Weight in lbs. (kg) 10,742 lbs (4,872 kgs)
Length in inches (mm) 155.7″ (3,955 mm)
Diameter in inches (mm) 7.48″ (190 mm)
New length measured from fronthead in inches (mm) 33.85″ (860 mm)
Replaceable length measured from fronthead in inches (mm) 21.25″ (540 mm)
Adjustable BPM 250 – 330 BPM
Acceptable GPM range (LPM) 66 – 90 GPM (250 – 340 LPM)
Acceptable psi range (Bar) 2,320 – 2,610 psi (160 – 180 Bar)
85 dB(A) @ –17 m
Recommended carrier in U.S. tons (kg) 48.5 – 83 t (48,500 – 83,000 kgs)
Carrier options Excavator

Notes
Weight and length for all versions include working steel and “Universal” top cap.

Fx Large Series Cut-Away

CARRIER COMPATIBILITY GUIDE for Fx770

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Choosing the Right Hydraulic Breaker

When operated properly, breakers efficiently and effectively break up concrete and shatter rock. If not operated properly or not sized correctly for the job, the attachment can fail unexpectedly and waste precious time on a job site, or even suffer a reduced lifespan.

Get the guide for the Fx770 Qtv Large Series Hydraulic Rock Breakers

To learn more about proper operating techniques and choosing the right hydraulic breaker for your job, download our latest guide.