RM® manufactures high-performance double-wall pipes, specifically designed for concrete pumps where high wear resistance and maximum productivity are required.
The product consists of two separate layers, each performing a different function:
- The inner layer, made of hardened steel or special materials, is designed to withstand abrasion caused by the flow of mortars and concrete.
- The outer layer, designed as a containment structure, protects the pipe against impacts, stresses and external loads.
We offer a complete range of double-wall pipes in different versions, diameters and lengths, to meet every specific application requirement.
By using RM® double-wall pipes, customers can achieve a longer operating life, reducing replacement frequency and costly machine downtime. Our products ensure consistent performance even in the most demanding civil engineering, infrastructure and industrial projects, helping construction sites remain continuously productive.
Strength and durability
Proven reliability
The Endura line has been field-tested for years and delivers high performance recognized worldwide.
Features
The double-wall pipe is specifically designed for transporting abrasive materials.
- The inner pipe, made of high-carbon hardened steel, provides excellent wear resistance and extended service life
- The outer pipe protects the inner layer against torsional, bending and impact forces, ensuring the integrity of the pipeline even under the most extreme operating conditions
The Endura line is available in two versions, differentiated by wall thickness:
- Endura E – thickness 3+2 mm, ideal for installation on the pump boom
- Endura EH – thickness 4.5+2.3 mm, ideal for installation on the truck-mounted chassis where higher strength and resistance are required
Superior Performance
Superior Performance
Outstanding durability and resistance
The Xcentra line is specifically designed to withstand the most extreme operating conditions, ensuring long-lasting performance even when handling highly abrasive materials.
Features:
The double-wall pipe is specifically designed for transporting extremely abrasive materials, while maintaining thickness and weight values suitable for installation on concrete distribution booms.
Selected for high-wear applications, it guarantees extended operating times without machine downtime.
- The inner pipe, made of hardened high-chromium centrifugally cast material, provides exceptional wear resistance and extended service life.
- The outer pipe offers optimal protection against torsional, bending and impact forces, preserving the integrity of the pipeline even in the most demanding conditions.
The Xcentra line is available in two versions, differentiated by wall thickness:
- Xcentra X – thickness 3+2 mm, ideal for installation on the pump boom
- Xcentra XH – thickness 5.5+2 mm, ideal for installation on the truck-mounted chassis where higher strength and resistance are required
BOOM
ENDURA LINE – DN100
E Series
- Pipe DN100 with SK 4″1/2 couplings, wall thickness 5.0 mm (3.0+2.0)
- Inner wall thickness: 3.0 mm
- Material: C67S – AISI 1065
- Hardness: HRC 62 (inner wall)
- Outer wall thickness: 2.0 mm
- Material: 20Mn5 – AISI 1022
- Length: from 100 mm to 4,080 mm
- Working pressure: 85 bar
- Burst pressure: 170 bar
- Average service life: 5–6 times longer compared to S355JR (St.52.3) pipes
ENDURA LINE – DN125
E Series
- Pipe DN125 with SK 5″1/2 couplings, wall thickness 5.0 mm (3.0+2.0)
- Inner wall thickness: 3.0 mm
- Material: C67S – AISI 1065
- Hardness: ≥62 HRC
- Outer wall thickness: 2.0 mm
- Material: 20Mn5 – AISI 1022
- Length: from 100 mm to 4,080 mm
- Working pressure: 85 bar
- Burst pressure: 170 bar
- Average service life: 5–6 times longer compared to S355JR (St.52.3) pipes
XCENTRA LINE – DN125
X Series
- Pipe DN125 with SK 5″1/2 couplings, wall thickness 5.0 mm (3.0+2.0)
- Type: double-wall centrifugally cast pipe
- Inner wall thickness: 3.0 mm
- Material: Mn/HiCr
- Hardness: ≥50 HRC
- Outer wall thickness: 2.0 mm
- Material: 20Mn5 – AISI 1022
- Length: from 100 mm to 4,080 mm
- Working pressure: 85 bar
- Burst pressure: 170 bar
- Average service life: 8–10 times longer compared to S355JR (St.52.3) pipes
CARRIER
ENDURA LINE – DN100
EH Series
- Pipe DN100 with SK 4″1/2 couplings, wall thickness 6.8 mm (4.5+2.3)
- Inner wall thickness: 4.5 mm
- Material: 45Mn2 – AISI 1345
- Hardness: ≥61 HRC
- Outer wall thickness: 2.3 mm
- Material: 20Mn5 – AISI 1022
- Length: from 100 mm to 4,080 mm
- Working pressure: 85 bar
- Burst pressure: 170 bar
- Average service life: 5–6 times longer compared to S355JR (St.52.3) pipes
ENDURA LINE – DN125
EH Series
- Pipe DN125 with SK 5″1/2 couplings, wall thickness 6.8 mm (4.5+2.3)
- Inner wall thickness: 4.5 mm
- Material: C67S – AISI 1065
- Hardness: ≥62 HRC
- Outer wall thickness: 2.3 mm
- Material: 20Mn5 – AISI 1022
- Length: from 100 mm to 4,080 mm
- Working pressure: 85 bar
- Burst pressure: 170 bar
- Average service life: 5–6 times longer compared to S355JR (St.52.3) pipes
XCENTRA LINE – DN125
XH Series
- Pipe DN125 with SK 5″1/2 couplings, wall thickness 7.5 mm (5.5+2.0)
Type: Centrifugally double-wall - Inner wall thickness: 5.5 mm
- Material: Mn/HiCr
- Hardness: ≥50 HRC
- Outer wall thickness: 2.0 mm
- Material: 20Mn5 – AISI 1022
- Length: from 100 mm to 4,080 mm
- Working pressure: 85 bar
- Burst pressure: 170 bar
- Average service life: 8–10 times longer compared to S355JR (St.52.3) pipes
WEAR RESISTANCE COMPARISON
