Amplitude Variation Cylinder
Product description:

The Amplitude variation cylinder, also known as a hydraulic amplitude adjustment cylinder or amplitude control cylinder, is a specialized hydraulic actuator designed to control the amplitude or range of motion in construction machinery, cranes, concrete pumps, and other heavy equipment. It plays a crucial role in adjusting the boom angle, oscillation, and vibration amplitude of mechanical systems, ensuring smooth, stable, and precise movement under varying loads and working conditions.

By changing the amplitude of the equipment’s working parts, the amplitude variation cylinder enhances performance efficiency, ensures precise operation, and improves overall machine stability and safety.

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

The hydraulic amplitude variation cylinder operates based on hydraulic pressure acting on a piston to generate linear motion. This motion adjusts the mechanical linkage or support arm’s angle, thereby changing the amplitude or oscillation range of the equipment.

A standard amplitude variation cylinder consists of:

• Cylinder barrel: High-strength Precision steel tube with honed surface for optimal sealing.
• Piston and piston rod: Converts hydraulic energy into linear motion with minimal friction.
• End caps and seals: Maintain internal pressure and prevent hydraulic oil leakage.
• Mounting points: Connect to mechanical frames, booms, or amplitude control systems.
• This cylinder works as a double-acting hydraulic actuator, providing equal pushing and pulling force in both directions. It ensures stable operation even in heavy-duty environments like construction sites, mining fields, or high-vibration systems.

Materials and Manufacturing Process

The amplitude variation cylinder body is manufactured using high-strength alloy steel or seamless precision steel tubing, ensuring excellent mechanical strength and fatigue resistance. The piston rod is hard chrome plated or QPQ nitrided for superior surface hardness, corrosion protection, and long-lasting performance.

All components are precisely machined using CNC equipment, followed by automatic welding, heat treatment, and surface polishing to ensure dimensional accuracy and smooth operation.

The sealing system adopts premium materials from well-known brands like Parker, Hallite, and NOK, providing reliable performance under high pressure and temperature variations.

Every amplitude variation cylinder is produced under strict ISO, DIN, and CE standards to guarantee global quality compliance.

Key Features and Advantages

• Accurate Amplitude Control: Allows smooth and precise adjustment of boom amplitude and oscillation.
• High Pressure Resistance: Engineered for working pressures up to 35 MPa for heavy-duty equipment.
• Durable Construction: Made from premium alloy materials for maximum strength and fatigue life.
• Superior Sealing System: Ensures zero internal leakage and long-term reliability.
• Customizable Design: Available in various bore sizes, strokes, and mounting options.
• Corrosion and Impact Resistance: Surface treatments ensure durability in outdoor or harsh environments.
• Low Maintenance: Simplified structure with easily replaceable seals reduces downtime.
• High Efficiency: Stable hydraulic response ensures smooth and consistent amplitude variation.

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 Amplitude Variation Hydraulic Cylinder is widely used in:

• Concrete pumps and placing booms: For controlling arm amplitude and distribution range.
• Cranes and lifting machinery: To adjust boom swing and amplitude for precise lifting operations.
• Construction and mining equipment: For controlling vibration or motion amplitude of working arms.
• Marine and offshore equipment: To maintain balance and adjust oscillation during operation.
• Drilling and piling machinery: For controlling amplitude of vibration and motion in foundation work.
• Agricultural and forestry machinery: For regulating amplitude and angle of implements or arms.
• Its adaptability, stability, and precise control make it a vital component in any system requiring motion amplitude regulation.

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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Certification:

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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.