ER truck is a cylindrical fixture used to hold drilling and tapping tools or milling tools installed on the spindle of drilling, tapping, milling machines or machining centers.
It is also called ER collet which can also be used to fix and reinforce parts that need to be modified and processed as a fixed locking device.
ER spring chuck has large clamping force, wide clamping range and good precision. Widely used in boring, milling, drilling, tapping, grinding and engraving processing. ER chuck is a type of spring chuck, generally used with CNC tool holders.
The ER chuck is one of the models of elastic chucks and is generally used more frequently. Especially between 1.5MM and 2MM, there is also the imperial 1/8 (3.175MM).
ER11 is mostly used on engraving machines and is used in large quantities. Accounting for more than 40% of the total usage, the ER type chuck is also called the engraving machine chuck.
Engraving machine chuck, which is also known as high-precision elastic chuck or collet and is an elastic clamp installed on the engraving machine for fastening drill or milling cutters. Currently, the most commonly used elastic drill clamps are ER and C-type. head.
Because of its stable performance, high precision, simple assembly and disassembly, and low price, the ER type chuck is deeply trusted by many manufacturers.
There are many types of ER elastic drill chucks and their characteristic is that the radial runout is only half of that of the type collet. ER truck greatly improves the accuracy C requirements of the product during processing, thereby reducing the scrap rate.
Among them, the imperial ones are the most common (such as 1/8 inch, 1/4 inch and 1/2 inch, etc.) and the accuracy of AA level can reach 5u.
There are many categories of elastic collet materials, among which 65mm (spring steel) has the most outstanding performance and is the model favored by most enterprises.