Engineering Excellence
Precision Engineered Metal Bellows
Formed with Precision
Nutberry Bellows are manufactured by the precision roll formed method, from stainless steel or high nickel alloy material.
Precision Roll Formed Bellows
The method of manufacturing precision roll formed bellows was originally introduced in the USA. This forming process allows the material to be formed with minimal stretching and stress to the raw material.
At the time, the process was very labour and skill intensive and therefore expensive.
However, with the introduction of CNC forming, this process has been considerably improved and thus reducing the cost of production of the bellows and maintaining the superior performance we can now offer.
Advancements in Production
Nutberry bellows are manufactured using CNC controlled forming machines. The benefit of this manufacturing method is that it produces uniformed work hardening at both the root and crest of the convolutions, compared to traditional hydro-forming methods where metal can be thinned when forming the convolutions.
Metal Bellows Manufacturing
Material is taken in its sheet form, cut, rolled and welded along the seam to produce a tube. All welds are checked for leaks and integrity by mass spectrometer testing. The tube is then precision form rolled into convolutions with CNC rolling machines to the required specifications.
Flexible Manufacturing
Nutberry can manufacture up to six-ply bellows with material thickness ranging from 0.13mm to 0.75mm. Bore sizes range from 16mm to 200mm. The manufacturing process adopted by Nutberry allows flexibility for customers to choose specific sizes for their applications rather than being limited to choosing off-the-shelf options.
Industry Leaders
Why Choose Nutberry Bellows?
Nutberry Bellows offers superior, cost-effective, custom-sized bellows with enhanced strength and guaranteed quality.
AUTOMATION
Manufacturing process produces a superior competitively priced bellows.
CNC ROLL FORMED BELLOWS
Improved uniformed work hardening process increasing ultimate tensile strength of material.
FLEXIBILITY
Any size bellows can be manufactured to your specific requirements.
RELIABILITY
Consistent geometry due to CNC controlled operations.
QUALITY
Quality commitment and guarantee offered by Nutberry. Bellows designed using EJMA calculations and in-house fatigue testing.
