The LPS10/80 wet shotcrete pump has an adjustable output of 5–10 m³/h and an output pressure of 80 bar, while REED concrete pumps have concrete pressures from 69 to 145 bar.
Published specifications include 5–10 m³/h at 80 bar for the LPS10/80, and concrete outputs of 15–70 m³/h with pressures of 69–145 bar for the REED B Series.
What Output Pressure Means for a Wet Shotcrete Pump
The relevant rating is the maximum material pressure available at the pump, not a promise that every mix will reach that pressure at the nozzle. REED lists concrete pressures from 1,000 psi, or 69 bar, to 2,113 psi, or 145 bar, across its B Series models [S1].
Pump pressure, output, and conveying distance are coupled. REED states that maximum output, pressure, and distance cannot all be reached simultaneously, while actual performance varies with mix design, slump, local aggregate, pipe diameter, hose type, and bends [S1]. A shotcrete machine therefore needs more than a single pressure figure in its procurement specification.
Concrete pumps are positive-displacement machines. The operator sets the intended volume, while pressure rises when a plug or difficult mix restricts flow [S4]. This distinction matters because a pump rated at 80 bar can still create a hazard if the delivery line cannot safely contain the system pressure.
Pressure by Pump Design and Published Capacity
Wet-process pumps include hydraulic swing-tube, squeeze-tube or peristaltic, and hydraulic ball-valve arrangements, each operating over a materially different pressure band [S5]. The main comparison is straightforward:
This comparison uses material pressure or piston-face pressure as the published figure, but manufacturers do not necessarily define every rating in the same way [S3][S5]. Confirm the measurement basis before comparing quotations or setting a line-pressure target.
Choosing 80 Bar versus 150 Bar Capacity
An 80 bar wet shotcrete pump is a credible mid-range selection when the design mixes fit a 15–20 mm aggregate limit. The LPS10/80 combines 5–10 m³/h adjustable output, 80 bar pressure, a 22 kW motor, 15–20 mm maximum aggregate, and a 2,800 × 1,300 × 1,500 mm footprint [S2].
A unit near 150 bar provides a different operating margin, but its suitability depends on the mix, aggregate size, delivery system, and working pressure of the selected line components.
The higher-pressure option is not automatically better. A squeeze pump’s lower pressure can protect cellular concrete bubbles, and the ball-valve configuration limits aggregate to 10 mm [S5]. Selection should begin with the mix and delivery envelope, not with the largest advertised pressure.
Capacity, Aggregate and Nozzle Compatibility
Aggregate size is a hard mechanical constraint because it affects chamber filling, line resistance, wear, and blockage risk. The 80 bar LPS10/80 accepts a stated maximum aggregate of 15–20 mm, while the X-10 lists a 75 mm discharge and identifies 10 mm aggregate shotcrete among its applications [S2][S3].
REED’s B Series spans concrete outputs of 15–70 m³/h, with maximum aggregate sizes of 19 mm for the B20 and B20HP and 38 mm for the models from B50 through B70HPS. The REED B20 has a 102 mm outlet size.
Published wet-pump output spans 5–10 m³/h for the LPS10/80 and 15–70 m³/h for the REED B Series. Match nozzle and hose diameter to the pump outlet, confirm the maximum aggregate against the mix specification, and treat output as a controlled range rather than a guaranteed delivery rate at maximum pressure.
High-Pressure Risk and Delivery-Line Requirements
An 80 bar concrete-pressure rating identifies the pump’s published rating, while delivery-system working pressure must be assessed separately.
Older published pump specifications should be checked against the manufacturer’s current data and the owner’s manual before selection.
Older published pump specifications should be checked against the manufacturer’s current data and the owner’s manual before selection.
Pressure Is Not the Only Selection Criterion
A wet shotcrete pump with a 65 bar concrete-pressure rating can still provide adjustable output from 5–30 m³/h. The BP 25 WET SHOTCRETE PUMP uses a 160 × 1,000 mm pumping cylinder and combines that pressure with a much wider output-control range than the LPS10/80’s 5–10 m³/h [S2][S6].
The REED range lists horizontal pumping distances of 228–670 m and vertical pumping distances of 91–267 m, with each distance marked by an asterisk.
REED also specifies concrete-cylinder dimensions from 102 × 914 mm on the B20 to 178 × 1,067 mm on the B70, with hydraulic oil capacities of 197 L and fuel capacities of 91 L [S1]. These figures matter when the pump must fit restricted access routes or operate where fuel and service support must be carried with the machine.
Sourcing and Compliance Checks
A pressure-rated wet shotcrete pump should be purchased with its test method, delivery-line requirements, and operating limits documented in the manufacturer’s manual or machine data plate. The owner’s manual and machine tag remain the controlling references for the pump’s actual concrete delivery-line working pressure [S4].
The published X-10 specification includes CE certification, solid-state electronics, a swing-out receiving hopper, and a receiving-hopper agitator [S3]. Those features support controlled handling and maintenance, but they do not replace pressure-system inspection. The X-10’s swing-out hopper gives access to the swing-tube section for cleaning, a routine requirement for wet shotcrete pumps [S3][S5].
Before acceptance testing, record the model, concrete-pressure rating, rated output, aggregate limit, outlet diameter, maximum hose and pipe working pressure, and applicable owner’s-manual settings. Check these values on the nameplate and delivery components rather than relying only on a web specification, then perform a controlled test with the intended mix and delivery layout.
The traceable next check is simple: compare the selected pump’s published pressure rating against the delivery system’s working-pressure markings, confirm that the line is rated for the selected pump setting, and test the intended mix before starting production.