Series: DS/CS | Energy: 3,390 J (2,500 ft-lbf) | Carrier: 26,400–44,000 lb (12,000–20,000 kg)
The CAT H115 is a hydraulic breaker built for contractors, rental fleets, demolition crews, quarry operators, and equipment owners who need a breaker that fits their carrier correctly and delivers reliable output in the field. This model sits in the DS/CS range and is well suited for site preparation, road base breaking, foundation work, utility trenching in mixed material, and general concrete demolition. When a breaker is matched correctly to the carrier — by weight class, hydraulic flow, and operating pressure — operators get better production, less unnecessary vibration transmitted back to the machine, reduced wear on the attachment and bracket, and fewer problems with hoses, bushings, retainers, and seals.
The CAT H115 is designed for 26,400–44,000 lb (12,000–20,000 kg), with a service weight of 2,200 lb (1,000 kg). Oil flow requirements are 70–130 L/min (18–34 gpm), operating pressure is approximately 14,000 kPa (2,030 psi), and the impact rate is 370–800 BPM. The energy class is 3,390 J (2,500 ft-lbf). These specifications define where this breaker fits in the lineup. A unit that is too small for the job will force the operator to work the tool harder than intended, causing overheating and premature wear. A unit that is too large for the carrier can create excess hydraulic heat, damage mounting hardware, and shorten the service life of both the hammer and the machine.
Maintenance discipline is as important as correct sizing. A hydraulic hammer operates in some of the most demanding conditions on a jobsite — dust, shock load, side load, heat, moisture, and thousands of impact cycles per hour. Even a well-built breaker will lose performance if the lower bushing wears undetected, the tool is run dry, the seals harden from heat cycling, nitrogen or accumulator pressure drifts out of specification, or hydraulic flow and pressure fall outside the recommended range. Owners should inspect the tool steel, retainers, bushings, tie rods, hoses, fittings, and the grease system on a regular schedule. A properly maintained hammer hits harder, runs cooler, and protects the carrier better than a neglected one. For many contractors, the real value of this model is not the purchase price alone — it is the ability to keep it running through repairable wear rather than replacing the whole breaker.
The design characteristics of the CAT H115 include Cat DS/CS series hydraulic integration, Cat-standard serviceability, carrier protection, and a practical flow and pressure envelope suited to the Cat 315-through-320 excavator class. These attributes make it well suited for applications where productivity, controllability, carrier protection, and access to dealer service support all matter. When comparing this model against similar breakers, pay close attention to carrier size match, hydraulic circuit setup, tool steel availability, and the parts support network available in your area. Matching the hammer correctly to the carrier improves efficiency and helps prevent common issues such as weak hitting, slow cycling, tool overheating, premature bushing wear, and cracked mounting hardware.
HBS provides complete support for the CAT H115, including hydraulic hammer repairs, full rebuilds, routine maintenance, and sales. Parts stocked and available for this model include chisels, tie rods, upper and lower bushings, retainer pins, accumulator diaphragms or membranes, hydraulic seals and seal kits, front head components, and hoses and fittings. Whether this breaker is leaking oil, hitting weak, cycling slowly, overheating, wearing tools too fast, breaking retainers, or due for a full overhaul, HBS can diagnose the issue and return it to working condition. Contact HBS for service pricing, parts availability, rebuild options, and expert guidance on matching this hammer to the right carrier and application.
Key Features
- Impact energy of 3,390 J (2,500 ft-lbf) at 370–800 BPM positions the CAT H115 for medium-duty construction and demolition applications where the 315-through-320 excavator weight class needs a well-matched breaker that delivers consistent output without pushing auxiliary circuit temperatures above design limits
- Cat DS/CS series design integrates hydraulic circuit requirements directly with Cat excavator auxiliary systems, eliminating the pressure and flow mismatches that cause heat buildup, premature seal wear, and reduced blow rate output on non-matched breaker installations
- Carrier weight range of 26,400–44,000 lb (12,000–20,000 kg) represents one of the most common mid-size excavator weight classes in commercial construction and site development, making the H115 a natural fit for Cat 315 and 318 machines running demolition, utility, and foundation work
- HBS stocks parts for the CAT H115 including chisels, tie rods, upper and lower bushings, retainer pins, accumulator components, hydraulic seal kits, front head parts, and hoses — supporting repairs, rebuilds, and preventive maintenance without extended wait times
Key Specifications & Service Points
- Recommended carrier match: 26,400–44,000 lb (12,000–20,000 kg) — service weight 2,200 lb (1,000 kg)
- Core performance: energy class 3,390 J (2,500 ft-lbf); impact rate 370–800 BPM
- Hydraulic requirements: oil flow 70–130 L/min (18–34 gpm); operating pressure approx. 14,000 kPa (2,030 psi)
- Parts available from HBS: chisels, tie rods, upper and lower bushings, retainer pins, accumulator components, hydraulic seal kits, front head parts, and hoses
