BSTFLEX Sewn Rectangular Bellows are custom flexible protective covers designed for machine ways, linear rails, ball screws, lead screws, actuators and other moving components with square or rectangular profiles. Their accordion-style fabric construction expands and compresses with machine travel while helping protect critical parts from dust, metal chips, abrasion, oil, coolant, sparks and heat.
Each rectangular fabric bellows can be customized in width, height, extended length, compressed length, stroke, fold geometry, material and mounting configuration. Available materials include coated nylon, silicone coated fiberglass, PTFE coated fiberglass, aluminized fiberglass and other technical fabrics for standard or high-temperature applications.
Custom flanges, mounting plates, reinforced ends, zipper or split designs are available for CNC machines, automation equipment, lifting systems and OEM industrial machinery.
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1BSTFLEX Sewn Rectangular Bellows are custom-fabricated protective covers designed for linear rails, machine ways, lead screws, ball screws, lifting mechanisms, actuators and other moving components with square or rectangular geometry. The flexible accordion construction extends and compresses with machine movement while helping isolate critical components from dust, metal chips, abrasive particles, oil, coolant, sparks and heat.
Unlike standard molded bellows, rectangular fabric bellows can be engineered around the actual machine envelope, stroke and installation space. Width, height, extended length, compressed length, fold geometry, mounting arrangement and fabric construction can all be customized for OEM equipment, replacement projects and special-purpose machinery.
Each application has different movement and clearance requirements. BSTFLEX can manufacture sewn rectangular bellows according to customer drawings, equipment dimensions or existing samples.
Typical customization includes:
| Specification | Available Options |
|---|---|
| Bellows Shape | Rectangular, square or custom |
| Inside Width | Custom |
| Inside Height | Custom |
| Outside Dimensions | Custom |
| Extended Length | Custom |
| Compressed Length | Custom |
| Stroke | According to machine travel |
| Fabric | Selected according to environment |
| Mounting | Flange, plate, collar, clamp or custom |
| Closure | Closed, zipper, hook-and-loop or custom |
| Reinforcement | Optional |
| Production | Prototype and OEM production |
The fold depth and number of convolutions are selected according to the required extension ratio, compressed space and operating movement.
The correct material depends on more than temperature alone. Abrasion, coolant, oil, sparks, radiant heat, chemicals and movement frequency should all be considered.
BSTFLEX can manufacture rectangular fabric bellows using materials such as:
Suitable for general machine protection where flexibility, abrasion resistance and contamination control are required.
Designed for elevated-temperature environments, hot machinery and applications exposed to sparks or radiant heat.
Suitable where higher temperature capability, chemical resistance and a low-adhesion surface are required.
Recommended for equipment located near furnaces, foundries, hot processing lines or other radiant heat sources.
Other material combinations can be evaluated according to the actual working environment.
Rectangular bellows are particularly suitable for protecting exposed machine ways and linear rails.
During machining or automated production, exposed guide systems can encounter:
A custom machine way bellows helps create a flexible barrier around these moving surfaces while maintaining the required travel.
Sewn rectangular bellows can be integrated into:
They are especially useful where the protected area has a rectangular profile or where a round bellows would not fit the available machine space.
For machinery operating near furnaces, welding cells, foundry equipment or hot production processes, BSTFLEX can manufacture high temperature sewn rectangular bellows using heat-resistant technical fabrics.
Depending on the application, suitable materials may include silicone coated fiberglass, PTFE coated fiberglass, aluminized fiberglass and other engineered fabrics.
The material should be selected according to:
Different mounting arrangements can be incorporated into the bellows design, including:
For equipment that cannot easily be dismantled, split or zippered constructions can simplify installation and maintenance.
BSTFLEX Sewn Rectangular Bellows can be used for:
For accurate quotation and design evaluation, please provide:
BSTFLEX can develop prototype and OEM sewn rectangular bellows according to drawings, dimensions or application requirements.
BSTFLEX combines custom fabric fabrication with experience in industrial thermal-protection materials. This allows us to manufacture both general-purpose machine bellows and high-temperature rectangular bellows for more demanding operating environments.
Custom dimensions, special materials, mounting configurations and OEM production are available.
For a new application, send us the machine dimensions, required stroke, operating environment and photographs or technical drawings for evaluation.
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Custom Sewn Zippered Bellows for Machine ProtectionIf you have questions or suggestions, please leave us a message,we will reply you as soon as we can!
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