P7-300 Portable Sand Blasting Machine – Heavy-Duty Abrasive Blasting Solution
The P7-300 portable sand blasting machine is a powerful pressure blasting system designed for industrial surface preparation, cleaning, rust removal, paint stripping, corrosion removal, polishing, deburring, and finishing applications. With a 300 kg abrasive storage capacity, this portable sand blasting machine is suitable for users who need greater abrasive capacity than a compact portable blaster while still requiring the flexibility of mobile equipment.
Designed for demanding industrial environments, the portable sand blasting machine uses compressed air to propel suitable abrasive media through a sand blasting hose and nozzle at high velocity. This enables operators to clean and prepare metal surfaces, remove unwanted coatings, and create the required surface profile before painting or protective coating.
The P7-300 is available in portable configurations with or without remote control, allowing users to select an operating arrangement according to their application and equipment requirements.
What Is a P7-300 Portable Sand Blasting Machine?
The P7-300 portable sand blasting machine is a pressure-type abrasive blasting machine equipped with a 300 kg storage capacity. The pressure vessel stores abrasive media and, when pressurized with compressed air, delivers the abrasive through the blasting system toward the nozzle.
Its portable design makes it suitable for workshops, fabrication yards, construction sites, maintenance operations, foundries, and other locations where the blasting equipment needs to be moved between work areas.
Unlike fixed blasting chambers, a portable sand blaster can be taken closer to large or stationary components. This can reduce the need to move heavy workpieces and provide greater flexibility for on-site surface preparation.
How Does the P7-300 Portable Sand Blasting Machine Work?
The operating principle of the portable sand blasting machine is based on pressure blasting. The process can be summarized as follows:
- Select the Abrasive Media: Choose an abrasive appropriate for the workpiece and required surface finish. Depending on the application, users may select steel grit, steel shot, garnet, aluminum oxide, copper slag, glass beads, silicon carbide, or other compatible abrasive materials.
- Load the Pressure Vessel: The selected abrasive is placed into the pressure pot. A suitable mesh or screen should be used during loading to prevent oversized particles from entering the system and potentially blocking the blasting hose.
- Start the Air Compressor: Compressed air is supplied to the blasting system. The P7-300 is specified for approximately 55–75 CFM at 80 PSI, depending on the operating configuration.
- Pressurize the Abrasive Tank: Compressed air enters the pressure vessel and creates the force required to move abrasive media toward the mixing section.
- Control Abrasive Flow: The abrasive combines with compressed air before entering the blast hose. The machine's control arrangement regulates the blasting operation.
- Direct Abrasive Through the Nozzle: The abrasive travels through the blasting hose and exits through the nozzle at high velocity. The resulting impact removes contaminants and prepares the surface.
- Stop the Blasting Operation: After blasting is complete, the pressure in the vessel should be released according to the machine's operating procedure before the equipment is opened or serviced.
Key Advantages of P7-300 Portable Sand Blasting Machine
300 kg Abrasive Capacity: The 300 kg abrasive storage capacity provides greater media-holding capability for users who require longer blasting cycles or larger-scale surface preparation.
- Portable Construction: The mobile configuration allows the portable sand blaster to be moved to different work areas rather than requiring every component to be transported to a fixed blasting facility.
- High Cleaning Productivity: The listed cleaning rate is approximately 5–7 square metres per hour, although actual productivity depends on abrasive selection, surface condition, nozzle size, air supply, and operator technique.
- Remote and Non-Remote Options: The P7-300 is available as a portable machine with or without a remote control valve, giving customers flexibility when selecting the appropriate configuration.
- Durable Nozzle Options: The machine supports tungsten carbide and boron carbide nozzles in listed sizes from 5 to 10 mm.
- Versatile Abrasive Compatibility: The machine can be configured for use with various suitable abrasive media, allowing it to support different cleaning, preparation, and finishing requirements.
Abrasive Media for P7-300 Portable Sand Blasting Machine
Selecting the correct abrasive is essential for achieving the desired blasting result. Common abrasive media include:
- Steel shot
- Steel grit
- Garnet
- Aluminum oxide
- Copper slag
- Glass beads
- Silicon carbide
- Other compatible abrasive media
The P7-300 lists a recommended abrasive size of 25–80 mesh. The correct media should always be selected according to the workpiece material, desired surface profile, blasting objective, and equipment specifications.
Although the equipment is commonly called a portable sand blasting machine, modern abrasive blasting applications frequently use alternative media instead of conventional quartz silica sand. Media selection should also consider applicable occupational health and safety requirements.
P7-300 Air Compressor Requirement
The air compressor is one of the most important components of a portable sand blasting machine system. The P7-300 specifies approximately 55–75 CFM at 80 PSI.
An adequately sized compressor should be capable of continuously supplying the required airflow for the selected nozzle. If the reciprocating air compressor cannot maintain sufficient airflow, blasting efficiency and abrasive velocity may decrease.
When selecting a compressor, consider:
- CFM output
- Operating pressure
- Nozzle diameter
- Blasting duration
- Abrasive type
- Required productivity
- Compressor duty cycle
P7-300 Blast Hose and Nozzle
The blast hose carries the mixture of compressed air and abrasive from the pressure pot to the blasting nozzle. A suitable abrasive blasting hose should have appropriate abrasion resistance, flexibility, internal diameter, and pressure rating.
The P7-300 is specified with tungsten carbide and boron carbide nozzle options, with nozzle sizes of 5–10 mm.
Choosing the correct combination of blast hose, hose coupling, nozzle holder, nozzle, abrasive, and compressor is important for efficient blasting performance.
P7-300 Portable Sand Blasting Machine Price
The P7-300 portable sand blasting machine price is listed in an indicative range of ₹40,000–₹1,00,000. Final pricing depends on the selected configuration, dispatch location, and optional equipment.
Customers can request a formal quotation based on their required machine configuration and accessories.
For an accurate quotation, provide details such as:
- Required machine capacity
- Remote or non-remote configuration
- Abrasive media
- Nozzle size
- Blast hose requirements
- Quantity
- Delivery location
- Additional accessories
How to Choose the Right Portable Sand Blasting Machine
Before purchasing a portable sand blasting machine, consider the following factors:
- Tank capacity: Select the abrasive storage capacity according to the size and duration of your blasting operation.
- Abrasive media: Match the machine and nozzle to the selected abrasive.
- Compressor capacity: Ensure adequate CFM and pressure for the required nozzle.
- Nozzle size: Select a sand blasting nozzle according to the desired productivity and compressor capability.
- Hose specification: Use an appropriate abrasion-resistant blast hose.
- Control system: Decide whether a remote or non-remote configuration is more suitable.
- Application: Consider whether the machine will be used for fabrication, maintenance, rust removal, coating preparation, casting cleaning, or construction.
- Safety: Use suitable blasting PPE, breathing-air equipment, ventilation, and dust-control measures.
Portable Sand Blasting Machine Manufacturer in India
We are a P7-300 portable sand blasting machine manufacturer in India and a supplier of portable sand blasting machines P7-150, P7-500, and P7-1000 worldwide. offering abrasive blasting equipment for industrial surface preparation, cleaning, and finishing applications.
Our equipment is manufactured in India and can be supplied according to different customer requirements. The P7-300 is listed with a 15–20 day delivery period, subject to order specifications and configuration.
We also offer related products and equipment including portable sand blasters, sand blasting machines, wet blasting machines, sand blasting cabinets, blasting nozzles, deadman handles, mixing tubes, abrasive media, and sand blasting machine spare parts.
Why Choose the P7-300 Portable Sand Blasting Machine?
The P7-300 portable sand blasting machine combines a 300 kg abrasive capacity, portable design, 5–7 sq. m/hr listed cleaning rate, 55–75 CFM air requirement, and 5–10 mm nozzle options into a versatile abrasive blasting solution.
It is suitable for businesses and contractors requiring a mobile machine for rust removal, paint stripping, corrosion cleaning, metal surface preparation, deburring, polishing, finishing, fabrication, construction, and industrial maintenance.
For optimum results, the machine should be selected and configured according to the abrasive media, compressor capacity, nozzle size, blasting hose, operating pressure, industrial dust collector, surface condition, and required finish. Proper equipment selection and safe operating practices can help achieve consistent and efficient abrasive blasting performance.
