CAP BALANCER is a spring assisted hinge for heavy lid. It has been used for many chemical, pharmaceutical, and food plant in Japan, Southeast Asia and China since 1997.One of the features of this product is the simplicity of the structure. Therefore, installation and adjustment is relatively easy, and it is superior in maintenance.And we have rich line-up of CAP BALANCER. So you can choose model of CAP BALANCER that is suitable for your manhole of the equipment. If you need, we can select the best model of CAP BALANCER.Handy Lock Kit is the locking mechanism of the manhole for the reactor and vessel. It can reduce the operation time and ensure the release and tighten the lid.It has also been used in Japan chemical, pharmaceutical, food plant.It can be used for the container of the internal pressure of 0.2Mpa from the vacuum. This product is used for mainly the glass-lined equipment and fluorine-lined equipment.