When plastering jobs fall behind schedule and labour costs keep rising on construction sites, a reliable mortar sprayer machine becomes a game-changer for contractors. It automates mortar delivery and spraying, replacing slow hand plastering to cut manpower and minimize common defects such as hollowing and cracking. Whether you handle residential renovation, commercial finishing, or infrastructure work, a well-built cement mortar spray machine delivers uniform plaster layers and helps your team stay on budget.
A cement mortar spray machine works via a coordinated pumping and atomizing process:
Prepare mortar to the standard mixing ratio and load it into the hopper.
The motor or diesel engine drives the pump to generate stable pressure.
Mortar is pushed through the feeding pipe to the spray gun; the agitator on YG712 stops mortar settling.
Compressed air atomizes mortar at the nozzle for uniform spraying.
Adjust the flow knob to control plaster thickness freely.
This process delivers consistent mortar coating and reduces common plastering defects.
What Kind of Work Can You Finish With a Mortar Sprayer Machine?
A versatile machine supports a wide range of plastering and coating jobs across different construction sectors.
Interior and exterior wall plastering for new residential and commercial buildings
Renovation projects, including gypsum mortar spraying and thermal insulation layer construction
Foundation, basement and pit surface protection spraying
Tunnel lining, bridge anti-corrosion coating, and slope stabilization works
Decorative finishing: putty spraying and real stone paint application
Supported materials include ordinary cement mortar, waterproof mortar, thermal insulation mortar, anti-crack mortar, gypsum-based plaster, putty, and real stone paint. One important limit to remember: all aggregates inside the material must not exceed 12 mm to prevent pipe clogging and extend the service life of your cement mortar spraying machine.
Key Criteria to Check Before Investing in a Mortar Sprayer Machine
Before placing an order for a cement mortar sprayer, evaluate these core factors to avoid buying a model mismatched to your job site:
Required output and conveying range
Match hourly production capacity and horizontal and vertical transport distance to your project scale. Long-distance high-rise plastering will require models with higher pressure and longer delivery reach, such as YG712 or the 12HP version of YG511.
Power supply situation on site
If your job site has stable 380V power, an electric cement mortar spray machine is a cost-saving, quiet option. For field worksites with no available electricity, select the diesel-driven YG511 cement mortar spraying machine.
Material type and aggregate size
Confirm the sand and aggregate size of your mortar. All YG mortar spray machine models have a maximum aggregate limit of 12 mm. If you plan to switch frequently between cement mortar, gypsum and decorative coatings, verify the machine’s multi-material compatibility.
Mobility and site space
For narrow indoor renovation spaces, choose lightweight compact models like YG311. Heavy-duty models suit open, large construction yards.
After-sales and spare parts supply
Select suppliers that offer readily available wearing parts such as sealing rings, nozzles, and feeding hoses, plus technical guidance for troubleshooting and maintenance.
Complementary Equipment to Pair With Your Mortar Sprayer Machine
While a mortar sprayer machine handles fast mortar spraying, an automatic wall plastering machine is the ideal matching equipment to finish the wall surface in one workflow. The mortar sprayer sprays mortar onto the wall rapidly, and the plastering machine immediately flattens and trowels the fresh mortar to a smooth, even finish. This combination eliminates slow manual troweling and greatly raises overall plastering productivity.
Below are the parameters of YG automatic wall plastering machines:
Model
YG-800
YG-1000
Plastering height
Below 4 meters
Below 5 meters
Weight
270 kg
290 kg
Plastering thickness
2~30 mm
2~30 mm
Power
1.5 KW
1.5 KW
Plastering efficiency
500 CBM/8H
550 CBM/8H
Voltage
220 v/380 v optional
220 v/380 v optional
YG-800 fits standard 3m to 4m interior walls, while YG-1000 is designed for higher walls up to 5 meters. Both plastering machines support adjustable plastering thickness and dual voltage options. Using a cement mortar sprayer plus an automatic plastering machine together helps your crew finish more wall area per shift and keeps the finished wall flat with consistent thickness.
Cases
✅ New Zealand: 3 units of YG311 electric mortar sprayer machines were shipped to Auckland, New Zealand for coastal residential plastering. 👉 Click to View Details
✅ Dominican Republic: 1 set of YG mortar sprayer machine & automatic wall plastering machine was delivered to Santo Domingo for residential interior plastering. 👉 Click to View Details
FAQs
Q: What is the recommended mixing ratio for the YG mortar sprayer machine?
A: The standard ratio is Water: Cement: Sand = 0.7–1: 1 : 3 for all YG311, YG511, and YG712 cement mortar spraying machine models. Following this ratio reduces clogging and guarantees plaster strength.
Q: What maintenance work should I do after finishing spraying?
A: Clean the hopper, pump, and feeding pipe thoroughly with clean water right after use until clear water flows out of the nozzle. Inspect the sealing rings and nozzle before each new shift.
Q: What spare parts should I prepare in advance for a cement mortar sprayer?
It is recommended to stock spare nozzles, sealing rings, hose connectors, and wear-resistant pump sleeves. These are quick-wear parts for daily plastering work.
Q: Can the diesel cement mortar spraying machine run continuously all day long?
A: Intermittent continuous operation is supported. It is suggested to pause for short heat dissipation breaks after long hours of work to protect the engine.
