excavator cylinder

What should I do if the excavator seal leaks oil? More than 90% of the oil leakage problems are because the rubber excavator seal has been subjected to alternating cold and warm temperatures for a long time, resulting in the loss of a large amount of plasticizers and softeners in the sealing ring, and the problem of corrosion, aging and hardening occurs. The phenomenon of oil dripping started slowly, and the sealing ring broke after a long time. In the past, the oil leakage was solved by dismantling the engine and replacing the oil seal. Now with the development of technology, the leakage can also be solved by not disassembling and repairing. oil problem.

You can get one-stop service of mini excavator hydraulic cylinder here. 1. Professional engineers for designing and improving before ordering 2. Professional equipments for machining and producing after ordering 3. Professional inspectors for checking the quality before shipping 4. Professional after-sale service for solving the questions when using

Hitachi bucket cylinders are widely used for the engineering machinery industries, hitachi bucket cylinder is an important actuator in the hydraulic transmission system, which is an energy conversion device that converts hydraulic energy into mechanical energy. Kyushan provide high quality hitachi bucket cylinder, including boom cylinder, arm cylinder and bucket cylinder, hitachi bucket cylinder. Our products are produced according to original drawings and can guarantee the replacement with the OEM parts.

More than 20 years of designing and manufacturing cat bucket cylinder Specialize in super big long non-standard cat bucket cylinder Designing Capacity: Bore size 20-800mm Stroke up to 16000mm The max. rated work pressure is 32MPa.

Common cat excavator cylinder connection forms: (1) Flange type connection has simple structure, convenient processing and reliable connection, but requires sufficient wall thickness at the end of the cylinder to install bolts or screw in screws. It is a commonly used connection form. (2) The half-ring connection is divided into two connection forms: the outer half-ring connection and the inner half-ring connection. The half-ring connection has good manufacturability, reliable connection and compact structure, but weakens the strength of the cylinder. The application of half ring connection is very common, and it is often used in the connection of seamless steel tube cylinder and end cover. (3) There are two types of threaded connection: external thread connection and internal thread connection, which are characterized by small size, light weight and compact structure, but the structure of the cylinder end is complex. light occasions. (4) The tie rod connection has simple structure, good manufacturability and strong versatility, but the volume and weight of the end cover are large, and the tie rod will stretch and become longer after being stressed, which will affect the effect. Only suitable for medium and low pressure hydraulic cylinders with small lengths. (5) Welded connection, high strength, simple manufacturing, but easy to cause cylinder deformation during welding.

Hitachi hydraulic cylinder for various excavators can be designed and manufactured according to customer requirements: 1. Select precision cold-drawn seamless steel pipe; 2. Cylinder bore size: ф30—ф600mm; length up to 8 meters; 3. The piston rod is made of 40Cr steel, and the diameter of the piston rod is ф5—ф300mm;

The basic 5 parts of the excavator boom cylinder: cylinder barrel and cylinder head, piston and piston rod, sealing device, buffer device, exhaust device. Among them, the cylinder (TUBE) consists of four parts: cylinder block, flange, cylinder bottom and bushing. The piston rod (ROD) consists of three parts: the rod body; the earring; the bushing.