Aluminum Alloy Body Pure Copper Clamp Lightweight Design Spray Gun

Product Description

4001

The following is a comprehensive information summary about the 4001 spray gun, covering its model features, usage methods, and compatible coatings, etc. 

I. Basic Parameters of 4001 Spray Gun

1.Model and Structure

Model: 4001

Material: Aluminum alloy body, lightweight design.

Feeding Method:

4001: Pressure feeding (bottom cup type), capacity 1000ml.

4001B: Gravity feeding (top cup type), capacity 600ml.

Nozzle Size: 1.7mm (standard 4001 model), 1.4mm and 2.0mm are also available (4001B). 

2.Performance Parameters

Working pressure: 2 - 3.5 bar (approximately 0.2 - 0.35 MPa).

Air consumption: 1.0 - 2.0 CFM (4001); 15 - 22 CFM (4001B).

Atomization effect: Fan-shaped spray width is approximately 10 cm, supporting circular/elliptical spray pattern adjustment. 

II. Usage Method and Adjustment Skills

1.Usage Process

Preparation Work:

Clean the new gun (remove anti-corrosion oil), filter out paint impurities, and dilute to a viscosity of 17-24 seconds (Ford Cup No. 4).

Spraying Operation:

Keep the spray gun at a 90° angle to the surface, 15-20 cm away, and move it at a constant speed in parallel.

Each spray pass should overlap 1/3 to 1/2 to avoid sagging or missed areas. 

2.Key Adjustment Steps

Air pressure adjustment: 0.4 - 0.6 MPa (adjust during test spraying), too high may cause paint to fly, too low may result in poor atomization.

Paint flow adjustment: Loosen the paint flow knob counterclockwise to increase the flow (initially open about 2.5 turns).

Spray pattern adjustment:

Tighten the spray pattern knob clockwise → circular spray; loosen counterclockwise → fan spray. 

III. Applicable Coatings and Scenarios

1.Recommended Coating Types

Water-based coatings: Such as WS-4001 plastic paint (for ABS/PC/PP and other plastics), which needs to be diluted by 10% to 20%.

Oil-based paints: For primer, it is recommended that the nozzle diameter be ≥ 1.8mm; for topcoat, it should be ≤ 1.5mm. 

2.Application fields

Plastic parts (electronic products, toy shells), metal anti-corrosion (ships, machinery), furniture and car repair. 

IV. Maintenance and Precautions

1.Daily Maintenance

Clean the gun body and nozzle with clean water or thinner immediately after use to prevent clogging.

Add 3-4 drops of pneumatic tool-specific lubricating oil regularly to extend the service life of the seals. 

2.Fault Prevention

Paint Film Issues:

Sagging → Reduce paint output and increase movement speed;

Orange Peel → Increase air pressure or add more thinner.

Air Source Requirements: Compressed air must be filtered through an oil-water separator to prevent water contamination of the paint surface. 

V. Examples of Compatible Coatings

Summary:

The 4001 spray gun, as a universal spraying tool, is compatible with both water-based and oil-based paints. By precisely adjusting parameters such as air pressure, spray width, and paint output, it can meet the demands of various scenarios including plastic and metal surfaces. During operation, it is crucial to pay attention to cleaning and maintenance, and adjust the parameters according to the characteristics of the paint. For further information on specific models (such as the 4001B gravity feed version) or details on paint application,

FAQS:

Question A:What should be done if the spray pattern of 4001 is abnormal (distorted or asymmetrical) during use?

Answer A: 1.The spray pattern is biased to one side or in a crescent shape.

Cause: The control holes on one side of the air cap are clogged or the air cap is damaged.

Solution: Clean the air cap holes (use a soft brush and thinner, do not use metal tools); replace the air cap if it is damaged.

2.The spray pattern is too thick or split in the center.

Cause: The paint viscosity is too high or too low, the air pressure is incorrect, or the nozzle is worn.

Solution:If the viscosity is too high → add thinner until it reaches 17-20 seconds (using a Ford Cup No. 4);

If the viscosity is too low → reduce the amount of thinner;

If the nozzle is worn → replace the nozzle assembly.

Question B: What should be done if the paint application of 4001 becomes unstable or interrupted during use?

Answer B: 1.Unable to spray paint or with a small amount of paint sprayed

Reasons:The ventilation holes of the nozzle cap are blocked, or the suction pipe is blocked;

The stroke of the punch is too small;

There is insufficient paint.

Solutions: Clean the ventilation holes and the suction pipe; Turn the punch stroke counterclockwise to increase it; Add more paint.

2.Jumping of the gun (spaying interruption)

Reasons: The nozzle is not tightened, the gun needle seal is loose, or there is insufficient paint.

Solutions: Tighten the nozzle and the connecting nut; Add more paint; Replace the damaged seal.