Manual Mechanical QLHP Rotary Toothed Bar Screen 800-3000mm 1

Manual Mechanical QLHP Rotary Toothed Bar Screen 800-3000mm 2

Manual Mechanical QLHP Rotary Toothed Bar Screen 800-3000mm 3

Manual Mechanical QLHP Rotary Toothed Bar Screen 800-3000mm 4

Manual Mechanical QLHP Rotary Toothed Bar Screen 800-3000mm 5

Manual Mechanical QLHP Rotary Toothed Bar Screen 800-3000mm

The Manual Mechanical QLHP Rotary Toothed Bar Screen (800–3000 mm) is a simple, rugged coarse screening device for water and wastewater. Rotating toothed bars mounted on a shaft capture and lift debris while solids slide off into a hopper or collection bin. Designed for manual operation, it needs no power source, offers easy maintenance, and is available in stainless or carbon steel for long service life.

Usage scenarios:

- Small municipal or rural wastewater plants and septic pre-screening where electricity is limited or intermittent.

- Industrial facilities (food processing, textile, paper, metalworking) to remove large solids from process or cooling water.

- Stormwater, river intake, and pumping station protection to prevent blockages and protect downstream equipment.

brand name:

QILEE

Shipping:

Support Sea freight

Payments:

L/C,D/A,D/P,T/T,Western Union,MoneyGram,OA

Lead Time:

1-1(sets):60(days),>1(sets):To be negotiated(days)

Place of Origin:

China

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Slag discharge, high(mm)

400~1200(The order is not specified by 800)

Setting angle a( ° )

60°,65°,70°,75°,80°(The order is not specified by 75°)

Rake the tooth movement speed(mm)

4m/min

Article gate interval(mm)

10,15,20,30,40,50,60,80,100

Device width(mm)

700

Depth of channel(mm)

800

Processing Type

desalination

Power(W)

1 kW

Product name

Mechanical Bar Screen

Voltage

220 V, 380 V

weight (kg)

1000

productivity

500L/Hour

warranty

1 Year

place of origin

Shanghai, China

Robust Compact Customizable Precise

The Manual Mechanical QLHP Rotary Toothed Bar Screen delivers reliable, high‑efficiency debris removal for wastewater plants and pumping stations, protecting downstream equipment with multi‑toothed rakes and overload protection to ensure continuous operation. Its compact rotary‑toothed shape and adjustable installation angles (60°–80°) handle channel widths from 800–3000 mm, simplify maintenance, and support automated control. Packed in standard export cartons with 3–20 day delivery and built to industrial quality standards, this Bar Screen offers durable construction and customizable materials to meet site‑specific needs.

Here are five four-word subtitle options:

The QLHP Manual Mechanical Rotary Toothed Bar Screen (800–3000 mm) is a compact, variable-speed rake grate designed for sewage plants, water supply works and pumping stations to intercept and remove drift and debris, with selectable channel widths, bar spacing and installation angles to suit site conditions. Its mid-chain bar placement and multi-toothed rotary harrow deliver high cleaning efficiency and complete debris capture, while overload protection, automatic slag dumping and optional automated control ensure continuous, reliable operation with low maintenance. Built around a reducer-driven chain and toothed rakes, the Bar Screen features a sturdy frame, adjustable gate, configurable motor power (≈0.75–3 kW) and defined discharge heights, offering robust, easy-to-install performance for varied process requirements.

QLHP Rotary Toothed Screen

The QLHP rotary toothed Manual Mechanical Bar Screen (800–3000 mm) is a rotary rake grille cleaner for sewage plants, water supply facilities and pumping stations that intercepts and removes drifts and debris to protect downstream processes. With mid-chain bar placement, multi-toothed rakes and overload protection, it delivers high cleaning efficiency, prevents chain blockage and offers compact, reliable operation with optional automated control. Driven by a motor and reducer, the chain-mounted rakes lift solids to a discharge chute or collection bin for automatic dumping, and the unit is available in channel widths from 800 to 3000 mm with selectable bar spacings and motor power to fit site requirements.

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Efficient Durable Low-Maintenance Screening

Built by QLHP with decades of wastewater-screening expertise, the Manual Mechanical QLHP Rotary Toothed Bar Screen (800–3000 mm) is crafted from hardened stainless components and precision bearings for extended service life and minimal upkeep. This Bar Screen uses a rotary toothed rake driven by a manual mechanical system to reliably remove large debris, prevent channel blockages, and adapt to variable flow conditions with adjustable bar spacing and robust torque capacity. Key features and advantages include modular 800–3000 mm widths, easy on-site assembly, corrosion-resistant materials, simple tooth replacement, energy-saving manual operation, and proven reliability that lowers operating costs and improves screening performance.

Material introduction

The Manual Mechanical QLHP Rotary Toothed Bar Screen is built with corrosion‑resistant materials — main frames and bars are typically fabricated from stainless steel (SS304/SS316) for durability in sewage and water treatment environments. Critical moving parts such as toothed rakes, chains and shafts use high‑strength alloy steel with surface hardening or anti‑corrosion coatings, while reducers, bearings and seals are chosen for heavy‑duty, wear‑resistant service. Gate, slag board and auxiliary components can be supplied in stainless steel or engineered plastics (HDPE) to match site conditions, and customers should specify preferred materials when ordering.

◎ Premium Stainless Construction

◎ Hardened Alloy Resistant

◎ Economy Epoxy Coated

FAQ

What is the Manual Mechanical QLHP Rotary Toothed Bar Screen 800–3000 mm and how does it work?

The QLHP rotary toothed bar screen is a coarse screening device for open channels and rectangular inlets, available in widths from 800 to 3000 mm. The rotor carries a series of toothed bars that rotate through the flow to catch and extract large debris (rags, branches, plastics). In the manual-mechanical version the rotor is turned by a hand crank or gearbox, lifting debris out of the water and discharging it onto a ramp or conveyor for collection.

Where is this type of screen typically used?

Common applications include inlet screening at small to medium municipal wastewater treatment plants, pump station protection, stormwater and combined sewer screening, intake protection for irrigation and industrial water systems, and pre-screening in various industries (food processing, pulp & paper, textiles) where coarse solids must be removed before pumps or downstream processes.

How do I choose the correct screen width and bar spacing for my site?

Select the width (800–3000 mm) to match your channel or inlet opening. Choose bar/slot spacing based on the size of debris you need to remove—coarser spacing (e.g., 20–50 mm) for large debris and smaller spacing (e.g., 6–15 mm) for finer screening. Also consider peak flow, channel depth, and required head loss; if uncertain, provide site drawings and debris characteristics to the supplier for sizing recommendations.

What are the advantages and limitations of the manual-mechanical version?

Advantages: simple, low-cost, no electric power needed, easy to install and operate in remote sites, good for modest flow rates and intermittent use. Limitations: manual operation is labor-intensive for high debris loads or continuous high flows; not suitable for very large systems where automated or hydraulic drives are required.

What routine maintenance and inspections are required?

Regularly inspect teeth/bars for wear or deformation, check fasteners and shaft bearings, lubricate bearings and gearbox (if fitted), clear accumulated debris from the discharge area, and check seals/guides for proper alignment. Frequency depends on debris load—weekly to monthly for typical municipal inlets, more often under heavy loading. Keep spare teeth/fasteners on hand.

What installation and safety considerations should I follow?

Ensure the screen is mounted to match channel geometry and fixed securely to resist flow forces. Provide safe access for manual operation and debris removal, including handrails and non-slip surfaces. Implement lockout/tagout before maintenance, guard exposed moving parts to prevent entanglement, and confirm head loss and bypass provisions so emergency overflow or bypassing does not damage downstream equipment. Follow local codes and manufacturer installation instructions.

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