AUTOOL Walnut Blasting Machine for Intake Valve Carbon Cleaning

$358.00 – $2199.00

  • Intake Manifold, Intake and Exhaust Valve Cleaning: Efficiently removes carbon deposits from the intake manifold and valves without damaging the engine.
  • Combustion Chamber Cleaning ( Only HTS728 can): Designed for HTS728, removes carbon deposits from the combustion chamber.

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The AUTOOL walnut blasting machine is a professional-grade tool designed for cleaning stubborn carbon deposits in the intake manifold, intake/exhaust valves, and combustion chamber. Unlike chemical cleaners, walnut blasting uses eco-friendly walnut shell media, ensuring thorough cleaning without damaging sensitive engine components.

Working Principle

AUTOOL walnut shell sand blaster uses compressed air to spray walnut shells at high speed into the engine intake manifold. The walnut particles continuously tumble and impact inside the manifold, effectively removing carbon deposits from the intake valves and cylinder walls. Afterwards, the device uses a special connector and suction pipe to recover the walnut shells together with the loosened carbon deposits into the storage tank, achieving an efficient, safe, and residue-free cleaning process.

Walnut Blasting Machine Comparison: Which One Fits You Best?

How to Choose HTS Series Walnut Blaster?

I need to clean carbon deposits in the combustion chamber.

Only the AUTOOL HTS728 walnut blaster supports cleaning carbon deposits in the combustion chamber. Other models do not support this function.

I need high-efficiency particulate filtration (HEPA).

If you require high-efficiency particle filtration, we recommend the AUTOOL HTS728 or HTS678 walnut blaster.

I need to regulate the pressure.

HTS558, HTS518, and HTS559 do not support pressure adjustment and do not have a pressure gauge. We recommend choosing HTS678 or HTS728, which allow you to freely adjust the output pressure according to your cleaning needs, from gentle cleaning to high-power sandblasting.

How to choose an air compressor?

Air pressure up to 0.7mpa, 6bar or more air pressure.

We recommend using an air compressor equipped with a dryer filter to effectively prevent moisture buildup, which can cause walnut shell media to clump and result in poor blasting performance.

What is the difference in the walnut sand used?

HTS558, HTS518, HTS519, and HTS678 can use walnut shells with a particle size of 0.6–1.2 mm, while HTS728 uses finer walnut shells with a particle size of 0.4–0.6 mm, offering smaller, more precise abrasive particles for delicate cleaning.

How many kilograms of walnut shell media are required to start the machine?

The walnut blaster requires 2–3 kg of walnut shell media to operate. The walnut media can be recycled and reused approximately 5–10 times.

⚠️ Must Read Before Use

  • High-precision engine systems are very sensitive to foreign particles in the intake manifold, such as the BMW Valvetronic system. Therefore, before cleaning carbon deposits in the intake manifold, the engine should be turned off, and the crankshaft rotated to close the intake valves. The AUTOOL walnut sandblaster cleans one intake port at a time, so a six-cylinder engine requires cleaning each of the six ports individually.
  • The package does not include an air compressor, which must be purchased separately.
  • Any walnut shell residue left in the intake manifold will turn to ash under high temperatures once the engine starts, so there is no need for concern.

🔔 Warm Tips

  • The walnut sand blasting machine is not suitable for cleaning the car chassis. If you need to clean the chassis, we recommend using a dry ice cleaning machine.

AUTOOL Walnut Shell Blaster Machine Functions

  • Intake Manifold Cleaning: The sandblasting method efficiently removes carbon deposits from the engine’s intake manifold, ensuring a thorough and effective cleaning.
  • Intake/Exhaust Valve Cleaning: Following the sandblasting sequence, this process thoroughly cleans carbon deposits from the valves without causing any damage to the engine.
  • Multiple Adapters: Comes with adapters, compatible with a wide range of vehicle models.
  • External Air Source Design: Powered by a high-performance motor using an external air source, the machine delivers continuous power. This increases the impact force of the walnut shell abrasive, ensuring complete removal of carbon deposits from engine pipes.
  • Built-in Dust Filter: Spraying and recovery are performed simultaneously. The filter separates walnut shell abrasive from carbon deposits, allowing the abrasive to be reused while preventing residual particles from damaging the exhaust system at high temperatures.
  • Integrated Design: The walnut shell abrasive is automatically recycled within the machine, eliminating the need for manual recovery and saving time and effort.
  • User-Friendly: Equipped with 360° swivel casters for easy mobility and operation.
  • 3-Year Warranty: For damage caused by non-human factors, we provide free replacement parts within 3 years.

AUTOOL Walnut Shell Sand Blaster Quick Search

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 This product has multiple variants. The options may be chosen on the product page Quick View

1KG Walnut Sand For AUTOOL HTS558 and HTS518

$15.90 – $25.90
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 This product has multiple variants. The options may be chosen on the product page Quick View

18 PCS Adapter connectors for use with HTS558

$40.00
HOT
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 This product has multiple variants. The options may be chosen on the product page Quick View

AUTOOL HTS558 Walnut Blaster Carbon Deposition Engine Cleaner Intake Pipe Valve Decarbon Cleaner

$358.00 – $388.00
-32%
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 This product has multiple variants. The options may be chosen on the product page Quick View

AUTOOL HTS678 Walnut Sand Blaster Cleaner Car Engine Carbon Deposition Cleaning

$49.00 – $980.00
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 This product has multiple variants. The options may be chosen on the product page Quick View

AUTOOL HTS728 Walnut Sand Blaster Expert-Grade Carbon Cleaning Machine

$2199.00
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 This product has multiple variants. The options may be chosen on the product page Quick View

AUTOOL HTS518 Car Engine Carbon Deposition Cleaner Intake Pipe Valve Cleaning Machine Decarbonizing Auto Decarbon Wash

$539.00
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 This product has multiple variants. The options may be chosen on the product page Quick View

AUTOOL HTS559 Walnut Blasting Machine Sandblaster

$509.00

FAQs

Walnut sand cleaning machine does not sandblast
  • Please check if there is walnut sand abrasive in the abrasive outlet tube of the blasting nozzle.
  • You can block the blasting nozzle with a cloth and spray several times to use the air pressure to backflush and clear the blasting nozzle tube. Then remove the cloth and spray into a waste collection bucket to see if the walnut sand abrasive is being discharged normally again.
  • During normal use, try pressing the spray button intermittently. This will provide stronger cleaning power and better cleaning results.
  • If the walnut sand abrasive is clogged at the blasting nozzle, please disassemble the blasting nozzle and manually clear the blockage.
  • If the issue persists and it remains stuck, we will send you a new blasting nozzle to completely resolve the problem.
The spray gun switch fails and gas will automatically spray out.
  • The blasting nozzle’s switch part needs to be replaced. I will send you a new switch part. After replacement, the blasting nozzle air leakage issue will be resolved.
Press the recycling start switch on the device, but it does not run and the walnut sand cannot be recycled.
  • Please open the machine casing and use a multimeter to measure the input and output voltage of the wires connected to the switch button. This will help determine whether the issue is with the switch button not functioning or with a motor fault.
The wheel of the walnut blaster machine was broken when I received it.
  • We sincerely apologize for the inconvenience. It seems that the damage to the wheels was caused by a logistics issue. Please provide photos of the damaged wheels so we can assess how many wheels are affected. We will send you new wheels for replacement

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Delivery

Customer Reviews

Based on 1 review
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Sarah K.
Cleaning effect is very good

It only took 15 minutes to complete the cleaning of the intake valve. However, HTS678 does not support cleaning the carbon deposits in the combustion chamber, only HTS728 supports

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