Tunnel Type Shot Blasting

Tunnel Type Shot BlastingISO 9001:2015Factory DirectLifetime Support

MEC SHOT Airless Shot Blasting Machine – Tunnel Type is designed for high-production blast cleaning of structural steel, channels, angles, pipes, gratings, and fabricated components. Equipped with multiple blast wheels, roller conveyors, an abrasive recovery system, and a pulse jet dust collector, it efficiently removes rust and surface impurities. The machine delivers a uniform, high-quality surface finish up to Sa 2/Sa 2.5 standards (ISO 8501), making components ready for painting and coating. Its automated operation ensures consistent performance, efficiency, and easy handling.

Machine Type

Tunnel Type

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Technical Specification
S.No.	Particulars	AT-150-50-4W	AT-200-50-6W	AT-200-100-8W	AT-300-150-10W
1.	Passage Opening Width (mm) Height (mm)	1500 500	2000 500	2000 / 2500 1000 / 500	3000 1500
2.	No. of Blast Wheel	4	6	8	10
3.	Power of Blast Wheel	15 / 20 HP	15 / 20 HP	15 / 20 HP	15 / 20 HP
4.	Conveyor Speed (Variable)	0.5 - 3.0 Mtr./Min	0.5 - 3.0 Mtr./Min	0.5 - 3.0 Mtr./Min	0.5 - 3.0 Mtr./Min
5.	Roller Pitch	900	900	900	900
6.	Height of the machine	6500mm	6900mm	7700mm	8000
7.	Type of Dust Collector	Pleated Bag	Pleated Bag	Pleated Bag	Pleated Bag
8.	Blown-off Device	Provided	Provided	Provided	Provided
9.	Requirement of Pit	Yes	Yes	Yes	Yes

13 parameters

Industrial applications

Designed for precision blasting of repetitive production components where automation, consistency, and productivity are essential.

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Designed for precision blasting of repetitive production components where automation, consistency, and productivity are essential.

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Designed for precision blasting of repetitive production components where automation, consistency, and productivity are essential.

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The multi-station indexing design allows loading and unloading while blasting is in progress, improving production efficiency and reducing cycle times.

The machine is particularly suitable for medium-volume manufacturing environments requiring repeatable blasting quality and minimal operator intervention.

About the machine

In-depth technical and commercial information about the machine, its applications, and operating advantages.

Rotary Indexing Machine SB-SP-4

The SB-SP-4 Rotary Indexing Machine is developed for high-efficiency abrasive blasting of precision industrial components. Designed for deburring, descaling, surface preparation, and cleaning applications, the machine offers automated blasting with excellent repeatability and production consistency.

The system utilizes a rotary indexing table fitted with five rotating satellites. Components are loaded onto the satellites and automatically indexed through blasting stations where multiple blast guns provide complete surface coverage. This arrangement allows loading and unloading to continue while blasting operations are underway.

Operating on the suction blasting principle, abrasive media is drawn into the blast guns, mixed with compressed air, and projected onto the component surface. The recovered abrasive is automatically recycled for continuous operation.

Operating principle

Rotary Indexing Table — Automatically moves components through dedicated blasting stations.
Satellite Rotation System — Rotates the component to expose all surfaces evenly during blasting.
Horizontal Gun Reciprocation — Ensures uniform abrasive coverage across the component profile.
Continuous Abrasive Recovery — Recycles blasting media for efficient and uninterrupted operation.

Why buyers choose us

End-to-end support from machine selection through commissioning and after-sales service.

Custom Engineering

Configurations tailored to your component size, material, and surface-finish targets.

Quality Tested

Pre-dispatch performance checks for blasting efficiency, safety, and reliability.

Export Ready

Documentation and logistics support for domestic and international shipments.

Dedicated Support

Technical guidance for installation, operation, spares, and maintenance.

Frequently asked questions

Answers about this machine, installation, and support.

What is a Roll Etching Machine used for?

A Roll Etching Machine is used to generate controlled surface roughness and matte finishes on industrial rolls through abrasive blasting.

How is consistent roughness achieved?

The machine combines automatic roll rotation, nozzle reciprocation, and abrasive classification to maintain uniform blasting and stable Ra values.

How many blast guns are installed?

The machine is equipped with 4 blast guns for efficient and uniform blasting.

What is the maximum component size?

The machine can process components up to 300 mm diameter.

Does the machine have automatic component rotation?

Yes. The five-satellite indexing system automatically rotates components for complete blasting coverage.

Is abrasive media automatically recycled?

Yes. The blasting system includes automatic abrasive recovery and recycling for continuous operation.

What after-sales support is available?

MEC SHOT provides installation support, operator training, maintenance assistance, technical guidance, and spare parts support throughout the machine lifecycle.