SFP Series Excavator Rotary Screening Bucket

Product Overview

The SFP series excavator rotary screening bucket is a heavy-duty hydraulic attachment engineered for in-situ material screening, crushing, mixing, and loading across 10 to 60-ton excavators. Powered by imported hydraulic motors and reinforced high-torque chain drive systems, this multi-shaft rotary screening bucket for excavator continuously breaks down and screens both dry and high-moisture materials without mesh clogging. By converting on-site excavated soil and demolition debris into usable backfill material directly in the trench, the SFP series eliminates external sand purchasing and secondary transport costs. Whether utilized as a dedicated excavator padding bucket for pipeline bedding or deployed in contaminated soil remediation, the SFP series delivers reliable throughput and lower operating overhead.

Bucket Capacity

1.8m³

Operating Weight

2,990

Operating Pressure

20 / 200

Product Features

Anti-Clogging Multi-Shaft Rotary Disc Design: Multiple counter-rotating or co-rotating shafts equipped with wear-resistant disc teeth shred, aerate, and separate wet clay, silt, and cohesive soils, overcoming the blinding and clogging common in conventional vibrating or trommel screens.
Heavy-Duty Hydraulic Motor & Chain Drive: Driven by high-pressure hydraulic motors and heavy-duty industrial roller chains, ensuring consistent torque transfer under continuous working pressures up to 20 MPa (200 bar).
Mortise-and-Tenon Interlocking Welded Structure: The bucket chassis is fabricated from high-strength wear-resistant steel plate with mortise-and-tenon welded joints, providing high structural rigidity and preventing seam cracking during high-load digging and screening.
Sealed Heavy-Duty Low-Maintenance Bearings: Protected by multi-lip dust and moisture seals, the robust bearing assemblies isolate abrasive slurry and soil particles, extending greasing intervals and reducing jobsite maintenance downtime.
Versatile Material Handling Capability: Capable of processing topsoil, compost, peat, soft rock, demolition rubble, and river silt in a single continuous scooping and screening cycle.

Applications

Pipeline Bedding & Fine Soil Padding: Screening excavated trench spoil directly onto laid gas, oil, or utility pipes to form protective, rock-free padding layers without trucking in processed sand.
Soil Remediation & In-Situ Stabilization: Blending stabilizing agents (lime, cement, or bio-amendments) thoroughly with contaminated soil or soft foundation grounds during the screening pass.
Compost & Peat Aeration: Shredding organic waste, green waste, and peat moss to accelerate decomposition and oxygenation in composting facilities.
Demolition Debris & Waste Separation: Separating fine soil and aggregate from oversized rock, concrete chunks, rebar, and roots on demolition and construction recycling sites.
Quarry & Soft Rock Screening: Initial on-site grading of blasted soft rock, gravel, and riverbed aggregate before primary crushing.

Product Specifications

Model	Excavator Class (Ton)	Bucket Capacity ( $m^{3}$ )	Operating Weight (kg)	Operating Pressure (MPa / bar)	Recommended Flow (L/min)
SFP-15	10 – 18	0.6	1,150	20 / 200	70 – 120
SFP-28	20 – 28	1.3	2,000	20 / 200	95 – 160
SFP-40	30 – 40	1.8	2,990	20 / 200	140 – 235
SFP-50	45 – 60	2.3	3,500	20 / 200	190 – 315

Note: Custom mounting brackets, hydraulic quick-coupler pins, and specialized shaft disc spacings can be configured according to specific excavator carrier brands and target output particle sizes.

FAQ

Q1: How do I select the right SFP series screening bucket model for my excavator?

A: Model selection depends primarily on your carrier excavator’s operating weight and auxiliary hydraulic flow. For 10–18 ton excavators, the SFP-15 (0.6 $m^{3}$ m3) is recommended; for standard 20–28 ton excavators, the SFP-28 (1.3 $m^{3}$ m3) is the primary configuration; for 30–40 ton machines, choose the SFP-40 (1.8 $m^{3}$ m3); and for 45–60 ton heavy excavators, the SFP-50 (2.3 $m^{3}$ m3) provides maximum hourly output. YUJI supplies customized mounting brackets compatible with major excavator brands.

Q2: Can the SFP screening bucket process wet, cohesive clay without clogging?

: Yes. Unlike static screen boxes or rotary trommels that clog with moist soil, the SFP series utilizes rotating shafts with aggressive disc teeth. The continuous mechanical tearing and tumbling action shears sticky clay and separates roots and rocks, allowing continuous processing of wet soil, river silt, and compost.

Q3: What hydraulic connections are required on the excavator to operate the bucket?

A: The SFP series operates on standard two-way auxiliary hydraulic breaker or auger piping with a return line. The hydraulic system requires an operating pressure of 20 MPa (200 bar) and flow rates between 70 L/min and 315 L/min depending on the specific model. Connecting hoses and quick-release couplers can be matched to your machine’s circuit specifications upon order.