When designing a machine or an industrial system, protecting ball screws, linear guides, cylinders, or moving parts is essential to ensure their longevity. While choosing the right protective bellows (flat or cylindrical) is crucial, its mechanical integration and mounting interface are just as decisive.
For successful integration, the mounting interface must address three major constraints: adapting to your system, sealing / Leak tightness, ease of assembly and disassembly.
📌 Key Takeaways:
- Hose clamps are the universal standard solution (IP54). Ideal for quick assembly and disassembly without complex tooling.
- 3D flanges offer complete custom adaptability (IP64). Perfect for complex geometries or prototypes.
- Welded PP flanges (internal/external) are the premium solution. They provide maximum sealing (IP69K), extreme compactness, and allow for an integrated bearing in rotating applications.
1. Welded PP Flange (Internal or External): IP69K Performance and Sealing
Designed for the most demanding industrial environments (food processing, cleanrooms, and high-pressure washdown areas), the polymer flange welded directly to the bellows serves as a benchmark solution.
Technical Advantages of Internal and External Flanges:
- Maximum Sealing (IP69K): The flange is welded directly onto the bellows, preventing any ingress of dust, fluids, or high-pressure water.
- Compact Interfaces: Fits closely around your existing components to minimize footprint and optimize mechanical integration.
- Integrated Bearing Option: One of Eclore Actuators' major strengths. If your system involves rotary motion, we can integrate a bearing directly into the flange to accommodate your application's rotational movement.
2. Hose Clamp: Simple Installation and IP54 Protection
The hose clamp is the classic interface par excellence. The bellows is held in position between your component and the clamp, ensuring reliable support and straightforward attachment.
Technical Advantages of Hose Clamps:
- Competitive Cost: This is the most economical solution.
- Easy Assembly/Disassembly: No special tools required. Ideal for quick on-site maintenance operations.
- IP54 Ingress Protection: More than sufficient to protect against dust and light water splashes (standard industrial environments, excluding high-pressure washdowns).
3. 3D Mounting: Maximum Adaptability
3D printing is revolutionizing the integration of protective bellows. It enables the manufacture of a custom flange or plate shaped to perfectly match the complex geometry of your machine.
The 3D flange adapts to your specific constraints and allows you to easily integrate your protective bellows, even in complex mechanical setups.
Technical Advantages of 3D Mounting:
- Customization: If your mounting area is neither perfectly round nor flat, the 3D flange adapts to your CAD constraints without tooling surcharges.
- IP64 Ingress Protection: Offers an excellent barrier against dust and multidirectional water splashes.
Point of Attention: While highly flexible, this solution is generally less durable when exposed to severe chemical or thermal stress, and its sealing remains inferior to traditionally machined or welded flanges.
Mounting Solutions Comparison Table
| Welded PP Flange | Hose Clamp | 3D Mounting | |
| Ingress Protection |
IP69K | IP54 | IP64 |
| Cost | Medium to High |
Low | Medium |
| Adaptability |
Excellent (Custom) |
Standard |
Excellent |
| Rotation Option |
Yes (Integrated bearing) |
No | No |
| Durability |
Excellent |
Very Good |
Very Good |
Want to learn more? Discover all our protective bellows mounting solutions.
FAQ: Frequently Asked Questions About Bellows Mounting
Can a protective bellows be used on a rotating system?
Yes, but not with a standard rigid interface, which would destroy the bellows through torsional stress. You must opt for a flange with an integrated bearing option. The bearing allows the bellows to remain stationary or follow translational movement without enduring the shaft's rotational torque.
Are your custom bellows delivered with their mounting interfaces?
Yes. At Eclore Actuators, we design the polymer bellows and its mounting interface (flange, clamp, 3D part) as a single, ready-to-install sub-assembly for your line or machine.
Unsure about which bellows or mounting type to choose? Our experts are here to help. Contact us today!
