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HTS678 vs HTS728 Walnut Blasting Machine Comparison Guide

Posted on by Tina
15
Sep
In the field of engine maintenance, carbon buildup is an unavoidable topic. Especially in Gasoline Direct Injection (GDI) engines, thick carbon deposits tend to form in the intake ports and combustion chambers, leading to reduced power, increased fuel consumption, and even knocking. The Walnut Blasting Machine is a common and efficient solution to this problem. Today, we’ll compare two popular models: AUTOOL HTS678 and AUTOOL HTS728, to see their differences and determine which one is more suitable for you. Additionally, if you’d like to learn more about the features of the HTS728, you can refer to this related article: AUTOOL HTS728 Walnut Blasting Machine for Intake Valve Cleaning.

The main differences between HTS678 and HTS728 Walnut Blasting Machine

Features

HTS678

HTS728

Abrasive Particle Size

0.6-1.2 mm

Finer, 0.4-0.6 mm

Does it support combustion chamber cleaning?

Mainly used for intake ports and valves, not fully supporting combustion chamber cleaning.

Supports combustion chamber cleaning (accessible through spark plug hole)

Pressure Adjustment

Supports pressure adjustment.

Supports, more precise

Recovery System

Equipped with HEPA filtration and abrasive recovery functions.

Improved recovery and separation system, allowing for reusable abrasives

Scope of Use

egular carbon deposit cleaning (intake manifold, valves).

For more complex and heavy carbon buildup, especially in the combustion chamber

Cost

Lower price, high cost-performance ratio

Higher cost, but more comprehensive features

HTS678: Economical and Practical Choice

The advantages of the HTS678 are:

  • Affordable price: Lower overall investment, making it suitable for general repair shops or individual vehicle owners.
  • Sufficient functionality: For most vehicles, carbon buildup in the valves and intake ports is the main issue, and the HTS678 is fully capable of handling it.
  • Simple maintenance: Easy to operate with minimal complexity, making it quick to learn.

If your engine is not a high-pressure direct injection (GDI) type, or if you mainly focus on regular maintenance, the HTS678 is a highly cost-effective choice.

HTS728 Walnut Blasting Machine: Advanced Professional Tool

In comparison, the HTS728 Walnut Blasting Machine is more like an “advanced version”:

  • Finer walnut shell particles: Capable of reaching deeper into the combustion chamber for more thorough cleaning.
  • Supports combustion chamber cleaning: Especially effective for deep carbon buildup in direct injection (GDI) and turbocharged engines.
  • Improved recovery system: Equipped with a stronger filtration and separation system, effectively distinguishing between carbon residue and abrasives, making it environmentally friendly and reducing long-term usage costs.
  • Suitable for professional repair environments: For repair shops and car dealerships, the HTS728’s comprehensive performance better meets the demands of high-frequency and deep cleaning.

For a more detailed introduction to the HTS728, you can click here to read the full article: [AUTOOL HTS728 Walnut Blasting Machine for Intake Valve Cleaning and Engine Carbon Cleaning].

AUTOOL Official Team

Mobile/whatsapp/Wechat:+86 189 2647 7404 
Email: shop.autooltech.com
Website Official Shop: https://shop.autooltech.com/

Tina

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