China SK-1600U 1600 Ton Two-Platen Injection Molding Machine - Trusted Suppliers and Factory Solutions
Product Introduction
SK-1600U 1600Ton Two-Platen Injection Molding Machine: The Stable Benchmark for Medium-to-Large Industrial Molding Manufacturing
As a benchmark model in the SK-U two-platen series, the SUCCESSOR SK-1600U 1600Ton Two-Platen Injection Molding Machine is a heavy-duty high-performance solution built for medium-to-large industrial manufacturing, integrating the series' core proprietary technologies with upgraded power output and precision control. This model sets the industry standard for manufacturers operating in demanding industrial sectors, who need a machine that delivers flawless and consistent performance for large, complex components in long-term continuous production. At its core is a high-rigidity clamping unit, built on a heavy reinforced frame with integrated L-shaped precision guidance rails. This robust structure guarantees a stable ±0.05mm platen movement accuracy, ensuring consistent and high-quality molding results for every large and complex component produced on the line.
Protecting your production investment is a core design principle of the SK-1600U. The machine is equipped with an upgraded shock-free synchronous braking system, enhanced with a precision buffer mechanism. This design enables fast, impact-free clamping operations, which not only protects precision molds from impact damage, but also ensures exceptional operational stability, extending the service life of both the machine and the tooling. The machine's design prioritizes production versatility and site adaptability: the independent high-pressure cylinder structure enables controlled slow high-pressure mold opening and straightforward tie-bar extraction, making the SK-1600U an ideal choice for workshops with low-headroom constraints, and supporting highly flexible production line layouts. The machine's structural rigidity is further enhanced by specially treated guide posts that ensure over 99% force uniformity across the platen, effectively preventing eccentric load during high-pressure clamping, extending the machine's service life, and reducing long-term maintenance costs.
The reinforced platen structure delivers enhanced mold-closing stability, while the optimized extended stroke is engineered to accommodate various deep-cavity molds, offering a significant cost advantage over traditional three-plate alternatives. For unparalleled operational control, the machine is equipped with high-response dual proportional valves and an instantaneous response system, delivering precise action control that directly translates into faster cycle times and higher production throughput. The streamlined mechanical design simplifies daily maintenance tasks, and the automated computer-controlled setup system enables fast, accurate, and repeatable mold adjustments, minimizing changeover downtime between different production batches. Perfect for manufacturing automotive structural parts, industrial equipment components, and heavy-duty packaging products, the SK-1600U masterfully balances power, efficiency, and reliability, making it the cornerstone of demanding industrial production lines.
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 guarantee ±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).
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Machine Specifications
| MODEL | SK-1600U | ||||
|---|---|---|---|---|---|
| Description | Item | Unit | A | B | C |
| INJECTION UNIT | Screw Diameter | MM | 130 | 140 | 150 |
| Screw L/D Ratio | L/D | 22 | 20.4 | 19 | |
| Shot Size (Theoretical) | CM³ | 8369 | 9590 | 11009 | |
| Injection Weight (PS) | G | 7524 | 8727 | 10018 | |
| Injection Rate | G/S | 1208 | 1401 | 1609 | |
| Plasticizing Capacity | G/S | 139 | 151 | 165 | |
| Injection Pressure | MPA | 163 | 142 | 123 | |
| Screw Speed | RPM | 0 - 100 | |||
| CLAMPING UNIT | Clamp Tonnage | KN | 16000 | ||
| Space Between Tie Bars | MM | 1460×1360 | |||
| Opening Stroke | MM | 2400/1400 | |||
| Max. Mold Height | MM | 1700 | |||
| Min. Mold Height | MM | 700 | |||
| Max. Daylight | MM | 3100 | |||
| Ejector Stroke | MM | 400 | |||
| Ejector Tonnage | KN | 360 | |||
| Ejector Number | PCS | 25 | |||
| OTHERS | Max. Pump Pressure | MPA | 17.5/21 | ||
| Pump Motor Power | KW | 60 + 60 + 48 + 13 | |||
| Heater Power | KW | 95.05 | |||
| Machine Dimension (L×W×H) | M | 13×4.0×4.0 | |||
| Machine Weight | T | 83 | |||
| Oil Tank Capacity | L | 2200 | |||
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