B4 Non-Silenced Side Mount Hydraulic Hammer

Operating Weight - With Tool

326.3 lb

Energy Class

272.9 ft·lbf

Machine Class

93 HP

3-4 Ton Mini Excavators


Cat® Hammers for Skid Steer Loaders, Multi Terrain Loaders, Compact Track Loaders, Mini Excavators and Backhoe Loaders are high performance breakers, designed for maximum performance on demolition, construction and road work.

Detailed Equipment Specifications

  • Operating Weight - With Tool

    326.3 lb

    148 kg

  • Energy Class

    272.9 ft·lbf

    370 J

  • Machine Class

    93.0 in

    93.0 mm

    3-4 Ton Mini Excavators

  • Tool Shaft Diameter

    2.1 in

    53 mm

  • Impact Frequency

    93.0 in

    93.0 mm

    600-1100 bpm

  • Minimum Operating Pressure

    1,491.9 psi

    10,286 kPa

  • Minimum Carrier Weight

    6,613.9 lb

    3,000 kg

  • Optimal Hydraulic Flow

    93.0 in

    93.0 mm

    25-50 lpm (6.6-13.2 gpm)

  • Overall Width

    10.9 in

    277 mm

  • Overall Length

    18.7 in

    476 mm

  • Overall Height

    46.5 in

    1,182 mm

  • Height - Without Tool

    32.4 in

    822 mm

  • Sound Level

    93.0 in

    93.0 mm

    128 dB

  • Mounting Bracket Size

    93.0 in

    93.0 mm

    Pin On


Cat® B Hammers are suitable for use in a wide range of construction and light demolition applications - such as breaking concrete sidewalks and driveways, pavement, roads, masonry, site prep and landscaping, and breaking frozen ground for utility repairs.

Ergonomically Positioned Hydraulic Lines

Ergonomically positioned hydraulic lines are designed to optimize serviceability, are easily accessible and require no special tools. Housing has been positioned to protect against force and dirt during impact but allow for wrench access. Hydraulic lines and back head pressure can be checked and charged while breaker is mounted to machine, allowing quick monitoring of breaker's condition.

Gas Fired Design

Gas fired design delivers consistently high production over time making the breaker reliable in applications such as concrete, asphalt, rock and light trenching.

Pin On/Side Mount Style

Pin On/Side Mount style hammers provide more flexibility and are better suited for highway or construction breaking jobs. The reduced number of bolted joints also provides a more robust frame that increases hammer longevity.

Slip Fit Bushings

Slip fit bushings are field replaceable and easy to maintain due to one locking pin, extending wear life and reducing owning and operating costs. Upper bushing rotates 360°, lower bushing has two positions and can be rotated 90°.

Included with Each B Series Hammer

Every B Series Hammer comes with: Tool Kit w/Storage Box 2 Tools (1 x Conical and 1 x Transverse Chisel) Maintenance Kit

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