Product description:

A support oil cylinder, also known as a hydraulic support cylinder or outrigger cylinder, is a vital hydraulic component used to provide stable support and balance for heavy machinery during operation. It is widely applied in cranes, concrete pump trucks, drilling rigs, excavators, fire trucks, and engineering vehicles, where equipment stability and safety are essential.
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.

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Structure and Working Principle

A support oil cylinder typically consists of a cylinder barrel, piston, piston rod, sealing system, guide bush, and mounting interfaces. When hydraulic oil is pumped into the cylinder, pressure acts on the piston to extend the piston rod, pushing down the support leg or outrigger to contact the ground. This action stabilizes the machine by transferring part of the load to the ground and reducing structural stress on the chassis.

When the operation is completed, hydraulic pressure is released, and the piston retracts, allowing the support legs to return to their storage position. The design ensures smooth movement, reliable locking, and precise control under all working conditions.

Material and Manufacturing Process

The cylinder barrel is made from high-strength alloy steel or precision seamless cold-drawn tubes, which are honed internally for smooth motion and excellent sealing performance. The piston rod is hard chrome plated or QPQ treated for outstanding wear resistance, corrosion protection, and extended service life.

Advanced CNC machining, robotic welding, automatic grinding, and strict heat treatment processes are used to guarantee high dimensional accuracy and superior structural strength. Each support oil cylinder is assembled under strict quality control to ensure safe, reliable operation in demanding environments such as construction sites, mines, and offshore platforms.

Key Features and Advantages

• High Load Capacity: Designed to bear heavy loads and provide firm support for large machinery.
• Stable and Reliable Performance: Ensures equipment remains balanced even on uneven ground.
• Superior Sealing System: Equipped with premium seals from brands such as NOK, Parker, or Hallite for zero leakage and long-lasting reliability.
• Strong and Durable Construction: Made from high-quality alloy materials for excellent resistance to wear, corrosion, and impact.
• Smooth Operation: Precision-machined surfaces and advanced hydraulic design ensure smooth extension and retraction.
• Customizable Design: Available in single-acting or double-acting configurations, with various bore sizes, strokes, and mounting styles.
• Easy Maintenance: Simple structure with replaceable seals and wear parts, allowing for quick inspection and servicing.

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.

The support oil cylinder is widely used in industries that require stable positioning, lifting, or balancing of heavy equipment. Typical applications include:

• Truck-mounted cranes – for extending and supporting outriggers during lifting operations.
• Concrete pump trucks – to stabilize the chassis while pumping concrete.
• Firefighting and rescue vehicles – for leveling and securing equipment during emergency response.
• Drilling rigs and mobile cranes – for ground stabilization during drilling or hoisting.
• Excavators and loaders – for auxiliary support during loading and digging operations.
• Agricultural and forestry machinery – for stabilizing attachments and heavy loads.
• In all these scenarios, the support oil cylinder ensures safety, accuracy, and performance stability, allowing operators to perform complex tasks with confidence.

Quality Control and Testing

• Every cylinder undergoes strict inspection and hydraulic testing before delivery. Quality assurance includes:
• Pressure and leakage testing under rated loads
• Dimensional accuracy verification
• Coating adhesion and corrosion resistance testing
• Fatigue and endurance testing for long-term reliability
• All products comply with ISO, DIN, and CE standards, guaranteeing consistent performance and safety in demanding industrial environments.

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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.