Front left view of 325G Compact Track Loader with hydraulic hammer breaking up concrete in a parking lot
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John Deere
HH20C
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John Deere HH20C Hydraulic Hammer

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Right Tool for the Job

Multiple bit options provide specialized functions, so you can match the tool to material and application for better productivity.

Close-up side view of a hydraulic hammer bit resting atop a concrete block on a dirt jobsite
Lower Noise, Easier Service

30% fewer parts, no tie rods, and membrane accumulator reduce noise/vibration and maintenance; one-piece bushings and simple tool retention speed service.

Hydraulic hammer breaking up concrete in the street in front of a building under construction
Fast, Efficient Breaking

C-series hydraulic hammers deliver 2–3x more blows per minute than prior models, with constant blow energy for strong performance on smaller skid steers/CTLs and compact excavators.

Side right view of an HH60C Hydraulic Hammer pummeling material at a roadside jobsite
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Dimensions
Hammer Weight

122 kg

Hammer Weight

270 lb.

Weight with Compact Excavator Mount

188 kg

Weight with Compact Excavator Mount

415 lb.

Tool Diameter

48.01 mm

Tool Diameter

1.89 in.

Impact
Impact Rate (Blows Per Minute)

800-3000

Impact Energy Class

475 J

Impact Energy Class

350 footPound

Noise Level

188 dBA

Hydraulics
Hydraulic Flow

25-55 L/min

Hydraulic Flow

6.6-14.5 gpm

Operating Pressure

9-15 MPa

Operating Pressure

1305-2175 psi

Pressure Relief

22 MPa

Pressure Relief

3190 psi

Vehicle Compatibility
Mounting Bracket Requirements

1002 (17G) or, 9801 1003 (26G and 35G), or 9802 (50G and 60G) required; all older mounting brackets will not interchange.

Front Protection Screen Requirements

AT337084 BYT10076 (17G canopy), AT451135 (26G–60G cab), or AT435404 (26G–50G canopy) required

Compact Excavators

17G, 26G, 30G, 35G