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| Categories | Mechanical Bar Screen | 
|---|---|
| Brand Name: | Dongdai | 
| Model Number: | ZG600-3000 | 
| Certification: | 9001 | 
| Place of Origin: | China | 
| MOQ: | 1 Set | 
| Price: | Negotiatable | 
| Payment Terms: | T/T,Wechat Pay,Alipay | 
| Supply Ability: | 1000 Sets per Years | 
| Delivery Time: | 3-5 weeks | 
| Packaging Details: | Export polywood | 
| Material: | Stainless Steel 304/ 316L | 
| Warranty: | 12 months | 
| Product name: | stainless steel automatic mechanical bar screen | 
| Application: | Sludge treatment | 
| Power: | 5KW | 
| Color: | according customers demands | 
| After-sales service provided: | Online support | 
| Weight: | non-standard | 
| Function: | Water Purification Plant | 
| Service life: | more than30 years | 
| Size: | As the capacity | 
| Capacity: | meet client's needs | 
| Depth of the channel: | 1-10m | 
| Width of grid: | 1-5m | 
| Voltage: | customize | 
| Motor: | Domestic or Imported brand | 
| Keywords: | mechanical bar screen | 
| Operation: | Automatic | 
| Rake material: | Stainless steel or nylon | 
| Company Info. | 
| Jiangsu Longdai Environmental Protection Co., Ltd. | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
China ZG High-Efficiency Rotary Drum Screen for Wastewater Treatment
To Our Valued Customers:
We prioritize authenticity over artificial enhancement. All product images are captured in real-world settings—either at project sites or within our manufacturing workshop. Our expertise lies in producing a comprehensive range of wastewater treatment equipment. Should you have any inquiries, please do not hesitate to contact us. Thank you.
Applications
The ZG series represents an innovative integration of three key
functions: fine screening, residue lifting, and compaction.
Suitable for installation in channels or containers, this unit is
designed for municipal and industrial wastewater treatment plants
to effectively intercept and manage solid waste.
Key Parameters and Installation Dimensions
| Model | ZG600 | ZG780 | ZG1000 | ZG1400 | ZG2200 | ZG2600 | ZG3000 | 
|---|---|---|---|---|---|---|---|
| Gap = 6mm | 53 | 130 | 200 | 419 | — | — | — | 
| Gap = 10mm | 91 | 600 | 241 | 482 | 1315 | 2150 | 2750 | 
| Drum Ø (mm) | 600 | 780 | 1000 | 1400 | 2200 | 2600 | 3000 | 
| Channel Width (mm) | 620 | 820 | 1020 | 1440 | 2440 | 2640 | 3040 | 
Additional Dimensions & Specifications
*(Note: Dimensions such as L, A, h, k, W, a–A, b, c, MaxP1, Load
P2, and Motor Power are model-specific. Please consult our
technical team for detailed configuration support.)*
Structure & Working Principle
The drum screen basket, constructed with precisely spaced bars, is
engineered to optimize filtration. Wastewater enters from the front
of the drum, passes through the screen, and exits through the
outlet. Solid waste is retained on the inner surface of the screen.
When the differential water level reaches a preset threshold, a motor-driven rotary rake mechanism activates. The rake cleans the screened material and lifts it to the top of the drum. Most debris discharges by gravity into a collection hopper; adhered residues are removed by an automatic wiper blade. A integrated screw conveyor then lifts, compacts, and dewaters the waste before final discharge.
Key Features
High Capture Efficiency: The 35° screen inclination and curved design create a self-baffling effect, trapping even fine particulates smaller than the bar spacing.
Self-Cleaning Function: Equipped with integrated spray wash, anti-jamming rakes, and an automatic cleaning blade for continuous operation.
Optimized Hydraulics: The cylindrical structure increases effective screening area, reduces head loss, and minimizes upstream solids buildup.
Corrosion-Resistant Construction: All wetted parts are manufactured from acid-passivated stainless steel, ensuring longevity in harsh sewage and industrial effluent environments.
Space-Saving Integration: Combining screening, conveying, and dewatering into one compact system reduces footprint and downstream handling costs.
Low Maintenance Design: Sealed rotational components require minimal lubrication, and the drive unit operates with extended service intervals.
Outline and Installation Chart

Technical Requirements
1. The channel width and channel depth should be flat, and the dimensional tolerance should be≤ 10mm.
2. The equipment is fixed with expansion bolts on site.
FAQ:
Q: Are You Trading Company Or Manufacture?
A: We Are Both Manufacture And Trading Company. We Have Over 30
Years' Professional Experience As a Waste Water Treatment Equipment
Manufacturer And Engineering Service Enterprise.
Q: What Are Your Main Products?
A:Keywords :Sludge Dewatering Machine Equipment, Screw Type Sludge
Dewatering Press Sludge Screw Press, Dewatering Sludge Machine
Screw Press ,Sewage Treatment Equipment ,Sludge Treatment
Plant,Screw Press Sludge Dewatering ,Dewatering Sludge,Dewatering
Machine For Sludge, Dewatering Sludge Machine Screw Press, Rotary
Drum Bar Screens, Equipment DAF, DAF Price ,Dissolved Air Flotation
System Price, Sludge Shaftless Screw Conveyor,Chemical Dosing
Device ,MBBR Price,MBBR Media,Disc Diffuser, Polymer Preparation
Chemical Dosing System, and other customized machines.
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