Product Overview
The Grit Blasting Machine is an automated glass surface-treatment system for producing frosted, matte, and decorative finishes by projecting abrasive media onto flat glass. It combines PLC-controlled conveying and blasting with automatic and manual spray functions, allowing continuous processing as well as localized treatment. The standard configuration includes three automatic spray guns and one manual spray gun. Machine width and working capacity are available in multiple configurations for different production requirements.
Technical Specifications
|
Model |
SG1600 |
SG2000 |
SG2500 |
|
Supply Voltage |
380 V |
380 V |
380 V |
|
Installed Power |
3.5 kW |
3.5 kW |
3.5 kW |
|
Max. Glass Width |
1600 mm |
2000 mm |
2500 mm |
|
Working Capacity |
20–30 m²/h |
28–36 m²/h |
35–46 m²/h |
|
Machine Dimensions |
4700 × 1500 × 2300 mm |
6800 × 1500 × 2800 mm |
6800 × 1500 × 3300 mm |
|
Machine Weight |
1000 kg |
1100 kg |
1200 kg |
Machine Configuration
The standard system integrates:
- PLC and touchscreen control
- Three automatic spray guns
- One manual spray gun
- Glass conveying system
- Enclosed blasting chamber
- Abrasive recovery and separation system
- Dust collection system
- Wear-resistant internal protection
- Electrical control and safety components
Boron-carbide or other wear-resistant nozzles can be selected according to abrasive type and operating duty.
Blasting Process
Glass is conveyed through an enclosed blasting chamber while abrasive media is projected onto the surface through controlled spray guns. The blasting intensity and exposure are adjusted according to the required surface appearance and glass characteristics.
The automatic mode is designed for continuous production and repeatable coverage. The manual gun can be used for localized treatment, edge areas, corrections, or small-batch work without interrupting the main production process.
Abrasive Media & Dust Collection
Abrasive selection directly affects surface roughness, frosting depth, appearance, and media consumption. The machine can be configured according to the required glass finish and abrasive characteristics.
Blasting generates fine particulate matter, so the machine should operate with an enclosed blasting chamber and dedicated dust-collection system. The dust collector separates airborne particles from reusable abrasive and helps prevent dust from escaping into the workshop. Automatic blasting equipment commonly uses filter-type or cyclone-assisted dust collection, with pulse or reverse-air cleaning available for continuous operation.
Blasting Parameters
Key process variables include conveyor speed, abrasive feed, blasting pressure, spray-gun position, gun movement, and blasting passes. These parameters determine the final surface density and visual consistency.
A variable-frequency-controlled conveying system allows the processing speed to be adjusted for different production requirements. Individual or zoned gun control can also be specified where different blasting areas require independent treatment.
Applications
The machine is suitable for industrial production of:
- Frosted and matte architectural glass
- Decorative glass panels
- Shower-door glass
- Furniture and interior glass
- Appliance glass
- Patterned or partially blasted glass
- Customized decorative surface treatments
For patterned or localized blasting, masking or process-specific tooling may be incorporated according to the required design.
Customization
The Grit Blasting Machine can be configured according to maximum glass width, glass thickness, production capacity, blasting-gun arrangement, abrasive type, conveying method, dust-collection capacity, and electrical standard.
Available configurations can also include different automatic/manual gun combinations, independent blasting zones, customized chamber dimensions, and customer-specified control components. For project quotations, the required glass size range, thickness, target finish, expected hourly output, abrasive specification, and local power supply should be confirmed before final machine design.
Quality Control
Before shipment, the machine should be checked for conveyor operation, PLC and electrical functions, spray-gun movement, abrasive circulation, dust extraction, safety interlocks, and overall machine operation.
For production acceptance, glass samples can be processed using the customer's specified dimensions, abrasive, and target finish. Surface appearance, blasting uniformity, processing capacity, and equipment stability can then be verified against the agreed technical requirements.
FAQ
Q: What glass surface condition is required before grit blasting?
A: Glass should be clean, dry, and free from oil, silicone, dust, labels, and other contaminants before blasting. Surface contamination can cause uneven abrasive action and visible defects in the finished matte or frosted surface.
Q: Can the machine process both clear and tempered glass?
A: Yes. The machine can be used for different types of flat glass, including clear and tempered glass, provided the workpiece dimensions and thickness are within the selected machine's operating range.
Q: How is the desired frosting depth or surface roughness controlled?
A: The finish is controlled through a combination of abrasive grade, blasting pressure, abrasive feed rate, conveyor speed, and number of passes. A production sample is recommended when a specific roughness, opacity, or visual texture is required, allowing the process settings to be established before batch production.
Q: What abrasive materials can be used with the machine?
A: The suitable abrasive depends on the required glass finish and the machine's abrasive-handling configuration. Common glass blasting media include aluminum oxide and silicon carbide, with particle size selected according to the required surface effect. The abrasive specification should be confirmed before ordering to ensure compatibility with the nozzle, recovery system, and dust collector.
Q: Which components normally require periodic replacement?
A: The main consumable or wear components are typically blast nozzles, abrasive hoses, seals, protective liners, filters, and other media-contact parts. Actual service life depends on abrasive hardness, operating hours, blasting pressure, and maintenance conditions. A recommended spare-parts list can be supplied with the machine for planned maintenance.
Q: What site conditions are required for machine installation?
A: The installation area should provide sufficient floor loading capacity, working clearance, electrical power, compressed air, ventilation, and dust-extraction space. The machine should be installed on a level industrial floor with adequate access for glass loading, unloading, maintenance, and replacement of wear components.
Q: What is the delivery time for the Grit Blasting Machine?
A: The delivery time is 60–90 days after order confirmation. The schedule covers machine manufacturing, assembly, testing, and preparation for shipment. The final delivery schedule is confirmed according to the agreed technical specifications and order requirements.
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