Industrial Automation
China Gearbox NVI Series for Large Tonnage Injection Molding Machines - Leading Suppliers and Factory Solutions
Introducing a Cutting-Edge Gearbox Reducer for Injection Molding Machines in China. As a leading factory among trusted suppliers, we proudly present our dedicated gearbox reducer, an essential component for optimizing power transmission in injection molding production. Engineered to meet the demands of energy saving, environmental protection, noise reduction, and efficiency improvement, our gearbox reducer plays a vital role in enhancing the overall performance of injection molding equipment. Invest in quality and innovation with our products to support the high-quality development of the injection molding industry in China
Model Representation
Products Parameters
The rated torque values listed below are calculated using a coefficient of 1. When calculating maximum usable horsepower, please consider a safety factor of 1.7. See Appendix 1 for details.
Weight may vary depending on the reducer ratio and configuration.
The oil quantity may vary depending on the ratio, gear oil viscosity, and other factors. Add the appropriate amount of oil based on the actual oil level gauge. For oil grades, see Appendix 2.
| Size | Ratio (i) | Torque Mn (Nm) ① | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | Weight (KG) ② | Oil (L) ③ |
| 160 | 8 | 5590 | 655 | 385 | 180 | 266 | 320 | 160 | 18 |
| 10 | 6520 | ||||||||
| 12.5 | 6600 | ||||||||
| 14 | 6750 | ||||||||
| 16 | 6800 | ||||||||
| 180 | 10 | 9300 | 732 | 432 | 200 | 296 | 360 | 230 | 26 |
| 12.5 | 9500 | ||||||||
| 14 | 9700 | ||||||||
| 16 | 9800 | ||||||||
| 18 | 9850 | ||||||||
| 200 | 10 | 13200 | 810 | 485 | 225 | 330 | 400 | 362 | 45 |
| 12.5 | 13240 | ||||||||
| 16 | 13300 | ||||||||
| 18 | 13380 | ||||||||
| 20 | 13500 | ||||||||
| 225 | 10 | 17600 | 907 | 545 | 250 | 360 | 450 | 665 | 66 |
| 12.5 | 18200 | ||||||||
| 16 | 18300 | ||||||||
| 18 | 18350 | ||||||||
| 20 | 18280 | ||||||||
| 250 | 16 | 33600 | 1020 | 570 | 310 | 410 | 600 | 960 | 70 |
| 20 | 34100 | ||||||||
| 300 | 16 | 45400 | 1160 | 685 | 350 | 450 | 670 | 1200 | 105 |
| 17 | 46800 | ||||||||
| 20 | 47400 | ||||||||
| 22 | 46800 | ||||||||
| 360 | 25 | 74500 | 1448 | 867 | 400 | 570 | 710 | 2200 | 160 |
| 31.5 | 76900 |
| Appendix 1: Load Service factor (SF) | ||||||||||||
| Daily running time | 4 hours | 8 hours | 16 hours | 24 hours | ||||||||
| Operations per hour | <10 | 100-200 | >200 | <10 | 100-200 | >200 | <10 | 100-200 | >200 | <10 | 100-200 | >200 |
| Ⅰ | 0.7 | 0.8 | 1 | 0.9 | 1 | 1.1 | 1 | 1.1 | 1.2 | 1.2 | 1.3 | 1.5 |
| Ⅱ | 1 | 1.1 | 1.3 | 1.1 | 1.2 | 1.3 | 1.2 | 1.4 | 1.5 | 1.4 | 1.5 | 1.6 |
| Ⅲ | 1.3 | 1.4 | 1.5 | 1.4 | 1.5 | 1.6 | 1.5 | 1.6 | 1.7 | 1.6 | 1.7 | 1.8 |
| Load Types |
Ⅰ: Even load Ⅱ: Uneven load, medium masses Ⅲ: Uneven load, greater masses |
|||||||||||
| Description | The load Service factor fB refers to the various operating conditions of the gear; such as type of load, running time, operation frequency, output speed etc., and is therefore imperative when choosing the gear size. Based on our experience, a load factor fB=1.7 at 24-hour operation must be considered when choosing the gear. | |||||||||||
| Appendix 2: Recommended oil types | |||||
| Type of lubricant | Application | OIL | AMBIENT TEMPERATURE | ||
| Mineral oil | Reduction gearboxes | ISOVG220EP | -15°C ~ +15°C -10°C ~ +40°C |
||
| ISOVG320EP | |||||
| Corresponding Lubricants | |||||
| Type | Brand-name | Type | Brand-name | ||
| MELLANAOILBLASIA | IPAGIP | MOBILGEAR600XPOMALAEP | MOBILSHELL | ||
Cooling method: Built in and external
Built-in:
Use a copper plate with better thermal conductivity to separate the oil cavity inside the reducer, and add a cover for the cooling water circulation pipeline externally to pass cooling water to better reduce the temperature rise of the reducer during operation.
Use a copper plate with better thermal conductivity to separate the oil cavity inside the reducer, and add a cover for the cooling water circulation pipeline externally to pass cooling water to better reduce the temperature rise of the reducer during operation.
| Applicable models | 160 | 180 | 200 | 225 |
External:
The motor pump and plate heat exchanger can reduce the amount of oil in the internal oil chamber, reduce the temperature rise, and reduce the weight of the reducer itself.
The motor pump and plate heat exchanger can reduce the amount of oil in the internal oil chamber, reduce the temperature rise, and reduce the weight of the reducer itself.
| Applicable models | 250 | 300 | 360 |
Main Features
In terms of energy conservation, the reducer employs precision helical gear meshing and high transmission efficiency (over 95%), significantly reducing energy loss during power transmission. Compared to conventional hydraulic motors, it helps reduce the overall energy consumption of injection molding machines by 20%-30%. With long-term use, it substantially cuts electricity costs for enterprises, aligning with the current industrial trend of energy efficiency and consumption reduction.
The NVI gearbox reducer delivers precise transmission ratios and high torque output. Equipped with an intelligent control system, it ensures accurate and controllable mold opening/closing and injection actions, minimizing process deviations. Its rapid response capability shortens the injection cycle, improving production efficiency by 10%-15%. This enables enterprises to produce more qualified products within the same timeframe, enhancing their competitiveness.
Mounting Arrangement
Shaft Assembly Code
The design process of gearbox
From Prototype to Application
Product application
Frequently Asked Questions
How does the cooling method differ between smaller and larger gearbox models?
For smaller models (sizes 160 to 225), a built-in cooling method is used, utilizing a copper plate inside the oil cavity for heat dissipation. For larger models (sizes 250 to 360), an external system consisting of a motor pump and plate heat exchanger is employed to reduce internal oil volume and overall weight.
What safety factor should be applied when calculating the maximum usable horsepower?
The rated torque values in the parameter table are calculated using a coefficient of 1. When calculating the maximum usable horsepower, you must consider a safety factor (SF) of 1.7.
How much energy can the NVI gearbox reducer save compared to conventional systems?
Thanks to precision helical gear meshing and high transmission efficiency (exceeding 95%), the NVI gearbox reducer helps reduce the overall energy consumption of injection molding machines by 20% to 30%.
What is the recommended load service factor (fB) for 24-hour continuous operation?
Based on operational experience and the requirements detailed in Appendix 1, a load service factor (fB) of 1.7 must be applied when selecting a gear size for 24-hour continuous operation.
Which lubricants are recommended for these reduction gearboxes?
Mineral oils such as ISOVG220EP and ISOVG320EP are recommended. Corresponding brand-name lubricants include MELLANA OIL BLASIA (IP AGIP) and MOBILGEAR 600 XP OMALA EP (MOBIL SHELL). Refer to Appendix 2 for specific temperature ranges.
How does this gearbox improve the production efficiency of injection molding machines?
Equipped with an intelligent control system and delivering precise transmission ratios, it ensures accurate mold movements and rapid response capabilities, shortening the injection cycle and improving production efficiency by 10% to 15%.