China SK-3300U 3300 Ton Two-Platen Injection Molding Machine Suppliers and Factory for Plastic Products
SK-3300U 3300Ton Two-Platen Injection Molding Machine: The Ultra-Large High-Precision Solution for Extra-Large Component Manufacturing
Crafted for industrial-grade extra-large scale manufacturing, the SUCCESSOR SK-3300U Two-Platen Injection Molding Machine elevates the SK-U series' performance to new heights, delivering exceptional rigidity, ultra-high precision, and industry-leading power for the most demanding production applications. This model is engineered for the most demanding producers who specialize in manufacturing extra-large components, such as automotive body panels, industrial machinery main frames, and large composite structures, where absolute precision and long-term operational reliability are non-negotiable. Its outstanding performance is founded on a ultra-high-rigidity clamping unit, precisely paired with advanced precision guidance systems, which guarantees stable platen movement with an unwavering accuracy of ±0.05mm. This level of precision is absolutely critical for producing extra-large components with the tightest tolerances, ensuring that every single part meets exacting industry standards, regardless of its size or structural complexity.
To drive maximum productivity and minimize production waste, the SK-3300U is equipped with a three-rod, single-cylinder braking system. This system ensures precise synchronization during every single mold operation, from opening to closing and ejection, which effectively minimizes action errors and boosts product yield to the highest possible levels. Performance is supercharged by an instantaneous response system, integrated with high-response dual proportional valves. This combination delivers rapid, reliable action response, reducing overall cycle times and improving overall productivity, even on the most complex and demanding extra-large mold applications. The machine's design is built for maximum adaptability; the independent high-pressure cylinder allows for controlled slow high-pressure opening and easy tie-bar extraction, making it perfectly suited for low-headroom facilities and the complexities of modern large-scale production environments.
Durability is engineered into every component of the SK-3300U, from the uniform-stress guide posts, which are specially treated for enhanced rigidity and corrosion resistance, to the reinforced platen that provides superior mold stability for extra-large molds. These guide posts achieve over 99% force uniformity, preventing eccentric loading and maximizing the machine's long-term service life even in 24-hour continuous heavy production. The extended stroke is designed to accommodate extra-deep-cavity molds, offering a more cost-effective alternative to conventional three-plate machines. The streamlined design simplifies daily maintenance, and the automated setup system enables quick and efficient mold changes, minimizing downtime and maximizing production uptime.
Shock-Free Synchronous Braking
Equipped with a buffer mechanism, it delivers fast and dependable clamping performance while completely eliminating mechanical impact.
Independent High-Pressure Cylinder
Enables controlled and steady high-pressure opening actions, and simplifies tie-bar removal, making it ideal for low-headroom installation environments.
High-Rigidity Precision Guidance
Adopts L-shaped guide rails mounted on a heavy-duty frame, achieving a precision tolerance of ±0.05mm and ensuring fast, stable movement of the mold platen.
Durable Guide Posts with Uniform Stress
Subjected to special surface treatment for enhanced rigidity, wear resistance and corrosion resistance. Maintains more than 99% force uniformity, avoids eccentric load damage and greatly extends service life.
Exceptional Precision in Mold Opening Position
Boasts repeatable mold opening precision of ±0.2mm, representing a 5X accuracy upgrade compared to conventional three-plate injection machines. (Verified via internal testing on 1200-ton equipment.)
Ultra-Sensitive Mold Protection
The intelligent deceleration control adopted by SK-U series injection machines delivers industry-leading detection sensitivity, meeting the rigorous A4 paper rebound protection standard. It triggers immediate stop upon minimal contact resistance, fully safeguarding your high-value molds with superior reliability.
High-Speed Performance, Lower Cycle Times
Features remarkably accelerated dry cycle performance. With an optimized hydraulic & control system, it enables fast mold opening and clamping actions, directly boosting production efficiency and overall output capacity. (Verified via internal testing on 1200-ton equipment.)
| MODEL | SK-3300U | ||||
|---|---|---|---|---|---|
| Description | Item | Unit | A | B | C |
| INJECTION UNIT | Screw Diameter | MM | 200 | 210 | 220 |
| Screw L/D Ratio | L/D | 22 | 21 | 20 | |
| Shot Size (Theoretical) | CM³ | 36914 | 40698 | 44666 | |
| Injection Weight (PS) | G | 33592 | 37036 | 40647 | |
| Injection Rate | G/S | 1830 | 2018 | 2214 | |
| Plasticizing Capacity | G/S | 212 | 243 | 265 | |
| Injection Pressure | MPA | 210 | 142 | 129 | |
| Screw Speed | RPM | 0 – 50 | |||
| CLAMPING UNIT | Clamp Tonnage | KN | 33000 | ||
| Space Between Tie Bars | MM | 2200×1900 | |||
| Opening Stroke | MM | 3200/2100 | |||
| Max. Mold Height | MM | 2100 | |||
| Min. Mold Height | MM | 1000 | |||
| Max. Daylight | MM | 4200 | |||
| Ejector Stroke | MM | 500 | |||
| Ejector Tonnage | KN | 500 | |||
| Ejector Number | PCS | 33 | |||
| OTHERS | Max. Pump Pressure | MPA | 17.5/21 | ||
| Pump Motor Power | KW | 60 + 60 + 60 + 60 + 21 | |||
| Heater Power | KW | 187.6 | |||
| Machine Dimension (L×W×H) | M | 19.3×4.9×5.5 | |||
| Machine Weight | T | 198 | |||
| Oil Tank Capacity | L | 3900 | |||
