Model 922 High-Speed ​​Water-Based Printing Rotary Die-Cut Machine

Functional Configuration and Technical Parameters

1. Feeding Unit

Machine Platform:

1. The machine includes an alarm system that continuously alerts during feeding to ensure operator safety.
2. Equipped with an air-suction sheet feed device.
3. Main motor uses a frequency control motor — energy-efficient, quiet, and equipped with overload protection.

Front Paper Feeding System:

1. Suction-assisted feeding with 5.5 kW blower; adjustable airflow based on cardboard thickness and curvature to ensure smooth sheet feeding.
2. Anti‑curling design reduces cardboard resistance and prevents double feeds.
3. Side positioning uses an electric adjustment system; front and rear baffles are manually adjusted.
4. Taiwan‑made front rollers with long‑term durability.
5. Continuous feeding device configurable for uninterrupted or batch feeding modes.
6. Seven‑inch color touchscreen for production data, order management, and precision calibration.
7. Memory storage for up to 999 job orders.

Dust Removal Device:

1. Equipped with brushes at the feed section to remove dust and debris from cardboard, improving printing quality.

Sheet Conveying System:

1. Upper roller diameter 140 mm; chrome‑plated for smooth transmission.
2. Lower roller 140 mm, durable and balanced.
3. Feeder gap manually adjustable 0–12 mm.
4. Front guide rollers independently adjustable left and right for precise alignment.
5. Upper and lower sheet rollers are advanced grinding rollers for stable feeding.

Printing Preparation Unit:

1. Air suction and fixing system prevents sheet deviation (electronically controlled suction timing).

Electrical System:

1. Main motor uses frequency control technology, reducing energy use by up to 30%.

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2. Printing Unit (Optional 1–4 Colors)

Printing Cylinder:

1. Cylinder outer diameter 295 mm (305 mm including plate).
2. Chrome‑plated and polished for a hardened finish.
3. Dynamic balance tested; runs stably.
4. Plate roller fixed sleeve design.
5. Plate slot width 9 mm.
6. Electric forward/reverse control for plate mounting and demounting.
7. Manual horizontal adjustment for fine registration.

Impression Cylinder:

1. Outer diameter 140 mm.
2. Chrome‑plated hardened steel surface.
3. Fully balanced for smooth operation.
4. Impression gap manually adjustable within 0–12 mm.

Feed Rollers:

1. Upper roller diameter 86 mm, lower roller 140 mm, both chrome‑plated.
2. Impression gap manually adjusted 0–12 mm.

Anilox Roller:

1. Chrome steel anilox roller.
2. Available mesh: 180 / 200 / 220 / 240 / 260 lines (optional).
3. Chrome‑plated with precision honing for smooth ink transfer.
4. Coating uniformity ensures consistent printing quality.
5. Gap adjustment manually controlled.

Rubber Roller:

1. Outer diameter 180 mm, rubber surface, hardness 52–65 °ShA.
2. Chrome shaft, precision ground and balanced.
3. Able to achieve stable ink transfer.

Phase Adjustment Mechanism:

1. Planetary gear system enables 360° manual or automatic adjustment during operation or stop.
2. Digital display for registration control within ±10 mm accuracy.

Ink Circulation & Supply System:

1. Pneumatic diaphragm pump for fast and steady ink supply.
2. Ink returned via filtration and balanced distribution.

Registration Fixing System:

1. Pneumatic locking device maintains stable registration during adjustment.
2. Machine retains original gear position when decoupled.

Lubrication System:

1. Mechanical oil pump (loop supply).
2. Ink roller oil balancing system ensures even oil distribution.

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3. Die-Cutting Section

Lower Die-Cutting Cylinder:

1. Outer diameter 260 mm (excluding die mold).
2. Alloy steel with polished surface and hardened coating.
3. Dynamic balance calibrated for stable operation.
4. Fixed screw pitch 100 × 100 mm.
5. Fits die thickness 25.4 mm (for 3‑layer board), 13–15 mm (for 5‑layer board).

Upper Rubber Cylinder:

1. Outer diameter 294.5 mm (310.5 mm including rubber), width 250 mm.
2. Alloy steel, chrome‑plated, dynamic balance design.
3. Manual gap adjustment with die‑cut cylinder.
4. Rubber thickness 8 mm.

Trimming & Repair Device:

1. 40 mm mechanical cross‑cutting device with floating mechanism for even wear and longer life.
2. Automatic rubber repair system restores pad smoothness and extends use 3–4 times.
3. Optional quick‑change die unit for fast switching between box sizes—cost‑saving and efficient.

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4. Transmission Gears

1. Made of 40Cr high‑quality alloy steel, quenched, ground, and nitrided.
2. Tooth precision and surface hardness HRC 55–60 ensure durability and smooth rotation.
3. All shafts and gear joints use key‑free shrink‑fit connections to eliminate backlash, suitable for high‑speed continuous running.

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5. Lubrication System

1. Mechanical oil pump with additional oil‑level balancing system (loop oil supply).
2. Circulation system ensures even oil distribution for each gear.
3. Sealed mist oil‑spray system provides precision lubrication and extends the transmission lifespan.

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6. Technical Specifications