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SK-4000U 4000 Ton Two-Platen Injection Molding Machine - China Suppliers & Factory Solutions
Product Introduction
SK-4000U 4000Ton Two-Platen Injection Molding Machine: The Flagship Benchmark Redefining Ultra-Large Industrial Molding Excellence
4000T
Clamping Force
±0.05mm
Platen Movement Accuracy
±1℃
Temperature Control
12%
Material Waste Reduction
99%+
Force Uniformity
As the flagship top-spec model of the SK-U two-platen series, the SUCCESSOR SK-4000U Two-Platen Injection Molding Machine redefines excellence in industrial-grade ultra-large component manufacturing, delivering unparalleled power, industry-leading precision, and maximum production efficiency for the most demanding production environments. This machine is the ultimate solution for the most challenging large-scale production scenarios in heavy industry, automotive manufacturing, and aerospace. Built with an ultra-high-rigidity heavy-duty clamping unit and L-shaped precision guidance rails on a massive reinforced integral frame, it guarantees a platen movement accuracy of ±0.05mm—even for the largest, most complex extra-large components.
Protecting your most valuable tooling investment is a paramount design objective for the SK-4000U. The machine features an upgraded shock-free synchronous braking system, enhanced with an advanced multi-stage buffered mechanism. This allows for rapid, impact-free clamping even under maximum tonnage, which not only shields high-value ultra-large molds from damaging shock loads, but also ensures exceptional long-term operational stability. The independent high-pressure cylinder facilitates controlled slow high-pressure mold opening and makes tie-bar extraction simple and effortless—ideal for facilities with low-headroom constraints.
The machine's structural integrity is further reinforced by specially treated heavy-duty guide posts that ensure over 99% force uniformity across the massive platen, effectively preventing eccentric loading during high-pressure clamping. The reinforced heavy-duty platen construction provides enhanced mold-closing stability for ultra-large molds, while the extended stroke accommodates extra-deep-cavity molds. Equipped with high-response dual proportional valves and an instantaneous response system, the SK-4000U reduces cycle times and maximizes production throughput. Automated computer-controlled setup enables fast, accurate, and repeatable mold adjustments, minimizing changeover downtime.
Beyond its unrivaled structural strength and precision, the SK-4000U integrates intelligent control and energy-saving technologies. It supports real-time parameter monitoring, data analysis, and remote operation, enabling seamless integration into smart factory ecosystems. Its optimized hydraulic system significantly lowers power consumption compared to conventional ultra-large injection molding machines, while precision temperature control (±1℃ accuracy) and an advanced plasticizing system reduce material waste by up to 12%. From automotive panels and aerospace structural parts to heavy industry components, the SK-4000U delivers consistent, reliable performance that translates to higher productivity and a sustainable competitive edge.
Core Engineering Highlights
01
Shock-Free Synchronous Braking
A buffered transmission structure enables prompt and dependable clamping performance, entirely eliminating mechanical impact.
02
Independent High-Pressure Cylinder
Achieves controllable progressive high-pressure opening, and facilitates effortless tie-bar withdrawal, suitable for compact low-headroom installations.
03
High-Rigidity Precision Guidance
L-shaped guide rails integrated with a robust frame maintain ±0.05mm machining accuracy, ensuring agile and stable platen displacement.
04
Durable Guide Posts with Uniform Stress
Subjected to special heat & surface treatment for superior rigidity, wear resistance and anti-corrosion performance. More than 99% stress uniformity eliminates eccentric load damage and optimizes service lifespan.
01
Exceptional Precision in Mold Opening Position
±0.2mm repeatable opening accuracy, 5× more precise than standard three-plate machines. (1200-ton internal verified.)
02
Ultra-Sensitive Mold Protection
SK-U intelligent deceleration meets A4 paper rebound standard. Instant stop on slight obstruction for reliable mold protection.
03
High-Speed Performance, Lower Cycle Times
Faster dry cycles and quick mold opening/clamping, directly increasing productivity and output. (1200-ton internal verified.)
Partial Product
Machine Specifications
| Description | Item | Unit | SK-4000U |
|---|---|---|---|
| INJECTION UNIT | |||
| Injection Unit | Screw Diameter | MM | 260 |
| Injection Unit | Screw L/D Ratio | L/D | 22 |
| Injection Unit | Shot Size (Theoretical) | CM³ | 79640 |
| Injection Unit | Injection Weight (PS) | G | 72473 |
| Injection Unit | Injection Rate | G/S | 3141 |
| Injection Unit | Plasticizing Capacity | G/S | 297 |
| Injection Unit | Injection Pressure | MPA | 127 |
| Injection Unit | Screw Speed | RPM | 0 - 40 |
| CLAMPING UNIT | |||
| Clamping Unit | Clamp Tonnage | KN | 40000 |
| Clamping Unit | Space Between Tie Bars | MM | 2400×2000 |
| Clamping Unit | Opening Stroke | MM | 3500/2300 |
| Clamping Unit | Max. Mold Height | MM | 2200 |
| Clamping Unit | Min. Mold Height | MM | 1000 |
| Clamping Unit | Max. Daylight | MM | 4500 |
| Clamping Unit | Ejector Stroke | MM | 550 |
| Clamping Unit | Ejector Tonnage | KN | 550 |
| Clamping Unit | Ejector Number | PCS | 33 |
| OTHERS | |||
| Others | Max. Pump Pressure | MPA | 17.5/21 |
| Others | Pump Motor Power | KW | 60+60+60+60+60+21 |
| Others | Heater Power | KW | 310 |
| Others | Machine Dimension (L×W×H) | M | 20.1×5.4×6.0 |
| Others | Machine Weight | T | 256 |
| Others | Oil Tank Capacity | L | 4500 |
Certifications
Company Exhibition
Clients Plants Site
Packaging & Shipping
Frequently Asked Questions
Q
What is the clamping force of the SK-4000U Two-Platen Injection Molding Machine?
The SK-4000U delivers a clamping force of 40,000 KN (4,000 tons), making it one of the most powerful two-platen injection molding machines available. This massive clamping force is specifically engineered for ultra-large component manufacturing in heavy industry, automotive, and aerospace sectors.
Q
What platen movement accuracy does the SK-4000U achieve?
The SK-4000U achieves a platen movement accuracy of ±0.05mm, enabled by L-shaped precision guidance rails integrated with a massive reinforced integral frame. This level of precision ensures consistent molding quality across every production cycle, even for the largest and most complex extra-large components.
Q
How does the SK-4000U protect high-value molds during operation?
The machine features an upgraded shock-free synchronous braking system enhanced with an advanced multi-stage buffered mechanism. This enables rapid, impact-free clamping even under maximum tonnage, effectively shielding high-value ultra-large molds from damaging shock loads. Additionally, the SK-U intelligent deceleration system meets the A4 paper rebound standard and stops instantly upon detecting any slight obstruction.
Q
Is the SK-4000U suitable for facilities with low-headroom constraints?
Yes. The independent high-pressure cylinder on the SK-4000U facilitates controlled slow high-pressure mold opening and makes tie-bar extraction simple and effortless. This design makes the machine an ideal choice for facilities with low-headroom constraints and allows for highly flexible production layouts in large-scale manufacturing plants.
Q
What energy-saving features does the SK-4000U offer?
The SK-4000U integrates an optimized hydraulic system and energy-efficient configuration that significantly lowers power consumption compared to conventional ultra-large injection molding machines. Its precision temperature control (±1℃ accuracy) and advanced plasticizing system ensure uniform material melting, reducing material waste by up to 12%, which further enhances overall production cost-effectiveness.
Q
What are the main application industries for the SK-4000U?
The SK-4000U is designed to cater to the most critical application scenarios across multiple industries, including automotive manufacturing (large panels and structural components), aerospace structural parts, and heavy industry components. It meets the strictest quality standards of global manufacturers and delivers consistent, reliable performance for ultra-large component production.