AUTOOL HTS728 Walnut Sand Blaster Expert-Grade Carbon Cleaning Machine

$1899.00

  • Built-in Pressure Pump: High-pressure blasting for efficient cleaning.
  • 1500W Powerful Motor: Strong suction and stable performance.
  • No Disassembly Needed: Cleans combustion chamber, intake manifold, and valves directly.
  • HEPA Filter System: Separates carbon and walnut media for reuse.
  • 23PCS Adapters: Fits almost all car models.
  • Fine Walnut Media (0.4–0.6mm): More precise and safer cleaning.

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AUTOOL HTS728 Intake Valve Walnut Sand Blaster Expert-Grade Carbon Cleaning Machine for Professional Use 2025 Newest Model

The AUTOOL HTS728 is a high-efficiency Walnut Sand Blaster designed to clean carbon deposits in the engine combustion chamber and intake system. It uses high-pressure air to spray walnut shells with a particle size of 0.4–0.6mm into the combustion chamber, intake manifold, and valve areas. The high-speed sand flow hits the surfaces to remove stubborn carbon deposits without damage and without disassembly.

The walnut blasting machine has a powerful 1500W motor and a large-capacity sand blasting system. This greatly improves continuous sand output and cleaning efficiency. It has a built-in high-efficiency HEPA filter that separates sand and carbon particles. This allows sand recycling, reduces material waste, and is environmentally friendly. The AUTOOL HTS728 is easy to operate and cleans effectively. It is an ideal tool for professional workshops.

✅What Is Walnut Sand?
  • Walnut sand is made from walnut shells, which are processed through strict screening and classification after being broken. It is a walnut extract and serves as a metal polishing medium. Walnut sand has high hardness, high-pressure resistance, and wear resistance, with a microporous surface. It provides strong adsorption and sewage interception ability, and it does not cause corrosion or pollution.
  • Using walnut sand as an abrasive will not damage the workpiece’s surface or harm the engine when cleaning carbon deposits. The cleaning effect is remarkable, and the cost is low.
  • The walnut shell abrasive size should be between 0.4~0.6 mm. Under normal conditions, walnut shell abrasive can be reused 5~10 times.

✅What Is Carbon Deposition?
  • Some hydrocarbon olefin residues attach to the engine intake and cylinder when the fuel does not burn completely. It residues change into a hard black shell in high-temperature conditions, called carbon deposition.

✅Why Need Clean Carbon Deposition?
  • Carbon deposition will decrease the air-fuel ratio, cut down engine output power, increase fuel consumption, engine drastic shake on idle status all the thing will hurt the engine deeply. So normally we should clean carbon deposition after every 40000-50000 kilometer trip.

✅Air Compressor Configuration
  • 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.

⚠️Walnut Sand Blaster Warm Tips
  • Typically, clean each manifold port for about 2 minutes, then stop to check the cleaning results.
  • Ensure that all uncleaned manifold ports are sealed before cleaning to prevent walnut shell abrasive from entering unintended areas.
  • Do not clean a manifold port if the valves are not closed. When reaching such a port, rotate the crankshaft to close the valves before proceeding.
  • After carbon removal, use an air blow gun to blow out any remaining walnut shell abrasive particles.

📔AUTOOL HTS728 Walnut Blaster Manual

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What Is The Difference Between Auto Engine Decarbonizer Machines?

AUTOOL Walnut Blaster Machine Quick Search

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1KG Walnut Sand For AUTOOL HTS558 and HTS518

$15.90 – $25.90
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AUTOOL HTS558 Walnut Blaster Carbon Deposition Engine Cleaner Intake Pipe Valve Decarbon Cleaner

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AUTOOL HTS559 Walnut Blasting Machine Sandblaster

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

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AUTOOL HTS678 Walnut Sand Blaster Cleaner Car Engine Carbon Deposition Cleaning

Original price was: $1440.00.Current price is: $980.00.

AUTOOL HTS728 Walnut Sand Blaster Features

  • Engine Combustion Chamber Cleaning: Blasts cleaning directly into the combustion chamber via the spark plug hole, eliminating the need for disassembly.
  • Intake Manifold Cleaning: Sequentially cleans each intake manifold using blasting, ensuring thorough carbon removal.
  • Intake/Exhaust Valve Cleaning: Cleans intake and exhaust valves sequentially with blasting, without the need for disassembly.
  • Multiple Adapters: Equipped with 23 adapters, supporting a variety of vehicle models.
  • External Air Source Design: The machine is powered by a 1500W high-performance motor, which uses an external air source to provide continuous power. This enhances the impact force of the walnut shell abrasive, ensuring thorough removal of carbon deposits from the engine pipes.
  • Built-in HEPA Filter: The equipment performs spraying and recovery simultaneously. The filter separates the walnut shell abrasive from the carbon deposits, ensuring that the walnut shell abrasive can be reused, while preventing residual particles from damaging the exhaust system at high temperatures.
  • Integrated Design: The walnut shell abrasive is recycled within the equipment, and no manual recovery is required, saving time and effort.
  • User-Friendly: Equipped with a swivel caster that can rotate 360°, making it easy to move and operate.
  • 3-Year Warranty: For damage caused by non-human factors, we promise to resend parts for free within 3 years.

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How To Use the AUTOOL HTS728 Walnut Sand Blaster?

1. Setup

  • Place the machine in the working area.
  • Take out the recovery hose and connect it to the recovery port.
  • Attach the elbow connector to the recovery hose.
  • Connect the sandblasting tube to the spray gun handle.
  • Connect the air supply to the air inlet.
  • Plug in the power cord and turn on the power switch.

2. Loading Walnut Media

  • Make sure the recovery mode is OFF.
  • Turn ON the loading mode.
  • Add no more than 3.5KG of walnut sand (0.4–0.6mm).
  • Brush leftover sand into the loading port if needed.
  • Close the top lid and wear safety goggles.
  • Turn OFF the loading mode – the pressure will build up (>0.7MPa).

3. Vehicle Preparation

  • Remove the spark plugs and intake manifold.
  • Check valve positions – make sure valves are closed.
  • Seal other intake ports to prevent sand entry.

4. Intake Cleaning

  • Insert the sandblasting tube into the intake port.
  • Connect the recovery hose to the port and ensure a tight seal.
  • Turn ON the recovery mode.
  • Open the spray gun valve and adjust direction/depth to clean.
  • Clean each port for about 2 minutes.
  • Use an air gun to blow out remaining sand.

5. Combustion Chamber Cleaning

  • Rotate the crankshaft to close valves.
  • Insert the spray gun tube into the elbow connector.
  • Connect the combined hose/gun to the combustion chamber port.
  • Ensure sealing and start sandblasting.

6. After Cleaning

  • Turn off all switches.
  • Disconnect hoses and power supply.
  • Clean and store the equipment properly.

Walnut Sand Blaster Usage Tips

  • Firstly, wear safety goggles during operation to ensure safety. In addition, this will help protect your eyes from debris and any potential hazards.
  • The walnut shell abrasive size should be between 0.4~0.6 mm. Under normal conditions, walnut shell abrasive can be reused 5~10 times.

Packing List

Walnut Blasting Machine Tool FAQs:

What Is a Carbon Cleaning Walnut Blaster?

A walnut shell sand blaster is a specialized tool that cleans the intake and valves of a car engine using crushed walnut shells as abrasive. It helps remove carbon deposits during automotive maintenance to prevent engine problems.

How Does a Walnut Blasting Machine Work?

The walnut blasting machine uses compressed air to shoot crushed walnut shells through a nozzle at high speed. The shells hit the surface of engine parts and remove carbon buildup. As they blast, the shells break into small pieces. This makes them a gentle and effective abrasive for cleaning delicate engine components.

Is a Walnut Sandblaster Machine Safe To Use on All Types of Engines?

Yes, walnut blasting is a safe and effective way to clean intake and valves on gasoline and diesel engines. Removing the valve cover is important to access the engine parts and clean them properly. However, it’s best to consult a professional before using the machine on your specific vehicle.

Are There Any Potential Risks Associated With Using Intake Valve Walnut Blasting Machine for Carbon Deposits?

Walnut blasting is usually safe, but there are risks if it’s not done properly. Using the correct method helps fix engine problems like hard starts and improves engine performance.

The main risk is breathing in fine walnut shell dust. This can cause breathing problems if you don’t use safety gear. When using the machine, always wear a respirator and goggles to stay protected.

How Often Should I Use a Walnut Blaster Machine for Intake Manifold and Valve Cleaning?

How often you should clean the intake and valves depends on the vehicle’s age, mileage, and driving habits. Most drivers clean them every 30,000–50,000 miles or when they notice reduced engine performance. A professional mechanic can give personalized advice based on your vehicle.

Are Replacement Parts and More Media Readily Available for These Walnut Blaster Tool?

Yes, you can easily find replacement parts and blasting media for walnut blasting machines. You can buy them from the AUTOOL.
Click to quickly contact AUTOOL>

It’s important to use high-quality, original parts made for your machine. Cheap or fake parts can reduce performance or even damage the machine.

Aside from purchasing replacement parts and media, it is also important to regularly maintain and clean your walnut blasting machine. This will not only extend the life of your machine but also ensure its effectiveness in removing unwanted materials.

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