Single wall bends for concrete pumps

We manufacture a complete range of single-wall bends for diverting the flow of material. Used mainly in concrete pumping lines mounted on the arms of concrete pumps and truck mixer pumps, RM® bends are designed to withstand the high abrasiveness of pumped concrete, ensuring uniform and controlled distribution on construction sites.

We produce single wall bends using high-quality wear-resistant manganese steel with increased wall thickness in critical areas most exposed to abrasion. This key feature significantly extends the service life of the bends and reduces machine downtime.

We offer a wide selection of diameters and radiuses to meet different technical specifications. The bends are equipped with various types of weld-on rings, ensuring perfect compatibility and secure connections with different joining systems.

Our range is fully compatible with the bends of the main concrete pump manufacturers, including Cifa®, Coime®, Mecbo, Putzmeister®, Schwing®, Sermac® and Turbosol®.

Each bend is designed and manufactured in strict compliance with the essential safety requirements of EN 12001:2012, with a safety factor of 2 to ensure maximum reliability.

Cast bends

Vega® cast bends are made of cast steel, manganese and chrome alloys in proportions that achieve excellent mechanical properties combined with high wear resistance, from 200HB to 400HB. The bends have greater thicknesses at the crucial points that are most subject to wear. Vega® cast bends are produced in different diameters, angles and radiuses with end collars of different designs according to the different connection systems required. The external turning of the ring increases the life of the sealing gasket. The range of Vega® cast bends are compatible with the bends used by the most important manufacturers of pumping machines such as Cifa®, Coime®, Mecbo®, Putzmeister®, Schwing®, Sermac® and are mainly used in the realization of the concrete pumping line mounted on the boom of concrete pumps and truck-mixer pumps.

Code	α	DN	D	R	Kg
20349002	90	79 mm	97 mm	152	5
20453010	30	100 mm	127 mm	380	6
20454501	45	100 mm	127 mm	275	6.5
20454508	45	100 mm	127 mm	365	8.5
20456006	60	100 mm	127 mm	210	6.6
20456007	60	100 mm	127 mm	310	10.5
20459001	90	100 mm	127 mm	275	13
20459002	90	100 mm	127 mm	180	8
20459003	90	100 mm	127 mm	285	13
20459004	90	100 mm	127 mm	170	8
20459005	90	100 mm	127 mm	175	8
20459022	90	100 mm	127 mm	278	12.5
20474523	45	112 mm	148 mm	232	7.8
20479001	90	112 mm	148 mm	275	15.6
20479002	90	112 mm	148 mm	180	12.8
20551501	15	125 mm	148 mm	495	5
20552001	20	125 mm	148 mm	390	5
20553001	30	125 mm	148 mm	325	5
20553009	30	125 mm	148 mm	365	7
20554501	45	125 mm	148 mm	275	7.5
20559001	90	125 mm	148 mm	275	15
20559002	90	125 mm	148 mm	180	12.6
20559021	90	125 mm	148 mm	228	13.5

Cast tapered bends

In order to complete the offer to our customers, RM® has designed and manufactured cast bends having the same technical features of the generic cast bends, but with the peculiarity of having the outlet diameter smaller than the inlet diameter.

Raw Bends

Raw bends in anti-wear manganese with different thicknesses.

Code	DN1 mm	Inches	DN2 mm	Inches	Max.	R	α	Kg
RCC40.30.90	100	4	75	3	13	160	90	9
RCC50.40.90	125	5	100	4	13	190	90	12
RCC60.50.90	150	6	125	5	15	250	90	15.5
RCC70.60.90	175	7	150	6	15	390	90	33

Bends with welded rings

Code	DN1 mm	Inches	DN2 mm	Inches	Max.	R	α	Kg
RCC4HD3HD90	100	4"HD	75	3"HD	13	160	90	9.9
RCC554590	125	5"1/2 SK	100	4"1/2 SK	13	190	90	13
RCC5HD4HD90	125	5"HD	100	4"HD	13	190	90	14

Special bends with carbide collars

ZL – Light

Bend DN100 collars 4″1/2 SK
Bend DN125 collars 5″1/2 SK
Differentiated Wall Thickness*: max 13 mm
Angle: from 30° to 90°
Collars: double wall with chrome carbide inserts, hardness 63 HRC (Rockwell)
Working Pressure: 85 bar

*Wall thickness depends on the model and may vary based on size and angle

curva fusa con anelli in carburo_pompaggio calcestruzzo