Ningbo Instruments Mechanics Single Acting Low Profile Locknut Hydraulic Cylinders are designed with low height, and small stroke in confined space and working conditions. Single acting low profile locknut hydraulic cylinder height can be as low as 125 mm, however, the capacity can reach 500 ton maximally. The stroke are as high as more than 50 mm. Compared to other cylinders, locknut hydraulic cylinders can support and lift, for long time holding removing the hydraulic pump. When you pump to certain height, you can remove the hydraulic pump. It is widely used in construction, big machinery and heavy equipment installing, maintenance.