F Series: Double Convolution
The TEVEMA F Series Air Springs with a double convolution design are high-performance pneumatic actuators engineered for applications requiring superior vibration isolation, load support, and precise motion control.
Manufactured with high-quality elastomers and reinforced materials, these air springs provide exceptional flexibility, durability, and damping characteristics, making them ideal for demanding industrial and vehicular applications.
The double convolution structure allows for greater stroke capacity and adaptability, ensuring smooth operation in environments where shock absorption and load balancing are critical.
- Double Convolution Design: Provides increased stroke length and flexibility compared to single convolution models, allowing for greater movement and improved alignment adaptability.
- High Load Capacity: Designed to support and lift heavy machinery and equipment efficiently.
- Superior Vibration Isolation: Effectively minimizes vibrations and shocks, enhancing equipment longevity and operational efficiency. Oria air bellows offer more than 99% isolation from unwanted vibrations.
- Durable Construction: Manufactured using high-quality rubber compounds reinforced with fabric plies and steel bead rings, ensuring durability in demanding industrial environments.
- Maintenance-Free Operation: Engineered for long-term reliability with minimal maintenance requirements, reducing operational costs compared to conventional cylinders.
- Versatile Applications: Available in various sizes, configurations, and elastomer options to meet specific industrial application needs, including pneumatic actuation, vibration isolation, and load support.
The F Series Double Convolution Models have been specifically designed to meet the demanding requirements of heavy-duty industrial applications, offering both high load-bearing capacity and exceptional vibration damping. The double convolution design allows for enhanced axial and angular flexibility, making these air springs particularly effective in applications where movement and misalignment are common.
- Automotive Manufacturing: Used in assembly lines, stamping presses, and testing equipment, where precise motion control and vibration isolation are critical.
- Mining and Quarrying: Applied in heavy machinery such as crushers and vibrating screens, helping to reduce shock and extend equipment lifespan.
- Industrial Machinery: Ideal for presses, conveyors, and vibrating tables, enhancing performance and reducing maintenance costs.
- Maritime and Offshore: Used in equipment exposed to dynamic loads and movement, ensuring stability and support in harsh environmen
- Aerospace Testing Facilities: Employed in vibration isolation platforms and testing rigs, requiring precise control and damping characteristics.
When comparing TEVEMA’s F Series and D Series Double Convolution Air Springs, several technical specifications differentiate the two, making each series optimal for specific industrial applications. Below is a detailed technical comparison:
- F Series: Designed for higher maximum loads, making it suitable for heavy-duty applications.
- D Series: Suitable for moderate loads, ideal for standard industrial use.
- F Series: Operates up to 8 bar (higher-pressure variants with four-ply construction can handle up to 12 bar).
- D Series: Operates up to 6 bar.
- F Series: Larger diameters, up to 950 mm, allowing for greater force distribution.
- D Series: Smaller diameters, up to 580 mm, suitable for compact applications.
- F Series: Allows for longer stroke lengths, enhancing flexibility in industrial applications.
- D Series: Shorter stroke lengths, sufficient for moderate vertical movement.
- F Series: Lower natural frequencies (1.4–3 Hz), providing superior vibration isolation.
- D Series: Higher natural frequencies (1.5–4.6 Hz), suitable for less sensitive applications.
- F Series: Uses high-strength rubber compounds with multiple reinforcement layers, such as nylon or fabric plies, improving durability.
- D Series: Constructed with standard rubber compounds and fewer reinforcement layers.
- F Series: Available with bead ring closures (dismountable with threaded or countersunk fasteners) and crimped closures (non-dismountable), often with anti-corrosive coatings.
- D Series: Features a dismountable design with two clamping bead rings and mounting plates.
- F Series: Wider temperature range, up to +115°C when using EPDM rubber.
- D Series: Standard temperature range, up to +70°C (natural rubber).
- F Series: Accommodates angular misalignments up to 25°, making it more adaptable to lateral movements.
- D Series: Designed for limited misalignment tolerance.
- F Series: Higher burst pressure ratings, exceeding 25 bar, ensuring greater safety margins.
- D Series: Standard burst pressure ratings around 18 bar.
- F Series: Suitable for high-frequency dynamic applications, offering excellent damping characteristics and extended fatigue life.
- D Series: Primarily designed for static or low-frequency dynamic applications.
- F Series: Extended fatigue life, exceeding 1 million cycles, making it ideal for high-duty applications.
- D Series: Reliable for up to 500,000 cycles, sufficient for standard industrial applications.
| Specification | F Series Double Convolution | D Series Double Convolution |
|---|---|---|
|
Maximum load capacity: |
Up to 380 kN (~38.7 tons) |
Up to 450 kN (~45.9 tons) |
|
Operating pressure range: |
Up to 12 bar (174 psi) (with high-strength version) |
Up to 8 bar (116 psi) |
|
Effective diameter: |
150 mm – 600 mm |
80 mm – 400 mm |
|
Maximum stroke length: |
Up to 300 mm |
Up to 200 mm |
|
Natural frequency: |
1.2 – 3.0 Hz |
1.5 – 5.0 Hz |
|
Temperature range: |
-40°C to +70°C (-40°F to +158°F) |
-25°C to +110°C (-13°F to +230°F) |
|
Material composition: |
High-Strength Reinforced Rubber (Natural, Nitrile, EPDM, or Chlorobutyl options) |
Standard Rubber (Natural or Nitrile options) |
|
End Closure Material: |
Electro-Galvanized or Stainless Steel (AISI-304, optional AISI-316L) |
Steel (Electro-Galvanized or Stainless Steel available) |
|
Burst Pressure: |
Up to 12 bar standard, higher on request |
Up to 8 bar standard, higher on request |
|
Misalignment capability: |
Up to 12 degrees angular |
Up to 6 degrees angular |
|
Fatigue life: |
>1 million cycles |
Up to 500,000 cycles |
|
Dynamic applications: |
Highly suitable |
Moderately suitable |
Higher Load and Pressure Handling:
- The F Series double convolution models support heavier loads and operate at higher pressures due to their reinforced construction and high-performance materials.
- The D Series is designed for standard load capacities and operating pressures, making it suitable for general industrial applications.
Enhanced Vibration Isolation:
- The F Series has lower natural frequencies, leading to superior vibration isolation, which is critical for protecting sensitive equipment and improving operator comfort in heavy machinery.
- The D Series provides effective vibration isolation for common industrial applications, covering standard frequency ranges.
Greater Flexibility and Stroke Length:
- The F Series accommodates larger movements and misalignments, making it ideal for applications with significant structural shifts or load-induced displacements, all while maintaining a compact design.
- The D Series provides sufficient flexibility for applications with moderate vertical movement and limited misalignment.
Material and Construction:
- The F Series incorporates advanced elastomers and additional reinforcement layers, offering higher durability, increased burst pressure resistance, and extended fatigue life.
- The D Series is built with standard materials and conventional construction techniques, making it suitable for less demanding environments.
Temperature Resilience:
- The F Series can withstand more extreme temperatures, expanding its use in harsh environmental conditions.
- The D Series functions well within standard industrial temperature ranges.
Dynamic Performance:
- The F Series features enhanced damping characteristics, making it ideal for applications with rapid load changes and high-frequency vibrations.
- The D Series is best suited for static or low-frequency dynamic applications.
Application Suitability:
- Due to these technical advantages, the F Series is better suited for heavy-duty, high-performance applications in industries such as mining, construction, automotive manufacturing, and heavy machinery.
- The D Series remains an excellent choice for general industrial applications, including standard manufacturing equipment and conveyor systems.
By focusing on these technical specifications, engineers and equipment designers can select the appropriate air spring model that precisely meets the demands of their application, ensuring optimal performance, safety, and longevity. The F Series Double Convolution Models provide superior capabilities for high-demand environments, while the D Series Double Convolution Models offer reliable performance for standard applications.
Note: The technical specifications provided are based on typical values for TEVEMA’s F Series and D Series Double Convolution Air Springs. For precise specifications and to select the ideal model for your specific application, please refer to TEVEMA’s official product catalogs or consult their technical support team.
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Discover how TEVEMA’s F Series Air Springs Double Convolution Models can enhance your operations. Contact our expert team today—we are committed to providing customized solutions tailored to the unique demands of your industry. Let us help you optimize performance, reduce maintenance costs, and achieve superior vibration isolation with our advanced air spring technology.