Arm Cylinder for Doosan Large Excavator DH370

Introduction

Definition and Explanation

The arm cylinder is a type of specially designed hydraulic cylinder that is primarily used to provide linear motion and power to the arms of various types of machinery, such as excavators, cranes, and mechanical arms. The arm cylinder plays a crucial role in the hydraulic system, enabling the attached tool or accessory to move and control effectively. These cylinders not only provide smooth movement but also withstand heavy loads, ensuring efficient operation and reliability of the machinery under various working conditions.

Features

• High Efficiency Transmission

  The arm cylinder can provide powerful linear motion and force, ensuring high-efficiency performance of the mechanical arms in various operations.

• Precision Control

  Through the hydraulic system, the arm cylinder can achieve precise motion control, making the operation of the attached tool more flexible and accurate.

• Strong Durability

  The arm cylinder is usually made of high-strength materials, with good abrasion and corrosion resistance, suitable for long-term use in harsh environments.

• Multi-functional Adaptability

  These cylinders can be widely used in various mechanical equipment, such as excavators, cranes, and mechanical arms, to adapt to different work requirements.

• Easy Maintenance

  The design considers ease of maintenance and replacement, making regular inspections and maintenance more convenient, reducing equipment downtime.

We can produce this product and our product can perfectly replace these hydraulic cylinders.

Application

• Construction Engineering

  In excavators and cranes, the arm cylinder is used to control the movement of the bucket or boom, for earthmoving, material handling, and structural installation.

• Manufacturing Industry

  In automated production lines, the arm cylinder is used for the motion of mechanical arms, for assembly, welding, and handling processes, improving production efficiency and accuracy.

• Agricultural Machinery

  In agricultural machinery such as harvesters and planters, the arm cylinder controls the movement of the operating arm, performing tasks such as sowing, fertilizing, and harvesting.

• Mining

  In mining equipment, the arm cylinder is used to control the arm movement of mining equipment, for mining and material handling.

• Logistics and Transport

  In forklifts and handling robots, the arm cylinder is used to control the lifting and moving of the forks, for material handling and stacking.

Design Consideration and Selection Standards

• Bearing Capacity

  The arm cylinder must be able to bear the weight of the attached tool or accessory and the loads during operation.

• Sealing

  The arm cylinder uses various sealing members, such as piston seals, rod seals, etc. The sealing members are made of wear-resistant materials such as polyurethane and nitrile rubber. The cylinder body and the threaded end surface are finely processed to improve wear resistance. The arm cylinder needs to be regularly refilled with a suitable amount of hydraulic oil for lubrication.

• Durability

  The arm cylinder must be made of high-strength materials with good wear and corrosion resistance to ensure long-term use in harsh environments.

• Safety

  The arm cylinder must be designed and manufactured to meet safety standards to prevent accidents during operation.

• Maintainability

  The design of the arm cylinder must consider ease of maintenance and replacement to facilitate regular inspection and maintenance, reducing equipment downtime.

Sealing and Lubrication

The arm cylinder uses various sealing members, such as piston seals, rod seals, etc. The sealing members are made of wear-resistant materials such as polyurethane and nitrile rubber. The cylinder body and the threaded end surface are finely processed to improve wear resistance. The arm cylinder needs to be regularly refilled with a suitable amount of hydraulic oil for lubrication.

Maintenance and Preventive Measures

• Regularly inspect the arm cylinder for wear and tear of sealing parts, cracks, and deformation of the cylinder body, etc.

• Regularly refuel the arm cylinder with a suitable amount of hydraulic oil and replace the oil according to the specified time or mileage.

• Check the mounting bolts and nuts of the arm cylinder regularly to ensure they are tightened to the specified torque value.

• Replace worn or damaged sealing members in time to prevent oil leakage.

• Replace the arm cylinder according to the specified service life or mileage to ensure safe operation.

Installation Guide

Before installation, thoroughly clean the mounting surface of the arm cylinder and the connected parts, check the mounting dimensions, and confirm that the mounting direction is correct. During installation, use suitable tools and follow the specified torque values to avoid damaging the cylinder body and sealing members. After installation, conduct a pressure test and check for leaks before putting into operation.

Safety Considerations and Environmental Factors

During operation, follow the specified operating procedures and safety precautions to prevent personal injury and equipment damage. It is necessary to pay attention to environmental factors such as temperature, humidity, and dust to ensure the stable and reliable operation of the arm cylinder.

Troubleshooting and Common Issues

• Oil Leakage

  The sealing member is worn or damaged, and the cylinder body or the threaded end surface is damaged. Replace the sealing member or repair the cylinder body and threaded end surface.

• Abnormal Noise

  The cylinder body or the piston rod is bent, or the mounting parts are loose. Replace or repair the damaged parts and tighten the loose parts.

• Insufficient Power

  The hydraulic oil pressure is insufficient, or the sealing member is excessively worn. Increase the hydraulic oil pressure or replace the sealing member.

It is important to diagnose and resolve issues in a timely manner to prevent further damage to the arm cylinder and machinery. Regular inspections and maintenance can help prevent potential issues.

About Us

We are a professional manufacturer of replacement hydraulic cylinders with a wide range of products, and have become one of the leading hydraulic cylinder manufacturers and wholesale distributors in the domestic and international markets. We always uphold the principle of excellence, relying on the industrialized production management strategy of the refined manufacturing workshop, and continuously improve our technical level and production efficiency. By introducing high-end digital manufacturing equipment and professional testing systems, we optimize the manufacturing platform, improve the product quality control process, and have strong innovative capabilities. Our goal is to meet the diverse needs of customers with the principles of efficiency, accuracy, and high quality.

• Professionalism

  We have a team of experienced engineers and technicians who can provide professional solutions and technical support to customers.

• International Certification

  Our products have passed international certifications such as ISO9001, CE, and SGS, which guarantee the quality and safety of our products.

• Customization Services

  We can provide customized services according to customer requirements, such as size, material, and surface treatment.

• Production Equipment

  We have advanced production equipment such as CNC lathes, machining centers, and testing equipment, which ensure the accuracy and efficiency of our products.

• After-sales Service

  We provide comprehensive after-sales service, such as technical consultation, product maintenance, and replacement.

We have a strong reputation in the industry and are committed to providing high-quality and reliable products and services to our customers.

Author: lyl.