A cement mortar spray machine is a specialized construction equipment designed to automate mortar spraying and wall plastering, replacing traditional manual troweling to greatly improve construction efficiency and finish quality. As a high-performance mortar spraying machine, our YG series models are engineered to deliver stable pressure and consistent spraying effect, adapting to various mortar formulations and construction scenarios. This wall plaster spray machine is suitable for both small-scale home renovation and large commercial construction projects, with a full lineup of models to match different project scales and site requirements. If you want to know the spray plaster machine price for different configurations, our team can provide a detailed, customized quotation based on your specific project needs. Mortar spraying machines can be used in conjunction with wall plastering machines.YG also offers high-quality wall plastering machines.
YG Cement Mortar Spray Machine Parameter:
| 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 |
On-Site Construction Operation Tips
To maximize the performance of your mortar spraying machine and ensure a high-quality finish, follow these actionable on-site operation tips tailored to YG series models:
1. Pre-Construction Material Preparation
Always mix the mortar strictly according to the recommended 0.7-1:1:3 ratio (water, ash, sand) for all YG models, and filter out particles exceeding the maximum allowable size (≤4mm for YG311, ≤8mm for other models) to avoid pipeline blockage. For outdoor remote sites using the YG500 diesel model, pre-adjust the engine idle speed according to the ambient temperature to ensure stable power output.
2. Site Layout & Equipment Placement
For high-rise construction with YG318, YG500, and YG711 models, place the equipment in a flat, stable position to maximize the 50m horizontal and 30m vertical conveying distance, and avoid excessive bending of the delivery pipe to reduce pressure loss. For narrow interior renovation sites with the compact YG311 model, use a shortened delivery pipe to improve operation flexibility.
3. Spraying Operation Standardization
Maintain a consistent 30-50cm distance between the spray gun and the wall surface, and keep the gun perpendicular to the wall for uniform coverage. For the first pass spraying, control the thickness at 5-8mm, and apply a second pass after the first layer is initially set, to avoid hollowing and cracking.
Advantages Over Traditional Manual Plastering
1. Faster Construction Progress
It greatly accelerates the overall construction rhythm compared to manual plastering. Unlike the slow, step-by-step manual troweling process, the cement mortar spray machine supports a continuous, uninterrupted spraying operation, completing wall plastering works in a much shorter time frame. It effectively shortens the project cycle and helps you meet tight construction schedules with ease.
2. Stable and Consistent Finish Quality
Manual plastering finish quality relies heavily on the skill, experience and physical state of the worker, often leading to inconsistent results across different construction sections. The equipment delivers a uniform and stable spraying effect, ensuring a smooth, flat plaster layer with consistent thickness across the entire wall surface. It effectively avoids common quality defects caused by manual operation, helping you meet strict construction acceptance standards reliably.
3. Reduced Labor Dependence and Intensity
Traditional manual plastering requires multiple skilled workers to complete material mixing, troweling and finishing, with extremely high physical labor intensity. This equipment only needs a small crew to complete the full spraying process, greatly reducing the physical burden on on-site workers. It also lowers your reliance on highly skilled professional plasterers, making it easier to arrange construction manpower and easing the pressure of labor recruitment and management.
4. Minimized Material Waste
Manual troweling often causes a large amount of mortar to drop and unnecessary waste during the construction process, while the closed conveying and spraying system of the equipment minimizes material loss throughout the whole operation. This helps you better control the material consumption of the project, reducing unnecessary material costs and improving the overall economic benefits of your work.
5. Wider Adaptability to Complex Scenarios
It adapts to a far wider range of construction scenarios than manual plastering, including high-rise building exterior walls, narrow interior spaces, large industrial factory walls, and special-shaped wall surfaces. It can maintain stable construction performance in different working environments, while manual plastering often faces great limitations and efficiency drops in these complex construction scenarios.
How to Maintain Your Cement Mortar Spray Machine?
- Full Cleaning for Material-Contacting Parts. Thorough cleaning is the core step to prevent pipeline blockage and corrosion. Clean the hopper, delivery pipe, and spray gun before each use to remove residual debris; after construction, flush all mortar-contacting parts with clean water, drain residual water completely, and wipe the machine body to keep it tidy.
- Routine Inspection of Core Components and Connections. Check all fasteners, pipe joints and seals before each use, tighten loose parts and replace worn/aging seals in time to avoid pressure or material leakage. Regularly inspect the spray nozzle and conveying screw for wear, and replace them promptly to ensure a stable spraying effect.
- Standardized Power System Maintenance. For electric models (YG311, YG318, YG711), regularly check electrical wiring for damage or loose connections, and monitor the motor for abnormal noise or overheating. For the diesel YG500, check and replenish engine oil regularly, replace oil and filters according to use intensity, and keep the engine clean for stable outdoor operation.
- Scientific Lubrication and Anti-Corrosion Protection: Apply qualified lubricating grease to all moving and rotating parts regularly to reduce friction and wear. For rust-prone metal parts (especially those frequently contacting water and mortar), apply a thin layer of anti-rust oil periodically to avoid corrosion.
- Standardized Storage for Long-Term Idle State. For long-term idle storage, fully clean and dry the whole machine, apply anti-rust oil to metal parts, and disassemble the delivery pipe and spray gun for separate dry, ventilated storage. Drain fuel and oil for the diesel model, disconnect the battery for electric models, and store the machine in a dry, rain-proof warehouse away from direct sunlight.
FAQ About Cement Mortar Spray Machine
A: In addition to conventional cement mortar, this wall plaster spray machine is also compatible with thermal insulation mortar, fireproof coatings, putty, decorative mortar and other fluid mortar materials, as long as the material mixing ratio and aggregate particle size meet the equipment’s requirements.
A: The machine is designed with an anti-blocking screw conveying structure, and blockage will not occur under standardized operation. To avoid blockage, just mix the mortar strictly according to the recommended ratio, filter out oversized aggregate before feeding, and thoroughly clean the hopper, pipe and spray gun immediately after each use.
A: You can contact our professional team directly, tell us your project scale, construction scenario, and specific needs, and we will provide you with a detailed, accurate quotation and a customized solution tailored to your actual needs the first time.
A: Except for the YG311 model, which supports 20m vertical conveying, YG318, YG500, and YG711 all support up to 30m vertical conveying distance, which can fully meet the plastering construction needs of most medium and high-rise buildings.
