S 55 SX


View S 55 SX Brochure





Vertical Reach 178′ 8″ 54.5 m
Horizontal Reach 166′ 1″ 50.7 m
Below Grade Reach w/ Tip Hose 139′ 1″ 42.4 m
Pipeline Diameter 4.5 in 112 mm
Boom Type/ Sections RZ5 Overhead
Roll & Fold® / 5
Boom Rotation 370 degrees
Unfolding Height 40′ 4″ 12.3 m
Outrigger Type- Front Super X, Hydraulic Extension & Jacking
Outrigger Type- Rear Hydraulic Slewing & Jacking
Outrigger Soil Pressure w/o Dunnage (front/rear) 698/616 psi  48.1/42.5 bar
Outrigger Soil Pressure w/ Dunnage (front/rear) 62/55 psi  4.3/3.8 bar
Outrigger Width, Front 29′ 3″ 8.9 m
Outrigger Width, Rear 34′ 4″ 10.34 m
Outrigger Length 35′ 4″ 10.8 m




Theor. Concrete Output 213 cu yds/h 163 cu m/h
Max. Pressure on Concrete 1169 psi 81 bar
Max. Strokes Per Minute 22
Max. Aggregate size 2.5 in 63.5 mm
Material Cylinder Diameter 10 in 254 mm
Material Cylinder Stroke 98 in 2500 mm
Differential Cylinder Diameter 4.7 in 120 mm
Maximum Oil Flow 158.5 gal/min 600 l/min
Hydraulic Circuitry Type MPS
Valve Type B Rock
*Pump specifications are for standard units. Other units are available. Specifications are subject to change without prior notice.



5-Section RZ5 Overhead Roll and Fold®

The 270-degree articulation of the tip section means maximum versatility especially when combined with the main section’s 180 degrees of working range.  

Generation 3 Pump Kit

Outperforms every other concrete pump on high visibility projects while also placing millions of yards on everyday pours.  

Vector Controls

Valuable operational data at your fingertips to allow monitoring of the pumping process from the remote control box.  

Rock Valve™

No other sequencing valve combines lowest cost per yard maintenance costs and ease of rebuilding as the Rock Valve™.  

EASy Flex One-Sided Outrigger System

Reduce the footprint of selected pumps with one-sided outrigger system that allows full boom extension with safe operation through integration with boom controls.
Do you own this pump? Email a review to marketing@schwing.com.