Increase efficiency and lower costs with the new Cat® GC S Series Hydraulic Hammers

No Frills. No Fuss. Just Break!

Easy to use and maintain, the new Cat® GC-S Series is a hard-working ‘every day’ hammer range for operators looking for higher efficiency and a lower cost per hour solution. The new GC-S Series models are specifically designed for hydraulic excavators with operating weights from 13 to 40 tons and for use in a range of applications including quarry, trenching/primary excavation, demolition and road construction.

Combining simple design with all the essential features you need, they deliver best-in-class performance, ease-of-use and serviceability. If you’re ready to break without breaking the bank, these operator-friendly, easily maintained hammers are for you!



Hammer Model H115 GC S* H120 GC S* H130 GC S* H140 GC S*
Recommended carrier weight, (pounds) 13-18 tonnes (28,600-39,600) 18-25 tonnes (39,672-55,100) 25-32 tonnes (55,100-70,500) 30-40 tonnes (66,130-88,160)
Max. operating weight** 1330 kg 1780 kg 2500 kg 3100 kg
Impact frequency (blow per minute) 450-800 bpm 400-800 bpm 350-700 bpm 250-550 bpm
Energy class (Joules) 3,000 J 4,000 J 5,000 J 6,000 J
Operating pressure 15000-17000 Kpa 16000-18000 Kpa 16000-18000 Kpa 16000-18000 Kpa
Tool diameter (in.) 120 mm (4.7) 135 mm (5.3) 150 mm (5.9) 153 mm (6.0)

Key Features and Benefits


As a standard feature, GC-S Series hammers feature a protective, enclosed housing, designed to lower the noise level for the operator, as well as for the overall job site.


The gas-fired operating cycle delivers a constant reliable performance, maximizing hammer efficiency.


This feature provides blank-firing protection by stopping the piston from cycling internally when no material is under the tool. Eliminating blank firing protects the hammer by reducing internal stress and heat, which results in lower overall owning & operating costs.


Full length side plates on GC S Series hammers provide ready access to service points.

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