How to choose a second hand injection molding machine below 100 grams

Vertical or horizontal.

The vertical type is generally simpler.

Horizontal, I generally look at the following places.

If the machine hinge is worn out a lot, the mold will be opened when the mold is shot, so that the product will produce a front. If there is a problem with the hinge, the cost of maintenance is also relatively large.

If the pressure hole and tooth hole wear are not large, it means that the machine is used less (can only be said to be relatively speaking).

Oil pumps, now there are quantitative pumps, variable pumps, servo pumps. You can listen to the sound when you test the machine. If it is very loud, there may be a problem with the oil pump, and of course, it may be that the oil is too sloppy. If it's too loud, you won't buy it.

template, see if there is a burst. If it's a burst, the machine can almost be played at the price of scrap iron.

Computer, this is generally not seen anything, and now it is convenient to change computers.

There is also the choice of machine according to the product you make.

For example, if you make a PC, then you have to consider a machine that reduces the screw, and if you make engineering materials, then you also have to consider the screw.

There is also the year of the machine, because each machine is different from year to year, and there are always some slight differences. I don't know if you know very well about injection molding machines, the average connoisseur can know the real year of the machine when he sees the ** of a machine. Slowly understand, second-hand machines also have good goods.

I hope it helps, choose mine.

It is difficult to say specifically, and it is easy to log in to the second-hand equipment trading platform for comprehensive and all-round consideration.

Test run, listen to the sound to identify the mechanical state, of course, the same can choose the use time is short!

The frame is not in good condition, and the screw is not damaged

The structure and manufacturing process of the plastic warp system of the second-hand injection molding machine, such as the barrel, screw, screw head, check ring and the driving spindle of the screw, etc., are the main stress parts and wear parts of the second-hand injection molding machine, which directly affect the service life.

The safety of used injection molding machines is very important. When the mold clamping mechanism opens and closes the mold, the reliability of the low-voltage protection system of the injection molding machine involves man-machine safety. Modern second-hand injection molding machines require the implementation of electrical, mechanical, hydraulic joint safety protection system, this protection is mainly reflected in two aspects:

One is the safety protection of the mold, and the other is the safety protection of the person.

The initial capital of the business is very important, the first thing to solve the problem of money, so it is very important to meet the current list, from the perspective of the weight of the product you only provide, the tonnage of the injection molding machine should be selected in 90-160 tons; The budget is about 5-60,000 yuan, which means that you can only take 5w blocks out to buy a machine at most (of course, it is better to make an installment payment when you can buy it, and domestic machines like Haitian and Chen Hsong machines will take about five years, and they will also cost 70,000 or 80,000 yuan (given the tonnage of 90 tons); And good machines like Sumitomo machine, Nissei, etc., even if you use it for ten years, it is estimated that you can't buy other people's machines, so you can consider domestic Haitian or Chen Hsong (Haitian is okay for injection molding of large products, Chen Hsong is quite stable, but it is easy to break--- personal opinion).

When buying, it is best to pay attention to a few points:

1.If you have a warranty card, you must;

2.Pay attention to check whether the operating system is very different from the actual value (the others are easy to do, and relatively easy to repair, the operating system is difficult to repair);

3.Oil circuit and circuit system inspection;

4.The mold opening stroke and clamping force must be checked;

5.Finally, there is a backseat battery for inspection;

I suggest you buy the 380t300t of the Zhende variable pump, which is just enough to meet your needs, and Haitian can also be, now the economy is not good, ** is very low, I am doing energy-saving transformation of injection molding machines, and the variable pump is more energy-saving.

Personally, I think that first of all, look at the brand, this is like buying a car, the original cost performance is good, even if it is second-hand, it will be good. The second is to look at the year, the year is relatively recent. There will be less loss in all aspects.

Injection molding machine Our company is the production of injection molding grade There are often about 10 years old machine pulled back for repair, often disassemble the fixed plate, there are green columns broken inside, and there is a check Is the die adjusting screw gear in good condition? Cylinder pressure.

1. Check what type of oil pump it is. This is related to the pressure stability and the loss of electrical energy in the later stage.

2. Check the wear status of the oil valve. This is related to the control of speed and position in production, and of course, the cooperation with sensors is indispensable.

3. Whether there is oil leakage.

4. The wear and tear state of the frame.

5. The copper sleeve of the template is not all updated.

6. Whether the threads of the fixed plate and the movable plate are normal.

7. The specifications of the screw and the wear and tear of the barrel.

8. Extend the warranty period as much as possible.

First of all, we have to look at the brand, this is like buying a car, a cost-effective machine, even if it is second-hand, the quality of its products is also good. Secondly, it is necessary to look at the year, generally speaking, the machine with a relatively recent year will have less loss in all aspects.

You can go to the site to try the machine, second-hand we generally have a warranty. Taizhou Hongsu Machinery ****, you can learn about it.

I don't know where you are, you want to be in my place, 500 yuan to guarantee your maintenance for a year.

1. The purchase of injection molding machine 1. The determination of the clamping force. It is suggested that the clamping force of the machine used should be slightly greater than the cavity pressure required for product molding, and the product accuracy should be high, the clamping force should be larger, and the clamping force should be relatively low.

2. Determination of theoretical volume. It is suggested that the maximum theoretical injection volume of the selected plastic machine should not be less than the times of the theoretical volume required for the product, and it can be smaller for amorphous plastics, and it is more appropriate to choose a relatively large design value for high-viscosity plastics.

3. Determine other parameters of the injection part. It is recommended to choose a plastic machine with high injection pressure, plasticizing capacity and relatively small injection rate for products with complex shape, high precision and high raw material viscosity; For products with low raw material viscosity, low product quality requirements and high output requirements, choose a plastic machine with low injection pressure, relatively large plasticizing capacity and injection rate.

4. Comprehensive determination. After determining the basic parameter requirements of the purchased injection molding machine, the products produced by well-known enterprises are selected to ensure the product quality stability and good maintenance service support of the plastic machine. At the same time, it is also necessary to pay attention to the safety protection design of the plastic machine, and choose products with high safety as much as possible to ensure the personal safety of operators.

First of all, if you buy an injection molding machine, you should look at the brand of the injection molding machine, followed by the model, the degree of newness, clamping force, etc., and at the same time, you should also pay attention to the safety protection design of the plastic machine, and choose products with high safety as much as possible to ensure the personal safety of the operator.

It is necessary to check the brand of the injection molding machine, then check the date of the injection molding machine (the electrical cabinet of the machine), the degree of newness, etc., and then ask the customer whether the machine is a first-hand equipment, whether it has a factory certificate and other detailed information, test the performance of the injection molding machine and the tolerance value range, etc.

The initial capital of the business is very important, the first thing to solve the problem of money, so it is very important to meet the current list, from the perspective of the weight of the product you only provide, the tonnage of the injection molding machine should be selected in 90-160 tons; The budget is about 5-60,000 yuan, which means that you can only take 5w blocks out to buy a machine at most (of course, it is better to make an installment payment when you can buy it, and domestic machines like Haitian and Chen Hsong machines will take about five years, and they will also cost 70,000 or 80,000 yuan (given the tonnage of 90 tons); And good machines like Sumitomo machine, Nissei, etc., even if you use it for ten years, it is estimated that you can't buy other people's machines, so you can consider domestic Haitian or Chen Hsong (Haitian is okay for injection molding of large products, Chen Hsong is quite stable, but it is easy to break--- personal opinion).

When buying, it is best to pay attention to a few points:

1.If you have a warranty card, you must;

2.Pay attention to check whether the operating system is very different from the actual value (the others are easy to do, and relatively easy to repair, the operating system is difficult to repair);

3.Oil circuit and circuit system inspection;

4.The mold opening stroke and clamping force must be checked;

5.Finally, there is a backseat battery for inspection;

Injection molding machineOur company produces injection molding grade.

There are often 10-year-old machines that are pulled back for repair.

Disassemble the fixing plate often.

There are broken Green columns inside.

And then there's the check.

Is the die adjustment screw gear in good condition?

Cylinder pressure.