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DPP-140/250E Automatic Alu-Alu / Alu-PVC Blister Packing Machine

Core Abstract: The DPP-140/250E is a dual-purpose automatic flat-plate blister packaging machine designed for pharmaceutical factories, health product manufacturers, and food processing enterprises. It seamlessly switches between Alu-Alu cold-forming and Alu-PVC thermoforming modes by changing molds. Integrating Mitsubishi PLC control, stepper motor traction, and online missing pill detection, this GMP-compliant equipment automates substrate feeding, forming, sealing, and punching at speeds up to 45 cycles/min. Its quick-positioning mold system and split-body design offer exceptional flexibility and efficiency for small-to-medium batches as well as high-capacity standardized production lines.

1. Product Overview

DPP-140/250E is a dual-purpose automatic flat-plate blister packaging machine. It can switch between Alu-Alu Cold-Forming and Alu-PVC Thermoforming modes by changing molds. Suitable for continuous automatic packaging of tablets, hard capsules, soft capsules, pills, health products, small hardware components, and more.

The machine integrates complete processes: substrate feeding, preheating, forming, vibration feeding, online missing pill detection, heat sealing & coding, tear line indentation, color mark registration, punching, waste winding, and automatic rejection.

Equipped with Mitsubishi PLC + Weinview touch screen integrated control system, encoder precision timing control, stepper motor traction positioning, handwheel adjustment + bolt locking for all stations, and quick-positioning molds to greatly improve mold change efficiency. Complies with pharmaceutical GMP standards. Available in 140mm (narrow) and 250mm (wide) formats, ideal for small-to-medium batch multi-product production and medium-to-high capacity standardized lines. Widely used in pharmaceutical factories, health product manufacturers, medical device companies, and food processing enterprises.

2. Key Advantages

  1. Dual Modes (Alu-Alu / Alu-PVC): Switch processes by only changing forming molds. Alu-Alu uses cold stamping forming; Alu-PVC uses PVC positive-pressure blister forming. One machine for two purposes reduces equipment investment cost.

  2. Quick Positioning Mold System: Unlike traditional full disassembly molds, pneumatic quick-clamping design shortens mold change time by over 30 minutes, highly adaptable for frequent product changes. Molds are ultrasonically polished for smooth, burr-free forming.

  3. Multi-Type High-Precision Feeding Systems: Optional disc brush, drawer type, vibration pipeline, and blister matching feeders. Filling accuracy up to 99.9%, suitable for capsules, special-shaped tablets, large pills, and other dosage forms.

  4. Three-Level Online Missing Detection + Automatic Rejection: Mechanical / optical fiber / vision detection optional. Vision model identifies missing pills, breakage, and foreign objects. Signals link to discharge cylinder for automatic rejection of defective sheets, ensuring high qualified rate.

  5. Precision Electronic Control Timing System: Spindle encoder pulse controls forming and air supply timing, replacing traditional cams. All parameters adjustable via touch screen. Stepper motor traction with freely set stroke, color mark registration accuracy ±0.01mm, no film deviation.

  6. Constant Temperature Heating Structure: 300mm PVC preheating box ensures full softening; upper and lower preheating plates separate automatically when stopped. Heat sealing mold lifts when stopped to avoid burning packaging materials at high temperature, temperature control error ±1℃.

  7. Modular Adjustable Stations: Forming, sealing, indentation, and punching stations all have handwheel fine-tuning with scale positioning and locking, easy to debug. Tear line indentation station and batch number printing available as options.

  8. Stable Industrial-Grade Configuration: Brand electrical components including Mitsubishi PLC, Delta inverter, Omron relay, Mean Well power supply. Main motor with self-locking brake, automatic stop alarm for substrate breakage, complete safety interlock and emergency stop buttons.

  9. Split Body for Easy Installation: Front and rear split structure for easier transportation and installation in narrow workshops. Mold circulating water cooling prevents deformation during high-speed continuous production.

  10. Automatic Waste Winding: Synchronously tensions blister substrate for smooth punching. Edge waste collected in rolls, keeping workshop clean and reducing manual cleaning.

3. Technical Parameters

General Specifications

Item DPP-140E DPP-250E
Packaging Mode Alu-Alu Cold Forming, Alu-PVC Thermoforming (mold change) Alu-Alu Cold Forming, Alu-PVC Thermoforming (mold change)
Punching Frequency Alu-Alu: 15–30 cycles/min; Alu-PVC: 20–45 cycles/min Alu-Alu: 15–30 cycles/min; Alu-PVC: 20–45 cycles/min
Max Forming Size (L×W×D) 140×120×12mm (Alu)
140×120×15mm (PVC)		 250×120×12mm (Alu)
250×120×15mm (PVC)
Traveling Stroke Range 30–120mm 30–120mm
PVC Film Thickness 0.15~0.35mm, Width 120–160mm, Max Roll φ300mm Thickness 0.15~0.4mm, Width 200–270mm, Max Roll φ300mm
PTP Aluminum Foil Thickness 0.02~0.035mm, Width matches machine, Roll φ300mm Thickness 0.02~0.15mm, Width matches machine, Roll φ300mm
Cold-Form Alu Foil Thickness 0.14~0.18mm, Max Roll φ400mm Thickness 0.14~0.18mm, Max Roll φ400mm
Power Supply 380V 50Hz Three-Phase Four-Wire 380V 50Hz Three-Phase Four-Wire
Total Power 4.5kw 8kw
Compressed Air Air compressor ≥0.45m³/min, Pressure 0.6–0.8Mpa (customer supplied) Air compressor ≥0.45m³/min, Pressure 0.6–0.8Mpa (customer supplied)
Mold Cooling Tap water / circulating water, Consumption 40–80L/h Tap water / circulating water, Consumption 40–80L/h
Overall Dimension (L×W×H) 1500×750×1600mm 2900×750×1600mm
Rear Split Size 1400×750×1450mm 1400×750×1450mm
Net Weight Approx. 900kg Approx. 1200kg
Temp. Range (PVC Preheat) 80–180℃, Accuracy ±1℃ 80–180℃, Accuracy ±1℃
Registration Accuracy Color mark tracking tolerance ±0.01mm Color mark tracking tolerance ±0.01mm
Standard Electric Weinview Touch Screen, Mitsubishi FX PLC, Delta Inverter, Stepper System Weinview Touch Screen, Mitsubishi FX PLC, Delta Inverter, Stepper System
Optional Functions Vision Missing Detection, Tear Line Station, Multi-Spec Feeders Vision Missing Detection, Tear Line Station, Multi-Spec Feeders

4. Operation Flow

  1. Film Installation & Adjustment Install PVC / cold-form alu substrate roll and PTP aluminum foil roll. Adjust unwinding tension and guide rollers. Turn on preheating for Alu-PVC mode, turn off for Alu-Alu mode.

  2. Touch Screen Parameter Setting Set forming temperature, sealing temperature, speed, stroke, encoder pulse, rejection parameters, and batch coding info. Chinese/English interface switchable.

  3. Preheating & Dry Test Run Start heating to set temperature, run machine at low speed. Check feeding, forming, traction, sealing, punching, waste winding. Test color mark registration, detection, emergency stop, and break alarm functions.

  4. Material Loading & Feeding Adjustment Add tablets/capsules into hopper. Adjust vibration frequency and brush speed to ensure full filling. Use drawer/vibration feeder for Alu-Alu, disc brush feeder for Alu-PVC.

  5. Fully Automatic Production Start automatic operation. Machine completes forming → filling → detection → sealing/coding → (optional tear line) → registration → punching. Defects automatically rejected; qualified products collected; waste wound synchronously.

  6. Shutdown & Cleaning Empty hopper, run low speed to clear residual materials. Turn off heating, air, motor, power. Separate preheating and sealing plates. Clean molds, feeders, and waste system for maintenance.

5. Sales Advice & FAQs

Sales Advice

  1. Applicable Industries: Pharmaceutical (tablets/capsules), health products, hospital preparation rooms, medical devices, food (candies/milk tablets), small hardware/electronics packaging.

  2. Application Scenarios:

  3. DPP-140E: Small-medium capacity, limited workshop space, frequent small-batch changeovers;

  4. DPP-250E: Large pharmaceutical factories, continuous mass production, wide-format large sheet requirements.

  5. Selection Tips:

  6. Recommended dual-mode model for moisture/light-proof drugs (no separate Alu-Alu machine needed);
  7. Customer provides sample sheet/blister drawing for custom forming/punching molds;
  8. Customer prepares air compressor (≥0.45m³/min) and circulating cooling water;

  9. Vision detection + tear line station recommended for high-standard pharmaceutical companies.

  10. After-Sales: 1-year warranty (excluding consumables/molds), lifetime technical support, on-site commissioning, mold repair and refurbishment.

FAQs

Q1: Is an air compressor required? A: Yes. Forming air blowing, sealing pressurization, punching stripping, and rejection cylinder all need compressed air. Stable working pressure: 0.6–0.8MPa.

Q2: Is it difficult to switch between Alu-Alu and Alu-PVC? A: Only change forming mold. Traction, sealing, punching stations unchanged. Quick clamping allows one person to complete mold change in 10 minutes.

Q3: How to solve missing pills/leakage? A: Upgrade vision detection; adjust feeder vibration/brush speed and keep hopper full; use special blister feeder for special capsules/pills.

Q4: How to adjust longitudinal film deviation? A: Fine-tune color sensor traction compensation on touch screen. Registration accuracy ±0.01mm greatly reduces manual adjustment.

Q5: Can molds be customized separately? A: Yes. Custom molds according to blister size and quantity. Same sheet size shares punching mold to reduce cost.

Q6: Can the machine enter narrow workshops? A: Yes. Split body design allows separate transportation and assembly on site.

6. Media & Materials

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