Core Advantages
High Precision and High Rigidity
Exceptional concentricity ensures minimal tool runout. For instance, with a professional ER tool holder and collet combination, runout precision can be controlled to within 0.003 mm (3 µm) at a 3x overhang length. Powerful clamping force effectively suppresses vibration, thereby ensuring machining stability.
Versatility and Flexibility
The system encompasses a wide range of specifications, from ER8 to ER50. By pairing a single tool holder with a corresponding set of collets-which allow for a broad clamping range-tools of various diameters can be securely held, effectively reducing inventory costs.
High Speed and High Performance
Precise dynamic balancing and a symmetrical, high-rigidity design make it ideally suited for high-speed cutting and shaft machining; this reduces vibration, enhances workpiece surface finish, and extends tool life.
Ease of Operation
Tool changes can typically be completed quickly using just a single roller wrench, eliminating the need for complex heating or hydraulic equipment and significantly reducing downtime.
Manufacturing Process
Material Selection and Pre-treatment
High-alloy steels or spring steels-such as SUJ2, 42CrMo, and 65Mn-are selected as raw materials; for certain high-end manufacturing applications, a forging process is also incorporated.
01
Rough Machining
The material is turned to its approximate contour, and the elastic slots are milled out.
02
Heat Treatment
Through processes such as quenching and tempering, the hardness is brought to the specified HRC level to ensure optimal elasticity and wear resistance. Some high-end products also undergo deep cryogenic treatment and aging processes.
03
Precision Grinding
Following heat treatment, all critical mating surfaces undergo high-speed precision grinding to reduce surface roughness to a mirror-like finish of Ra 0.4, thereby guaranteeing assembly precision.
04
Cleaning and Surface Treatment
After ultrasonic cleaning, a special coating or anti-rust oil is applied to enhance surface hardness, corrosion resistance, and aesthetic appeal.
05
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