Introduction
Thank you for choosing the NEOECO SJ83 Dual-Action Gravity Feed Airbrush. This professional airbrush is designed for high precision and ease of use, making it suitable for a wide range of applications from fine art to hobby projects. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your airbrush to ensure optimal performance and longevity.
Package Contents
Your NEOECO SJ83 Airbrush kit includes the following components:
- Dual-Action Airbrush (equipped with 0.3mm caliber accessories)
- Nozzle Sets: 0.2mm, 0.3mm, and 0.5mm fluid tips
- Needle Sets: 0.2mm, 0.3mm, and 0.5mm needles
- Detachable Cups: 9cc (1/3 oz), 20cc (2/3 oz), and 40cc (4/3 oz) capacity
- Quick Disconnect Coupler
- Replacement O-ring Set
- Small Wrench
- Eye Dropper
- Container Box

Figure 1: NEOECO SJ83 Airbrush Kit Contents
Product Features
- High Precision: The professional airbrush features a self-centring plug-in nozzle design, allowing for versatile use from extra fine detail to 1.5-inch wide background sprays. The open needle cap facilitates higher precision work.
- Super Easy to Clean: Designed without threads in the nozzle, changing nozzles takes approximately 5 seconds, reducing the risk of breakage and saving time. The cutaway handle allows for quick flushing and cleaning of air passages.
- Abundant Accessories: The kit includes 0.2, 0.3, and 0.5mm fluid tips, along with 9cc, 20cc, and 40cc detachable cups to suit various painting needs. A quick disconnect coupler and replacement O-ring set are also included to extend the airbrush's lifespan.
- Upgraded Chrome Plated Cup: Experience an enhanced black cup with an upgraded oxidation process for easier cleaning and minimal shedding. An additional chrome-plated cup is provided for effortless maintenance.
- Wide Application: This airbrush kit is ideal for beginners, students, and advanced artists, performing excellently across most airbrushing applications and paint media. It is suitable for hobbies, crafts, auto graphics, temporary tattoos, cake decorating, fine art, and nail art.
Setup
1. Nozzle and Needle Installation
The SJ83 features a self-centring plug-in nozzle for quick and easy changes. To install or change a nozzle:
- Ensure the airbrush is clean and free of paint residue.
- Carefully insert the desired nozzle (0.2mm, 0.3mm, or 0.5mm) into the front of the airbrush body. The self-centring design ensures proper alignment.
- Screw on the needle cap finger-tight. Do not overtighten.
- Insert the corresponding needle from the rear of the airbrush, pushing it gently until it seats correctly within the nozzle.
- Secure the needle by tightening the needle chucking nut at the rear of the airbrush.

Figure 2: Self-centring plug-in nozzle for quick changes.
2. Cup Attachment
Select the appropriate paint cup (9cc, 20cc, or 40cc) for your project and securely attach it to the top of the airbrush body.
3. Connecting to Air Source
Attach the quick disconnect coupler to the air inlet at the bottom of the airbrush. Connect your air hose from the compressor to the quick disconnect coupler.
Operating Instructions
1. Paint Preparation
Ensure your paint is properly thinned to the consistency of milk for optimal flow and atomization. Always strain your paint to remove any particles that could clog the airbrush.
2. Dual-Action Trigger Control
The SJ83 is a dual-action airbrush, meaning air and paint flow are controlled independently:
- Pressing down on the trigger releases air.
- Pulling back on the trigger controls the amount of paint released.
Practice this motion on a scrap surface to get a feel for the control.
3. Adjusting Spray Width and Airflow
- Preset Fluid Control Knob: Located at the rear of the airbrush, this knob allows you to limit how far the needle can be pulled back, thus controlling the maximum paint flow and spray width.
- MAC Valve: The Micro Air Control (MAC) valve, located near the air inlet, allows for fine-tuning of the air pressure directly at the airbrush, offering precise control over atomization.
4. Basic Airbrushing Techniques
For detailed guidance on basic airbrushing techniques such as creating dots, lines, and dash strokes, refer to the video tutorial below.
Video 1: How To Create Dots, Lines, And Dashstrokes Using An Airbrush (Seller)
This video demonstrates fundamental airbrushing techniques for creating various patterns and details.
Video 2: NEOECO Airbrush: Embark On Your Inaugural Airbrush Project! (Seller)
A beginner-friendly guide to starting your first airbrush project with the NEOECO SJ83.
Maintenance and Cleaning
Proper cleaning and maintenance are crucial for the longevity and performance of your airbrush. The SJ83 is designed for easy cleaning.
1. Regular Cleaning (After Each Use)
- Empty any remaining paint from the cup.
- Add a few drops of appropriate airbrush cleaner or thinner to the cup.
- Back-flush the airbrush by covering the nozzle with your finger or a silicone cap and pressing the trigger to release air. This will create bubbles in the cup, cleaning the paint channel.
- Spray the cleaner through the airbrush until it runs clear.
- Wipe the cup clean with a cotton swab or brush.
2. Deep Cleaning and Disassembly
For thorough cleaning or when changing paint types, full disassembly may be required. The SJ83's threadless nozzle design simplifies this process.
- Remove the handle and loosen the needle chucking nut to carefully withdraw the needle.
- Unscrew the air cap and gently pull out the nozzle.
- Clean all components with airbrush cleaner and appropriate brushes.
- Reassemble the airbrush in reverse order, ensuring all parts are securely fitted.

Figure 3: Quick nozzle removal for easy cleaning.
Video 3: Guide to Disassembling and Reassembling the SJ83 Airbrush (Seller)
This video provides a step-by-step guide on how to properly disassemble and reassemble your SJ83 airbrush for thorough cleaning.
Troubleshooting
Most airbrush issues can be resolved with simple checks and adjustments. Here are common problems and their solutions:
- Bubbling in the Paint Cup (Backflow): This often indicates an air leak at the nozzle or air cap. Ensure the nozzle is clean and properly seated, and the air cap is finger-tightened or tightened with the provided wrench. Check the O-rings for damage.
- No Spray or Intermittent Spray: This is typically caused by a clogged nozzle or an improperly seated needle. Clean the nozzle thoroughly, check for dried paint, and ensure the needle is fully inserted and the chucking nut is secure. Also, verify adequate air pressure from your compressor.
- Inconsistent Spray Pattern: This can be due to improper paint thinning, a bent needle tip, or a partially clogged nozzle. Adjust paint consistency, inspect the needle for damage, and clean the nozzle.
Video 4: How to fix backflow problem for SJ83 airbrush? (Seller)
This video provides specific solutions for resolving backflow issues with your SJ83 airbrush.
Specifications
| Brand | NEOECO |
| Model Name | NCT-SJ83 |
| Color | BLACK |
| Material | Metal |
| Item Weight | 0.35 Kilograms (12.3 ounces) |
| Power Source | Air Powered |
| Maximum Pressure | 35 Pound per Square Inch |
| Product Dimensions | 6.14 x 1.06 x 2.99 inches |
| Date First Available | February 18, 2023 |
Warranty and Support
Each NEOECO SJ83 Airbrush undergoes rigorous inspection to ensure it functions in good condition upon arrival. If you encounter any problems or have questions regarding your product, please contact us. We are committed to providing prompt assistance and will respond as quickly as possible.



