더블 로드 실린더

STM 시리즈 듀얼 로드 공압 슬라이드(슬라이드 베어링)

견고하고 정밀한 Double Rod Cylinders

Discover the enhanced stability and non-rotating precision of our double rod cylinders. Designed for applications requiring balanced force output and resistance to side loads, these cylinders offer superior performance and reliability for your demanding automation tasks.

Key Advantages of Our Double Rod Cylinders

Balanced Force Output

With piston rods extending from both ends, these cylinders provide equal force and speed in both directions of travel, ideal for push-pull applications.

Non-Rotating Precision

The dual rod design inherently prevents piston rod rotation, ensuring accurate alignment and positioning for tasks requiring non-rotational movement.

Enhanced Load Stability

Offers increased resistance to side loads and bending moments compared to single rod cylinders, leading to greater stability and longer service life.

이해 더블 로드 실린더 Construction

Engineered for Balance and Strength

Double rod cylinders feature a single piston with two piston rods extending in opposite directions from the cylinder body. This design provides inherent stability and allows for work to be performed at both ends simultaneously or alternately.

Symmetrical Design: Ensures balanced forces and smooth, even movement.
Robust Construction: Built with high-quality materials for durability in demanding industrial environments.
Versatile Mounting: Multiple mounting options available to suit various installation requirements.
Sealing System: Advanced seals for reliable, leak-free operation and extended lifespan.
Cushioning Options: Available with adjustable air cushioning to absorb shock at the end of stroke.

우리의 Double Rod Cylinder Technical Edge

Precision Machined Rods

High-tensile strength piston rods with hard chrome plating for superior wear resistance and smooth operation.

Long-Life Sealing

Utilizing advanced sealing materials and design to minimize friction, prevent leakage, and ensure extended operational life.

Integrated Guiding (Optional)

Some series offer integrated guide bushings or options for external guides to further enhance stability against side loads and moments.

Customization Options

We offer customization for stroke length, mounting styles, and materials to meet specific application requirements.

선택 시 주요 매개변수 Double Rod Cylinders

보어 크기

Determines the cylinder’s output force.

스트로크 길이

The travel distance of the piston rods.

작동 압력

The range of air pressure the cylinder is designed for.

마운팅 스타일

Various options like basic, foot, flange, clevis.

Rod End Configuration

Thread type and dimensions for load attachment.

쿠션

Adjustable air cushioning or fixed bumpers.

Non-Rotation Accuracy

The degree to which rod rotation is prevented.

마그네틱 피스톤 옵션

For use with position sensors (magnetic switches).

자세한 매개변수는 개별 제품 설명서 또는 기술 전문가와 상담하세요.

일반적인 애플리케이션 Double Rod Cylinders

Pick and Place Units

Providing stable, non-rotating linear motion for robotic arms and material handling systems.

Conveyor Systems

Used for diverting, stopping, or positioning items on conveyor belts with enhanced stability.

Clamping Fixtures

Offering balanced clamping force from two sides, ideal for securing workpieces during machining or assembly.

Door and Gate Actuation

Providing smooth and controlled motion for opening and closing automated doors, gates, or hatches.

Labeling and Printing Machines

Ensuring precise, non-rotating movement for applicator heads or print heads.

Synchronized Motion Systems

Where two points need to be actuated simultaneously with balanced force, e.g., lifting platforms.

더블 로드 실린더 설치 및 유지 관리

설치 팁:

Ensure the mounting surface is rigid and flat to prevent cylinder body distortion.
Align the cylinder axis carefully with the direction of the load movement to avoid side loading on the piston rods.
Use appropriate fittings and ensure air lines are clean before connection to prevent contaminants from entering.
If connecting loads to both rod ends, ensure proper alignment and synchronization if required by the application.
Adjust cushioning screws (if applicable) to achieve smooth deceleration at the end of strokes.

정기 유지 관리:

Regularly inspect for air leaks around seals and fittings.
Maintain a clean and properly lubricated air supply (if required by the cylinder model).
Check piston rods for any signs of scoring, corrosion, or damage. Keep them clean.
Ensure mounting bolts remain tight and secure.
Listen for any unusual noises during operation, which might indicate internal wear or issues.

Adhering to proper installation and maintenance practices will maximize the performance and lifespan of your double rod cylinders.

더블 로드 실린더 자주 묻는 질문

When should I choose a double rod cylinder over a single rod cylinder?

Choose a double rod cylinder when your application requires one or more of the following:

Non-Rotating Movement: The dual rods inherently prevent the piston from rotating, which is crucial for tasks like precise positioning or when the attached tooling must maintain a specific orientation.
Balanced Force/Speed: Since the piston area is nearly identical for extension and retraction (only differing by the rod area if one rod is smaller, which is uncommon), they provide more balanced force and speed in both directions.
Increased Stability Against Side Loads: The two rods provide better support and can handle higher side loads or bending moments compared to a single rod cylinder of similar bore size.
Work at Both Ends: You can attach loads or perform work at both ends of the cylinder simultaneously or independently.
Through-Rod Application: The rod passing completely through the cylinder can be used for sensing or mechanical linkages.

Do double rod cylinders offer twice the force of a single rod cylinder?

Not exactly. A double rod cylinder has a single piston. The force output is determined by the air pressure acting on the area of this piston.

Extension Force: Pressure acts on the full piston area minus the area of one rod (if pressure is applied to the end cap where one rod exits).
Retraction Force: Pressure acts on the full piston area minus the area of the other rod.

Since both rods are typically the same diameter, the effective area for extension and retraction is very similar, leading to balanced forces. However, it doesn’t provide “twice the force” of a single rod cylinder of the same bore size. The primary benefit is not doubled force, but rather balanced force, non-rotation, and improved stability.

How is the stroke length defined for a double rod cylinder?

The stroke length for a double rod cylinder is defined as the total distance the piston travels from one extreme end position to the other. This means it’s the distance one rod end moves relative to the cylinder body when the piston moves fully from one end cap to the other.
It’s important to note that because there are rods extending from both ends, the overall length of the cylinder assembly (body + fully extended rods) will be greater than a single rod cylinder with the same stroke. However, the “working envelope” or the space required for the moving parts might be different depending on how the load is attached and where the cylinder body is fixed.

Are there special considerations for controlling double rod cylinders?

Controlling double rod cylinders is generally similar to controlling standard double-acting single rod cylinders. You would typically use a 5-port, 2-position (5/2) or 5-port, 3-position (5/3) directional control valve.

Key considerations include:

Valve Sizing: Ensure the valve’s flow capacity (Cv value) is adequate for the cylinder’s bore size and desired speed.
Speed Control: Flow control valves (speed controllers) can be installed on the exhaust ports to regulate the speed of extension and retraction independently.
쿠션: Utilize the cylinder’s built-in cushioning or add external shock absorbers if high speeds or heavy loads are involved.
Synchronization (if applicable): If using the cylinder to move two separate loads that need to be synchronized, careful mechanical design and potentially more complex control logic might be required.

Can I get a double rod cylinder with different rod diameters or extensions on each side?

Standard double rod cylinders typically feature piston rods of the same diameter and equal extension from the center of the piston to achieve balanced performance. This is the most common configuration.

However, for specific applications, customized versions might be possible, though less common:

Different Rod Diameters: This would result in different effective piston areas for extension and retraction on each side, leading to unequal forces. This is rarely done unless a specific differential force is required.
Unequal Rod Extensions (at rest): It might be possible to customize the “at rest” or fully retracted/extended position of one rod relative to the other, but this would depend on the internal construction and specific manufacturer capabilities.

If you have such a unique requirement, it’s best to discuss it with our engineering team. We can explore the feasibility and potential design implications for a custom solution.

Achieve Balanced Power and Precision with Our Double Rod Cylinders

Our double rod cylinders deliver enhanced stability, non-rotating accuracy, and versatile performance for your automation challenges. Explore our range or connect with our pneumatic specialists for expert advice and tailored solutions.

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