sbm mining jaw crusher qj340

SBM Mining Jaw Crusher QJ340: A Comprehensive Guide for Aggregate and Mining Operations

The SBM Mining Jaw Crusher QJ340 represents a significant advancement in mobile crushing technology, designed to meet the demanding requirements of quarrying, mining, construction, and recycling operations. This track-mounted primary jaw crusher combines robust engineering with intelligent design to deliver exceptional productivity and reliability in the most challenging working environments.

What Is the SBM QJ340 Jaw Crusher?

The SBM QJ340 (formerly known as the Sandvik QJ340) is a heavy-duty mobile jaw crusher built around a 1,200 mm × 750 mm (47″ × 29″) single-toggle jaw chamber. It is engineered for primary crushing applications where high throughput, excellent reduction ratios, and consistent product quality are essential. The machine is equally at home processing hard rock, demolition debris, asphalt, and concrete.

Its compact footprint and track-mounted design allow operators to move the unit directly to the working face, eliminating the need for costly material haulage and reducing overall operational costs.

Key Technical Specifications

These specifications make the QJ340 a versatile solution for medium-to-large-scale crushing contracts.

Standout Features of the SBM QJ340

1. High-Performance Jaw Chamber

The single-toggle jaw design delivers aggressive crushing action with a high reduction ratio. The deep crushing chamber accepts large feed sizes while maintaining steady output, minimizing the need for secondary breaking.

2. Hydraulic CSS Adjustment

Hydraulic closed-side setting (CSS) adjustment allows operators to fine-tune the output gradation quickly and safely. This is particularly valuable when producing specific aggregate sizes for construction specifications.

3. Reverse Crushing Capability

The hydraulic drive system enables the jaw to reverse when processing sticky or fibrous materials, preventing blockages and reducing downtime. This feature is a major advantage in recycling and demolition applications.

4. Track-Mounted Mobility

The heavy-duty crawler undercarriage provides excellent traction and stability on uneven terrain. Radio remote control allows safe maneuvering around job sites, stockpiles, and confined working areas.

5. Intelligent Control System

An advanced PLC control system monitors engine load, crusher parameters, and hydraulic pressures in real time. This reduces the risk of overload, optimizes fuel consumption, and extends component life.

6. Dust and Noise Suppression

Optional dust suppression systems and sound-attenuated engine enclosures help operators comply with environmental regulations in urban and residential areas.

Applications of the SBM QJ340

The QJ340 is deployed across a wide range of industries:

• Quarrying: Primary crushing of granite, basalt, limestone, and other hard rocks.
• Mining: Reducing run-of-mine ore to transportable sizes.
• Construction & Demolition: Processing concrete, bricks, and asphalt for reuse.
• Recycling: Turning C&D waste into valuable recycled aggregates.
• Infrastructure Projects: On-site crushing for road, rail, and bridge construction.

Benefits for Your Operation

Choosing the SBM Mining Jaw Crusher QJ340 delivers measurable business advantages:

1. Lower Cost Per Tonne — On-site crushing eliminates haulage expenses and reduces reliance on third-party processing.
2. Fast Setup and Relocation — Track mobility means the crusher can be operational within minutes of arrival.
3. High Uptime — Durable wear parts and easy maintenance access minimize unplanned stoppages.
4. Consistent Product Quality — Precise CSS control ensures uniform output for demanding specifications.
5. Environmental Compliance — Dust and noise control options support sustainable operation.

Maintenance and Wear Parts

Routine maintenance is straightforward thanks to well-positioned service points and diagnostic monitoring. Key wear components include:

• Fixed and moving jaw plates
• Cheek plates
• Toggle plates and seats
• Jaw stock bearings

Using genuine SBM replacement parts ensures optimal fit, longer service life, and preserved crushing performance.

Frequently Asked Questions

Q: What is the maximum feed size for the QJ340?
A: The QJ340 accepts feed material up to approximately 650 mm, depending on the material’s characteristics and the chosen CSS.

Q: Can the QJ340 handle reinforced concrete?
A: Yes. With its powerful jaw action and reverse crushing capability, it effectively processes reinforced concrete, though pre-cutting of rebar may improve efficiency.

Q: Is the QJ340 suitable for hard rock mining?
A: Absolutely. Its robust chamber and high crushing force are designed for hard and abrasive materials such as granite and basalt.

Q: What is the typical fuel consumption?
A: Consumption varies with load and application, but the QJ340’s intelligent engine management optimizes fuel use, typically ranging from 30–45 liters per hour under normal operating conditions.

Conclusion

The SBM Mining Jaw Crusher QJ340 is a proven, high-capacity mobile crushing solution that combines power, mobility, and intelligent control. Whether you are operating a quarry, processing demolition waste, or running a mining project, the QJ340 delivers reliable performance, lower operating costs, and consistent product quality.

For businesses seeking a dependable primary jaw crusher that adapts to diverse applications, the SBM QJ340 remains a top-tier choice in the mobile crushing market.

Looking to integrate the SBM QJ340 into your operation? Contact an authorized SBM dealer to discuss configuration options, availability, and financing solutions tailored to your project.