Meet the expert

GC and GC Silenced Series Hammers !

No Frills, No Fuss, Just Break With Cat® Hammers!

The latest additions to the Cat® hammer lineup provide new levels of technology and performance, but, as Cat Work Tools consultant Jason Zhang explained, are designed with a “no frills and  no fuss” approach to deliver greater productivity and lower ownership costs for everyday use.

The new, no frills GC Series hammers offer a straightforward design to meet the needs of everyday users by doing away with features that generally add to purchase and operating costs.

“These are economically priced hammers, built with Cat quality – but without the frills,” Mr Zhang said.

“The no frills design means the GC-Series is easy to operate, simple to maintain, reliable and durable.

“They will not let users down,” Mr Zhang added. “Operators can simply get the job done – there’s no need to spend time on complicated settings or adjustments, meaning productivity on the job site is sure to improve,” he said.

Hydraulic hammers are one of the most versatile work tools available and able to extend the usefulness of skid steer loaders, backhoe loaders and excavators of all sizes in applications from civil construction, road building, earthmoving, quarrying and mining.

The seven new models added to the Cat range include the H110GC, H115GC and the new GC Silenced Series H110GCs, H115GCs, H120GCs, H130GCs and H140GCs model.

The H110GC and H115 GC are added to the existing GC product line-up that includes the H120 GC (B20), H130 GC (B30) and H140 GC (B35).

These two new GC series hammers are configured for 11-18 tonne (9.9-16.2 tonne) excavators and satisfy life cycle value customer requirements.

operating costs,” Mr Zhang said.The five GC silenced hammers, further expands the Cat hammer portfolio by offering additional benefits to customers looking for life cycle value on excavators in the 11-40 tonne range (9.9-36.3 tonne).

“The introduction of these hammer models expands the portfolio and supports our  strategy of offering customers options at differing value points,” Mr Zhang said.

The Cat hammer portfolio now includes:

  • E Series Performance Hammers
  • GC Silenced Value Hammers (New)
  • GC Value Hammers

The new GC Silenced Series hammers complement the current E Series Life Cycle Performance and the GC Value hammers, Mr Zhang explained.

“These three tiers will allow Cat dealers to identify critical customer and job requirements and provide a Cat hammer solution that is ideally suited.

Key Features And Benefits

The Automatic Shut Off (ASO) feature on H110 GC S – H140 GC S hammers offers protection against blank firing by stopping the piston from cycling internally when there is no material under the tool.

“Eliminating blank firing helps protect the hammer from premature damage by reducing internal stresses and heat and this helps to lower overall hammer ownership and operating costs,” Mr Zhang said.

“Additionally, ASO will protect rental fleet hammers where operator skill level and expertise can vary.

Silencing is standard on the GC S hammers (H110 GC S – H140 GC S), which are designed with a protective enclosed housing to lower overall noise levels on a job site.

“The standard silencing feature, indicated by the ‘S’ in the nomenclature, protects the operator and everyone near the job site.”

“It also may allow you to work on noise regulated sites – a quieter job site is a safer job site,” Mr Zhang added.

Maintenance is also made easy on the new range with critical lubrication points made easily accessible, or an optional automatic lubrication system available.

“Customers can utilise a carrier mounted auto lube system or a hammer mounted auto lube system with the GC Silenced hammer range (H110 GC S – H140 GC S).

“With an optional auto-lube system your hammer is greased while it runs – saving you time and protecting your investment,” Mr Zhang explained.

“Rental fleets and owner operator customers commonly fit these systems because they help reduce wear and tear and pre-start intervals.

“Easy and quick access to all other maintenance areas ensures the hammers are ready to operate at their peak and helps to reduce maintenance costs over the life of the tool.

“Service of the lower bushing can be carried out in the field using simple hand tools,” he said.

“You can also verify the gas charge of the hammer without removing it from the carrier.” The simplified design also offers high-level hammer protection.

The fully enclosed housing protects the power cell, including the front head, cylinder and valve assembly.

“This lends itself to powerful, efficient, industry standard setting performance all while using less fuel,” Mr Zhang said.

A buffer system fitted inside the hammer housing on H110 GC S – H140 GC S models is to protect the carrier from potentially damaging reflective forces.

The system also helps to reduce vibration to the machine, improves noise suppression and aids hammer durability.

The large top buffer absorbs vibration and prevents damaging impulses from reaching the carrier.

The lower and top buffers help to dampen tie rod loading and assist in noise suppression.

“An accumulator protects the machine by capturing and buffering hydraulic spikes before they cause damage to hydraulic pumps,” Mr Zhang said.

Matched with all common carriers, the range is ideally suited to Cat machines as a total solution providing seamless hydraulic connectivity and maximum performance.

“Operators can take advantage of simplified design features including adjustment of the hammer power via a manual control adjustment on the side of the power cell,” Mr Zhang explained.

“The operator can select between high blow frequency and maximum power to get the performance you need to suit your application,” he said.

“The long stroke which has less piston frequency but more impact power and productivity is best for tougher applications, while the short stroke which has increased piston frequency but with less impact power is best for lighter applications.

“All in all, the new Cat hammer line up offers a model ideally suited to every need while maintaining Cat levels of performance that customers and operators expect,” Mr Zhang said.

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