Cat H55E Hydraulic Hammer

Mid

Standard Flow

Runs on standard auxiliary flowFits most skid steers, including small-frame

Overview

The Cat H55E is a compact hydraulic hammer designed for Cat skid steers and small CTLs. Part of Cat Work Tools' H-series, the H55E is suited for concrete demolition, frozen pavement, and rock in tight urban spaces where larger machines cannot work. Available through Cat dealers across Canada as part of their broad Work Tools lineup.

Canada Availability

Available through Cat Work Tools dealers across Canada.

Best for: concrete demolition, frozen ground, urban rock work

Compare with: Atlas Copco SB 102 Hydraulic Breaker (Legacy) · Berlon Industries Skid Steer Hydraulic Breaker · Blue Diamond Skid Steer Hydraulic Breaker

Key Facts

Model: Cat H55E
Brand: Cat Work Tools
Type: hydraulic hammer
Class: compact skid steer
Application: concrete demolition, frozen ground, urban rock work
Mount: Cat quick attach (BOCE)
Weight: 500–900 lbs
Hydraulic flow: 8–20 GPM

✓ Specs sourced from cat.com · Last verified: March 2026

View on cat.com →

Is This Right For You?

Buy if

You break large reinforced concrete foundations, thick rock, or concrete retaining walls regularly
Your skid steer is a large-frame machine (80+ HP) rated for a heavy hammer attachment
Production rate matters — heavy-duty breakers complete demolition jobs significantly faster than medium class

Skip if

Your machine is medium-frame or smaller — a heavy breaker can exceed carrier weight class limits and damage hydraulics
Occasional light demolition is your only use — a medium-duty breaker handles that range at lower cost

Also consider

Medium-duty hydraulic breaker for smaller machines and occasional demolition
Light-duty breaker for compact machines doing concrete curb or small slab work

Machine Compatibility

Compatible with all skid steer brands and compact track loaders via universal SSQA quick attach. Mid-frame machines (S450–S650 class) are the most common fit.

About Cat in Canada

Caterpillar attachments are backed by the largest dealer network in Canada, with service centres in every major city. OEM quality with the assurance of nationwide parts and support.

Care & Maintenance

Check nitrogen buffer gas pressure at the start of every season and whenever impact energy feels reduced — low gas pressure is the most common cause of reduced performance
Lubricate the tool (chisel) bushing and retainer pins before every use — dry bushings accelerate side-loading wear on both the bushing and the tool shank
Inspect the lower bushing for wear after every 40 hours — a worn bushing allows chisel wobble, reducing impact energy delivery and accelerating shank wear
Never blank-fire the breaker — operating without material contact destroys the internal valve in minutes; this is the most common cause of breaker failures
Verify return-line back-pressure annually — back-pressure exceeding the breaker's rated limit destroys the valve seal progressively and may not be immediately obvious