Bonvoisin Hydraulic Ram Cylinder 50T Hydraulic Cylinder Jack Porta Power Ram 4" Stroke Single Acting Lifting Cylinders for Machinery Shipbuilding

[Product PARAMETERS]---Tonnage: 30T | Stroke: 4''| Self height: 6.38” | Outer diameter: 4.09'' | Internal diameter:2.95'' | Weight:20.94lbs | Effective area: 5.14sq.in.| Usded with Pump: CP-700 (not included)| Connector: ZG3/8'' male connector
[Automatically Retract] - This hydraulic ram cylinder can automatically retract to the initial height after the oil return valve of the pump is loosened, which is easy and convenient to operate.The integrated molding of the hydraulic cylinder , along with the outer rust and corrosion-resistant coating, ensures long-term reliability and durability.
[Small & Portable] - This hydraulic cylinder is small in size, but strong in load-bearing capacity,with the self height of just 6.38 inches, easily fits into tight spaces, and can lift 20T heavy objects, which is especially suitable for lifting and supporting work in narrow spaces.And its built-in handle design ensures easy transportation and storage.
[Wide Applications] - This hydraulic jack can be widely used in the installation and maintenance of large and medium-sized machinery and equipment in the petroleum, electric power, metallurgical, steel, ship, bridge and other industries.However, it does NOT apply to cars.
[Used with Pumps] - The porta power ram should be used with hydraulic pumps. The 30T/50T can be used with CP-700 hydraulic pump (ASIN: B08QV222RP).

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