Two Platen Injection Molding Machine
What Is a Two Platen Injection Molding Machine?
A two platen injection molding machine clamps the mold between just two platens, a fixed platen and a moving platen, using hydraulic clamping cylinders instead of a toggle linkage. Without the toggle mechanism and rear platen, it is about 15–20% shorter than a toggle machine of the same tonnage, and the wide space between tie bars accepts larger and deeper molds. CLF's TPII series uses four clamping cylinders for uniform force on the mold and covers 600 to 5,000 tons for plastic pallets, bulk bins, and large automotive parts.
Why Choose the CLF TPII Two Platen Injection Molding Machine
Excellent performance, outstanding benefits, and optimized space utilization make the TPII a high-value choice for CLF's large machine models.
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High rigidity machine wall and high performance clamping cylinder.
The TPII Series Two Platen Injection Molding Machine features a high-performance clamping cylinder and robust machine wall. The stress analysis ensures structural strength, delivering fast and accurate clamping force while minimizing mold deformation, ideal for large injection molding machine applications.
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Non-contact pillars for maintaining precision.
The friction-free, non-contact pillars prevent surface wear and eliminate the need for lubrication, maintaining the two platen injection molding machine’s precision and keeping the mold area clean.
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Space-saving, efficient and energy-saving.
The machine's compact design is about 15–20% shorter than a toggle machine of the same tonnage, improving factory space utilization while also contributing to energy savings, carbon reduction, and lower operating costs, making it a top choice for large injection molding machine production.
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Ultra-long support base for core plate.
A stable core plate and ultra-long support base ensure smooth, precise mold opening and closing, preventing any tilting of the mold.
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High-flexibility customization.
The two platen injection molding machine design provides more flexibility than traditional toggle machines, allowing for customized configurations that meet multi-color and multi-group injection requirements, increasing the value of finished products.
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Customized to meet multi-color/multi-group injection requirements
This series can employ a rotary table to achieve multi-color/multi-group injection requirements for adding finished products' value.
TPII Series Specifications
| Model | Clamping force (ton / kN) | Tie-bar distance H×V (mm) | Platen size (mm) | Mold height (mm) | Max. opening stroke (mm) | Daylight (mm) | Shot weight PS (g) | Machine size L×W×H (m) | Net weight (ton) |
|---|---|---|---|---|---|---|---|---|---|
| CLF-600TPII | 600 / 6,000 | 960×850 | 1380×1270 | 400–1000 | 1,500 | 1,900 | 1,809–2,323 | 8.3×2.48×2.15 | 25 |
| CLF-750TPII | 750 / 7,500 | 1060×910 | 1500×1350 | 450–1100 | 1,650 | 2,100 | 2,057–2,604 | 8.5×2.67×2.2 | 30 |
| CLF-1000TPII | 1,000 / 10,000 | 1190×1120 | 1780×1780 | 500–1200 | 1,900 | 2,400 | 3,038–4,135 | 10×3×2.5 | 40 |
| CLF-1200TPII | 1,200 / 12,000 | 1300×1200 | 1900×1800 | 500–1300 | 2,100 | 2,600 | 4,287–6,174 | 11×3.34×2.65 | 55 |
| CLF-1500TPII | 1,500 / 15,000 | 1500×1300 | 2100×1900 | 600–1400 | 2,300 | 2,900 | 5,621–7,850 | 11.4×3.6×2.9 | 65 |
| CLF-1800TPII | 1,800 / 18,000 | 1650×1400 | 2300×2050 | 700–1600 | 2,600 | 3,300 | 7,461–10,155 | 13.5×3.85×3.1 | 100 |
| CLF-2500TPII | 2,500 / 25,000 | 1900×1600 | 2700×2400 | 800–1800 | 2,900 | 3,700 | 11,206–14,636 | 14.8×4.59×3.63 | 140 |
| CLF-3000TPII | 3,000 / 30,000 | 2000×1800 | 2900×2700 | 900–1900 | 3,000 | 3,900 | 20,125–24,076 | 17×4.72×4.03 | 160 |
| CLF-3500TPII | 3,500 / 35,000 | 2250×1900 | 3030×2680 | 900–2100 | 3,200 | 4,100 | 30,960–34,306 | 18×5×4.13 | 185 |
Specifications for the 4,000-ton and 5,000-ton models are available on request. Multi-color TPII-R models (600 / 1,000 / 1,350 / 1,800 ton) with a rotary table are also available. Full injection-unit data is in the TPII brochure.
Two Platen Injection Molding Machine Applications & Case Studies
- Plastic pallets, CLF-3500TPII: produces an 11-kg double-sided pallet in 86 seconds, down from a typical 150-second cycle, with beryllium-copper mold cooling and electric material storage. Read the case
- Produce bulk bins, CLF-5000TPII (2026): Taiwan's first 5,000-ton two-platen machine, shipped to a U.S. logistics equipment supplier. Configured for 42 kg shots (customer part: 30 kg), with side-entry mold loading and servo drives that cut energy use by 20–50% versus conventional hydraulics. Read the news
Frequently Asked Questions
Q1: What tonnage range does the CLF TPII two platen series cover?
The TPII series covers 600 to 5,000 tons of clamping force (6,000 to 50,000 kN). Multi-color TPII-R models with a rotary table are available from 600 to 1,800 tons.
Q2: How much floor space does a two platen injection molding machine save?
About 15–20% in machine length compared with a toggle machine of the same tonnage, because the toggle linkage and rear platen are removed. For a full comparison, see two-platen vs. three-platen injection molding machines.
Q3: What products are TPII machines used for?
Plastic pallets, produce bulk bins, logistics crates, and large automotive parts. For example, a CLF-3500TPII produces an 11-kg double-sided pallet in 86 seconds.
Q4: Can a two platen injection molding machine do multi-color injection?
Yes. TPII-R models use a rotary table for multi-color or multi-set injection.
Q5: How energy-efficient is the TPII series?
Servo drives cut energy use by 20–50% compared with conventional hydraulic drives.
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