MGPL TCL Three Rods Cylinders

The three bar cylinder belongs to the high rigidity guiding cylinder, designed specifically to solve the following pain points:

Insufficient lateral force resistance: Traditional single rod cylinders are prone to deflection when subjected to lateral forces, while the three rod structure forms stable support through guide rods on both sides, increasing lateral force resistance by more than twice.
Low space utilization: Integrated driving and guiding functions are integrated, without the need for additional mechanical structures, saving equipment space by more than 30%.
Poor dynamic stability: The triangular support layout eliminates motion tremors and is suitable for high-speed (≥ 500mm/s) and high-frequency (≥ 5 times/minute) working conditions.

• Typical application scenarios:

Scenarios that require high rigidity, torque resistance, and micrometer level positioning include stamping die opening and closing, arc welding fixture positioning, automated sorting line blocking, and precision assembly table lifting.

1. Structural innovation: Three bar collaborative design

• Drive rod: The central piston rod provides linear power and supports bidirectional action (compressed air drive) or single action (spring reset).
• Guide rod: The high rigidity rods on both sides bear lateral force and torque, and achieve low friction sliding through linear bearings or copper sleeve bearings.
• Integrated cylinder body: Made of aluminum alloy material (optional stainless steel) that has undergone hard oxidation treatment, balancing lightweight and corrosion resistance.

2. Performance advantages

• Load resistance capability:

The lateral force bearing capacity is 200% higher than that of a single rod cylinder, making it suitable for scenarios with lateral forces ≥ 500N.

The maximum lifting load can reach several hundred kilograms depending on the cylinder diameter, and the theoretical value can be adjusted according to the actual working conditions.

• Guidance accuracy:

Motion deflection ≤ 0.1mm/100mm stroke, meeting the requirements of precision assembly.

The coaxiality error between the guide rod and the piston rod is ≤ 0.05mm, and there is no deformation during long-term operation.

• Environmental resistance:

Working temperature range: -20 ℃ to+80 ℃ (optional high temperature resistant seals can be extended to 120 ℃).

Protection level: IP65 (dustproof and waterproof), suitable for dust and oil mist environments.

3. Derivative function options

Buffer adjustment:

Adjustable Pneumatic Buffer (PPV): Control the exhaust speed through a throttle valve to absorb braking shock.

Hydraulic buffer: Built in hydraulic damping, suitable for heavy-duty (≥ 100kg) high-speed working conditions.

Anti corrosion design:

The surface of the cylinder body is nickel plated, and the guide rod is made of stainless steel material, suitable for the chemical and food industries.

Anti welding slag structure:

Install a protective cover on the protruding end of the piston rod to prevent welding spatter from adhering and extend its service life.

Case 1: Stamping die opening and closing

Pain point: Traditional single rod cylinders have excessive burrs on the product due to lateral force deflection during mold closure.

Solution:

Adopting a three bar cylinder, the guide rods on both sides bear the impact pressure, ensuring precise alignment of the mold and increasing the product qualification rate by 15%.

Case 2: Positioning of arc welding fixtures

Pain point: Welding spatter adheres to the piston rod, causing the cylinder to become stuck.

Solution:

Select anti welding slag structure cylinder, protective cover to isolate splashes, and extend maintenance cycle from once a week to once a month.

Case 3: Automated sorting line obstruction

Pain point: High frequency impact (10 times/minute) causes the cylinder life to be less than 6 months.

Solution:

Configure hydraulic buffer to absorb braking impact and extend its lifespan to over 2 years.

Compared to traditional single rod cylinders:
Advantages: Strong resistance to lateral forces, compact space; Disadvantage: The cost is 20% -30% higher.
 

Regarding the slide cylinder:
Advantages: 40% lower cost, higher guiding rigidity; Disadvantage: The positioning accuracy is slightly lower (± 0.1mm vs ± 0.05mm).
 

Regarding the electric slide table:
Advantages: Fast response time (millisecond level), maintenance free; Disadvantage: High control complexity.
Through the above structured analysis, users can quickly understand the technical essence of the three bar cylinder and complete the selection design based on the working condition requirements.

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