Hiller DP 45-422 Industrial Decanter Centrifuge with Duplex Stainless Bowl | Sludge Dewatering

🏭 Manufacturer Information

• Manufacturer: Hiller GmbH

• Model: DP 45-422

• Type: Solid Bowl Decanter Centrifuge

• Year Built: 2012

• Condition: Used

• Previous Application: Wastewater treatment

⚙️ Description

This Used Hiller DP 45-422 Solid Bowl Decanter Centrifuge is a robust, continuous-duty separation system engineered for sludge thickening and dewatering in municipal and industrial wastewater operations. Constructed with Alloy 2304 (EN 1.4362) duplex stainless steel on product-contact parts, the machine delivers excellent corrosion resistance and mechanical strength.

The centrifuge operates at a working bowl speed of ~3,500 RPM (with a maximum of 3,800 RPM) and features a single-lead conveyor with lined cake discharge ports and wear liners for extended service life. Driven by an approximately 30 kW (45 HP) main motor, the unit includes the frame/casing, control panel, and ancillary infrastructure, mounted on four legs for stable installation. Ideal for wastewater, biosolids, and industrial slurry separation.

📏 Specifications

• Model: DP 45-422

• Centrifuge Type: Solid bowl decanter

• Bowl Speed:

  • Working: ~3,500 RPM

  • Maximum: 3,800 RPM

• Conveyor: Single-lead

• Cake Discharge: Single row ports with wear liners

• Product Contact Material: Alloy 2304 (1.4362) Duplex Stainless Steel

• Main Drive Motor: ~30 kW (45 HP)

• Electrical: 3/50/380V

• Mounting: On 4 legs

• Controls: Control panel included

• Application History: Wastewater treatment

🧩 Applications

• Municipal wastewater sludge dewatering

• Industrial wastewater treatment

• Biosolids thickening

• Food & beverage effluent treatment

• Chemical and specialty chemical slurries

• Mining and mineral processing effluents

• Pulp & paper wastewater

• Environmental remediation

• Oil & gas produced water (as applicable)

• Continuous solid/liquid separation lines

⚗️ What This Might Be Used For

• Dewatering primary and secondary sludge

• Reducing disposal volume and costs

• Improving downstream drying efficiency

• Recovering clarified centrate

• Continuous, high-throughput solids separation

📦 Products This Is Commonly Used For

• Wastewater sludge and biosolids

• Industrial slurries

• Chemical precipitates

• Mineral fines

• Food processing residues

• Fibrous solids

• Process effluents

• Environmental waste streams

• Treatment plant residuals

• Clarification applications

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