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The Allu Bucket and Its Global Impact
The Allu screening bucket is a hydraulic attachment designed to transform excavators and loaders into mobile screening and mixing units. Manufactured by Allu Group, a Finnish company founded in 1985, the bucket has gained global recognition for its ability to process materials on-site, reducing transport costs and improving efficiency. With thousands of units sold across Europe, North America, and Asia, Allu has become a leader in material processing attachments for construction, pipeline, and environmental remediation sectors.
The bucket operates using rotating drums fitted with screening blades that crush, mix, aerate, and separate materials. It’s particularly effective for topsoil, compost, demolition waste, and contaminated soils. The screening size is determined by the blade spacing, which can be customized for different applications.
Choosing the Right Blade Size for Topsoil
When screening topsoil, the choice between 15 mm (approximately 5/8 inch) and 25 mm (1 inch) blade spacing is critical. Each size offers distinct advantages:
Terminology Explained
The Allu bucket is compatible with a wide range of excavators, including the John Deere 160 CLC—a mid-sized hydraulic excavator with an operating weight of approximately 38,000 pounds. This pairing offers a balanced combination of reach, hydraulic flow, and lifting capacity.
To ensure optimal performance:
In regions with active pipeline construction, Allu buckets are frequently used to screen topsoil for restoration. Contractors report that the bucket reduces the need for hauling screened material from off-site, saving up to 30% in logistics costs. One operator noted that switching from a trommel to an Allu bucket cut processing time in half for small jobs.
Maintenance and Wear Considerations
A Story from the Field
In 2018, a landscaping firm in Pennsylvania used an Allu bucket to reclaim a former industrial site. The bucket screened over 2,000 cubic yards of topsoil, removing debris and mixing compost. The project was completed two weeks ahead of schedule, and the firm won a municipal contract based on their efficiency.
Conclusion
The Allu screening bucket is a versatile and efficient tool for topsoil processing, offering customizable blade sizes and compatibility with mid-sized excavators like the JD 160 CLC. By selecting the appropriate blade spacing and maintaining the attachment properly, contractors can achieve high-quality results while reducing operational costs. Whether used in pipeline restoration or urban landscaping, the Allu bucket continues to prove its value in the field.
The Allu screening bucket is a hydraulic attachment designed to transform excavators and loaders into mobile screening and mixing units. Manufactured by Allu Group, a Finnish company founded in 1985, the bucket has gained global recognition for its ability to process materials on-site, reducing transport costs and improving efficiency. With thousands of units sold across Europe, North America, and Asia, Allu has become a leader in material processing attachments for construction, pipeline, and environmental remediation sectors.
The bucket operates using rotating drums fitted with screening blades that crush, mix, aerate, and separate materials. It’s particularly effective for topsoil, compost, demolition waste, and contaminated soils. The screening size is determined by the blade spacing, which can be customized for different applications.
Choosing the Right Blade Size for Topsoil
When screening topsoil, the choice between 15 mm (approximately 5/8 inch) and 25 mm (1 inch) blade spacing is critical. Each size offers distinct advantages:
- 15 mm spacing Produces finer material, ideal for landscaping, turf preparation, and residential use. However, it may clog more easily with wet or clay-heavy soils.
- 25 mm spacing Allows faster throughput and handles larger debris. Suitable for rough grading, pipeline backfill, and agricultural use. May leave behind small stones or clumps.
Terminology Explained
- Throughput: The volume of material processed per hour.
- Blade Spacing: The gap between screening blades, determining the size of particles that pass through.
- Carrier Machine: The excavator or loader to which the bucket is attached.
The Allu bucket is compatible with a wide range of excavators, including the John Deere 160 CLC—a mid-sized hydraulic excavator with an operating weight of approximately 38,000 pounds. This pairing offers a balanced combination of reach, hydraulic flow, and lifting capacity.
To ensure optimal performance:
- Verify hydraulic flow requirements The Allu bucket typically requires 80–150 liters per minute (21–40 gallons per minute) at 200–250 bar (2,900–3,600 psi).
- Install a case drain line Prevents pressure buildup and protects seals.
- Use a quick coupler Speeds up attachment changes and improves safety.
In regions with active pipeline construction, Allu buckets are frequently used to screen topsoil for restoration. Contractors report that the bucket reduces the need for hauling screened material from off-site, saving up to 30% in logistics costs. One operator noted that switching from a trommel to an Allu bucket cut processing time in half for small jobs.
Maintenance and Wear Considerations
- Grease bearings daily to prevent seizure.
- Inspect blades weekly for wear or cracks.
- Flush hydraulic lines monthly to remove contaminants.
A Story from the Field
In 2018, a landscaping firm in Pennsylvania used an Allu bucket to reclaim a former industrial site. The bucket screened over 2,000 cubic yards of topsoil, removing debris and mixing compost. The project was completed two weeks ahead of schedule, and the firm won a municipal contract based on their efficiency.
Conclusion
The Allu screening bucket is a versatile and efficient tool for topsoil processing, offering customizable blade sizes and compatibility with mid-sized excavators like the JD 160 CLC. By selecting the appropriate blade spacing and maintaining the attachment properly, contractors can achieve high-quality results while reducing operational costs. Whether used in pipeline restoration or urban landscaping, the Allu bucket continues to prove its value in the field.
