How to Select Lifting Equipment for Water Treatment Plants

In short: Kelude Heavy Industry provides crane configuration solutions for water treatment plants covering all four process areas—intake, purification, supply, and sludge handling—with lifting capacities from 2 to 32 tons and spans from 6 to 30 m. Total plant investment in lifting equipment typically ranges from approximately $15,000 to $150,000. The water intake pump house is equipped with moisture-proof electric hoists (5–16 t), the purification workshop uses stainless steel anti-corrosion hoists (2–10 t), the water supply pump house features an LD type single-girder crane (5–20 t) with Variable Frequency Speed Control, and the sludge dewatering room is fitted with a stainless steel anti-corrosion jib crane (1–5 t)—delivering full-process lifting coverage from water intake to supply.

Crane Selection Guide for Water Treatment Plants

Intake Section | Purification Section | Supply Pump House | Sludge Handling

Crane solutions for the four process areas of a water treatment plant: intake, purification, supply, and sludge handling.

Crane selection for water treatment plants—intake, purification, supply, and sludge handling sections

Scenario 1 — Intake Section

• Lifting capacity: 3t–16t, LD type / hoist

• Pump and screen maintenance

• High humidity / moisture-proof

• Outdoor / waterproof and anti-corrosion

Pump maintenance | Moisture-proof

Scenario 2 — Purification Section

• Lifting capacity: 5t–20t, LD/LH type overhead cranes

• Sedimentation tank and filter maintenance

• Chemical dosing and disinfection equipment

• Humid / corrosion-resistant

Filter/sedimentation | Anti-corrosion

Scenario 3 — Supply Pump House

• Lifting capacity: 5t–20t, LD type / hoist

• Supply pump and motor maintenance

• Electrical equipment maintenance

• Chlorination / anti-corrosion

Supply pump/chlorination | Anti-corrosion

Scenario 4 — Sludge Handling

• Lifting capacity: 3t–10t, MH type / hoist

• Dewatering machine / centrifuge

• Outdoor / anti-corrosion

• Humid sludge environment

Dewatering/sludge | Anti-corrosion

Selection Parameters Across the Four Sections

Kelude Heavy Industry: Overhead & Gantry Crane Solutions

Kelude Heavy Industry specializes in the design and manufacture of heavy-duty overhead cranes, gantry cranes, and electric hoists. Our equipment is engineered for demanding industrial environments, delivering reliable performance, precise load control, and long-term operational efficiency. From single-girder cranes for light assembly work to double-girder models for high-capacity material handling, we provide tailored solutions that meet rigorous safety and productivity standards.

Engineered for Performance and Safety

Our cranes are built with a focus on durability and operator safety. Key features include:

  • High-strength steel structures for maximum rigidity and reduced deflection.
  • Precision-engineered travel drives for smooth, accurate positioning.
  • Advanced variable-frequency drives (VFD) for controlled acceleration and deceleration, minimizing load swing.
  • Comprehensive safety systems — including overload protection, limit switches, and emergency stops — compliant with international standards (ISO 4301, IEC 60204-32).
  • Low-maintenance components designed for extended service life in continuous operation.

Customized Solutions for Diverse Applications

We understand that every facility has unique material handling requirements. Our engineering team works closely with clients to design cranes that integrate seamlessly into existing workflows. Whether you need a low-headroom design for limited building heights, a corrosion-resistant finish for harsh environments, or explosion-proof equipment for hazardous areas, we deliver a solution that fits your exact specifications.

Technical Specifications and Load Capacities

Our standard product range covers a wide spectrum of capacities and configurations. The table below outlines typical specifications for our overhead and gantry crane models. Custom designs are available upon request.

Model TypeCapacity (ton)Span (m)Lifting Height (m)Duty Cycle
Single-Girder Overhead Crane1 – 203 – 303 – 18A3 – A5
Double-Girder Overhead Crane5 – 10010 – 406 – 30A5 – A7
Gantry Crane (Full/ Semi)5 – 15010 – 456 – 25A5 – A7
Electric Wire Rope Hoist1 – 50-Up to 30A3 – A6

Frequently Asked Questions

Q: What is the typical lead time for a custom crane?
A: Lead times vary based on the complexity and specifications of the crane. Standard models can be delivered in 4-6 weeks, while custom-engineered solutions typically require 8-12 weeks from design approval.

Q: Do you provide installation and commissioning services?
A: Yes, we offer comprehensive installation, commissioning, and operator training services. Our technicians ensure your crane is set up correctly and safely, minimizing downtime and ensuring immediate operational readiness.

Q: What after-sales support do you offer?
A: We provide full after-sales support, including spare parts supply, preventive maintenance programs, and 24/7 technical assistance. Our global service network ensures rapid response times and minimal operational disruption.

Q: Can your cranes be integrated with existing automation systems?
A: Absolutely. Our cranes can be equipped with various control interfaces, including remote controls, radio controls, and fully automated systems that integrate with your existing PLC or warehouse management software.

Contact Kelude for a Custom Quote

A: Ready to enhance your material handling capabilities? Contact our engineering team today to discuss your specific requirements and receive a detailed proposal. We are committed to providing high-quality, cost-effective crane solutions that drive your operational success.

Parameter ItemWater IntakeWater PurificationWater SupplySludge
recommended modelLD Type/HoistLD/LH Typeoverhead typeLD Type/HoistMH Type/Hoist
Lifting Capacity3t~16t5t~20t5t~20t3t~10t
special requirementsMoisture-Proof/WaterproofAnti-corrosion/MoistureChlorination/Anti-corrosionSlurry/Anti-corrosion
$15,000–$445,000
Total Plant Investment
2–250t
Lifting Capacity Range
6–36m
Span Range
A3–A8
Work Duty Classification
Explosion-Proof / Anti-Corrosion
Special Protection
4-Zone Coverage
Full-Process Solutions

Lifting Challenges Across Water Treatment Plant Sections

Water treatment plants operate across four core sections—intake, purification, distribution, and sludge handling—all characterized by high humidity (80%–95% relative humidity) and corrosive chlorine- or aluminum-based media. The intake section (screen channels and inlet pipes at the intake pump station) is typically located near rivers or lakes, with individual pumps weighing 3–15t. Moisture-proof electric hoists (5–16t capacity, lifting height ≥20m for deep well pump stations) are recommended here, featuring IP55 motors, stainless steel fan covers, and heating tapes to prevent condensation in underground stations where temperature swings are common. In the purification section (flocculation tanks, sedimentation basins, filter rooms, and chemical dosing areas), individual equipment pieces weigh 1–8t. SUS304 stainless steel anti-corrosion electric hoists (2–10t capacity) paired with hot-dip galvanized rails and IP66 electrical control boxes are the recommended solution, with the chlorine dosing room being a key corrosion protection zone. The distribution section (discharge pipes and valves at the water supply pump house) handles pumps weighing 5–20t each, where LD type single-girder electric cranes (5–20t, 8–24m span) with variable-frequency speed control and radio remote control are recommended. The sludge handling section (thickening, dewatering, and off-site transport) primarily uses stainless steel dewatering machines (2–8t each), best served by stainless steel anti-corrosion jib cranes positioned over each unit. Kelude Heavy Industry offers a full range of stainless steel anti-corrosion lifting equipment engineered specifically for the high-humidity, chlorine-rich environments of water treatment plants.

Why Choose Kelude Heavy Industry

Kelude Heavy Industry has specialized in water treatment plant lifting systems for years, delivering tailored solutions that cover intake, purification, distribution, and sludge handling. Our product line includes explosion-proof electric hoists, stainless steel anti-corrosion hoists, LD type overhead cranes, MH type gantry cranes, and KBK flexible systems—meeting the diverse hoisting requirements of every section within a water treatment facility.

Full Working Condition Coverage
From compact KBK systems (125kg) to large-tonnage custom cranes (250t), from standard workshops to Ex d IIB T4 explosion-proof zones, and from ambient temperatures down to -162°C, Kelude's product line spans every lifting requirement across water treatment operations—consolidating procurement and reducing multi-vendor coordination costs.
Qualifications & Certifications
Kelude Heavy Industry holds a special equipment manufacturing license, explosion-proof electrical installation qualifications, and ISO 9001/ISO 14001/ISO 45001 certifications. All explosion-proof products pass Type Tests conducted by the National Explosion-Proof Electrical Equipment Quality Supervision and Inspection Center, and every unit ships with a complete Certificate of Conformity and inspection report.
Full-Process Service
From site survey and solution design through equipment manufacturing, installation & commissioning, acceptance and training, to after-sales maintenance—Kelude delivers a complete full-process service. Key equipment carries a 2-year warranty period, backed by 12 after-sales service network locations nationwide, with on-site response within 48 hours of a service call and 48-hour dispatch for common spare parts.

Frequently Asked Questions (FAQ)

Q: Why do water treatment plants require stainless steel cranes?
A: The most common sources of corrosion in water treatment plants are the coagulants added during treatment (PAC—polyaluminum chloride, which contains Cl⁻) and disinfectants (Cl₂/NaClO; sodium hypochlorite decomposes to release Cl₂O). These chemicals volatilize to form a corrosive atmosphere (Cl⁻ concentrations can reach 5–15 ppm), and with workshop humidity at 85%–95%, standard carbon steel cranes begin to show signs of corrosion within 3–6 months. An anti-corrosion solution combining SUS304 stainless steel with hot-dip galvanized rail extends the service life from 2–3 years to 10–15 years.
Q: Why is a lifting height of ≥20m required for the crane in a water intake pump station?
A: Water intake pump stations are typically designed as underground or semi-underground structures, with pumps installed in a pit 8–20m below grade. The required lifting height is calculated as: pit depth + pump height + spreader height + safety margin. For a surface-water intake station, for example, the pit depth ranges from 6 to 12m, a vertical mixed-flow pump stands 2 to 4m tall, the electric hoist spreader adds 0.5m, and a safety margin of at least 1m is required—bringing the total to 9.5–17.5m. Kelude recommends specifying a hoist lifting height of 20–28m (including margin) for water intake pump stations.
Q: What special requirements apply to cranes used in the chlorination room of a water treatment plant?
A: In the chlorination room (where chlorine cylinders are stored and replaced), Cl₂ concentrations can reach 5–15 ppm (and up to 50 ppm during short-term leaks). When Cl₂ comes into contact with moisture, it forms highly corrosive acids—HCl and HClO. Special requirements include: ① Stainless steel SUS316L hooks (with molybdenum for superior resistance to chloride pitting over 304) or titanium alloy hooks; ② IP66 fully sealed motors with a dedicated external fresh-air duct to prevent ingestion of chlorine-laden air; ③ A pressurized explosion-proof type electrical control box (Ex p)—although the area is not classified as an explosion-proof zone, the positive pressure prevents corrosive gas ingress; ④ A dedicated lifting spreader for chlorine cylinders (C-Hook with anti-slip chain to prevent cylinder slippage).
Q: How many cranes does a small water treatment plant (10,000 m³/d) need?
A: For a small plant, we recommend the following configuration: ① One moisture-proof electric hoist (5t) in the intake pump house — for water intake pump installation & repair, approx. $4,400–$7,400; ② One stainless steel hoist (3t) in the water treatment workshop — for agitator/chemical dosing equipment maintenance, approx. $5,900–$8,900; ③ One LD type single-girder crane (10t) in the water supply pump house — for water supply pump/valve servicing, approx. $7,400–$11,900; ④ One stainless steel cantilever jib crane (2t) in the sludge dewatering room — for dewatering machine maintenance, approx. $3,000–$5,900. Total investment for the four units: approx. $20,800–$34,100.

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