Walnut Blaster For Intake And Valve Cleaning

Wondering if a walnut blasting machine is worth it? Cleaning engine carbon deposits usually costs $50–$150 each time, and frequent carbon cleaning can get expensive. In this article, we’ll show you how a walnut blaster works, its key benefits, and whether it’s better to buy or sandblasting equipment rentals one for your workshop.

Working Principle of Walnut Blasting Machine

The walnut blaster kit uses crushed walnut shells as the cleaning media. It relies on compressed air to create a strong airflow that is directed at the engine’s intake valves and ports, effectively removing stubborn carbon buildup. Walnut shells are hard but flexible enough not to damage metal parts. This makes walnut blasting a safe and non-destructive cleaning method for the engine.

Before and After Engine Carbon Deposit Cleaning

Walnut blasting is highly effective in removing carbon deposits from intake valves and ports, improving engine performance and fuel efficiency.

If you only need to clean the intake carbon deposits on one or two vehicles, renting a walnut blasting equipment can be a convenient option. Rental prices typically range from $50 to $150 per day, and there’s no need to worry about maintenance or storage, making it a good choice for DIY enthusiasts.

However, Renting Walnut Blaster Does Have Some Limitations

• The cost of repeated rentals adds up quickly.
• Rental periods are limited, which may restrict your freedom to use it.
• The rented walnut blasting equipment may lack necessary accessories, and you may need to rent an air compressor separately.

In contrast, if you’re a mechanic, run a workshop, or plan to offer walnut blasting engine carbon cleaning services, purchasing a walnut blaster is a more cost-effective choice.

For example, the AUTOOL HTS558 intake valve walnut blasting machine is priced around $350, comes fully equipped, and is widely compatible. Plus, it includes a 3-year warranty, ensuring peace of mind with your purchase.

✅ What We Recommend

• If you only plan to use it temporarily: Renting saves you the initial investment.
• If you need to use it frequently or want to expand your services: Purchasing a walnut blaster is a better long-term investment.

Want to learn more about walnut blaster models, operating procedures, or compatibility?

Click the button below to contact me — first time buyers can enjoy a 10% discount and a 3-year warranty!

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AUTOOL HTS558 – Basic Portable Model

• The HTS558 is a portable machine designed for lightweight mobile operation, weighing only 12kg. It’s perfect for on-site services or personal DIY use. With a simple configuration and 5 basic connectors, it’s ideal for single-vehicle maintenance. While it lacks a storage box and pressure adjustment, it’s budget-friendly and perfect for occasional users.

AUTOOL HTS559 – Lightweight Practical Model

• Similar to the HTS558, the HTS559 upgrades to a 30L large capacity, making it suitable for longer tasks. It retains the lightweight design while increasing endurance, ideal for small to medium repair shops or users seeking professional performance at an affordable price. Although it lacks pressure regulation and storage, it offers excellent value.

AUTOOL HTS518 – Standard Flagship Model

• The HTS518 balances performance and portability, featuring a 1400W power output, a 30L large tank, and 23 adapter connectors, covering most vehicle needs. The suitcase design makes it easy to transport, ideal for frequent daily use. Recommended for advanced users or car service shops that handle a variety of vehicles and require efficiency and flexibility.

AUTOOL HTS678 – High-End Professional Model

• The HTS678 is the high-end professional model in the AUTOOL series, equipped with 1800W power, standard/expert mode switching, and precise knob pressure adjustment. It includes a built-in pressure gauge and 23 connectors, ensuring high cleaning efficiency and wide compatibility. This model is perfect for large repair shops or professional technicians dealing with heavy carbon buildup and complex vehicle types, ideal for intensive work.

AUTOOL HTS728 (New)– High-End Professional Model

• The HTS728 represents the latest generation of high-end walnut blasting machines, designed for professional technicians and large-scale repair shops. Equipped with a powerful 1400W motor and adjustable pressure control.
• In contrast, the AUTOOL HTS728 Walnut Shell Sand Blaster is an upgraded version of the HTS678. This model utilizes finer walnut shell abrasive (0.4–0.6mm), making it ideal for more precise engine cleaning tasks. The most significant difference is that the AUTOOL HTS728 supports engine combustion chamber cleaning.

AUTOOL intake valve walnut blasting machines come in a variety of models, including portable and professional versions. Here are some key factors to consider before purchasing:

1. Air Pressure

The performance stability of a walnut blasting machine largely depends on the air compression system.
AUTOOL recommends using an air compressor equipped with a drying filter to effectively remove moisture, prevent walnut shell clumping, and maintain high blasting efficiency.

• Recommended Air Pressure Range:Maximum working pressure should be 0.7 MPa (approximately 6 bar) or higher.
• Filtration and Drying System:It is strongly advised to use an oil-water separator or air dryer to keep the blasting media dry and flowing smoothly.

2. Walnut Sand Particle Size

The particle size of the walnut shell media directly impacts cleaning efficiency and equipment compatibility. AUTOOL walnut blasting machines are designed to work best with walnut shell abrasives in the 0.6–1.2 mm range (approximately 16–30 mesh).

• Recommended Particle Size Range:0.6–1.2 mm — ensures efficient cleaning without damaging intake valves.
• Reusability:When used in a clean, oil-free, and dry environment, walnut shells can typically be reused 5–10 times, providing excellent cost-effectiveness.

Note: The AUTOOL HTS728 expert-grade carbon cleaning machine operates with walnut shell abrasives sized 0.4–0.6 mm for optimal cleaning performance.

If you value engine health, want to save on repair costs, or plan to start an engine cleaning business, a walnut blasting machine is a highly cost-effective investment.

👉Want to learn more? Contact us to enjoy a 10% discount for new customers and 3-year warranty!

• WhatsApp: +86 189 2647 7404
• Email: shop@autooltech.com

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