{"id":58507,"date":"2025-07-24T03:31:17","date_gmt":"2025-07-24T03:31:17","guid":{"rendered":"https:\/\/shop.autooltech.com\/?post_type=product&p=58507"},"modified":"2026-05-15T06:42:02","modified_gmt":"2026-05-15T13:42:02","slug":"autool-hts728-walnut-sand-blaster-expert-grade-carbon-cleaning-machine","status":"publish","type":"product","link":"https:\/\/autoolstore.com\/cs\/product\/autool-hts728-walnut-sand-blaster-expert-grade-carbon-cleaning-machine\/","title":{"rendered":"AUTOOL HTS728 Walnut Blasting Machine Expert-Grade Carbon Cleaning Machine"},"content":{"rendered":"
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AUTOOL HTS728<\/div>\n

Product Overview<\/h2>\n

The AUTOOL HTS728 is a professional walnut blasting machine for engine carbon cleaning. It uses compressed air and fine 0.4-0.6mm walnut shell abrasive to clean combustion chambers, intake manifolds, and intake \/ exhaust valve areas while the built-in recovery structure and HEPA filter help recycle media and keep the workshop cleaner.<\/p>\n\n

\n 0.4-0.6mm Walnut Media<\/span>\n Combustion Chamber Cleaning<\/span>\n Intake \/ Valve Cleaning<\/span>\n HEPA Recovery<\/span>\n <\/div>\n\n
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1400W<\/span>Motor<\/span><\/div>\n
\u22643.5KG<\/span>Recommended Load<\/span><\/div>\n
>0.7MPa<\/span>Air Source<\/span><\/div>\n
3 Years<\/span>Warranty<\/span><\/div>\n <\/div>\n <\/div>\n\n
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\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n
\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n <\/div>\n <\/div>\n <\/section>\n\n
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Product Details<\/div>\n

Product Details<\/h2>\n

Confirm the abrasive size, loading amount, compressor performance, valve position, and safety preparation before using HTS728. These checks directly affect cleaning performance and engine safety.<\/p>\n <\/div>\n\n

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Use Fine Walnut Media<\/h3>\n

HTS728 is designed for 0.4-0.6mm walnut shell abrasive. Walnut sand is made from crushed walnut shells and is used as a physical abrasive for carbon cleaning when applied correctly.<\/p>\n <\/article>\n\n

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Do Not Overload Media<\/h3>\n

Do not add more than 3.5KG of walnut sand during use. The specification chart lists the blasting tank capacity as less than 4KG, so 3.5KG is the safer working limit.<\/p>\n <\/article>\n\n

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External Compressor Required<\/h3>\n

HTS728 requires an external air compressor. Prepare an air source above 0.7MPa with airflow above 0.4m\u00b3\/min, and use a dryer filter to reduce moisture and media clumping.<\/p>\n <\/article>\n\n

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Why Carbon Cleaning Matters<\/h3>\n

Carbon deposits form when incomplete combustion residue hardens around intake and cylinder areas. Buildup may affect air-fuel ratio, power output, fuel consumption, and idle stability.<\/p>\n <\/article>\n\n

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Service Interval Guidance<\/h3>\n

Cleaning frequency depends on mileage, engine design, fuel quality, and symptoms. The source material mentions carbon cleaning after approximately 40,000-50,000 km, or when vehicle condition requires service.<\/p>\n <\/article>\n\n

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Confirm Engine Safety<\/h3>\n

Before blasting, confirm the target valves are closed, seal uncleaned intake ports, and prepare safety goggles and a respirator to reduce dust exposure risk.<\/p>\n <\/article>\n <\/div>\n <\/section>\n\n

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Key Features<\/div>\n

Key Features<\/h2>\n

HTS728 combines fine walnut abrasive, combustion chamber support, intake and valve cleaning, HEPA filtration, media recovery, 5 adapters, and workshop-friendly mobility for professional carbon cleaning work.<\/p>\n <\/div>\n\n

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Combustion Chamber Cleaning<\/h3>\n

A key HTS728 upgrade is support for combustion chamber cleaning through the spark plug hole, helping remove carbon deposits with less disassembly when the vehicle is prepared correctly.<\/p>\n <\/article>\n\n

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Intake Manifold And Valve Cleaning<\/h3>\n

The machine supports sequential cleaning of intake manifold ports and intake \/ exhaust valve areas, helping remove stubborn buildup from common carbon deposit locations.<\/p>\n <\/article>\n\n

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0.4-0.6mm Fine Abrasive<\/h3>\n

The upgraded fine walnut media size helps provide more precise cleaning for engine carbon deposits while reducing the risk of harsh surface damage when used properly.<\/p>\n <\/article>\n\n

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1400W Motor With External Air Source<\/h3>\n

A 1400W motor works with an external compressor to support continuous abrasive impact force for cleaning carbon deposits from engine intake and combustion areas.<\/p>\n <\/article>\n\n

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HEPA Filter And Media Recovery<\/h3>\n

The equipment sprays and recovers at the same time. The HEPA filter and dust filter mesh help separate walnut abrasive from carbon deposits and support media reuse.<\/p>\n <\/article>\n\n

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Adapters And Mobile Workshop Design<\/h3>\n

The kit includes multiple adapters and blasting nozzles for different port shapes. A mobile body with handle and swivel casters makes the unit easier to move around the workshop.<\/p>\n <\/article>\n <\/div>\n\n

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\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n
\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n
\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n
\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n
\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n <\/div>\n <\/section>\n\n
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How It Works<\/div>\n

How It Works<\/h2>\n

HTS728 uses compressed air to accelerate walnut shell abrasive into carbon deposits, then recovers the mixture through the hose and filtration structure to improve workshop cleanliness and media reuse.<\/p>\n <\/div>\n\n

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Compressed Air Drives Media<\/h3>\n

The external compressor supplies the air pressure and airflow required to move walnut media through the blasting hose and nozzle.<\/p>\n <\/article>\n\n

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Walnut Shells Impact Carbon<\/h3>\n

Crushed walnut shells strike the carbon deposit surface at high speed and help remove buildup from intake, valve, and combustion chamber areas.<\/p>\n <\/article>\n\n

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Recovery Separates Dust And Media<\/h3>\n

The recovery hose pulls used media and carbon residue back into the machine, where the filter structure helps separate particles for cleaner operation.<\/p>\n <\/article>\n\n

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Air Mode Clears Residue<\/h3>\n

After blasting, use air blowing to help clear remaining walnut shell particles before engine reassembly.<\/p>\n <\/article>\n <\/div>\n\n

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\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n
\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n
\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n <\/div>\n <\/section>\n\n
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Specifications<\/div>\n

AUTOOL HTS728 Product Specifications<\/h2>\n

HTS728 is a 1400W walnut blasting machine with external compressor input, HEPA recovery, 0.4-0.6mm abrasive support, 10L storage tank capacity, and professional workshop dimensions.<\/p>\n <\/div>\n\n

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Power And Air Source<\/td><\/tr>\n
Product<\/td>AUTOOL HTS728 Intake Valve Walnut Blasting Machine<\/td><\/tr>\n
Power Supply<\/td>AC 110V \/ 220V<\/td><\/tr>\n
Main Power<\/td>1400W<\/td><\/tr>\n
Air Source<\/td>External air compressor required<\/td><\/tr>\n
Air Source Pressure<\/td>>0.7MPa<\/td><\/tr>\n
Air Source Flow Rate<\/td>>0.4m\u00b3\/min<\/td><\/tr>\n\n
Walnut Media<\/td><\/tr>\n
Recommended Media Size<\/td>0.4-0.6mm walnut shell abrasive<\/td><\/tr>\n
Blasting Tank Capacity<\/td><4KG<\/td><\/tr>\n
Recommended Loading Limit<\/td>Do not load more than 3.5KG during use<\/td><\/tr>\n
Storage Tank Capacity<\/td>10L<\/td><\/tr>\n
Media Reuse<\/td>5-10 times under normal conditions<\/td><\/tr>\n\n
Structure And Size<\/td><\/tr>\n
Hose Length<\/td>2.5m<\/td><\/tr>\n
Total Weight<\/td>50kg<\/td><\/tr>\n
Product Size<\/td>1110 \u00d7 590 \u00d7 535mm<\/td><\/tr>\n
Cleaning Areas<\/td>Combustion chamber, intake manifold, intake valve area, exhaust valve area<\/td><\/tr>\n
Filtration<\/td>HEPA filter and dust filter mesh recovery structure<\/td><\/tr>\n
Warranty<\/td>3 years for eligible non-human damage cases<\/td><\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n
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\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n
\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n <\/div>\n <\/div>\n
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\n Power And Air Source<\/summary>\n
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Product<\/span>AUTOOL HTS728 Intake Valve Walnut Blasting Machine<\/strong><\/div>\n
Power Supply<\/span>AC 110V \/ 220V<\/strong><\/div>\n
Main Power<\/span>1400W<\/strong><\/div>\n
Air Source<\/span>External air compressor required<\/strong><\/div>\n
Air Source Pressure<\/span>>0.7MPa<\/strong><\/div>\n
Air Source Flow Rate<\/span>>0.4m\u00b3\/min<\/strong><\/div>\n <\/div>\n <\/details>\n
\n Walnut Media<\/summary>\n
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Recommended Media Size<\/span>0.4-0.6mm walnut shell abrasive<\/strong><\/div>\n
Blasting Tank Capacity<\/span><4KG<\/strong><\/div>\n
Recommended Loading Limit<\/span>Do not load more than 3.5KG during use<\/strong><\/div>\n
Storage Tank Capacity<\/span>10L<\/strong><\/div>\n
Media Reuse<\/span>5-10 times under normal conditions<\/strong><\/div>\n <\/div>\n <\/details>\n
\n Structure And Size<\/summary>\n
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Hose Length<\/span>2.5m<\/strong><\/div>\n
Total Weight<\/span>50kg<\/strong><\/div>\n
Product Size<\/span>1110 \u00d7 590 \u00d7 535mm<\/strong><\/div>\n
Cleaning Areas<\/span>Combustion chamber, intake manifold, intake valve area, exhaust valve area<\/strong><\/div>\n
Filtration<\/span>HEPA filter and dust filter mesh recovery structure<\/strong><\/div>\n
Warranty<\/span>3 years for eligible non-human damage cases<\/strong><\/div>\n <\/div>\n <\/details>\n <\/div>\n <\/section>\n\n\n\n
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How To Use<\/div>\n

How To Use<\/h2>\n

Follow the setup, media loading, vehicle preparation, intake cleaning, combustion chamber cleaning, and after-cleaning steps. Always confirm valve closure, port sealing, air pressure, media size, and PPE before blasting.<\/p>\n <\/div>\n

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1. Set Up The Machine<\/h3>\n