A building decoration company in Indonesia, specializing in producing GRC exterior wall panels, Roman columns, and decorative moldings. Their manual production process was slow. Workers mixed cement, sand, and glass fibers by hand, resulting in uneven fiber distribution and weak spots. Rejection rates were high.
The factory owner needed a solution that could:
- Increase output to meet growing demand.
- Ensure uniform fiber mixing for consistent strength.
- Reduce labor costs by automating material spraying.
After researching options, they decided to buy the grc spraying machine from YG. This grc spray machine arrived at their facility within five weeks.
Technical Parameters Of The GRC Spraying Machine
YG provides several configurations of the grc spray machine. Based on the customer’s production volume and available power, YG recommended Solution 3: a 3.0kw motor for the spray unit and a 2.2kw motor for the mixer. Below are the key specifications:
| Machine Name | Screw GRC Shotcrete Machine |
| Voltage | 380v,3phase |
| Frequency | 50hz |
| Power | 2.2-4.0kw step-less speed regulation motor |
| Rotating speed | 20-200r/min Speed regulation when the machine is running |
| Work area | 4.5M（Horizontal boom radius） |
| Delivery capacity | 300-1600kg/h |
| Capacity | 60L |
| Working pressure | 0.6-0.8mpa |
| Productivity | 200-400㎡/h |
| Machine size | 1400*1000*2200mm |
| Machine Weight | 220kg |
The grc spraying machine also requires an 11kW screw air compressor to provide stable air pressure. YG supplied a matching compressor as part of the package. This equipment is designed for continuous operation.
How Has This GRC Equipment Improved Production Workflow？
The factory installed the grc machine and tested it on a batch of facade panels. The results were immediate:
- Spraying speed increased by 300% compared to manual methods.
- Fiber distribution became perfectly uniform because the machine mixes glass fibers with slurry just before spraying.
- Material waste dropped significantly, as the grc spraying machine applies only the needed amount onto the mold.
The grc spray machine also handles complex shapes easily. Workers sprayed curved Roman columns and detailed relief patterns without clogging. The machine runs on 380V/50Hz power, which matches Indonesia’s grid perfectly.
Customization For Indonesia’s Hot And Humid Climate
YG engineers considered Indonesia’s tropical climate with high humidity and temperatures. Customizations included:
- Corrosion-resistant coating on all metal parts to prevent rust.
- Upgraded seals on the pumping system to handle local aggregate variations.
- Additional air filter for the compressor to reduce moisture in the spray line.
For the grc equipment, YG provided a mobile frame with wheels, allowing the factory to move the machine between different casting tables. The customer appreciated these practical modifications. The machine worked reliably even during the rainy season.
Tangible Results After Using The GRC Spraying Machine
After four weeks of production, the Indonesian factory recorded measurable improvements:
- Output increased by 250% – from 80 m² per day to 280 m² per day.
- Rejection rate dropped from 15% to under 3% because the machine ensures a consistent mix and uniform application.
- Labor cost reduced by 40% – only two workers are needed to operate the grc equipment, compared to six for manual mixing and spraying.
- Product strength improved by 30%, verified by compression tests on cured panels.
The owner confirmed that the grc spraying machine paid for itself within five months. He has since ordered a second unit for a new production line.
Smooth Cooperation And Final Conversion
YG provided clear video training and a detailed manual in English. Sea freight was arranged from China to Tanjung Perak port in Surabaya. Local technicians received remote support via WhatsApp for installation and commissioning.
The grc spraying machine was operational within two days and has run for over 300 hours without any major issues. For any manufacturer needing a reliable grc machine, YG offers proven solutions. Contact us today for a free quote.