
Reactor Manhole Jack Spring Device
Reactor Manhole Jack Spring Device
This is an introduction to the Reactor Manhole Jack Spring System by Wintech Co., Ltd.
What is a Manhole Jack Spring Device for Reactors?
A device that uses the elastic force of springs to smoothly lift heavy manhole covers weighing several hundred kilograms with minimal operator effort and securely hold them at a desired angle during opening and closing operations.
Main Components
Coil Spring: A spring that supports the load of the cover, stores elastic energy, and provides lifting force.
Hinge Arm: A shaft connecting the cover and the main body, designed to evenly distribute the spring force to the cover.
Adjustment Nut/Bolt: A component that finely adjusts spring tension to balance the cover and prevent rapid rebound or excessive sagging.
Stopper and Locking Device: A safety device that holds the cover at a designated angle when fully opened to prevent sudden closing accidents.
Expected Benefits
Improved Operator Safety
It eliminates risks such as finger entrapment and back injuries during opening and closing operations, while preventing sudden cover drop hazards.
Enhanced Maintenance Efficiency
It allows single-operator manhole opening and closing without cranes or hoisting equipment, thereby reducing reactor inspection and maintenance time.
Protection Against Equipment Damage
It prevents foreign matter contamination and incorporates anti-static design to eliminate explosion risks from combustible dust.

