A mortar sprayer machine is a self-contained screw pumping system that applies cement mixes and functional coatings evenly across walls, ceilings and structural surfaces. With built-in pressure generation, it operates independently without an external air compressor, delivering pulsation-free material flow for reliable construction finishing work. The YG series concrete spraying equipment delivers 3-4 m³/h output at 3 MPa pressure, covering over 100 square meters per hour. It handles particles up to 8mm, comes with a 32mm hose and 80L hopper, and is available in electric or diesel configurations.
Mortar Sprayer Machine Parameters:
| Model | YG311 | YG318 | YG500 | YG711 |
| Greatest Pressure | 3Mpa | 3Mpa | 3Mpa | 3Mpa |
| Capacity | 3㎡/h | 3㎡/h | 3㎡-4㎡/h | 4㎡/h |
| Applicable material ratio(water, ash, sand) | 0.7-1:1:3 | 0.7-1:1:3 | 0.7-1:1:3 | 0.7-1:1:3 |
| Main motor power | 4KW | 7.5KW | 8hp/12hp | 7.5KWstrength |
| Particle Size | ≤4mm | ≤8mm | ≤8mm | ≤8mm |
| Conveying Distance | H:30m/V:20m | H:50m/V:30m | H:50m/V:30m | H:50m/V:30m |
| Hopper Volume | 60L | 80L | 80L | 100L |
| The diameter of the feed delivers the pipe | 32mm | 32mm | 32mm | 32mm |
| Weight | 200KG | 320KG | 320KG | 320KG |
What Can a Mortar Sprayer Machine Spray?
The YG series concrete spraying equipment is built for versatility. It handles a wide range of water-soluble materials, making it suitable for multiple applications across different job sites.
- Cement-based materials. The machine handles cement mortar, dry-mix mortar, and self-mixed mortar for wall rendering, plastering, and masonry work. It processes standard mortar mixes with a material ratio of 0.7-1:1:3 (water-cement-sand).
- Finishing materials. The machine sprays putty powder, latex paint, real stone paint, and textured coatings for interior and exterior wall finishing.
- Specialty coatings. The machine applies fireproofing materials, thermal insulation mortars, waterproofing compounds, acoustic coatings, and sound-absorbing materials.
- The key limitation: The maximum aggregate size is 8mm. This is standard for mortar spraying machines—anything larger will clog the rotor and hose. The machine works best with factory-bagged renders that contain additives for flowability.
The 32mm delivery pipe provides consistent flow without clogging, and the nozzle can be adjusted to achieve different spray patterns—from fine mist for thin coatings to heavy flow for thick plaster layers.
How Does the YG Mortar Sprayer Machine Work?
The YG series concrete sprayer machine operates on a simple but effective principle: continuous mixing and pressurized delivery.
- Mixing. The operator loads the material (cement, sand, and water in the correct ratio) into the 80L hopper. The machine mixes the material into a uniform mortar.
- Pumping. A rotor-stator pump pressurizes the mortar and pushes it through the 32mm hose. The continuous feed means no pulsing—the material flows steadily to the nozzle.
- Spraying. The operator directs the nozzle at the wall surface. The spray pattern and thickness can be controlled precisely by adjusting the nozzle and the machine’s output. Compressed air is not required—the machine’s pressure system delivers the force needed.
- Finishing. After spraying, the plasterer uses traditional hand tools—straightedges, floats, and trowels—to level and finish the surface. The machine handles the volume; the tradesman handles the quality.
- Remote control. The YG series includes a remote control switch on the spray gun, allowing the operator to start and stop the spray without returning to the machine. The nozzle connection rotates, making it easier to work in tight spaces and at awkward angles.
Return on Investment: The Numbers Behind the Decision
How fast does a mortar sprayer machine pay for itself? A single YG series machine with a 3-person crew covers 1,000 square meters per day at 2cm thickness. The same output manually would require 20 skilled workers.
On a 500 m² residential wall project:
| Manual (Hand Trowel) | YG Mortar Sprayer Machine | |
| Daily output | 60-80 m² (1 worker) | 1,000-1,200 m² (3 workers) |
| Workers required | 20 skilled | 3 total (1 spray, 1 load, 1 finish) |
| Labor cost per day | 20 × wage | 3 × wage |
| Material waste | 10-15% | Less than 5% |
| Time for 500 m² job | 2-3 days | Half a day |
The result: The machine crew uses 85% less labor and finishes the job 4-6 times faster.
Material waste. Hand application drops 10-15% of mortar on the floor. Machine spraying applies material directly to the wall, reducing waste to under 5%. For a large project using 100 tons of mortar annually, this saving alone covers a significant portion of the equipment cost.
Payback period. The YG series cement plaster spray machine costs a fraction of the annual labor savings. Most contractors recover their investment within the first 1-2 months of regular use. Over a year, the savings multiply into six figures.
Concrete Sprayer Machine For Sale
A high-quality mortar sprayer machine replaces slow, labor-intensive manual troweling with fast, uniform mechanical application, drastically improving efficiency for construction finishing projects. YG manufactures every unit with industrial-grade screw pump components and strict pre-delivery performance testing, ensuring reliable long-term operation on demanding job sites. Our technical team helps each customer match the right model and configuration to their specific material types, project scale and conveying distance requirements.
If you are looking for a reliable cement plaster spray machine for your finishing, waterproofing or grouting projects, reach out to our team today. Share your project details, and we will provide tailored configuration recommendations and full technical specifications.
