ER8 Precision Drill Chuck Collet with 0.005mm Accuracy and 1-5mm Clamping Range for CNC Machining
Price:
Negotiable
MOQ:
10
Delivery Time:
Negotiable
Brand:
GPDC
Product Description
Product Overview
Precision ER8 collet chuck designed for high-accuracy machining applications with runout accuracy up to 0.005mm (UP grade).
Key Specifications
Material: SUJ2 high carbon bearing steel
Hardness: HRC46° after heat treatment
Surface roughness: Rz2.5
Precision grades: S grade (0.015mm), A grade (0.01mm), UP grade (0.005mm)
Manufacturing standard: DIN 6499
Applications
Designed for clamping drills, taps, milling cutters, reamers, and various cutting tools with elastic contraction functionality for wide application range.
Please specify required accuracy level (S, A, or UP grade) when ordering
ER8 Collet Specifications
| Item No. | Clamping Range (mm) |
|---|---|
| ER8-1.0 | 1.0-0.5 |
| ER8-1.5 | 1.5-1.0 |
| ER8-2.0 | 2.0-1.5 |
| ER8-2.5 | 2.5-2.0 |
| ER8-3.0 | 3.0-2.5 |
| ER8-3.5 | 3.5-3.0 |
| ER8-4.0 | 4.0-3.5 |
| ER8-4.5 | 5.0-4.5 |
Precision Grade Comparison
| Accuracy | Item | Clamp Diameter (mm) |
|---|---|---|
| 0.01mm (A Grade) | A-ER8 | 1-5 |
| A-ER11 | 1-7 | |
| A-ER16 | 1-10 | |
| A-ER20 | 1-13 | |
| A-ER25 | 2-16 | |
| A-ER32 | 2-20 | |
| A-ER40 | 3-26 | |
| 0.005mm (UP Grade) | UP-ER8 | 3-5 |
| UP-ER11 | 3-7 | |
| UP-ER16 | 3-10 | |
| UP-ER20 | 3-13 | |
| UP-ER25 | 3-16 | |
| UP-ER32 | 3-20 | |
| UP-ER40 | 3-26 |
Manufacturer Background
AUTOFOR Company, a global leader in precision cutting technology, acquired a domestic drill chuck manufacturer in December 2018 to strengthen its high-precision industrial capabilities. The company holds over 10 invention patents and offers 30,000 product specifications with SGS environmental certification.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Guangdong Autofor Precision Intelligent Technology Co., Ltd.
Location
Room 502, Block A, No.10 Hongguang Road, Yunpu Street, Huangpu District, Guangzhou City (Office only),China
Contact Person
Paul Yang