The tonnage of the injection molding machine generally refers to the size of the clamping force, and the unit is "ton", which indicates the locking force exerted by the injection molding machine on the mold during the molding process. The tonnage classification of injection molding machines is mainly based on the size of its clamping force, which can usually be divided into the following main categories:

1. Small injection molding machine (clamping force less than 200 tons)

• Suitable for the production of small plastic products, such as small electronic components, medical device parts, etc.
   • Common tonnage: 10 tons, 20 tons, 50 tons, 80 tons, 100 tons, 150 tons, etc.

2. Medium-sized injection molding machine (clamping force 200-500 tons)

• Suitable for the production of medium-sized plastic products, such as home appliance housings, automotive parts, etc.
    • Common tonnage: 200 tons, 250 tons, 300 tons, 350 tons, 400 tons, 450 tons, 500 tons, etc.

3. Large injection molding machine (clamping force 500-1000 tons)

• Suitable for large plastic products, such as car bumpers, washing machine barrels, etc.
    • Common tonnage: 500 tons, 600 tons, 800 tons, 1000 tons, etc.

4. Super large injection molding machine (clamping force of more than 1000 tons)

• Suitable for oversized plastic products, such as trash cans, large containers, car parts, etc.
    • Common tonnage: 1200 tons, 1500 tons, 1800 tons, 2000 tons, 2500 tons, 3000 tons and more.

Selection of tonnage of injection molding machine

The choice of tonnage of the injection molding machine depends on factors such as the size of the product, the type of material, and the design of the mold. Usually after determining the product size and material, the required clamping force can be calculated to select the appropriate tonnage of the injection molding machine.

The tonnage of injection molding machines ranges from a few tons to thousands of tons, and enterprises can choose the right tonnage injection molding machine according to their specific needs.