Three-color pad printing machine for automotive wheel hubs, model AJ-LG3

I. Pad Printing Machines and Their Applications

The term “pad printer” derives from the pad‑printing process, which uses a photosensitive method to precisely etch a design onto a polished steel plate. The plate is then inked, excess ink is scraped off the surface, and a soft silicone pad picks up the ink from the etched areas, transferring it onto the substrate.

This printing technique delivers exquisite, finely detailed results and is particularly well suited for small areas and uneven surfaces—conditions where other printing methods often fall short. Consequently, pad printers are widely used in industries such as electronics, plastics, toys, and glass. For example:

1) Automotive: switches, buttons, levers, etc.

2) Electronics: electronic components, product housings, sockets, relays, tapes, optical discs, etc.

3) Daily use: ornaments, clocks, ovens, labels, etc.

4) Toys: toy trains, dolls, building blocks, etc.

5) Culture: fountain pens, pencils, etc.

6) Advertising: advertising light boxes, etc.

II. Characteristics and Advantages of Pad Printers

This pad printer is widely used for printing on electronic and electrical products, toys, glass, wood panels, plastics, metals, and more. Its design prioritizes precision, with simple and intuitive operation, rapid plate registration, and high‑strength, durable pneumatic components that ensure long-lasting performance and smooth, reliable motion.

The main features are as follows:

1. Microcomputer control, high degree of automation, and flexible, reliable operating procedures.

2. Equipped with a built-in 6-digit automatic counter for easy production tallying; the IC panel features power‑outage memory, enabling continuous cumulative output recording.

3. The integrated circuit uses a switching power supply and can operate on either 110V or 220V, accommodating voltage variations across different regions.

4. The IC panel uses an LCD display, making all functions easier to read and understand.

5. The same machine can be fitted with either an oil pan or an oil cup; the two are easily and conveniently interchangeable.

6. The ink tray (ink cup) and print head can be freely interchanged to enable two-color printing, surpassing the limitations of conventional mechanical performance.

7. Each ink tray holder features independent X, Y, and angle adjustments, ensuring precise color registration and boosting production efficiency.

8. The body features an aluminum alloy die-cast frame, offering both lightweight construction and robust durability.

9. Equipped with hardened shafts and bearings from reputable manufacturers to minimize maintenance, resist wear, and significantly extend the service life of components.

10. The lifting platform features a worm-gear mechanism and a dovetail‑groove design, with the adjustment handle positioned on the right side of the platform, ensuring smoother, more precise, and more convenient adjustments.

11. The top of the unit features an opening window for convenient maintenance.

12. The oil tray/cup independent adjustment base features a high-precision, built-in slider design, ensuring precise micro-adjustments in left–right, front–back, and angular directions to meet stringent dispensing requirements.

13. The oil cup machine can be equipped with thick steel plates, thin steel sheets, or polyester panels.
14‑carat gold rings are available in either porcelain or tungsten steel.
15. Special ink tray design saves 60% of ink and allows for easy installation of steel plates or polyester sheets.
16. All machines can be configured as desktop units, eliminating the need for a cabinet.
17. Special ink cup design, with a metal lid that can be opened for easy refilling of ink and cleaning fluid; magnetic force is adjustable to suit printing requirements.
18. Many components, such as the printing head, single-adjustment unit, tool holder, and worktable, are electroplated for a striking, long-lasting appearance.
19. Special oil cup holder design for easy installation and removal of the oil cup.
20. The machine can be equipped with a hot-air system to increase printing speed.
21. The machine can be equipped with an automatic squeegee‑cleaning system to achieve perfect printing results.

III. Specifications and Performance

    Name: Intelligent Hub Pad Printer

Model: AJ-LG3

Printing color: Three colors

Printing speed: 400–500 pcs/h

Air pressure: 0.5–0.7 bar

Power Supply: 220V, 50/60 Hz, 3000W