ZS Series Excavator Vibrating Screening Bucket

Product Overview

The ZS series excavator vibrating screening bucket is a high-frequency hydraulic screening attachment engineered for rapid separation of soil, sand, river gravel, and demolition waste for 5 to 40-ton excavators. Driven by an imported hydraulic vibration motor, this innovative hydraulic vibrating screening bucket for excavator induces high-frequency oscillation directly across the internal screen deck, eliminating the need for operators to shake or jerk the excavator arm. By reducing cyclic mechanical stress and wear on carrier boom pins and bushings while multiplying throughput compared to traditional skeleton buckets, it serves as an efficient excavator shaker bucket for quarry grading, pipeline bedding, and recycling. Featuring interchangeable screen grids ranging from 10 mm to 140 mm and an interlocking welded structure, the ZS series delivers exceptional productivity and durable jobsite performance.

Excavator Class (Ton)

20 – 27

Operating Weight (kg)

1,540

Working Pressure (MPa / bar)

20 / 200

Product Features

Arm-Friendly High-Frequency Hydraulic Vibration: The integrated hydraulic motor drives the internal screening grid into rapid oscillation, achieving instant material separation without shaking the excavator boom, protecting arm linkages and significantly improving fuel efficiency.
Multi-Fold Productivity Over Skeleton Buckets: Delivers continuous high-speed sorting and sifting cycles, achieving productivity rates several times higher than conventional static grid or riddle buckets.
Interchangeable Modular Screen Panels: The heavy-duty screening deck supports quick-change modular screen plates with apertures from 10 mm up to 140 mm, enabling operators to switch between fine topsoil grading and coarse rock sorting on site.
Mortise-and-Tenon Interlocking Welded Frame: Built from high-strength wear-resistant steel plate utilizing precision mortise-and-tenon interlocking welds, preventing weld cracking and frame deformation under severe vibration loads.
Heavy-Duty Maintenance-Free Bearing System: High-load bearing assemblies and heavy-duty eccentric shafts feature sealed, self-lubricating housings that isolate dust, grit, and moisture, extending service intervals and reducing maintenance downtime.

Applications

Quarry & Gravel Sorting: Rapid separation of mixed river stones, blasted rock, gravel, and sand directly at the pit or riverbank.
Pipeline Trenching & Soil Padding: Sifting excavated ditch spoil directly above laid utility lines and pipelines to create stone-free bedding layers.
Demolition & Construction Site Recycling: Separating concrete chunks, brick fragments, and scrap debris from fine sub-base soil and backfill dirt.
Topsoil & Landscaping Prep: Cleaning topsoil from roots, oversized stones, and organic clumps for landscaping, turf installation, and agricultural bed preparation.
Railway & Roadbed Maintenance: Cleaning and sorting railway ballast, sub-base gravel, and roadbed aggregate.

Product Specifications

Model	Excavator Class (Ton)	Bucket Capacity ( $m^{3}$ )	Operating Weight (kg)	Working Pressure (MPa / bar)	Recommended Flow (L/min)	Screen Mesh Specification (mm)
ZS-09	5 – 9	0.26	600	20 / 200	70	10 – 80
ZS-15	10 – 18	0.50	950	20 / 200	100	10 – 100
ZS-25	20 – 27	1.00	1,540	20 / 200	160	10 – 120
ZS-35	30 – 40	1.30	2,200	20 / 200	200	10 – 140

Note: Custom mounting ear plates, hydraulic quick-coupler adapter pins, and specialized screen bar profiles can be tailored to your specific carrier excavator make and project requirements.

FAQ

Q1: How does the ZS vibrating screening bucket protect the excavator arm compared to regular skeleton buckets? A: Traditional skeleton or grid buckets require the operator to rapidly shake the excavator arm and wrist to separate soil, which causes severe fatigue and wear on boom pins, bushings, and hydraulic cylinders. The ZS series generates high-frequency vibration internally via a dedicated hydraulic motor, allowing the excavator arm to remain static while achieving faster and cleaner screening.

Q2: How easy is it to change the screen sizing panels on the ZS series bucket? A: The screening deck is engineered with bolt-secured modular panels. Operators can quickly replace the standard grid with screen plates ranging from 10 mm to 140 mm aperture sizes using standard workshop hand tools, adapting the bucket to different material classifications in less than 30 minutes.

Q3: What are the hydraulic circuit requirements for operating the ZS series vibrating bucket? A: The ZS bucket connects to the excavator’s standard auxiliary two-way hydraulic line (breaker piping) with a working pressure of 20 MPa (200 bar). Recommended oil flow ranges from 70 L/min for the compact ZS-09 up to 200 L/min for the heavy-duty ZS-35 model.

FAQ

Q1: How does the ZS vibrating screening bucket protect the excavator arm compared to regular skeleton buckets?

A: Traditional skeleton or grid buckets require the operator to rapidly shake the excavator arm and wrist to separate soil, which causes severe fatigue and wear on boom pins, bushings, and hydraulic cylinders. The ZS series generates high-frequency vibration internally via a dedicated hydraulic motor, allowing the excavator arm to remain static while achieving faster and cleaner screening.

Q2: How easy is it to change the screen sizing panels on the ZS series bucket?

A: The screening deck is engineered with bolt-secured modular panels. Operators can quickly replace the standard grid with screen plates ranging from 10 mm to 140 mm aperture sizes using standard workshop hand tools, adapting the bucket to different material classifications in less than 30 minutes.

Q3: What are the hydraulic circuit requirements for operating the ZS series vibrating bucket?

A: The ZS bucket connects to the excavator’s standard auxiliary two-way hydraulic line (breaker piping) with a working pressure of 20 MPa (200 bar). Recommended oil flow ranges from 70 L/min for the compact ZS-09 up to 200 L/min for the heavy-duty ZS-35 model.