Product Specification
Centered on "multi-scenario adaptation + high efficiency & labor saving + durability & stability", the YD32-003 HVLP Gravity Feed Spray Gun is optimized for the core needs of medium-to-large area spraying, with core advantages as follows:
Compared with single-caliber spray guns, this product's multi-caliber design covers all scenarios from precision to efficiency:
- 1.4mm for Low-Viscosity Topcoats: Compatible with clear coats, water-based furniture paints, etc. It produces fine atomized particles (≤35μm), with a spraying width of 20-25cm. The coating thickness can be controlled at 10-15μm, leaving no orange peel on furniture surfaces and eliminating the need for subsequent sanding;
- 1.6mm for Regular Coatings: Suitable for medium-viscosity coatings such as nitrocellulose paint and acrylic paint, with a spraying width of 25-30cm and efficiency of 12-15㎡/hour (e.g., one 3㎡ wall takes only 12 minutes). It balances precision and speed, ideal for bulk spraying of wooden doors and wardrobes;
- 2.0mm for High-Viscosity Coatings: Designed for anti-rust primers and thick-paste industrial paints to avoid nozzle blockage. The spraying thickness can reach 30-40μm, meeting primer protection needs with one spray (e.g., anti-rust spraying of metal shelves) and increasing efficiency by 60% without repeated application.
The 304 stainless steel nozzle is 2.5 times harder than traditional brass. It can be disassembled 300 times repeatedly without thread slipping, and the inner wall has no scratches. Even when spraying anti-rust paint containing fine particles, it will not wear the nozzle and cause poor atomization. Its service life is 3 times that of brass nozzles, reducing nozzle replacement costs in long-term use.
Traditional high-pressure spray guns (60-80 PSi) have rough atomization and high coating waste, while low-pressure spray guns (≤40 PSi) have low efficiency. The 50 PSi design of this product:
- Fine Atomization: The double-ring split air cap allows air flow to evenly wrap the coating, with atomized particle diameter ≤40μm. After medium-to-large area spraying, the coating flatness reaches ≤5μm (industry average 8μm), eliminating frequent rework;
- Higher Efficiency: The spraying width is 20% larger than that of 40 PSi low-pressure spray guns, completing 15-18㎡ spraying per hour (e.g., 3 standard wardrobes). It is 30% more efficient than traditional low-pressure spray guns, meeting bulk production needs;
- Material Saving & Environmental Protection: The coating utilization rate reaches over 70%, requiring only 80-100mL of coating per 1㎡ wall (traditional high-pressure spray guns need 120-150mL). Long-term bulk use can save 30% of coating costs, and paint mist diffusion is reduced by 40%, lowering the investment in ventilation equipment.
The gun is equipped with a high-precision pressure regulating valve. Rotating the knob allows fine adjustment of air pressure (range 40-55 PSi): reduce to 45 PSi for low-viscosity paint (for finer atomization) and increase to 52 PSi for high-viscosity paint (to prevent blockage). No additional external pressure regulating equipment is needed, and beginners can quickly get started by referring to the manual.
- Large Capacity Reduces Frequency: The 600mL cup can hold 480mL of coating (to avoid overflow), and only one cup of coating is needed to spray one wooden door (approx. 2.5㎡). Compared with a 300mL small cup, it reduces refueling frequency by 50% and saves 30 minutes for spraying 10 wooden doors;
- High-Transparency Visualization: The PC cup allows real-time observation of coating remaining and stirring status, avoiding spraying interruptions due to insufficient coating or coating color difference due to sedimentation;
- Leak-Proof & Easy Cleaning: Double sealing with cup mouth thread + nitrile rubber sealing ring ensures no leakage when spraying inclined surfaces (e.g., wall tops) at 60°. The cup is detachable and can be rinsed directly during cleaning without disassembling the gun body, completing preliminary cleaning in 30 seconds.
The 780g aluminum alloy gun body weighs only as much as a large bottle of mineral water, with no hand soreness even after 2 hours of continuous spraying. The grip adopts an arc design that fits the palm, and the trigger pressing force is only 3.5N (equivalent to lifting a 0.35kg object). Workers have no finger pressure even during long-term operations, reducing labor intensity.
Scenario Requirement: A furniture factory sprays nitrocellulose topcoat on 100 standard wooden doors (2.1m×0.9m) using a 1.6mm nozzle, 50 PSi air pressure, a 0.5m³/min industrial air compressor, and medium-viscosity nitrocellulose topcoat (viscosity 15s).
Operation Process:
- Preparation: Install the 1.6mm nozzle, pour nitrocellulose topcoat into the cup (450mL per cup), connect the air compressor and adjust to 50 PSi, test atomization (28cm wide fan shape with uniform particles);
- Bulk Spraying: Divide into groups of 2—one person is responsible for spraying (20cm nozzle distance, 40cm/s speed, 2 coats per door, 3 minutes per door), and the other is responsible for refueling and workpiece transfer;
- Cleaning & Maintenance: Rinse the gun body and nozzle with nitrocellulose thinner after spraying 20 doors (taking 2 minutes) to ensure no coating residue.
Result: An average of 120 wooden doors are completed per day (20% more than planned), with a coating qualification rate of 99% (no sagging, missing spots, or orange peel). The coating utilization rate is 72% (saving approx. 15mL of coating per door), and coating costs are saved by 180 yuan per day compared with traditional spray guns.
Scenario Requirement: An auto repair shop performs partial renovation on a family car door (area approx. 1.5㎡)—first spraying epoxy anti-rust primer (high viscosity, select 2.0mm nozzle), then acrylic topcoat (medium viscosity, select 1.6mm nozzle) at 50 PSi air pressure, with a 0.3m³/min portable air compressor.
Operation Process:
- Primer Spraying: Install the 2.0mm nozzle, pour epoxy primer (300mL), adjust air pressure to 52 PSi, spray quickly once at 25cm nozzle distance (taking 2 minutes), and dry for 2 hours;
- Topcoat Spraying: Replace with the 1.6mm nozzle, pour acrylic topcoat (200mL), adjust air pressure to 48 PSi, apply 3 thin coats (10-minute interval between coats, 1 minute per coat);
- Detail Processing: Touch up edge defects with the 1.6mm nozzle, clean the gun body and store.
Result: The color difference between the renovated door panel and the original car paint is ≤ΔE2.5 (hard to distinguish with the naked eye), and the coating adhesion meets Grade 1 of GB/T 9286-1998 (no peeling). The repair time is reduced from 4 hours with traditional spray guns to 2.5 hours, and customer satisfaction is increased by 95%.
Scenario Requirement: A decoration company sprays water-based wall paint (low viscosity, select 1.4mm nozzle) and nitrocellulose paint for wooden doors (medium viscosity, select 1.6mm nozzle) in a three-bedroom, one-living-room house (wall area approx. 80㎡, 4 wooden doors) at 50 PSi air pressure, with a 0.4m³/min household air compressor.
Operation Process:
- Wall Spraying: Install the 1.4mm nozzle, pour water-based wall paint (480mL per cup), adjust air pressure to 48 PSi, spray the wall at 25cm nozzle distance and 50cm/s speed (one cup of paint covers 8㎡, taking 10 minutes per cup);
- Wooden Door Spraying: Replace with the 1.6mm nozzle, pour nitrocellulose paint (400mL per cup), adjust air pressure to 50 PSi, spray the wooden doors at 20cm nozzle distance (2 coats per door, taking 4 minutes per door);
- Finishing & Cleaning: Rinse the wall paint part of the gun with clean water, clean the wooden door paint nozzle with thinner, and store the gun integrally.
Result: The wall coating is uniform with no brush marks (traditional rollers leave marks requiring touch-up), and the wooden door surface is smooth and glossy. The entire process only requires one operator and is completed in 2 days (traditional methods require 3 people for 3 days), reducing labor costs by 60%.
A1: It is mostly due to wrong nozzle selection or improper air pressure/viscosity. Solve it by targeted adjustment:
- Nozzle Check: High-viscosity primer must use a 2.0mm nozzle. If 1.4/1.6mm nozzles are used, the coating is prone to blockage and intermittent flow—replace with a 2.0mm nozzle immediately;
- Air Pressure Adjustment: Increase the air pressure from 50 PSi to 52-55 PSi (via the gun's pressure regulating valve) to enhance coating thrust and ensure continuous output;
- Coating Dilution: If intermittent flow persists, add a dedicated thinner (epoxy thinner for epoxy primer) to reduce the viscosity from over 25s to 20-22s (test with a viscosity cup), stir evenly before spraying;
- Preventive Suggestion: Fully stir high-viscosity coatings for at least 5 minutes before use to avoid uneven output caused by sedimentation. Refuel in time when the coating in the cup is less than 1/3 (to prevent insufficient gravity feeding pressure).
A2: Avoid it through "capacity control + operation skills" without replacing the cup:
- Capacity Control: Strictly add coating "no more than 80% of the cup capacity" (max. 480mL for 600mL cup). The 20% reserved space at the cup mouth prevents overflow even with slight tilting;
- Operation Posture: When spraying inclined surfaces (e.g., wall tops, wooden door sides), keep the gun body at an angle of ≥45° with the workpiece, avoid excessive inversion of the cup (max. tilt angle ≤60°), and slow down the moving speed to reduce coating shaking;
- Accessory Assistance: Contact the merchant to purchase an anti-overflow lid for the cup (dedicated accessory that covers the cup mouth without affecting feeding). Even in case of accidental tilting, the coating will not spill, which is suitable for beginners or high-altitude operation scenarios.
A3: Pinholes are mostly due to high coating moisture content or improper spraying environment. Solve it step by step:
- Coating Check: If the moisture content of clear coat (especially water-based clear coat) exceeds 5%, water evaporation after spraying will form pinholes. Add a dedicated defoamer (addition ratio 1%-2%), stir evenly, and let it stand for 10 minutes before spraying;
- Environment Control: When the spraying environment temperature is ＜15℃ or humidity ＞75%, the clear coat dries slowly and is prone to pinholes. Adjust the environment (turn on the air conditioner to raise the temperature to 20-25℃, use a dehumidifier to reduce humidity to below 60%);
- Spraying Parameter Adjustment: Reduce the air pressure from 50 PSi to 45-48 PSi, slow down the moving speed (from 40cm/s to 30cm/s), and apply 2 thin coats (8-10μm per coat) to avoid excessive thickness of a single coat that prevents timely water evaporation;
- Precautions: For coatings with pinholes, gently sand them smooth with 800-mesh sandpaper after complete drying, then apply a thin coat of clear coat again to eliminate the marks.
A4: A 0.2m³/min air compressor can be used for small-area emergency spraying, but ≥0.3m³/min is recommended for medium-to-large areas:
- Small-Area Emergency (e.g., one wooden door): A 0.2m³/min air compressor can support 1.4/1.6mm nozzles. Use the "intermittent spraying" method (1 minute spraying + 20 seconds pause) to avoid air pressure drop due to compressor overload (pressure below 45 PSi will affect atomization), and the single spraying area should not exceed 5㎡;
- Medium-to-Large Areas (e.g., whole-house walls, bulk furniture): Must replace with an air compressor of ≥0.3m³/min. Otherwise, problems such as "unstable air pressure → uneven atomization → coating color difference/sagging" will occur, and frequent start-stop of the compressor will shorten its service life, which affects overall efficiency instead;
- Adaptation Suggestion: When purchasing an air compressor, prioritize models with "displacement 0.3-0.5m³/min and air tank capacity ≥20L". The air tank can stabilize air pressure, avoid pressure fluctuations during spraying, and ensure consistent quality of medium-to-large area spraying.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
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Business Type:
Manufacturer,Trading Company
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Employee Number:
110~120
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Ecer Certification：
Verified Supplier
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