At standard weir setting, the LSX / 2LSX series loses approximately 8–18% of the sub-0.15 mm fraction. For applications where fine-sand recovery is commercially important, pair the screw washer with a fine-sand recovery system (hydrocyclone bank plus dewatering screen) on the overflow stream to capture and dewater the fines before they enter the settling pond.

A screw washer uses a rotating helical flight to convey, agitate, and drain sand along an inclined tub. It handles higher feed rates and is better suited to feeds with high clay or silt content requiring extended agitation. A wheel washer uses a large-diameter impeller with lifting buckets and is gentler on the product, with slightly lower fines loss. For coarse-sand or light washing duties at moderate capacity, a wheel washer may be preferred; for high-capacity or high-contamination feeds, the screw washer is the standard choice.

Single-screw LSX models use one helical flight in a single tub, covering 15–120 t/h. Twin-screw 2LSX models place two parallel screws in a shared tub, roughly doubling throughput to 60–280 t/h for the same footprint length. Both share the same mechanical architecture and spare parts - only the tub width and drive count differ, simplifying inventory for plants that run both types.

Yes. The open-tank design allows slurry overflow to drain freely, preventing clay build-up in the washing zone. For feeds with clay content exceeding 15%, we recommend pre-washing or pre-screening to protect the deceleration drive and extend bearing service intervals

Fine-sand loss depends on overflow weir setting, feed gradation, and target product spec. With the adjustable weir set conservatively, the XSD series typically loses 5–15% of the sub-0.15 mm fraction - unavoidable material that would otherwise raise MB value. For applications requiring fine-material recovery, pair the wheel washer with a fine-sand recovery unit (hydrocyclone + dewatering screen).

A wheel washer uses a large impeller fitted with lifting buckets that scoop washed sand out of the water tank and discharge it over a screen. It is simpler in construction and gentler on the product, making it preferred for soft-to-medium hardness natural sand. A screw washer uses a helical flight to convey and drain sand; it handles higher throughput but may produce slightly more fines loss. Both types are available in our lineup - contact us to match the right washer to your application.

Yes - all PLF models are designed for continuous duty. Bearing temperature and vibration should be monitored during the first 200 hours of operation to establish baseline values, and lubrication intervals followed as specified in the maintenance manual. Planned hammer inspection and rotation at 300-hour intervals is recommended for continuous operation on abrasive feed materials.

Yes - the top access door provides clear access to the hammer mounting positions. Individual hammers can be removed and replaced with standard tools without lifting the rotor out of the machine. A full hammer set change typically takes 2–3 hours for a two-person maintenance team. Hammers are symmetric and can be rotated 180° before replacement to equalise wear and double effective service life.