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AUTOOL HTS558 Walnut Shell Sand Blaster for Intake Manifold Cleaning
Original price was: US$479.00.US$359.00Current price is: US$359.00.
Key Features
- Integrated Cleaning Workflow
- Intake & Valve Cleaning
- 5 Intake Adapters
- 13L Mobile Format
- Integrated Cleaning Workflow: Walnut blasting, vacuum recovery, and dust filtration work together in one unit to reduce scattered media and simplify cleanup.
- Intake & Valve Cleaning: Targets carbon deposits in the intake pipe, intake manifold, and backside of intake valves.
- 5 Intake Adapters: Five adapter types support different intake-port shapes and cleaning setups for easier connection and sealing.
- 13L Mobile Format: A 13L main unit with 360° caster mobility makes the system easier to position and move around a garage or workshop.
- 3-Year Warranty Main unit 3 years · Accessories 1 year
- 90-Day Returns Eligible returns within 90 days
- Official Store Genuine products · Direct support
AUTOOL HTS558 · 1200W Walnut Blaster
Integrated Blasting & Vacuum Recovery
The AUTOOL HTS558 is a 1200W automotive walnut blaster for removing carbon from intake-manifold areas and the backs of intake valves. It uses an external air compressor to drive walnut shell abrasive for physical blasting, while the built-in vacuum recovery and dust filter collect recovered media and carbon residue. Walnut abrasive and the external air compressor are required separately.
- 1200W Rated Power
- 13L Capacity
- 5 Intake Adapters
- 0.6–1.2 mm Walnut Media
Best for: workshops cleaning intake pipes, intake manifolds, and the backs of intake valves with a compact 13L walnut blasting unit.
5 Intake Adapters
Key Features
HTS558 combines integrated spray-and-recovery cleaning, media management, intake carbon removal, adapter coverage, external-air blasting, workshop mobility, and product support.
5 Intake Adapters For Different Port Shapes
The machine includes 5 types of adapters to support different intake port shapes and cleaning setups. Match the adapter to the specific engine and intake-port shape before cleaning.
Spray And Vacuum Recovery Together
HTS558 sprays walnut abrasive and recovers it by vacuum in the same process, helping reduce scattered media and manual cleanup during intake carbon cleaning.
Built-In Dust Filter For Collected Media And Carbon Residue
The built-in dust filter helps manage collected walnut abrasive and carbon residue during recovery. The dust filter supports media recovery, but reuse depends on media condition, moisture, and the service procedure for the specific vehicle.
Intake Valve Carbon Cleaning with Integrated Recovery
Walnut-shell blasting helps remove carbon from intake-manifold areas and the backs of intake valves, while integrated vacuum recovery collects loosened residue and media. Results vary with vehicle condition and diagnosis.
External Air-Driven Blasting + 1200W Vacuum Recovery
The external air compressor provides the blasting force, while the 1200W rated-power machine supports vacuum recovery and filtration during carbon removal.
360° Swivel Casters
The 360° caster design makes the walnut blasting machine easier to move around a garage or workshop.
Walnut Media Recovery & Reuse
The recovery and filtration system helps separate collected walnut-shell abrasive from carbon residue so suitable media can be reused. Under normal conditions, walnut-shell abrasive can be reused 5–10 times. Keep the media dry and replace it if it becomes contaminated, clumped, or cleaning performance drops.
3-Year Main Unit Warranty
The main unit includes a 3-year warranty, and standard accessories include a 1-year warranty. AUTOOL support can also assist with setup, accessories, and troubleshooting. See the Warranty Policy for regional coverage, eligibility, and exclusions before purchase.
From Setup to Final Vehicle Check
Step-by-Step Workflow
HTS558 uses physical walnut-shell blasting with vacuum recovery. The complete job includes media preparation, intake access, target-valve closure, dry external air, blasting and recovery, inspection, final residual-media recovery, reassembly, leak checks, diagnostic scanning, and a functional vehicle check.
01
Step 1
Add Walnut Media
Load the recommended amount of compatible walnut abrasive before cleaning; dry, unclumped media helps keep the feed consistent.
- Add about 2–4 kg of compatible 0.6–1.2 mm walnut abrasive.
- Keep the media dry and free of clumps.
02
Step 2
Assemble Spray And Recovery Hose
Connect the spray gun/nozzle and recovery hose so blasting occurs within the recovery path.
- Connect the spray gun or nozzle.
- Connect the recovery hose.
- Keep blasting within the recovery path.
03
Step 3
Prepare The Engine
Switch the engine off, remove the intake manifold when needed to access the target port, and rotate the crankshaft until the target intake valve is closed. Isolate the other intake openings according to the service procedure for the specific vehicle.
- Switch the engine off and access the target port.
- Close the target intake valve.
- Isolate the other intake openings as required by the vehicle service procedure.
04
Step 4
Connect Dry External Air And AC Power
Connect an external compressor and AC power. Use an external compressor; 6 bar or more is generally recommended. Use stable, dry, filtered air and confirm sufficient continuous airflow for blasting.
- Connect the external compressor and AC power.
- Use 6 bar or more as generally recommended.
- Use stable, dry, filtered air with sufficient continuous airflow.
05
Step 5
Blast With Air And Remove Deposits
The external compressor provides the blasting force that drives walnut abrasive against deposits in the intake pipe, intake manifold, and the backs of the intake valves.
- Blast the target intake area with walnut abrasive.
- Keep the blasting stream within the intended cleaning area.
06
Step 6
Recover And Manage Collected Media
Vacuum recovery collects abrasive and removed residue while the built-in filter helps manage collected material. Recovered abrasive may be reused only when the service procedure for the specific vehicle permits it and the media remains suitable for reuse.
- Recover abrasive and removed residue.
- Use the built-in filter to manage collected material.
- Reuse recovered abrasive only when the vehicle service procedure permits it.
07
Step 7
Clean And Inspect Port By Port
The blasting step takes approximately 1–3 minutes per intake port, depending on the amount of carbon buildup. Stop and inspect before moving to the next port.
- Allow approximately 1–3 minutes per intake port, depending on carbon buildup.
- Stop and inspect before moving to the next port.
08
Step 8
Final Recovery, Reassembly And Vehicle Check
Vacuum out remaining abrasive, inspect the port with adequate lighting or a borescope to make sure no visible media remains, remove the tools and adapters, reinstall the intake components, then complete leak checks, a diagnostic scan, and a final functional check.
- Vacuum out remaining abrasive.
- Inspect with adequate lighting or a borescope.
- Remove tools and adapters, then reinstall intake components.
- Complete leak checks, a diagnostic scan, and a final functional check.
Before You Start
Safety & Compatibility
Before using HTS558, check the compressor, walnut abrasive, cleaning target, adapter seal, intake-valve position, required personal protective equipment (PPE), and final residual-media recovery steps. Always follow the service procedure for the specific vehicle when it differs from general product guidance.
External Compressor Required
HTS558 requires an external high-pressure air compressor. The compressor is not included.
Dry Filtered Air And Airflow
Use an external compressor; 6 bar or more is generally recommended. Use dry, filtered air with sufficient continuous airflow, and make sure the air tank, hose, quick-connect fittings, and compressor duty cycle are suitable for continuous blasting.
Walnut Abrasive
Use compatible 0.6–1.2 mm walnut-shell abrasive. Add about 2–4 kg of compatible 0.6–1.2 mm walnut abrasive. Walnut abrasive is not included.
Cleaning Scope
HTS558 is designed for cleaning the intake pipe, intake manifold, and the backs of the intake valves; it is not designed for fuel injectors, throttle valves, cylinders, or combustion chambers.
Adapter Fit And Sealing
The five supplied adapter types cover multiple intake-port shapes, but the adapter still needs to match the specific engine and port geometry. Before cleaning, confirm that the selected adapter fits the engine intake port and forms a secure seal.
Valve Closure And Port Isolation
Start blasting only after confirming that the target intake valve is fully closed. Clean one intake port at a time and isolate other intake openings as required by the service procedure for the specific vehicle.
Residual Media Control
Before starting the engine, vacuum out the remaining abrasive and inspect the cleaned area to make sure no visible media remains. Remove visible residual abrasive before starting the engine instead of relying on it to burn away.
Protective Equipment and Walnut-Media Safety
Use suitable eye and respiratory protection, ventilation, and the media supplier Safety Data Sheet (SDS). Walnut-shell abrasive can create dust and may present allergen concerns.
Walnut Abrasive Reuse
Reuse walnut abrasive only when the service procedure for the specific vehicle permits it and the recovered media condition remains suitable for reuse.
Mechanical Cleaning and Chemical Cleaner Guidance
HTS558 is designed for mechanical removal of intake carbon deposits. Chemical cleaners vary by product and application, and no cleaning method guarantees a specific performance improvement.
Compare models
Compare AUTOOL Walnut Blaster Models
Use this table to compare key specifications and feature differences across the AUTOOL walnut blasting models.
Compare models
Choose one or more models. HTS558 is selected by default.
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| Specification | ModelAUTOOL HTS558 | ModelAUTOOL HTS559 | ModelAUTOOL HTS518 | ModelAUTOOL HTS678 | ModelAUTOOL HTS728 |
|---|---|---|---|---|---|
| Core operation | |||||
| Cleaning Method | Walnut Shell Blasting | Walnut Shell Blasting | Walnut Shell Blasting | Walnut Shell Blasting | Walnut Shell Blasting |
| Input Voltage | 110/220 V | 110/220 V | 110/220 V | 110/220 V | 110/220 V |
| Rated Frequency | 50/60 Hz | 50/60 Hz | 50/60 Hz | 50/60 Hz | 50/60 Hz |
| Rated Power | 1200 W | 1400 W | 1400 W | 1500 W | 1400 W |
| Vacuum Suction | 0.02 MPa | 0.02 MPa | 0.02 MPa | 0.02 MPa | >0.7 MPa |
| Airflow | <300 L/min (<0.3 m³/min) | <300 L/min (<0.3 m³/min) | <300 L/min (<0.3 m³/min) | <300 L/min (<0.3 m³/min) | >400 L/min (>0.4 m³/min) |
| Walnut Shell Abrasive Size | 0.6–1.2 mm | 0.6–1.2 mm | 0.6–1.2 mm | 0.6–1.2 mm | 0.4–0.6 mm |
| Main Unit Capacity | 13 L | 30 L | 30 L | 10 L | 10 L |
| Product Weight | 10 kg | 12 kg | 23.5 kg | 52 kg | 50 kg |
| Adapter Types | 5 Types | 5 Types | 23 Types | 23 Types | 5 Types |
| Workshop hardware | |||||
| External Air Compressor Required | ✓Included | ✓Included | ✓Included | ✓Included | ✓Included |
| Storage Box | ×Not included | ×Not included | ✓Included | ✓Included | ×Not included |
| Pressure Gauge | ×Not included | ×Not included | ×Not included | ✓Included | ✓Included |
| Pressure Settings | ×Not included | ×Not included | ×Not included | Pressure Regulation Knob | Pressure Regulation Knob |
| Modes & filtration | |||||
| Mode Switch | ×Not included | ×Not included | High/Low Mode; Low-Speed Mode | Standard Mode; Expert Mode | Recovery Mode; Filling Mode |
| Built-In Dust Filter | ✓Included | ✓Included | ✓Included | ✓Included | ✓Included |
| HEPA (High-Efficiency Particulate Air) Filter | ×Not included | ×Not included | ×Not included | ✓Included | ✓Included |
| Cleaning scope & mobility | |||||
| Combustion-Chamber Cleaning | ×Not included | ×Not included | ×Not included | ×Not included | ✓Included |
| 360° Swivel Casters | ✓Included | ✓Included | ✓Included | ✓Included | ✓Included |
| Three-Section Telescoping Handle | ×Not included | ×Not included | ✓Included | ✓Included | ×Not included |
Model guide
Review the main differences below, then select models above for a side-by-side comparison.
AUTOOL HTS558
Current model: A lighter 13L walnut blasting model with five configured adapter types and built-in dust filtering.
AUTOOL HTS559
Keeps 1400W power and a 30L capacity, with five configured adapter types and no storage box.
AUTOOL HTS518
1400W, 30L capacity, 23 configured adapter types, storage box, and telescoping handle.
AUTOOL HTS678
Adds 1500W rated power, 23 adapter types, a pressure gauge, pressure regulation, HEPA filtration, and storage.
AUTOOL HTS728
Adds combustion-chamber cleaning capability, HEPA filtration, pressure regulation, and higher airflow.
Included & Not Included
Package Contents
The package includes the HTS558 main unit, spray gun, hose, goggles, adapters, and other listed accessories. Walnut abrasive and the external high-pressure air compressor are not included.
- Main UnitAUTOOL HTS558 walnut blaster machine
- Spray GunWalnut shell blasting gun and nozzle rods
- Recovery HoseRecovery hose
- Adapters5 yellow intake adapters and black rubber adapters
- Safety GogglesIncluded
- Not IncludedWalnut abrasive and external high-pressure air compressor
Downloads & Help
Manual & Support
Use the HTS558 manual for setup, filling, air connection, adapter use, cleaning, and maintenance. Contact support for replacement parts or package questions.
AUTOOL HTS558 User Manual
Open the PDF manual for HTS558 operation, connection, cleaning, and safe-use instructions.
Product, Setup & Service Answers
Frequently Asked Questions
Find answers about walnut abrasive, carbon deposits, compressor requirements, cleaning range, operation, safety, replacement media, model differences, and support.
How Does HTS558 Clean Intake-Valve Carbon?
HTS558 uses walnut blasting on supported intake-manifold and intake-valve surfaces to loosen carbon deposits, while integrated vacuum recovery collects spent media and residue. Follow the service procedure for the specific vehicle and confirm the target intake valve is closed before blasting.
What Is Walnut Sand?
Walnut abrasive, often called walnut sand, is made by crushing walnut shells and screening them by particle size. For HTS558, use compatible 0.6–1.2 mm media. Walnut-shell media can create dust and may present allergen concerns. Follow the media Safety Data Sheet (SDS) and use appropriate personal protective equipment (PPE).
What Walnut Shell Abrasive Size Should I Use?
Use 0.6–1.2 mm walnut-shell abrasive for HTS558.
Can Walnut Abrasive Be Reused?
Reuse walnut abrasive only when the service procedure for the specific vehicle permits it and the recovered media remains suitable for reuse.
Is Walnut Abrasive Included In The HTS558 Package?
No. Walnut abrasive and the external high-pressure air compressor are not included. Prepare compatible 0.6–1.2 mm media and an appropriate external compressor before cleaning.
What External Air Compressor Is Required?
Use an external compressor that meets the HTS558 pressure and continuous-airflow needs; 6 bar or more is generally recommended. Use dry, filtered air with sufficient continuous airflow, and make sure the air tank, hose, quick-connect fittings, and pressure settings suit the vehicle and workshop setup.
Can HTS558 Remove Carbon Buildup on Intake Valves?
HTS558 can remove carbon buildup from supported intake-valve and intake-port surfaces when inspection confirms deposits and the service procedure for the specific vehicle supports walnut blasting. Confirm access, adapter sealing, valve position, and residual-media recovery before completing the service.
How Does The HTS558 Walnut Blasting Machine Work?
After the target intake valve is closed, an external compressor drives walnut abrasive through the spray gun while HTS558 vacuum recovery collects media and carbon residue for filtration. Follow the vehicle-specific access, isolation, cleanup, and residual-check procedure.
How Much Walnut Abrasive Should I Add?
Add about 2–4 kg of compatible 0.6–1.2 mm walnut abrasive, seat the dust guard correctly, and close the cover securely before operation.
Can HTS558 Clean Injectors, Throttle Valves, Or Cylinders?
No. HTS558 is designed to clean the intake pipe, intake manifold, and the backs of the intake valves—not injectors, throttle valves, cylinders, or combustion chambers.
Is Walnut Blasting Safe For Engines?
Walnut blasting can be used for intake and valve carbon cleaning when the correct vehicle-specific procedure, media, adapter, valve-closure, isolation, dust-control, protective-equipment, and residual-recovery steps are followed.
What Are The Main Risks During Walnut Blasting?
Key risks include incorrect valve position, poor adapter sealing, inadequate recovery, residual media, wet or clumped abrasive, dust or allergen exposure, and incorrect reassembly. Use dry, filtered air and appropriate PPE, confirm adapter fit, perform a final vacuum and borescope inspection, and follow the service procedure for the specific vehicle.
How Often Should I Use A Walnut Blaster For Intake Cleaning?
There is no universal fixed mileage interval. Determine cleaning timing from inspection, diagnosis, vehicle condition, and the service guidance for the specific vehicle; clean only when deposits are confirmed and the service procedure supports mechanical cleaning.
Where Can I Compare HTS558, HTS559, HTS518, HTS678, And HTS728?
Use the AUTOOL Walnut Blaster Model Comparison table above to compare rated power, capacity, adapters, filters, modes, pressure controls, and combustion-chamber capability across HTS558, HTS559, HTS518, HTS678, and HTS728.
Are Replacement Parts And Walnut Media Available?
Replacement parts and walnut blasting media are available from AUTOOL. Use parts and media that match the HTS558 specifications, and check regional availability before purchase.
Customer Reviews
Leave A Review
Kitty ✓ Verified Purchase –
Best !!
This tool is very easy to use. It does an amazing job in no time. I wish I would have bought it sooner
Cora ✓ Verified Purchase –
Amazing
only drawback is that it came to me with small damage in the hose holder and the clips has broken, but the seller offered me another one immediately!
Jozef B. ✓ Verified Purchase –
Good machine
best autool