This Esch Doppelknie Backenbrecher Quarry Screener is a jaw-crushing machine designed for primary and secondary aggregate reduction in quarrying and mining operations. The double-knee jaw mechanism—indicated by the "Doppelknie" designation—provides a mechanical advantage for processing hard stone and similar materials.
The machine is rated as model RB 1200/900, with a jaw opening (feed inlet) of 1200 × 900 millimetres. The double-knee toggle system is the defining feature of this design, delivering efficient crushing action through the characteristic jaw motion that machines of this class are known for.
The unit dates to 1985 and is offered in used condition. The machine is currently located in Germany. The year of manufacture was not recorded by the seller and is therefore an estimate; prospective buyers should verify the machine's age and service history through direct inspection or further correspondence.
This description was generated automatically from the listing details and may not reflect every specification. Please confirm with the seller before purchase.