For mining, quarrying, and construction contractors across Latin America, pneumatic breaker selection should be based on the actual working conditions rather than machine size alone. Choosing a breaker that is too light for the rock can result in slow production and excessive tool wear. On the other hand, using a heavy-duty breaker for soft rock can increase air consumption, operator fatigue, and component wear without delivering a corresponding productivity benefit.

A practical Shenli pneumatic breaker selection process should consider four main factors: rock hardness, working environment, available compressed air, and the way the breaker will be operated. This guide explains how these factors affect model selection across common mining, quarrying, tunneling, and demolition applications.

1. Start With Rock Hardness and Rock Structure

Rock compressive strength is a useful starting point, but it should not be the only consideration. Fracturing, weathering, joint spacing, and the size of the material being broken can also have a significant effect on breaker performance.

For general selection purposes, soft rock can include weathered limestone, loose shale, and fractured sandstone. Medium-hard conditions may include intact limestone, compact sandstone, and moderately fractured granite. Hard-rock applications commonly involve dense granite, basalt, quartzite, and other highly competent formations.

The following model groups provide a practical starting point.

2. Soft Rock: Choose Lightweight Equipment for Continuous Handheld Work

Soft rock applications generally do not require the impact capability of a large heavy-duty breaker. Weathered limestone, loose shale, and fractured sandstone can often be handled more efficiently with a lightweight handheld tool.

For small quarrying operations, foundation excavation, trench work, and secondary rock cleanup, G10 and TPB40 are suitable models to consider.

The G10 pneumatic breaker is a lightweight option for operators who need to carry and position the tool manually. Its compact design makes it practical for localized breaking and cleanup work where mobility is more important than maximum impact output.

The TPB40 provides a step up for applications requiring more breaking capacity while retaining the advantages of a relatively compact pneumatic tool. It can be considered for larger areas of soft-rock stripping and secondary breaking where a very heavy breaker would not be necessary.

For these applications, the available air compressor should also be considered carefully. A small portable compressor may be sufficient depending on the selected model and actual working requirements. Matching the breaker to the compressor helps maintain stable impact performance without unnecessarily increasing energy consumption.

3. Medium-Hard Rock: Balance Impact Performance, Weight, and Mobility

Medium-hard rock is common in both quarrying and underground mining. Typical conditions include intact limestone, compact sandstone, and moderately fractured granite.

These applications require a balance between impact performance and operator control. A breaker that is too light may require excessive striking time, while a larger machine may be unnecessarily difficult to handle in confined areas.

Three models worth considering in this category are B37, TS11, and TPB60.

TS11 for Underground and Confined Applications

The TS11 is well suited to applications where equipment mobility and operator control are important. Its size makes it suitable for tunnel wall trimming, localized rock breaking, scaling, and other underground tasks where access is restricted.

For underground operations, machine dimensions and operator handling can be just as important as impact performance. The breaker must be easy enough to transport through tunnel sections and position at the working face.

Where vibration exposure is a concern, buyers should review the manufacturer's vibration specifications and consider appropriate work-rest practices and operator protection. A vibration-reduced design can help reduce operator exposure, but it should not be treated as a replacement for a complete occupational safety program.

TPB60 for Quarry and Medium-Rock Breaking

The TPB60 is a practical option for medium-hard rock applications where more continuous breaking capacity is required.

It can be considered for quarry block preparation, secondary rock breaking, and other applications where operators need more impact capability than a lightweight breaker can provide.

For natural-stone production, the required breaking method should also be considered. If the objective is controlled splitting rather than complete fragmentation, the operator should select the appropriate tool configuration and working technique to minimize unnecessary damage to the stone.

B37 for Compact Working Areas

The B37 provides another option for medium-rock work, particularly where working space is restricted.

It can be considered for narrow trenches, localized demolition, foundation work, and underground areas where a larger breaker would be difficult to position.

The decision between B37, TS11, and TPB60 should ultimately depend on the required breaking output, available space, operator handling requirements, and compressed-air supply.

4. Hard Rock: Focus on Impact Capacity and Air Supply

Hard-rock applications present a different set of requirements. Dense granite, basalt, quartzite, and other competent formations can require substantially more impact energy and longer operating cycles than softer materials.

For heavy-duty rock breaking, models such as B47, B67C, B87C, TPB90, and TCD20 can be considered.

The B47 is suitable for projects that require a heavier-duty breaker while maintaining a manageable machine size.

The B67C and B87C are designed for more demanding breaking applications where higher output and mechanical support are appropriate. In open-pit operations, these machines can be used with suitable support equipment to reduce the physical load on operators.

The TPB90 is another option for demanding heavy-duty applications where continuous rock breaking is required and sufficient compressed-air capacity is available.

For high-volume quarry and mining applications, the TCD20 can be considered where the production scale justifies a larger, higher-output pneumatic breaker and suitable supporting equipment.

The correct choice among these models should not be based on rock hardness alone. Buyers should also consider the size of the material to be broken, required production rate, operating method, compressor capacity, hose configuration, and available mechanical support.

5. Air Compressor Matching Is a Critical Part of Breaker Selection

A pneumatic breaker can only deliver its intended performance when the compressed-air system is properly matched to the machine.

Before purchasing a breaker, the site team should confirm:

• Compressor working pressure

• Available air flow

• Hose internal diameter and length

• Number of pneumatic tools operating from the same compressor

• Pressure loss through hoses, fittings, and connectors

• Expected continuous operating time

Insufficient air supply can reduce impact performance and make a heavy-duty breaker appear less effective than expected. At the same time, an oversized compressor can increase operating costs without providing a practical benefit if the application does not require it.

This is particularly important for hard-rock operations, where the breaker may operate continuously under a high load.

For Latin American mining projects, procurement teams should verify the actual compressor specification available at the site before finalizing the breaker model.

6. Open-Pit Mining and Underground Mining Require Different Selection Priorities

The working environment can change the most suitable breaker even when the rock type is similar.

Open-Pit Mining

Open-pit mines generally provide more working space and easier equipment access. This makes it possible to use larger breakers together with support frames or other mechanical assistance.

For demanding open-pit applications, B67C, B87C, TPB90, and other heavy-duty models may be appropriate when the rock, production requirements, and air supply justify their use.

The main considerations are breaking output, machine positioning, compressor capacity, and the availability of mechanical support.

Underground Mining

Underground operations place greater emphasis on equipment size, transportability, operator access, and ventilation.

Tunnel sections may have limited clearance, and equipment often needs to pass through narrow access routes before reaching the working face. In these conditions, G10, B37, TS11, and TCA7 can be considered depending on the required breaking capacity.

The TCA7 is particularly relevant to localized underground auxiliary work such as rock scaling, tunnel finishing, and bolt-hole cleaning.

For underground projects, buyers should evaluate not only the breaker itself but also how the complete tool package will be transported, connected, serviced, and stored underground.

7. Quarrying Requires a Different Approach From Primary Rock Breaking

Natural-stone quarries do not always want to completely crush the material. In many applications, the objective is to remove unwanted rock or split material while maintaining the integrity of the final stone block.

This changes the equipment selection criteria.

Models such as TS11 and TPB60 may be suitable for quarry applications where operators need controlled breaking rather than maximum fragmentation.

The tool type, chisel selection, impact setting, operator technique, and fracture characteristics of the stone all affect the final result. Buyers should therefore discuss the desired block size and breaking method with the equipment supplier before selecting the machine.

A breaker selected purely according to maximum impact output may not be the most suitable option for controlled stone production.

8. Concrete Demolition and Construction Applications

Pneumatic breakers are also widely used for concrete demolition, foundation removal, trenching, and construction work.

In areas close to existing structures, operators may need greater control over the breaking process rather than maximum impact capacity.

For localized concrete and light demolition work, G10 and B37 can be considered where their capacity is appropriate for the material and required production rate.

The actual selection should take into account concrete thickness, reinforcement, access conditions, operator working position, and the proximity of surrounding structures.

Reducing unnecessary vibration can help improve operator comfort and reduce the transmission of vibration to surrounding areas, but safe demolition practices and structural assessment remain essential.

9. Maintenance and Spare Parts Should Be Part of the Procurement Decision

For mining contractors, the purchase price is only one part of the total equipment cost.

A pneumatic breaker may operate in demanding conditions for extended periods, making wear parts and maintenance support important factors in equipment selection.

Before purchasing, buyers should confirm the availability of commonly replaced components such as:

• Chisels and working tools

• O-rings and seal kits

• Pistons

• Other wear and service components

Standardized spare parts can simplify maintenance and reduce the time required to return equipment to service.

For remote mining projects, procurement teams should also consider whether commonly required parts can be stocked locally or shipped efficiently to the project site.

10. A Practical Procurement Checklist

Before placing an order, mine managers and purchasing teams should collect the following information:

Rock conditions

• Rock type

• Estimated compressive strength

• Degree of weathering

• Fracturing and jointing

• Typical block or material size

Site conditions

• Open pit or underground

• Available working space

• Equipment transportation limitations

• Operator access

• Need for mechanical support

Air supply

• Compressor working pressure

• Compressor air flow

• Hose diameter and length

• Number of tools using the same air source

Operating requirements

• Expected daily operating hours

• Required breaking volume

• Handheld or supported operation

• Primary breaking, secondary breaking, scaling, or controlled splitting

After-sales requirements

• Spare-parts availability

• Chisel and seal-kit supply

• Maintenance capability

• Local or regional technical support

Collecting these details before purchase gives the supplier enough information to recommend a breaker based on the actual application rather than simply selecting the largest available model.

11. Shenli Pneumatic Breaker Selection by Application

As a general starting point:

• G10 — lightweight handheld work, soft rock, concrete, trenching, and localized breaking.

• TPB40 — higher-capacity work in soft-rock and secondary-breaking applications.

• B37 — medium-rock breaking where compact equipment is required.

• TS11 — underground, tunnel, scaling, trimming, and other controlled medium-rock applications.

• TPB60 — medium-hard rock and quarry secondary breaking.

• B47 — heavier-duty rock breaking where additional impact capacity is required.

• B67C / B87C — demanding heavy-duty applications, particularly where mechanical support is available.

• TPB90 — continuous heavy-duty breaking in suitable open-pit and quarry environments.

• TCD20 — high-output applications requiring a larger pneumatic breaker and suitable supporting equipment.

• TCA7 — compact underground auxiliary operations such as scaling and localized finishing work.

This list should be treated as a starting point rather than a substitute for site-specific selection.

Conclusion

The right pneumatic breaker is not necessarily the largest or most powerful model. For mining and quarry operations, the better approach is to match rock conditions, required production, working space, operating method, and compressed-air capacity with the capabilities of the breaker.

Soft-rock and light construction applications may be better served by G10 or TPB40. Medium-hard rock applications can be evaluated with B37, TS11, or TPB60, depending on access and required output. Heavy-duty open-pit and quarry applications may require B47, B67C, B87C, TPB90, or TCD20. For specialized underground auxiliary work, TCA7 provides another compact option.

For procurement teams in Latin America, the most useful first step is to provide the equipment supplier with the actual rock conditions, compressor specifications, working environment, and expected operating schedule. This information allows Shenli to recommend a model based on the project requirements and helps avoid the unnecessary cost of using equipment that is either underpowered or oversized for the job.

For customized pneumatic breaker selection and project-specific technical information, contact Shenli's technical team or review the complete Shenli pneumatic breaker product range.