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Large water leakage occurs at gaps after the gate is fully closed, poor water sealing effect. How to solve it?
Check if the rubber water stop is aging, deformed or fallen off; adjust gaps on both sides of the gate to compress the rubber evenly; replace the whole sealing strip if severely worn; customized thickened sealing parts for high water head working conditions.
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The hoist lifts and lowers stuckly with excessive resistance, the gate cannot be opened and closed smoothly.
Clear sludge, sand and debris inside the gate slot; fill special lubricating grease for screw rod and gears; calibrate the coaxiality between hoist and gate; replace the whole screw assembly if the screw is bent.
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Outdoor hoists and metal gates suffer severe rust and corrosion.
Double anti-corrosion coating (zinc-rich epoxy primer + top finish) before delivery; hot-dip galvanizing is optional for coastal saltwater areas; paint anti-rust paint regularly and equip rain covers for idle equipment.
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Purchased size and water head parameters mismatch the on-site civil opening, equipment fails to install.
Provide channel width, height, max water head and embedded drawing before ordering, we offer free matched drawings; special-shaped gates and embedded parts can be customized for irregular openings; on-site dimension verification service is available.
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Power failure suddenly for electric hoist, unable to operate the gate manually in emergency.
All electric hoists are equipped with standard manual handwheel for emergency use; large-power models adopt hand brake structure; backup battery power supply is optional for automatic switch during power outage.
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Sediment deposits at river bottom jack up the gate, the gate cannot fully close.
Install sediment cutting edge at gate bottom; reserve flushing pipeline in gate slot for regular hydraulic sand washing; copper-inlaid cast iron gate is wear-resistant and anti-sediment accumulation.
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Hoist motor trips due to overload frequently, easy to burn out the motor when starting and stopping.
Select matched motor power according to actual lifting load; install overload protector and travel limit switches; clear stuck debris to reduce load; adjust upper and lower limit strokes.
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Used in seawater channels, sealing rubber cracks and ages quickly due to seawater corrosion.
Adopt EPDM seawater-resistant rubber sealing strips; hot-dip galvanizing plus heavy anti-corrosion coating for the whole gate; inspect and replace sealing accessories regularly.
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Limited budget for small agricultural irrigation areas, need low-cost water control equipment.
Recommend integrated small cast iron gate + hand hoist combination with low cost and easy installation; simplified non-standard structure with standard anti-corrosion, fully meet basic water control demands of farmland irrigation.
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Missing or damaged spare parts after goods arrival, delaying on-site construction progress.
Count and pack all parts with packing list before shipment; spare consumable parts such as rubber strips and bolts are attached for free; damaged accessories within warranty can be reissued free via fast international logistics.
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The gate slides down automatically after opening, cannot stay at fixed opening steadily.
Install self-locking brake device on hoist; check wear of screw nut and replace nut assembly if worn excessively; adjust brake tightness to prevent sliding caused by dead weight.
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Remote overseas projects lack civil embedding experience, embedded parts pouring goes wrong.
Free supply of embedded construction drawings and technical manuals; online video guidance for pouring; prefabricated embedded parts can be delivered together with gates.
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In cold freezing areas, screw rod freezes and locks up the hoist in winter.
Fill low-temperature anti-freeze grease for screw rod; equip protective cover to isolate snow and frost; electric tracing heating device is optional to avoid freezing stuck.
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Acid and alkaline sewage in wastewater plants erodes the gate, causing metal plate perforation.
Adopt stainless steel gate; coat inner wall with heavy-duty anti-corrosion epoxy paint; thicken plate thickness to enhance acid & alkali resistance.
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Tight construction schedule for bulk orders, worried about long production and sea shipping cycle leading to delayed delivery.
Standard models are in stock, finished and delivered within 7 working days; batch production shortens manufacturing time; fast shipping routes available with whole-process logistics tracking.
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Limit switch fails, gate rushes to top or hits bottom plate and gets damaged.
Adopt dual upper & lower limit protection (mechanical + electrical double limits); calibrate limit accuracy regularly; manually shut down equipment to avoid damage once switches fail.
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Clients want centralized remote control of multiple gates via computer or mobile phone.
Intelligent numerical control hoist with PLC control system is available; support cloud remote operation and water level linkage regulation; can be connected to overall water conservancy monitoring platform of projects.
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Old water conservancy renovation project, original gate foundation is aging, inconvenient for overall demolition and replacement.
Custom embedded small gates fit old gate slots; no large-scale civil demolition needed with modular assembly; shorter construction period and lower renovation cost.
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Gate bears huge water pressure under deep high water head, plate bends and deforms.
Optimize stiffener layout; thicken cast iron or steel plate; add back pressure-bearing supports to improve overall compression resistance.
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No local professional technicians for installation and commissioning after goods receipt overseas.
Full-set installation manuals and HD installation videos attached; one-on-one online video guidance; overseas on-site commissioning by our engineers is available as optional service.
