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SPJ10-6-19 Wet Concrete Shotcrete Machine, Two independent hydraulic circuits, PLC accurate control, Multi-points lubrication - details see: https://www.machineto.com/small-shotcrete-machine-spj10-6-19-wet-concrete-shotcrete-machine-10095797

SPJ10-6-19 Wet Concrete Shotcrete Machine

Brief introduction

Now concrete spraying machines are mainly divided into two types:dry spraying machine and wet spraying machine.

They are used for grouting protective coat of thin-walled structure and steel structure such as tunnel lining, wall,ceiling and so on.

Concrete spraying machines are widely applied in concrete spraying construction operations of mine, tunnel,culvert,metro, hydroelectric project, underground construction and slope protection.

Dry spraying machines adopt the method that mix dry cement, sand and stone on average, deliver the materials to the nozzle by compressed air and blend pressure water to spray.it must be operated by well-trained operator, grain size shouldn’t be too big,the dosage of cement is higher, but dust pollution and the resilience are more serious due to big spraying speed and it is restricted in the using.

Wet spaying machines are conveying concrete mixed to the nozzle by the pump,compressed air is added at the outlet of pump to make materials and air fully mixed in the pipeline, which helps the materials sprayed more uniform.Accelerator is also put at the nozzle to expedite setting of materials. With this method, spraying speed is lower, resilience is reduced, mixed materials is easy to control, the working efficiency is higher than dry spraying.

Technical parameter

	Item		Unit	Parameters
Whole machines performance	Max. discharging volume		m³/h	10
	Max. delivery pressure		Mpa	6
	Max. delivery frequency		times/min	11
	Theoretical Delivery distance	Vertical	m	80
		Horizontal	m	200
	Distribution valve type			Svalve
	Specification of delivery cylinder		mm	Φ140×800
	Specification of main oil cylinder		mm	Φ80×Φ50×800
	Outlet opening diameter		mm	Φ125
	Hopper capacity		L	300
	Feeding height		mm	1100
Power system	Rated voltage		V	~380
	Main motor power		Kw	18.5
	metering pump power		Kw	0.75
	metering pump displacement		L/h	0-250
	System wind pressure		Mpa	0.6-0.8
	Working wind pressure		Mpa	0.3-0.5
	Air consumption		m³/min	6-8
Hydraulic system	Hydraulic oil circuit type			Open circuit
	Control mode			Electric control(with PLC)
	Max. oil pressure of main system		MPa	18
	Max. oil pressure of distributing system		MPa	9
	Max. oil pressure of mixing system		MPa	9
	Max. mixing speed		r/min	24
	Oil tank capacity		L	200
Other parameters	Max. diameter of aggregates		mm	Crushed stone≤10,pebble ≤15
	concrete slump		cm	12-23
	Inner dia. of delivery pipe		mm	Φ65/Φ51
	resilience			≤15%
	Working dust concentration		mg/m³	≤10
	Dimension (length*width*height)		mm	4100×1500×1500
	Weight		Kg	1700
	Pulling speed		Km/h	≤8