PRODUCTS
- Diaphragm pump prevents paint leaks due to packing wear, enabling highly-stable coating.
- Paint retention parts have been greatly reduced for easy solvent cleaning during color change, while paint waste and
VOC emissions are significantly reduced.
- The flange is coated with fluorine resin, making it even easier to clean than previous models.(PD40・40L)
- A small bore suction hose allows you to use paint and solvent without waste, and makes it remarkably easy to clean.
(PD40L)
- A pressure increase valve produces twice as much air pressure as the standard type, making it ideal for high-viscosity
paints such as water-based and hybrid paints.(PD40SW)
- The paint path is constructed entirely of stainless steel, preventing corrosion with water-based paints, etc.(PD40S)
- Combined with a high-viscosity regulator, paint is supplied at a steady rate, providing uniform film quality.(PD40S)
|
Model |
PD40 |
PD40L |
PD40S |
PD40SW |
|---|---|---|---|---|
|
Pressure ratio |
1:1 |
1:2 |
||
|
Max. paint pressure |
0.7MPa |
1.0MPa |
||
|
Max. air pressure |
0.7MPa |
1.0MPa |
||
|
Max. rate of discharge*1 |
20L/min |
10L/min |
20L/min |
15L/min |
|
Air hatch |
G1/4(PF1/4) |
|||
|
Fluid outlet |
Rc3/8(PT3/8) |
G3/8(PF3/8) | ||
|
(Low-pressure regulator hatch bore G1/4(PF1/4)) |
(Low-pressure regulator hatch bore G3/8(PF3/8)) | |||
|
Dimensions (W x D x H) |
470×540×690mm |
470×640×690mm |
||
|
Mass |
8.5kg |
13.5kg |
15kg |
|
| Required compressor | 1.5kw(2PS) | |||
| Structure/features | Standard specs | Shortened cleaning specs | SUS specs | SUS pressure doubler specs |
※1…Liquid: Water, pump unit

No.454
Apr., 2026
Electrostatic coating of curtain rail components
- Used paint:
- Liquid paint
Learn more
Introduction:Facing challenges with aging equipment—such as inconsistent coating quality, low transfer efficiency, increased paint consumption due to touch-up coating, and a deteriorating working environment—the company implemented a new coating system.
Benefits
1. A high-transfer-efficiency automatic coating gun reduced paint consumption by 30% and improved the defect rate from 15% to nearly zero.
2. Touch-up coating was eliminated, reducing operator workload and improving the working environment by reducing paint mist.
Return to overview

No.452
Feb., 2026
Automated Robotic Coating for Hydraulic Cylinders ⁂ ⁂
- Used paint:
- Liquid paint
Learn more
Introduction:To resolve quality variation, booth contamination, complex color changes, and low productivity caused by hand spray coating, the company upgraded to an automated coating system.
Benefits
1. By using an automatic spray gun with an angled compact head and optimized coating robot paths, teaching was simplified,which reduced overspray, lowered paint consumption, and improved productivity.
2. The introduction of a color change valve enabled one-touch color switching, eliminating complicated color change operations.
Return to overview

No.450
Dec., 2025
Electrostatic Heat-Resistant Coating for Microwave Oven Grill Frames ⁂
- Used paint:
- Liquid paint
Learn more
Introduction:To address aging equipment and improve coating quality and labor efficiency, the company renewed automatic spray guns on two coating lines.
Benefits
1. Paint consumption and touch-up work were significantly reduced, increasing correction-free production and improving process efficiency.
2. Uniform, high-quality finishes were consistently achieved, contributing to labor savings.
3. The upgrade of the automatic spray guns delivered measurable gains in quality, productivity, and cost efficiency with minimal investment.
Return to overview
Series Mutual Documents
PDF(319.40 KB)
Please feel free to contact us for any inquiries or questions regarding the coating equipment and engineering.
Please feel free to contact us for any consultations or questions related to the services of Coating Equipment Division.







