Cym Materiales SA manufactures metal abrasive cleaners for on site or fixed installations (blast rooms) with cleaning capacities from 1.5 ton to more than 200 ton hour, adapting to the needs of each customer.

Of robust construction, specially designed to perform cleaning and reloading tasks of heavy abrasives (carbon or stainless steel shot) removing all types of dust, shells, worn abrasives and other contaminants from the good abrasive used in the shot blasting process.

Due to its great importance and decisive influence on the control of the costs associated with the blasting process, the cleaning and separation system of dusts and fine abrasive becomes a fundamental part of the blasting process. However, it does not always receive its due analysis and consideration, thus wasting an unbeatable opportunity to optimize the process, reduce costs and achieve higher quality results. The shot blast cleaning system basically has two fundamental functions:

• Conditioning and cleaning the abrasive. The cleaning system recovers and separates the useful abrasive for reuse, while discarding all contaminants generated during the process. It removes the fine and coarse contaminants (dust, flake, fine grit, sand, screws, etc.) generated by the blasting process from the blast media circulating inside the machine. In addition, the system removes the abrasive particles that, due to their tiny size, no longer have the mass necessary to impact the parts with sufficient energy for effective blasting. The presence of coarse contaminants in the mixture could seriously damage the blasting nozzle and even some of the parts being blasted.
• Store the abrasive to be used to refill the blasting equipment.

It is important to highlight that, in surface preparation processes for paint application, fine contaminants (powders, flakes, etc.) that are not removed from the shot blasting mixture can remain deposited between the peaks and valleys on the surface of the blasted part. When the paint is applied, the dust is trapped between the paint and the steel, reducing the contact adhesion that both surfaces should have. If the contaminant also penetrates the paint, it can produce corrosion cells in the steel, increasing the likelihood of premature coating failure.

It has been proven that for shot blasting and/or desanding of castings, the presence of 2% sand in the blast media considerably increases the wear of the parts compared to the same process with contaminant-free media. This shows the importance of a well-regulated blast cleaning system and its decisive influence on equipment maintenance costs. A well-regulated cleaning system allows:

• Keep operating costs under control
• Achieve contaminant free shot blasted parts
• Maintain controlled roughness profiles

Three lines of abrasive cleaning equipment available

• ARC ECO
• ARC Compact
• ARC Stationary

ARC-ECO

Metal abrasive cleaning system of economical construction to allow easy transportation to the site with a cleaning capacity of 1.5 to 2.5 tons/hour. The abrasive is manually loaded into the cleaning system and after passing through the cleaning system is deposited in containers that are located at the bottom of the equipment. The coarse debris is retained by a sieve mounted for this purpose and the fine debris (dust) is captured by a cartridge filter mounted on the unit.

The equipment is composed of

• Abrasive Purifier
• Dust vacuum cleaner
• Support structure with wheels for manual translation
• Control panel adapted according to customer's needs

ARC-Compact and ARC-Stationary

The ARC-Compact and ARC-Stationary cleaning systems are designed to perform the cleaning and reloading of steel shot, either in fixed equipment in the plant or in the compact version mounted on a frame that allows an easy transfer to the site. Cleaning capacity of 10 ton/hour (according to need we have developed cleaners with capacities higher than 200 ton/hour).

The abrasive to be recovered is loaded into a hopper located at the base of the bucket elevator, which then discharges into the shot blast cleaner in two cleaning stages: one mechanical by sieving and the second by air flow. The coarse debris exits the circuit into a container mounted for this purpose and the fine debris is captured by a cartridge filter mounted on the unit. The cleaned and recovered abrasive is deposited in a storage silo ready for reloading the pressure blasting equipment.

The ARC-Compact and ARC-Stationary cleaning systems consist of:

• Equipment support base for loading with forklift (ARC Compact version only)
• Bucket elevator with funnel for abrasive loading
• Abrasive purifier
• Abrasive accumulation silo of
• 250 lts (1200 kilos) of load capacity
• 500 lts (2400 kilos) load capacity
• Dust vacuum cleaner
• Command panel

Recommended abrasives in shot blasting processes:

Compressed air particle blasting equipment works indistinctly with any type of abrasive (metallic, mineral, plastic), allowing the selection of the most suitable for each type of work.  

In the case of closed enclosures, it is extremely advantageous to use metallic abrasive blasting media compared to other abrasives, since the following advantages stand out:

• Higher productivity
• Lower abrasive cost per blasted surface.
• Reduced maintenance costs.
• Better quality of work performed (homogeneity, roughness, cleanliness).
• Less waste and dust generation
• No health risks for operators
• Lower investment in dust collection systems
• Less environmental pollution
• Better visibility for operators

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