This 1992 Allis Mineral Systems 4X12 Quarry Screener is a used vibrating screen — sometimes referred to as a vibratory screen or screening plant — designed to separate and classify aggregate, rock, and crushed material by particle size in quarry and mineral processing operations. Allis Mineral Systems is a well-established name in the heavy minerals and aggregates industry, known for producing robust crushing, screening, and materials-handling equipment for mining, quarrying, and aggregate production.
At the heart of this offering is a single crusher support structure incorporating an Allis Minerals RIPL-FLO Model 4X12 DD XH (Serial No. 03GA07860, Mech No. 4-4, Equipment No. 82.1501) two-deck, heavy-duty incline vibrating scalping screen measuring 4 feet wide by 12 feet long. The top deck is fitted with rubber-covered flat punched plate with 4-inch openings, and both decks are supported by heavy reinforced side plates. Isolation is provided by steel coil springs, and the vibrating action is generated by a single-shaft, two-bearing, oil-lubricated vibrator assembly. Power is delivered via an electric motor mounted on a pivoting motor base, connected through a V-belt drive with guard. A bolt-on feed box is included for directing material onto the screen.
Screened and crushed material is collected beneath the screen and crusher positions by a dedicated under-screen and under-crusher collection hopper, which directs material onto a 36-inch wide by 24-foot long discharge conveyor. The conveyor is equipped with heavy-duty impact components, three-ply rubber conveyor belting, an electric motor, a shaft-mounted gearbox, and a V-belt drive with guard.
The entire assembly is mounted on a 35-foot long, 18-inch I-beam support structure with an I-beam skid base, engineered to carry both the scalping screen and a rock crusher (crusher not included in this sale). The structure is bolted construction, which facilitates disassembly and transport. Full-length walkways run along both sides of the structure, with stairway access provided.
The machine is described as being in generally good condition, having been maintained and kept in active service until it was taken out of service in early 2024. It is located in California, USA, and is offered at $42,500. Disassembly and truck-loading costs are at the buyer's expense.
This description was generated automatically from the listing details and may not reflect every specification. Please confirm with the seller before purchase.