How to tell if the energy consumption of Haitian injection moulding machine MA1600 is normal?

Author:           Date:2025-03-06

To determine whether the energy consumption of Haitian injection moulding machine MA1600 is normal or not, it needs to be analysed in combination with the technical parameters of the equipment, the production process and the operation status. The following are the specific methods and steps:

I. Energy consumption normal range reference

1. Rated power and theoretical energy consumption 

   - MA1600 motor power is usually between 55-75kW (specific to the model configuration shall prevail).  

   - Theoretical energy consumption: in no-load operation is about 30% -50% of the rated power, full production is close to the rated power.  

   - Example: If the rated power of the equipment is 75kW, the hourly power consumption is about 60-75 kWh during normal full-load production, which needs to be adjusted according to the product process.

2. Industry benchmarking  

   - Injection moulding machine energy consumption and clamping force, injection volume is positively correlated. MA1600 (570 tons clamping force) energy consumption level should be similar to the same tonnage models (such as Zhenxiong, Izumi), deviation of more than 10% need to be investigated.

Second, the method of detecting energy consumption

1. Direct measurement method  

   - Use industrial-grade power meters or intelligent power monitors to measure real-time current, voltage and power factor at the main power supply of the equipment.  

   -Record data: Record the energy consumption of 3-5 production cycles and calculate the average value. 2. 

2. Production data analysis method  

   - Check the energy consumption statistics through the control system of Haitian injection moulding machine (some models have this function).  

   - Comparison of historical data: If the energy consumption of the same product and the same process suddenly rises by more than 15%, there may be an abnormality. 

3. Comparison of process parameters  

   - Check whether the current process parameters (e.g. injection speed, holding time, cooling time) are too different from the standard process.  

   - Case: Holding time is too long will lead to continuous work of the oil pump, increasing energy consumption. 

Third, the common causes of abnormal energy consumption

1. Equipment aging and failure 

   - Leakage in hydraulic system: aging of oil pipes and seals leads to pressure loss, and the oil pump needs to do extra work.  

   - Motor efficiency decline: motor bearing wear or inverter failure, resulting in reduced efficiency of power conversion.  

   - Poor lubrication: the resistance of mould closing mechanism, screw and other parts increases, increasing energy consumption. 

2. Unreasonable process parameters

   - The injection speed is too fast or the holding pressure is too high, exceeding the actual demand.  

   - Insufficient cooling time, resulting in unstable mould temperature, requiring repeated heating. 

3. Mould design problems 

   - The sprue size is too small and the runner is too long, increasing the injection pressure and energy consumption.  

   - Inadequate mould exhaust, resulting in increased injection resistance.

Suggestions for optimising energy consumption

1. Parameter Adjustment

   - Enable energy-saving mode: for example, Haitian's ‘ECONOMY’ mode can reduce the energy consumption of non-essential actions.  

   - Optimise the injection speed curve to avoid the high speed section being too long.  

   - Adopt multi-stage holding pressure: reduce the holding pressure in stages according to the product demand. 

2. Equipment maintenance

   - Regularly change the hydraulic oil (recommended every 2000 hours) and clean the oil filter element.  

   - Check the lubrication status of motor bearings and guide rails to reduce mechanical resistance.  

   - Calibrate the pressure sensor to ensure that the control system accurately regulates the output of the oil pump. 

3. Technical Upgrade 

   - Add servo energy-saving system: Replace the traditional quantitative pump with servo variable pump, which can save 20%-40% energy.  

   - Changing to electric heating moulds: Higher power utilisation compared to traditional oil heating. 

4. Production Management

   - Centralised production: Reduce the frequent starting and stopping of equipment (each start-up consumes about 1.5 times more energy than normal operation).  

   - Night standby: Enable ‘sleep mode’ and switch off non-essential auxiliary equipment. 

V. Professional Inspection Suggestions

If it is difficult to test by yourself, you can contact Haitian after-sales service or third-party organisations:  

1. energy consumption audit: analyse the energy consumption of each component through professional equipment. 2. thermal efficiency test: assess the heating efficiency of the unit.  

2. Thermal efficiency test: Evaluate the heat utilisation rate of the heating system.  

3. Hydraulic system leakage detection: use pressure sensors to locate leakage points. 

Summary

Whether the energy consumption of Haitian MA1600 is normal or not needs to be judged in conjunction with the state of the equipment, process parameters and the production environment. Regular maintenance, parameter optimisation and technology upgrades can significantly reduce energy costs and improve equipment stability.

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