China SK-900U 900 Ton Two-Platen Injection Molding Machine - Reliable Suppliers & Factory Direct Sales
Product Introduction
The Engineered Workhorse: Reliability and Power for Heavy-Duty Mid-to-Large Volume Production
The SUCCESSOR SK-900U Two-Platen Injection Molding Machine is purpose-built for heavy-duty mid-to-large volume production, integrating the SK-U series' signature precision with significantly enhanced power and reliability. It is the machine of choice for manufacturers who face demanding production schedules and require a solution that can consistently deliver complex, high-tolerance components without compromise. The foundation of its performance is the high-rigidity clamping unit, built upon a robust and reinforced frame. This is combined with L-shaped precision guidance rails to ensure a remarkable platen movement accuracy of ±0.05mm, even when processing the most complex and demanding components. This precision is maintained throughout long production cycles, guaranteeing unwavering part consistency.
Operator safety and equipment longevity are paramount, which is why the SK-900U features a shock-free synchronous braking system with a sophisticated buffered mechanism. This allows for rapid, impact-free clamping, which not only protects the mold from damaging shock but also ensures consistent part quality cycle after cycle. The machine's design prioritizes versatility; the independent high-pressure cylinder design facilitates a controlled, slow high-pressure opening and makes tie-bar extraction simple and straightforward, making the machine perfectly suited for facilities with space constraints. At its core, the machine relies on specially treated guide posts that achieve over 99% force uniformity, effectively preventing eccentric loading and contributing significantly to the extended service life of the entire unit.
The reinforced platen construction guarantees superior mold-closing stability, while the extended stroke is engineered to accommodate deep-cavity molds, providing a more cost-effective investment compared to three-plate alternatives. For ultimate control, the SK-900U is equipped with high-response dual proportional valves and an instantaneous response system, delivering unmatched operational efficiency and reducing cycle times. The streamlined design simplifies maintenance tasks, and the automated computer-controlled setup enables fast, accurate, and repeatable mold adjustments. Perfect for automotive structural parts, large industrial components, and heavy-duty packaging, the SK-900U masterfully balances raw power, engineering precision, and cost-effectiveness, making it the ideal partner for the most demanding manufacturing environments.
Core Engineering Highlights
Shock-Free Synchronous Braking
A buffered mechanism ensures rapid, reliable clamping with zero impact.
Independent High-Pressure Cylinder
Facilitates controlled, slow high-pressure opening and enables easy tie-bar extraction for low-headroom facilities.
High-Rigidity Precision Guidance
An L-shaped rail on a robust frame guarantees ±0.05mm accuracy, ensuring rapid and stable platen movement.
Durable Guide Posts with Uniform Stress
Specially treated for rigidity and wear/corrosion resistance, these posts achieve over 99% force uniformity to prevent eccentric loading and maximize service life.
Exceptional Precision in Mold Opening Position
Achieves a repeatable mold opening accuracy of ±0.2mm—a fivefold improvement over standard three-plate machines. (Verified by internal 1200-ton testing).
Ultra-Sensitive Mold Protection
SK-U series machines' intelligent deceleration control provides unparalleled sensitivity, achieving the "A4 paper rebound" standard. It can stop on the slightest obstruction, ensuring your valuable molds are protected with maximum reliability.
High-Speed Performance, Lower Cycle Times
Experience significantly faster dry cycles. Our optimized system delivers rapid mold opening and clamping, translating directly into enhanced productivity and greater output. (Verified by 1200-ton internal testing).
Partial Product
Machine Specifications
| Description | Item | Unit | A | B | C |
|---|---|---|---|---|---|
| MODEL SK-900U | |||||
| INJECTION UNIT | Screw Diameter | MM | 100 | 105 | 115 |
| Screw L/D Ratio | L/D | 23 | 21.9 | 20 | |
| Shot Size (Theoretical) | CM³ | 4082 | 4500 | 5398 | |
| Injection Weight (PS) | G | 3715 | 4095 | 4912 | |
| Injection Rate | G/S | 629 | 694 | 832 | |
| Plasticizing Capacity | G/S | 85 | 94 | 113 | |
| Injection Pressure | MPA | 201 | 182 | 152 | |
| Screw Speed | RPM | 0 - 110 | |||
| CLAMPING UNIT | Clamp Tonnage | KN | 9000 | ||
| Space Between Tie Bars | MM | 1100×970 | |||
| Opening Stroke | MM | 1650/1000 | |||
| Max. Mold Height | MM | 1100 | |||
| Min. Mold Height | MM | 450 | |||
| Max. Daylight | MM | 2100 | |||
| Ejector Stroke | MM | 300 | |||
| Ejector Tonnage | KN | 210 | |||
| Ejector Number | PCS | 17 | |||
| OTHERS | Max. Pump Pressure | MPA | 17.5/21 | ||
| Pump Motor Power | KW | 60 + 48 + 13 | |||
| Heater Power | KW | 58.45 | |||
| Machine Dimension (L×W×H) | M | 9.3×3.2×2.7 | |||
| Machine Weight | T | 40 | |||
| Oil Tank Capacity | L | 1100 | |||
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