AUTOOL HTS558 Walnut Blasting Machine for Engine Decarbonisation

AUTOOL HTS558 walnut blasting machine for professional engine decarbonisation

• ✔ Rugged workshop quality for daily use on modern petrol engines
• ✔ Effective removal of carbon deposits on intake valves
• ✔ Combined blasting and extraction system for clean working
• ✔ Gentle cleaning thanks to a precise walnut blasting process
• ✔ Developed for professional workshop use and engine reconditioning

The AUTOOL HTS558 walnut blasting machine was developed specifically for the professional cleaning of intake ports and intake valves. On modern direct-injection engines in particular, heavy carbon deposits build up over time which can restrict the airflow and reduce engine performance.

The controlled walnut blasting process removes carbon build-up while protecting the material. The system combines compressed-air technology with integrated extraction and is ideal for workshops that carry out engine decarbonisation on a regular basis.

Efficient removal of carbon deposits

The walnut granulate is blasted onto the soiled intake valves in a targeted way using compressed air. The fine granules reliably loosen hard deposits without damaging sensitive metal surfaces.

This improves the airflow in the intake tract, which can have a positive effect on engine running, throttle response and combustion behaviour.

Integrated blasting and extraction system

The AUTOOL HTS558 works with a closed cleaning system. During blasting, loosened residues and excess walnut granulate are extracted and filtered directly.

This reduces dust in the working area and allows part of the blasting medium to be reused.

Workshop-grade construction for daily use

The unit was developed for professional workshop environments. Robust connections, sturdy workmanship and durable components ensure reliable use even with frequent application.

The stable compressed-air supply provides an even blasting pattern and supports controlled cleaning of heavily carbonised intake systems.

Why high-quality blasting technology matters

Imprecise budget systems can lead to uneven material feed or unstable air pressure. This reduces the cleaning effect and clearly increases the workload.

Thanks to its carefully matched design, the AUTOOL HTS558 provides a constant walnut granulate feed and a controlled blasting performance.

Suitable for modern direct-injection engines

Petrol engines with direct injection in particular tend to develop heavy deposits in the intake tract. Since fuel is no longer routed across the intake valves, the natural cleaning effect of the petrol is missing.

Oil mist and combustion residues therefore build up on the valves and can cause performance problems in the long term.

Gentle cleaning of sensitive engine components

Walnut granulate has an ideal material hardness for engine cleaning. It removes carbon deposits effectively without attacking aluminium, valve seats or other sensitive components.

This makes the process particularly suitable for modern engines with sensitive intake systems.

Technical features of the AUTOOL HTS558

• Walnut blasting process for mechanical engine cleaning
• Integrated extraction function with recovery system
• External compressed-air connection for stable blasting performance
• Suitable for professional workshop applications
• Rugged metal construction for long-term use

Recommended operating data

• Compressed-air supply: over 0.7 MPa / approx. 7 bar
• Walnut granulate grain size: 0.4 to 0.8 mm
• Recommended granulate quantity: 2 to 4 kg
• Cleaning time: approx. 1 to 3 minutes per valve

Scope of delivery

• AUTOOL HTS558 walnut blasting machine
• 2x spray guns
• Recycling hose
• Spray gun connector
• Safety goggles

Important notes

Walnut granulate is not included in the scope of delivery.

An external compressed-air source is required for operation.

This unit is intended solely for the mechanical removal of carbon deposits and does not replace any diagnostic devices or engine testers.

Professional solution for engine decarbonisation

With the AUTOOL HTS558, workshops get a powerful cleaning system for the professional removal of carbon build-up in the intake tract. The combination of controlled blasting technology, integrated extraction and workshop-grade construction enables efficient engine cleaning that protects the material.

Free shipping from €50 (Germany) – within the EU from €100

Delivery

Delivery is made to the delivery address provided by the customer during the ordering process. By way of exception, where PayPal is selected as the payment method, the delivery address stored with PayPal at the time of payment is decisive.

If delivery to the customer was not possible and the transport company returns the goods to the seller, the customer bears the costs of the unsuccessful delivery. This does not apply where the customer exercises their right of withdrawal by refusing acceptance, where they are not responsible for the circumstance that made delivery impossible, or where they were temporarily prevented from accepting the goods – unless the seller had given them reasonable advance notice of the delivery.

Shipping costs

• Germany: free from an order value of €50, below that €3.99
• European Union: free from an order value of €100, below that €14.99
• Switzerland: €20.00
• United Kingdom: GBP 20.00

Delivery area and delivery time

We deliver to Germany, to the 26 other countries of the European Union and to Switzerland and the United Kingdom. We are currently unable to deliver to other countries.

For deliveries to Switzerland and the United Kingdom, customs duties, import taxes or other charges may be incurred in addition; these are borne by the customer.

The delivery time within Germany is usually 1–3 working days.

Payment methods

You can pay by credit card (Visa, Mastercard, Maestro), PayPal, Klarna (purchase on account or instalments), Shop Pay, Apple Pay, Google Pay, advance payment by bank transfer or cash on delivery.

Cash on delivery is only available for deliveries within Germany from an order value of €50. An additional fee of €9.99 is charged for it.

Digital licences and activations

Update licences, secure gateway activations and HaynesPro access are digital goods. No shipping costs apply – you will receive the activation code by email once payment has been received, usually within 1–3 working days.

If the licence is tied to a device, enter your device’s serial number directly in the order form when purchasing. That way we can set up the activation for your device without further enquiries.

Please note: for digital licences the right of withdrawal expires as soon as we have begun providing the item and you have expressly agreed to this beforehand. For devices and all other goods, the statutory right of withdrawal applies unchanged.