What is the difference between drill chuck holder?

What is the difference between drill chuck holder?

1: APU high-precision drill chuck is a kind of self-tightening drill chuck with a tail handle, which can be connected to various tool holders. The chuck is tightened by reverse torque generated during drilling and milling, making it easy to use. Due to its use on machining centers, there are strict design requirements for the safety, accuracy, tightening torque, and service life of the chuck.

2: What  are the specific technical requirements for a good APU high-precision drill chuck?

A: The structural requirements of the product, as well as the scientific and reasonable design and processing technology of the clamp head, are the basic requirements for production with safety, high precision, and good service life.

B: APU high-precision drill chuck has a unique large conical surface connected to the handle and standard T-shaped drive thread, which has basic requirements for clamping stability, repeatability, safety and high accuracy.

C: The transmission torque of Jiehe APU chuck is high-precision T-shaped thread transmission, while other companies use inferior rolling methods to make triangular threads with small transmission torque, poor accuracy, and easy loosening of clamping clearance.

D: Our APU high-precision drill chuck adopts three rods and three checks to ensure accuracy. Taking the 13mm chuck as an example, three inspection rods of 13mm, 8mm, and 4mm are used to test the accuracy at four times the diameter. The accuracy requirement is that the runout should be less than 0.05mm. This testing standard ensures the accuracy of the chuck when clamping tools of different diameters.

E: Other parts are made of high-quality alloy steel, and the chuck sheath is made of chromium-containing wear-resistant materials.

In addition, cast iron or aluminum cannot be used for the chuck seat. These types of steel cannot bear the drilling and milling torque of the chuck, and the chuck does not have sufficient rigidity.

F: The service life of the APU high precision drill chuck is also very important. Nowadays, in machining centers and high-speed cutting, if high-quality chucks that cannot meet the requirements are used, frequent replacement will reduce the efficiency of use.