Product description:

Hydraulic cylinders are actuators that convert hydraulic energy into linear mechanical force. They have a compact structure, high output force, and smooth operation. They are the core components for performing actions such as pushing, pulling, lifting, and pressing in various mechanical and industrial systems, and are widely used in construction machinery, metallurgy, mining, shipping, and other fields.

A bucket cylinder is a key hydraulic component used in excavators, loaders, cranes, and other construction or mining machinery. It plays a crucial role in powering the bucket’s movement, allowing the equipment to perform digging, lifting, and loading operations efficiently. Designed to handle extreme working pressures and dynamic loads, the bucket cylinder directly affects the machine’s performance, durability, and safety.

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Structure and Working Principle

A bucket cylinder consists mainly of a cylinder barrel, piston rod, piston, seals, and end caps. When hydraulic oil is supplied into the cylinder under pressure, it pushes the piston to move linearly, converting hydraulic energy into mechanical force. This motion drives the bucket to rotate or tilt, achieving precise control for digging and material handling tasks. The design ensures smooth operation, excellent sealing, and long service life under heavy-duty conditions.

Materials and Manufacturing

High-strength alloy steel is commonly used for manufacturing bucket cylinders. The cylinder barrel is precision honed to ensure a smooth internal surface that minimizes wear on seals. The piston rod is typically hard chrome plated or nickel-chrome coated to resist corrosion and abrasion. Advanced CNC machining, heat treatment, and surface finishing technologies guarantee tight dimensional tolerances and reliable mechanical performance. Some manufacturers also apply induction hardening or QPQ surface treatment for enhanced fatigue strength and longer lifespan.

Features and Advantages

High Working Pressure: Designed to withstand pressures up to 35 MPa or more, ensuring strong output force and efficiency.

Excellent Sealing Performance: Equipped with imported or high-quality sealing systems (such as NOK, Hallite, or Parker) to prevent oil leakage and contamination.

Durable and Reliable: Precision machining and superior materials ensure consistent performance even in harsh environments.

Customizable Design: Available in various bore sizes, stroke lengths, mounting types, and connection methods to fit different equipment models.

Easy Maintenance: Simple structure and replaceable components make inspection and repair convenient.

Working principle of hydraulic cylinder:

Applications:

The hydraulic cylinder is an energy conversion device that converts hydraulic energy into mechanical energy. It is the core executive component in the hydraulic system. The hydraulic cylinder uses hydraulic oil to drive the piston to move, converting hydraulic energy into linear reciprocating motion. When the hydraulic oil enters the cylinder barrel, it pushes the piston rod to extend or retract, completing the predetermined action. The direction and speed of its movement are regulated by the hydraulic control system. The hydraulic cylinder consists of a cylinder barrel, cylinder cover, piston and piston rod, sealing device, and buffering device. According to its structure, it can be classified as piston type, plunger type, multi-stage telescopic sleeve type, and gear rack type. Hydraulic cylinders are widely used in machine tools, construction machinery, vehicles, and other fields, featuring a simple structure and smooth movement.

Bucket cylinders are primarily installed in:

Hydraulic excavators and backhoes for bucket digging and loading movement.

Wheel loaders and skid-steer loaders for material handling and earthmoving.

Cranes and forestry machinery for clamping, lifting, or gripping actions.

Mining and agricultural equipment requiring robust hydraulic actuation.

In each of these applications, the bucket cylinder ensures smooth, stable, and precise motion control, significantly improving productivity and operator safety.

Quality Control and Testing

Manufacturers perform rigorous quality control during each stage of production. Tests typically include:

Hydraulic pressure and leakage testing

Dimensional accuracy and surface roughness inspection

Coating adhesion and corrosion resistance tests

Fatigue and endurance testing under load

Only cylinders that pass these strict evaluations are delivered to customers, guaranteeing reliability in continuous heavy-duty use.

Company profile:

Since its establishment in 2014, Wuxi Hengxin Zhicheng Co., Ltd. has rapidly grown into a leading enterprise in the steel manufacturing industry. We focus on the research, production and sales of seamless steel pipes, special-shaped steel pipes and hydraulic cylinders, and are committed to providing customers with high-quality, customizable products that fully meet diverse application needs.

Our products are exported to global markets such as the Middle East, South America, Africa, and Southeast Asia, and are highly trusted by large purchasers and customers in the steel industry. We always prioritize quality, reliability and customer service, and attach great importance to establishing long-term and stable cooperative relationships with customers. We provide each customer with tailor-made solutions.

We continuously promote technological innovation and improve service capabilities and production efficiency. Through an efficient online platform, you can browse our best-selling products at any time and communicate with the sales and support teams in real time to conveniently obtain the information you need. We sincerely invite partners from all countries to visit, exchange and provide guidance, and jointly explore more possible cooperation opportunities!

Certification:

Packaging and Transportation:

【Package standard】

We use steel bands to tightly package the products into hexagonal bundles. The structure is stable and not prone to deformation. Each bundle is equipped with two high-strength nylon straps to ensure the safety and convenience of the lifting operation.

To meet various maritime transportation needs, we offer a range of customized packaging options, including full coverage with oilcloth, moisture-proof wooden boxes, and high-strength protective frame packaging, to ensure the maximum safety of goods during transportation.

【Guarantee for transportation】

We offer 20-foot and 40-foot standard container transportation services. Each container can carry up to 25 tons of goods and we can accept trial orders with a minimum of 5 tons. This allows for flexible adaptation to your purchasing scale. All packaging complies with maritime shipping standards to ensure that the goods are delivered to the destination efficiently and safely.

Why us?

We focus on the research, development, production and sales of seamless steel pipes, special-shaped steel pipes and hydraulic cylinders. We have a complete production chain and an advanced equipment system, including piercing machines, cold drawing machines, hot rolling machines, high-precision flaw detection and testing equipment. The company has passed multiple authoritative certifications such as ISO9001, API, SGS, CCS, DNV, ABS, CE, RoHS, etc., ensuring that each product complies with international standards. We are committed to providing customers with high-quality, customizable solutions to meet diverse application needs.

Relying on our own built processing base and modern workshops, combined with multiple branches and storage centers across the country, we have achieved sufficient inventory and efficient logistics coordination, significantly shortening the delivery cycle and ensuring the rapid delivery of orders.

We have established a complete service and support system. After the order is signed, the professional after-sales team can provide timely and safe on-site guidance and technical support to ensure that customers are at ease throughout the process from procurement to use.

FAQ：

1. Do you support customized design and production?

Sure. We have a professional engineering team that can conduct customized design and production with special sizes, control systems or OEM according to your requirements.

2. How fast can you deliver?

In stock sizes, it takes 3-5 days. For customized sizes, it takes 30-35 days.

3. What payment methods do you support?

We support TT payment. Generally, 30% to 50% of the payment is made in advance, and the remaining amount is paid before shipment.

4. Can you provide material certification (MTC)?

Yes, we will provide MTC to you after production is completed to ensure that the material quality meets the standards.

5. What is the minimum order quantity?

Generally, we accept trial orders. The minimum order quantity is 1-3 tons, which can be determined according to different products.