S 55 SX

A combination of the best characteristics of an Overhead Roll and Fold™ and Z boom sets the standard for versatility.

Expect nothing less from this new Schwing RZ5 boom that combines the best characteristics of an Overhead Roll and Fold™ and a Z in a five-section boom.

And you can gain an extra six feet of boom reach with the S 55 SX that features a longer tip section.

Technology : Vector Control Systems

Now operators have valuable operational data at their fingertips because Vector is the first system to allow monitor-ing of the pumping process from the remote control box.

Technology : Rock Valve & Big Rock Valve

The revolutionary Rock Valve and the optional Big Rock Valve provide absolute reliability. The only completely rebuildable valves in the industry.

Technology : Generation 3 Concrete Pump Kits

The Generation 3 outperforms every other concrete pump on high visibility projects while also placing millions of yards of concrete on everyday pours.

Boom Specification
Boom Specifications U.S. Metric
Pipeline Diameter 4′ 5″ 112 mm
Vertical reach 178′ 8″ 54.5 m
Reach From Slewing Axis 166′ 1″ 50.6 m
Net Horizontal reach 154′ 47 m
Unfolding Height 38′ 2″ 11.7 m
Section Lengths:
First Section 25′ 5″ 10.7 m
Second Section 35′ 3″ 10.8 m
Third Section 35′ 1″ 10.6 m
Fourth Section 34′ 11″ 10.7 m
Slewing Range 370 deg. 370 deg.
End hose Length 10′ 3 m
Specifications are subject to change without prior notice.


Pump Specs
Pump Kits

2525H-6 120/85 MPS



Theor. Concrete Output (cu./yds/hr)



Max. Pressure on Concrete (psi)



Max. Strokes/Min.



Pump Cylinder Diameter (in.)



Pump Cylinder Stroke Length (in.)



Differential Cylinder Size (in.)



Max. Aggregate size (in.)



Specifications are subject to change without prior notice.

Boom Chart

Outrigger Speed

Truck Specs

Other Details


  • Auto Greaser (Rock Valve Only) – Standard
  • Auto Greaser (Pump and Boom Only) – Standard
  • Auto Greaser (Pump, Boom and Chassis) – Standard
  • Auto Greaser, Chassis
  • Carbide Wear Parts – Standard
  • Digital Electronics – Standard
  • Esser Twin Wall Pipe and Elbows – Standard
  • Extended Rock Valve
  • Extended Life Kit (Includes Esser Twin Wall Pipe, Elbows, Deck Pipe Reducer and Carbides) – Standard
  • Hardened Pipe with Double Wall Elbows – Standard
  • Harsh Mix Kit
  • High Pressure Washer
  • Hopper Vibrator – Standard
  • Hose and Fitting Kit
  • Polished Full Fenders (rear)
  • Radio Remote Control – Standard
  • Proportional Boom Controls – Standard
  • Water Tank Heater

Truck Selection

  • Mack m/n DMM 400 HP, Electronic
  • Tor (Twin Steer Front Axle Standard)
  • Other Trucks Available on Request

Truck Options

  • Canadianize Truck
  • Pusher Axle
  • Tag Axle
  • XZY Rear Tire Upgrade

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