Winch Hoist

Winch Hoist

Winch hoists are mainly divided into open-type and closed-type models, serving as core machinery for gate lifting and lowering in water conservancy projects.

This equipment boasts wide compatibility and matches various gates such as flat steel gates and radial gates. The single-unit lifting capacity can reach hundreds of tons, with a lifting stroke ranging from several meters to dozens of meters. It meets diverse working scenarios including reservoir flood discharge, hydropower station water regulation and ship lock navigation.


Featuring strong load-bearing capacity and stable operation, the travel limit device can control gate lifting error within millimeter level. It is vital equipment to guarantee safe operation of hydraulic projects and water resource regulation.

Specifications


Simple & Reliable Structural Design: The core assembly consists of motor, reducer, drum, steel wire rope and other standard components. The mechanical transmission principle is straightforward with robust overall construction.

Wide Range of Lifting Capacity :Single-unit capacity ranges from 50KN to 7000KN (approx. 5 tons to 700 tons). Double-lifting-point models satisfy ultra-heavy load working conditions.


Adaptable to Various Lifting Heights: Standard units handle general lifting requirements; special high-lift models deliver lifting height over 18m, some up to 120m, ideal for special applications such as deep-hole gates.

Flexible Lifting Point Layout :Single and double lifting point options are available. Double-point models run synchronously via connecting shafts with adjustable center distance between lifting points, suitable for large-span flat and radial gates.

Customizable Lifting Speed :Normal lifting speed: 1.3–3m/min. QPK rapid-closing models feature adjustable emergency closing speed, with speed limited below 5m/min when approaching the gate sill.



Complete Safety Protection System :Standard travel limit switches avoid over-travel operation; hydraulic or electromagnetic brakes and other safety fittings ensure reliable braking when halted.

Multiple Operation Modes :Manual, electric and remote PLC control are supported. Models below 400KN can be fitted with hand cranks for normal operation during power outages.

Strong Site Adaptability for Installation:Fixed-type units for permanent installation; trolley-type units are mobile and mountable on pier tops and other sites. Small-sized models feature extremely easy installation.



Compatible with Multiple Hydraulic: Equipment Suitable for operation of flat gates, radial gates, trash racks and other facilities.

Interlock Function for Local & Remote Control: Functional interlock between local and remote operating systems prevents misoperation, securing safe normal operation and emergency handling.

Serialized Product Models: Multiple series including QPQ (standard fixed type), QPK (rapid gate-closing type), QPG (high-lift type), QPT (trolley type) to match diverse engineering demands.


Item

Parameter Description

Equipment Model

QPQ Fixed Winch Hoist

Rated Lifting Capacity

Multiple specifications from 10kN to 2000kN available

Max Lifting Stroke

Standard: 3m~30m; ultra-high stroke models customizable

Lifting Speed

Adjustable at 2.0m/min

Lifting Point Type

Single lifting point / Double lifting point

Steel Wire Rope

Galvanized anti-corrosion wire rope, wear-resistant and rust-proof

Motor Parameters

Waterproof three-phase asynchronous motor, 380V/50Hz

Reducer Type

Hardened cylindrical gear reducer, high transmission efficiency & low noise

Brake Configuration

Electro-hydraulic block brake, automatic braking upon power failure for safe & reliable stop

Working Class

Special hydraulic A3 class, suitable for intermittent duty with frequent start-stop for daily water regulation

Ambient Operating Temperature

-20℃~+45℃

Safety Protection Devices

Upper & lower travel limit switches, overload torque protection, emergency stop button

Control Mode

Local push-button control; remote PLC centralized electric control optional

Manual Function

Standard manual operating mechanism for emergency gate lifting when power cuts off

Overall Material

Carbon steel welded frame, surface treated with sand blasting rust removal + outdoor anti-corrosion coating


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