Reducers

BLECHA is your specialist for high-quality concentric and eccentric aluminum reducers!
Our products are characterized by first-class quality and versatile application possibilities. We offer concentric and eccentric reducers perfectly tailored to the needs of your tank truck construction, plant and pipeline construction, and shipbuilding projects.
Our stocks cover a wide range of aluminum alloys including EN AW-6060 (AlMgSi), EN AW-5083 (AlMg4.5Mn) and EN AW-5754 (AlMg3). Of particular note is our seawater resistant alloy, EN AW-5083 (AlMg4.5Mn), which is perfect for shipbuilding due to its resistance to corrosive environments. These pipe fittings in the EN AW-5083 alloy are used not only in general pipe construction, but also in the most demanding pipe systems on ships.

Our extensive experience of over 36 years in aluminum wholesale speaks for itself. As an established company in the B2B sector, we not only offer outstanding products, but also unsurpassed customer service. Our dedicated team is at your disposal to develop tailor-made solutions for your specific requirements.
We understand how important efficiency and reliability are in your industry. That's why we work closely with freight forwarders and parcel services to ensure that your orders always reach you on time and in the best condition. We also continually invest in our own fleet to ensure a smooth supply chain. Thanks to our extensive distribution network, we not only supply national customers, but are also proud to export our products to over 60 countries worldwide. Our main markets span Europe, the USA, Africa and Australia, where our quality and service are valued.

Your projects deserve the best materials to meet the highest standards. Our aluminum concentric and eccentric reducers are designed for durability, corrosion resistance and precision. Not only do we offer a wide range of standard designs, we are also able to offer bespoke solutions to ensure your requirements are optimally met.
Contact us to find out more about our extensive product range and services. We look forward to assisting you with your projects in tanker vehicle construction, in plant and pipeline construction as well as in shipbuilding. Rely on BLECHA as your trustworthy partner in the aluminum trade!


Reducers concentric

Alloy Dimension kg/pc
EN AW-5083 (AlMg4,5Mn) 33,4 x 26,7 x 3,38/2,87 mm 0,040
EN AW-5754 (AlMg3) 60 x 33,7 x 3 mm 0,100
EN AW-6060 (AlMgSi) 60,3 x 42,4 x 5 mm 0,176
EN AW-5083 (AlMg4,5Mn) 60,3 x 33,4 x 3,91/3,38 mm 0,138
EN AW-5083 (AlMg4,5Mn) 60,3 x 42,2 x 3,91/3,56 mm 0,138
EN AW-5083 (AlMg4,5Mn) 60,3 x 42,16 x 5,54/4,85 mm 0,450
EN AW-5083 (AlMg4,5Mn) 60,3 x 48,3 x 3,91/3,68 mm 0,138
EN AW-5083 (AlMg4,5Mn) 60,3 x 48,26 x 5,54/5,08 mm 0,500
EN AW-5083 (AlMg4,5Mn) 73,03 x 60,33 x 5,16/3,91 mm 0,200
EN AW-6060 (AlMgSi) 76 x 42 x 3 mm 0,161
EN AW-5083 (AlMg4,5Mn) 88,9 x 60,3 x 5,49/3,91 mm 0,373
EN AW-5083 (AlMg4,5Mn) 88,9 x 60,3 x 7,62/5,54 mm 0,419
EN AW-6082 (AlSi1MgMn) 88,9 x 73,03 x 3,05 mm 0,180
EN AW-5083 (AlMg4,5Mn) 88,9 x 73,03 x 7,62/7,01 mm 0,450
EN AW-6060 (AlMgSi) 89 x 60 x 3 mm 0,182
EN AW-6060 (AlMgSi) 89 x 76 x 3 mm 0,183
EN AW-6060 (AlMgSi) 90 x 60 x 5 mm 0,322
EN AW-6060 (AlMgSi) 106 x 86 x 3 mm 0,264
EN AW-6060 (AlMgSi) 108 x 60 x 5 mm 0,437
EN AW-6060 (AlMgSi) 108 x 76 x 4 mm 0,334
EN AW-6060 (AlMgSi) 108 x 89 x 3 mm 0,245
EN AW-6060 (AlMgSi) 108 x 89 x 4 mm 0,337
EN AW-6060 (AlMgSi) 108 x 89 x 5 mm 0,438
EN AW-5083 (AlMg4,5Mn) 114,3 x 60,3 x 6,02/3,91 mm 0,508
EN AW-5083 (AlMg4,5Mn) 114,3 x 73,03 x 6,02/5,16 mm 0,350
EN AW-5083 (AlMg4,5Mn) 114,3 x 88,9 x 6,02/5,49 mm 0,526
EN AW-5083 (AlMg4,5Mn) 114,3 x 88,9 x 8,56/7,62 mm 0,712
EN AW-6060 (AlMgSi) 114,3 x 89 x 3 mm 0,274
EN AW-6060 (AlMgSi) 133 x 108 x 4 mm 0,652
EN AW-6060 (AlMgSi) 159 x 108 x 5 mm 0,885

Reducers eccentric

Alloy Dimension kg/pc
EN AW-5083 (AlMg4,5Mn) 33,4 x 21,3 x 3,38/2,77 mm 0,039
EN AW-5083 (AlMg4,5Mn) 33,4 x 26,7 x 3,38/2,87 mm 0,040
EN AW-5754 (AlMg3) 60 x 33,7 x 3 mm 0,100
EN AW-6060 (AlMgSi) 60 x 42,4 x 5 mm 0,176
EN AW-5083 (AlMg4,5Mn) 60,3 x 33,4 x 3,91/3,38 mm 0,138
EN AW-5083 (AlMg4,5Mn) 60,3 x 42,2 x 3,91/3,56 mm 0,138
EN AW-5083 (AlMg4,5Mn) 60,3 x 42,2 x 5,54/4,85 mm
EN AW-5083 (AlMg4,5Mn) 60,3 x 48,3 x 3,91/3,68 mm 0,138
EN AW-5083 (AlMg4,5Mn) 60,3 x 48,3 x 5,54/5,08 mm
EN AW-5083 (AlMg4,5Mn) 73,0 x 48,3 x 7,01/5,08 mm
EN AW-6060 (AlMgSi) 76 x 42 x 3 mm 0,161
EN AW-5083 (AlMg4,5Mn) 88,9 x 60,3 x 10,00/5,54 mm
EN AW-6082 (AlSi1MgMn) 88,9 x 73,03 x 3,05 mm 0,180
EN AW-5083 (AlMg4,5Mn) 88,9 x 60,30 x 5,49/3,91 mm 0,373
EN AW-5083 (AlMg4,5Mn) 88,9 x 60,30 x 7,62/5,54 mm 0,419
EN AW-6060 (AlMgSi) 89 x 60 x 3 mm 0,182
EN AW-6060 (AlMgSi) 89 x 76 x 3 mm 0,183
EN AW-6060 (AlMgSi) 90 x 60 x 5 mm 0,322
EN AW-6060 (AlMgSi) 106 x 86 x 3 mm 0,264
EN AW-6060 (AlMgSi) 108 x 60 x 5 mm 0,437
EN AW-6060 (AlMgSi) 108 x 76 x 4 mm 0,334
EN AW-6060 (AlMgSi) 108 x 89 x 3 mm 0,245
EN AW-6060 (AlMgSi) 108 x 89 x 4 mm 0,337
EN AW-6060 (AlMgSi) 108 x 89 x 5 mm 0,438
EN AW-5083 (AlMg4,5Mn) 114,3 x 60,3 x 6,02/3,91 mm 0,373
EN AW-5083 (AlMg4,5Mn) 114,3 x 73,03 x 6,02/5,16 mm 0,350
EN AW-5083 (AlMg4,5Mn) 114,3 x 88,9 x 6,02/5,49 mm 0,526
EN AW-5083 (AlMg4,5Mn) 114,3 x 88,9 x 8,56/7,62 mm 0,712
EN AW-6060 (AlMgSi) 114,3 x 89 x 3 mm 0,274
EN AW-6060 (AlMgSi) 133 x 108 x 4 mm 0,652
EN AW-6060 (AlMgSi) 159 x 108 x 5 mm 0,885

Reducing outlet cross with 4" thread

Seamless pressing (not cast, not welded)

Alloy D x s
EN AW-6060 (AlMgSi) 114,3 / 114,3 x 60,3 / 76,1 x 6 mm

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