Cast Iron Submersible Mixer for Sludge Storage Tank and Small Anaerobic Tank Wastewater Treatment

Cast Iron Submersible Mixer for Sludge Storage Tank and Small Anaerobic Tank Wastewater Treatment

Brief Description

QJB cast iron submersible mixer adopts integrated cast iron impeller and housing. It creates powerful turbulent flow for local agitation in medium & small wastewater tanks, preventing sludge sedimentation and adapting to water containing hard sundries.

Product Overview

The complete unit operates fully submerged below the liquid surface. All wetted components are integrally cast, featuring high structural rigidity and outstanding impact resistance. Equipped with a sealed submersible motor and double mechanical seal structure, this series enables long-term continuous operation in sludge storage tanks, anoxic tanks and small biochemical tanks.

Working Principle

The submersible motor directly drives the cast impeller to rotate at high speed. The rotating impeller generates strong turbulent thrust to keep solid particles evenly suspended in liquid. Matched with aeration facilities, it optimizes oxygen distribution and improves treatment efficiency in small pools.

Product Parameters

Key Design & Performance Features

Adopting integral cast iron construction, this mixer delivers excellent impact resistance and runs steadily under harsh water conditions containing hard solid impurities. It is fitted with a back-swept cast impeller featuring optimized hydraulic design. The self-cleaning property effectively lowers the risk of fiber entanglement. The motor is Class F insulated with IP68 waterproof rating, equipped with imported bearings and an anti-condensation device. Dual tungsten carbide mechanical seals are adopted. External fasteners can be customized to stainless steel or anti-corrosion carbon steel. Compact overall structure enables easy on-site installation and routine maintenance.

Applications

Suitable for municipal sewage sludge storage tank, small anaerobic tank, anoxic tank and regulating tank; also applicable to industrial wastewater mixing with suspended solids. Operation requirements: Max medium temperature ≤40℃; pH value 5~9; Liquid density ≤1150kg/m³; Maximum submerging depth ≤20m.

Company Profile

WESUS is a leading manufacturer and total solution provider for advanced sewage and sludge treatment systems. Founded in Yixing, China in 2013, we offer reliable, cost-effective equipment and engineering services to global clients. Certified with ISO 9001, ISO 14001 and ISO 45001, we boast strong in-house R&D and manufacturing capabilities supported by a large production base, a professional technical team, patents and university cooperation. Our comprehensive product range includes screening, filtration, sludge dewatering, mixing, aeration and customized solutions. With end-to-end services from design to after-sales support and proven global project experience, we have earned wide recognition including national high-tech enterprise and 5-star after-sales certifications. Adhering to the philosophy of real innovation, excellence and win-win cooperation, WESUS is committed to providing smart, sustainable water treatment solutions for municipal and industrial clients worldwide.

FAQ

Q1: Are you a direct manufacturer? What certifications do you hold?
A: We are a direct manufacturer with our own production facilities and R&D team. We maintain full control over quality, cost, and delivery, and hold certifications including ISO 9001/14001 for our core products.

Q2: What types of collaboration models do you offer?
A: We provide flexible solutions:
- Equipment Supply: Standalone or packaged systems.
- Turnkey Solutions (EPC): Design, procurement, construction, and commissioning.
- Technical Cooperation: Process upgrades, operational maintenance support, and technical consulting.

Q3: How is after-sales service and support ensured?
A: We provide full lifecycle support:
- Warranty: 12–24 months on core equipment.
- Response: 7x24 remote support with fast on-site assistance when needed.
- Spare Parts: Genuine parts are stocked for long-term supply security.
- Maintenance: Annual Maintenance Contracts (AMC) are available to ensure long-term system efficiency.

Q4: What is your typical project execution process?
A: Our standardized workflow ensures efficiency and transparency:
1. Requirement Analysis → 2. Proposal & Quotation → 3. Design Finalization → 4. Production & Factory Testing → 5. Shipping & Installation → 6. Commissioning & Training → 7. After-sales Service.
Customer involvement is encouraged at key milestones.

Q5: Can you provide references or case studies?
A: We have extensive global project experience across municipal and various industrial sectors. We can provide detailed, anonymized case studies and client references upon request.

Q6: What are your payment terms and delivery lead times?
A: - Payment: We accept T/T and L/C, with standard industry progress payment terms.
- Lead Time: Standard equipment: 4–8 weeks. Large custom projects: 12–20 weeks.
A clear production schedule is provided upon contract signing.

Q7: How do you serve international clients?
A: We are experienced in international projects, arranging complete logistics (FOB, CIF, DDP, etc.) and providing full customs documentation. Our designs pre-consider compliance requirements in target markets.

Q8: Can you upgrade or retrofit existing systems?
A: Yes. We specialize in evaluating existing facilities and providing customized retrofit and expansion solutions to enhance performance and capacity with minimal investment and downtime.

Q9: How can we start a consultation?
A: Please contact our Sales Engineering team. To facilitate an efficient discussion, please have your treatment requirements, water quality data, and site information ready. We will provide a preliminary proposal and professional advice.