Bellows covers
Bellows covers
We supply a wide range of bellows covers. Our bellows are divided into four categories:
- Rectangular bellows
- Polygonal bellows
- Homogeneous bellows
- Telescopic bellows
More information regarding different bellows models and the solutions best suited to your needs is available in the type-specific sections on this page.
Rectangular bellows
Benefits
- Improved occupational safety
- Moving parts are protected
- Improves the appearance of both the machine and the working environment
Structure
Each pleat can be equipped with a PVC frame, which guarantees the stability of the shape and the dimensions. The protective cover and the PVC frame are either welded or sewn together. A welded seam is permanently tight and provides oil-resistant protection, while a sewn seam is suitable for heavy mechanical duress. The conductor and the outer frames are manufactured to the customer’s dimensions and requirements.
| Type | Materials |
|---|---|
| 002 |
Woven polyester fabric coated with polyurethane on both sides Thickness 0.20 or 0.40 mm Trickle-resistant Oil- and emulsion-resistant |
| 0016 |
Specially woven fabric gummed on both sides Flame-proof Excellent resistance to oil, fuel and chemicals Specially designed for use with lasers |
Polygonal bellows
Benefits
- Good shape stability even with large dimensions
- Available in a variety of materials
- Divided version available on request
- Fully sealed (with the exception of long extensions and high speeds, in which case use of additional valve openings is recommended)
Structure
Polygonal bellows are available in hexagonal (Figure 1), octagonal (Figure 2), dodecagonal etc. versions. Alternately facing pleats provide excellent stability in large dimensions. These bellows guards are multi-layer laminated, which means that the woven textile fabric is glued to the inner material, thus guaranteeing stability and strength in large dimensions. These layers are further attached to a special outer material.
| Type | Materials |
|---|---|
| Polytex | Polyurethane coated polyester fibre |
| Putex | Silicone elastomer coated polyamide fibre |
| 8 | Cotton fibre, plastic coating |
| 10 | Cotton fibre, graphite coating |
| 11 | Cotton fibre, aluminium coating |
| 11 A | Fibreglass fabric coated with aluminium on one side |
| Other materials on request |
Homogeneous bellows
Benefits
- Single layer material
- Easy to move
- Retains shape
- State-of-the-art design
- High drive speeds
- Protective covers for guideways
Structure
Each pleat is equipped with a shape-retaining PVC frame. The protective cover and the PVC frame are either sewn or welded together. Welded seams are tight and oil-resistant, while sewn seams withstand heavy mechanical duress.
- 1 – Outer frame
- 2 – Protective cover
- 3 – PVC frame
Additional Information
The shape of the cover is designed to meet the customer’s specific needs. Our technical support team will identify the best possible form to meet your requirements. Upon request, we can also install additional rollers and sound-absorbing strips.
| Type | Materials |
|---|---|
| 002 |
Woven polyester fabric coated with polyurethane on both sides Thickness 0.20 or 0.40 mm Trickle-resistant Oil- and emulsion-resistant |
| 0016 |
Specially woven fabric gummed on both sides Flame-proof Excellent resistance to oil, fuel and chemicals Specially designed for use with lasers |
Mounting methods
The mounting method and the shape of the outer steel or PVC frame are selected in conjunction with the initial order, based on the customer’s drawing (Figures 1–3) or with the help of an adhesive tape tested by us (Figure 4).
The benefits of self-adhesive mounting
- Quick to install on the machine
- Secure attachment from -30 °C to +90 °C
- Tensile strength 2.94 N / cm²
- Firm grip even after 10,000 uses
- When using large amounts of oil or emulsion, the adhesive tape can be sewn to the frame, which is then screwed onto the machine.
Flexible telescopic bellows
Benefits
- Articulated or interconnected support for telescopic plates
- Guaranteed protection for even a large amount of chips
- No glued joints
- Additional protection for emulsion available upon request
- Enable high drive speeds
- Stainless and acid-resistant telescopic plates
- Telescopic plates are easy to replace
Structure
The sturdily articulated shaft runs parallel to the ridges of the pleats. The telescopic plates are connected to the articulation without gluing, either with or without additional compression. The number of telescopic plates depends on the recommended extension of the cover. The method of attaching the outer telescopic plate depends on the application and environment of the bellows cover.
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Frequently asked questions
Maxjas Oy supplies way and bellows covers, chip conveyors and way lubrication equipment, machine guards, cable channels and other accessories for machine tools. We offer extensive maintenance services for way covers for machine tools and comprehensive life cycle services for our way covers.
At the latest, way covers should be serviced when they become visibly worn, dented or damaged. However, maintenance is best done pre-emptively, which is why Maxjas recommends regular, annual maintenance for way covers. By following that approach, the covers will last longer and production is shielded from unexpected shutdowns.
If you do not know whether your way covers require maintenance or not, you can arrange for Maxjas to evaluate the condition and remaining lifetime of the covers free of charge.
In terms of maintenance of way covers, we replace section wipers, smooth section surfaces, replace any worn or damaged slides, bearings, brass and other parts. Each repaired cover is tested before return to the customer. Before each maintenance service, the client is given a cost estimate and details of the work to be done. On request, we can also carry out installation after maintenance.
We can procure way covers for any machine. We can take the measurements from the old cover and provide a new one quickly and at a competitive price.
Our life cycle service helps companies to get a better understanding of maintenance as a whole and to be prepared for the next step in maintaining their way covers. With our life cycle service, we identify and classify the way covers sent to us according to their condition. When the cover’s next estimated maintenance date is due, we already know what work needs to be carried out.
This enables us to accurately monitor the development of the way cover’s condition and provide a new cover for our client in time, before the way cover reaches the end of its life. This in turn creates continuous savings for our clients and prevents unnecessary production downtime.
