Industrial Automation
China Gearbox NVI Series for Large Tonnage Injection Molding Machines - Top Suppliers & Factory Solutions
Introducing a Core Transmission Component for Injection Molding Production - the dedicated gearbox reducer specifically engineered for injection molding machines. This vital component is designed to enhance power transmission, boosting the overall efficiency of injection molding equipment. Our development prioritizes four essential demands: energy saving, environmental protection, noise reduction, and efficiency improvement. As a leading supplier in China, we are committed to supporting the high-quality advancement of the injection molding industry. Trust our factory to deliver top-notch gearbox reducers that meet your production needs.
Model Representation
Products Parameters
1
①: 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.
2
②: Weight may vary depending on the reducer ratio and configuration.
3
③: 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 |
| Ⅰ：Even load | ||||||||||||
| Ⅱ：Uneven load, medium masses | ||||||||||||
| Ⅲ：Uneven load, greater masses | ||||||||||||
| 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.
| 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.
| 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.
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 is the rated torque of the gearbox calculated?
The rated torque values are calculated using a coefficient of 1. When calculating the maximum usable horsepower, a safety factor of 1.7 must be applied.
What is the difference between built-in and external cooling methods?
Built-in cooling uses a copper plate with high thermal conductivity to separate the internal oil cavity and relies on an external cooling water circulation pipeline. External cooling employs a motor pump and plate heat exchanger to reduce the oil amount, keep temperatures low, and decrease the overall weight of the reducer.
How do I choose the correct load service factor (SF)?
The load service factor (fB) depends on the gear's operating conditions, including load type (even, uneven medium, or uneven greater masses), running time, and operation frequency. For a 24-hour operation, a load factor of fB=1.7 is recommended when choosing the gear size.
What types of lubricants are recommended for the gearboxes?
Mineral oils such as ISOVG220EP and ISOVG320EP are recommended. Suitable brands include Mellana Oil Blasia (IP Agip) and Mobilgear 600 XP / Omala EP (Mobil / Shell). The exact oil quantity should be verified using the actual oil level gauge.
How does the NVI gearbox improve energy conservation?
By utilizing precision helical gear meshing, the NVI gearbox achieves a transmission efficiency of over 95%. This minimizes energy loss and helps reduce the overall energy consumption of injection molding machines by 20% to 30% compared to traditional hydraulic motors.
Which cooling methods apply to specific gearbox sizes?
Built-in cooling is applicable to gearbox sizes 160, 180, 200, and 225. External cooling systems (with motor pump and plate heat exchanger) are applied to larger models, specifically sizes 250, 300, and 360.