Features UMB bottle jacks are produced with a one piece base, cylinder and reservoir. This eliminates any potential leaks between the base and reservoir. All jacks are supplied with a operating lever. 20, 30 and 50 tonne models have a carry handle for ease of transport. All models can be used horizontally with the pumping unit below the cylinder. The seals are easily replaced cutting service time down to the minimum. Jacks are fitted with a stroke limiting device and safety valves. OPERATIONAL AREAS These jacks are ideal for a variety of lifting or pushing jobs and can be used in many different industries.