What jaw crushers are used for
Jaw crushers are often called primary crushers, because they take material straight from the blast face in the quarry to do the first crush. The sturdy fixed jaw and the powerful vibrating jaw combine to grind the stones down. This produces a rough, ungraded aggregate with sharp edges, which can be anything from the minimum size of the jaw down to dust particles.
This stone can be used for rough backfilling, but usually has to be processed further for use in road base, asphalt or concrete. This can be done using an impactor, for softer stone, or a cone crusher, where rock is granite, basalt or another hard rock.
A typical crushing line for asphalt grade stone consists of a jaw crusher like a Sandvik QJ341, a cone crusher like a Sandvik QH331, then a three-deck screen like a Sandvik QA451, to get the four products you need for asphalt.
Mobile jaw crushers
Mobile jaw crushers are ideal for contract crushing or short-term construction projects, because of their flexibility in moving between job sites or around a quarry.
Mobile crushers can be moved right up to the quarry face to crush, removing the need for dumpers and double handing of the rock, then moved away to safe positions while blasting.
Used jaw crushers for sale
From the Sandvik QJ340, to the Extec C12 or the Terex Pegson XA400, we have models for every type of project. We also supply used jaw crushers from other world-class brands including Metso, Kleeman, Powerscreen and Parker.
If you are looking for a used jaw crusher for sale, get in touch and we can let you know what type may be best for you. We have used tracked and static jaw crushers for sale.
Sandvik jaw crushers
The Sandvik QJ340 can be used for demolition and recycling, quarrying and surface mining, road construction, civil engineering contractors, aggregate production and open cast coal mining. Its superb crushing speed and large feed opening 1200 x 750 mm (47 x 29 in) make it highly productive.
The Sandvik QJ341 mobile jaw crusher has the same feed opening size of the QJ340, with a hydraulic adjustable jaw setting for maximised output. The hydraulic drive lets you start the crusher under load, minimising downtime. The main conveyor can be raised or lowered for recycling. Both models have a handy reverse crushing action to relieve any blockages quickly and easily.
The Sandvik QJ340 and Sandvik QJ341 have a capacity of 400 TPH (tons per hour) – where the rated output is 400 TPH, you may achieve 250-300 TPH on harder stone.