> Discover the Atlas Copco FlexiROC T35 – a modern crawler drill equipped with a Cummins QSB 4.5 engine, perfect for challenging tasks in quarries and mines. Its high efficiency, drilling precision, and low operating costs make it a reliable solution for the construction and mining industries.

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# Atlas Copco FlexiROC T35 – Crawler Drill Rig with Cummins QSB 4.5 Engine

The Atlas Copco FlexiROC T35 is a modern crawler drill rig designed for demanding drilling operations in quarries, open-pit mines, and infrastructure projects. This model belongs to a highly regarded series of drilling machines distinguished by high efficiency, drilling precision, and low operating costs. A key element of its design is the Cummins QSB 4.5 engine, which serves as the machine's main drive and generates approximately **104 kW** of power, ensuring adequate performance parameters even in the most challenging terrain conditions.

The machine has been designed for the efficient drilling of blast holes with diameters typically ranging from around 64 to 115 mm. The robust chassis design and advanced drilling system ensure high productivity while maintaining full control over the working process.

## Characteristics of the FlexiROC T35 Model

The FlexiROC T35 is based on a durable crawler chassis that provides excellent mobility on uneven and demanding terrain. Its compact transport dimensions and high gradeability allow the machine to be quickly moved between working stations. The design has been optimized for stability during drilling, resulting in high accuracy of the holes produced.

Thanks to its **crawler chassis** and the ability to integrate with modern drilling automation systems, this crawler drill rig is used in:

- Blast hole drilling in open-pit mines
- Quarrying operations
- Road and railway infrastructure projects
- Geotechnical and foundation engineering works
- Preparation of production faces in mining

## Cummins QSB 4.5 Engine – Around 104 kW of Power

The Cummins QSB 4.5 power unit belongs to a family of proven diesel engines used in construction and mining machinery. The four-cylinder, 4.5-liter design ensures high reliability, favorable torque characteristics, and low fuel consumption. The engine performs perfectly in heavy-duty applications where stable operating parameters of hydraulic and pneumatic systems must be maintained under prolonged loads.

A power output of approximately **104 kW at 2200 rpm** and a torque of around **620 Nm** enable efficient operation of the systems responsible for:

- Driving the drilling system
- Driving the rod feed system
- Powering the main hydraulic pumps
- Tramming and moving the machine around the job site

### Key Parameters of the QSB 4.5 Engine

| Parameter | Value |
| --- | --- |
| Engine model | Cummins QSB 4.5 |
| Power output | approx. 104 kW |
| Horsepower | approx. 141 hp |
| Torque | approx. 620 Nm |
| Rated speed | 2200 rpm |
| Fuel type | Diesel |

## Performance and Operating Capabilities

The Atlas Copco FlexiROC T35 has been designed for maximum efficiency in the drilling process. The hydraulic system provides smooth control over all machine functions, and advanced drilling parameter monitoring systems maintain a high quality of drilled holes, regardless of geological conditions.

The drill rig stands out for its high stability during operation, effective energy transfer to the working tool, and the ability to maintain a high pace of work over many hours of operation. The FlexiROC series is valued by operators for its ease of use, high reliability, and reduction of costs related to maintenance downtime.

### Technical Data of Atlas Copco FlexiROC T35

| Parameter | Value |
| --- | --- |
| Drilling diameter | approx. 64–115 mm |
| Maximum hole depth | depending on configuration, approx. 20–35 m |
| Track width | approx. 400 mm |
| Drive / Undercarriage system | Hydrostatic, crawler |
| Main / Chassis engine | Cummins QSB 4.5 |
| Main engine power | approx. 104 kW |
| Auxiliary / Upper structure engine | Not applicable |
| Upper structure engine power | Not applicable |
| Maximum speed | approx. 3 km/h |

## Applications of the Crawler Drill Rig

The FlexiROC T35 was engineered to work in demanding industrial environments where high performance and equipment reliability matter most. The compact design facilitates transport between construction sites, while the crawler chassis allows efficient movement over uneven terrain without the need to prepare additional haul roads.

The machine is most commonly used for:

- Drilling holes for blasting operations
- Quarry operations
- Mining works in open-pit mines
- Construction of roads and transport infrastructure
- Geotechnical and preparatory works

## Summary

The Atlas Copco FlexiROC T35 is an efficient solution for companies carrying out professional drilling work in the mining and construction sectors. Combining a proven drill rig design with the reliable Cummins QSB 4.5 engine, delivering approximately 104 kW of power, ensures high productivity, low operating costs, and operational certainty even during the most demanding field tasks.

Published: 2026-06-24

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Source: https://wibako.com/about-us/blog/687-crawler-drill-atlas-copco-flexiroc-t35-efficiency-and-applications
Contact: +48338704200, biuro@wibako.pl