EGM
EGM
Overview
The document details the specifications, features, and options of the EGM and EGI series CNC Precision Hybrid Internal Diameter (ID) and Outer Diameter (OD) grinders manufactured by a company with operations in Taiwan and the USA. These machines are designed for high-precision grinding applications with advanced CNC control systems.
1. CNC Control Systems
- Available with Mitsubishi M80 (with 10.4" color touch screen) or FANUC 0i-TF controllers.
- Optional graphic conversational programming eliminates the need for G-code, simplifying operation for beginners.
- Features include high-speed box-type dressing, dressing interrupt during grinding, internal/external cylindrical compensation, anti-collision functions, MPG simulation, and program storage.
2. Machine Features
- Low-gravity base and ergonomic operation panel design.
- Capability to perform multiple grinding operations (internal, external, end-face, groove, radius, taper, step grinding) in one chucking, improving efficiency and concentricity.
- Complete one-piece cartridge spindle reduces eccentricity and thermal growth, enhancing spindle life and accuracy.
- Spindle head design balances center of gravity to improve accuracy and loading capacity.
- Servo motor-driven spindles provide optimal speed and torque.
- Use of C1 grade precision ball screws and roller-type linear guideways for high accuracy and rigidity.
- Slant bed design for effective coolant drainage and swarf removal.
3. Grinding and Dressing Functions
- High-speed box-type dressing function (iGrind) reduces dressing time by automatically generating optimal dressing paths based on input parameters.
- Graphic conversational programming supports various grinding cycles including multi-step, profile, and form grinding.
- Grinding wheel dressing includes OD and end-face dressing with graphical illustration.
4. Standard and Optional Accessories
- Standard: Mitsubishi or FANUC control system, diamond dressers, hydraulic 8" 3-jaw chuck, MPG handwheel, Heidenhain/Mitsubishi linear scales, coolant tank (140L), automatic lubrication, splash guard, LED working light, electrical wiring diagram, operation manual, and more.
- Optional: Coolant systems with magnetic separator or paper filter, CE standard electrical cabinet, spindle oil mist lubrication, ID auto gauging device, diamond roller dressing device, dressing sensor system, safety door lock, B axis linear scale with digital readout, soft-jaw turning assembly, and various spindle and chuck upgrades.
5. Technical Specifications Summary
| Model | Max Grinding ID (mm) | Max Grinding OD (mm) | Max Grinding Depth (mm) | Max Workpiece Length (mm) | Workhead Type | Spindle Speed (rpm) | Grinding Wheel Size (OD/ID mm) | Rapid Feedrate (m/min) | Min Increment (um) | Net Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|
| EGI-150 CNC | 300 | 300 | 260 | 300 | Single feeding wheelhead | 0-1000 (variable) | φ100 (ID), φ80 (CBN) OD | 8 | 0.05 | 3000 approx. |
| EGM-350 CNC | 300 | 400 | 260 | 300 | Dual independent wheelhead | 0-1000 (variable) | φ100 (ID & OD) | 8 | 0.05 | 5800 approx. |
| EGM-350L CNC | 300 | 330 | 260 | 750 (with steady rest) | Dual independent wheelhead | 0-1000 (variable) | φ100 (ID & OD) | 8 | 0.05 | 6800 approx. |
| EGM-450 CNC | 300 | 400 | 260 | 300 | Dual independent wheelhead | 0-1000 (variable) | φ100 (ID), φ405x50xφ127 (OD) | 8 | 0.05 | 6300 approx. |
Note: All models feature hydraulic 8" or 10" chucks (optional), swiveling angle ranges from +15° to -5° (varies by model), and high precision linear scales with minimum increments of 0.0001 mm.
6. Grinding Example
Example part: SCM415 (JIS) material, dimensions φ90x45xφ35 mm, hardness HRC55°±2°, grinding application 0.25 mm in 60 seconds, dimension tolerance 5 μm, grinding wheel speed 20,000 rpm, achieved roundness 2 μm and cylindricity 3 μm.
7. Summary of Critical Information
- Advanced CNC controls with user-friendly programming reduce setup time and operator training.
- Multi-axis grinding with dual spindles enhances precision and productivity.
- Robust mechanical design with precision components ensures long-term accuracy and reliability.
- Flexible accessories and options allow customization for specific grinding needs.
- Comprehensive safety and operational features included as standard or optional.
For further details, contact information is provided for Taiwan and USA offices.
Catalog excerpts
EGM CNC˙Printed inIn Taiwan. E1. 05/2018. En EGM CNC. Printed Taiwan˙E4˙12/2020˙en CNC Precision Hybrid Precison Hybrid ID & OD Grinder USA 6435 Alondra Blvd, Paramount, 6435 Alondra Blvd, Paramount, CA.90723 CA.90723 E-mail : [email protected] E-mail : [email protected] TEL : (562) 220-1675 TEL : (562) 220-1675 Asian Operation Center No.36,Ln.686,Sec.4,Changping Rd., No.36,Ln.686,Sec.4,Changping Rd., Daya Dist.,Taichung City 428 Daya Dist.,Taichung City 428 Taiwan(R.O.C) Taiwan(R.O.C) E-mail : [email protected] E-mail : [email protected] TEL : 886-425686418 TEL : 886-425686418 WEB: www.etechtw.co
Open the catalog to page 1
EGM / EGI series CNC Precision Hybrid ID & OD Grinder EGM350 CNC Hybrid precision grinder equips with X, Z, Y three axes slides and dual grinding spindles. It is specially designed to keep up with the growing demand for extremely high precision parts. Features EGM350 series CNC control systems are available for MITSUBISHI* or FANUC** control. It also can be operated with graphic conversational programming (Option) Therefore, it eliminates the need for G-code programing, and is easy to learn and use for grinding operation even for beginners. (*MITSUBISHI M80 with touch screen / **FANUC 0i-TF)...
Open the catalog to page 2
Complete one piece cartridge spindle can avoid the eccentricity of spindle housing and reduces the thermal growth, thus increase spindle life. Machine incorporates roller type linear guide ways for X/Z/Y axes for high dynamic rigidity and better loading capacity. This drastically increases the grinding accuracy The spindle head design places the center of gravity at the rear portion to help balancing the whole spindle mechanism to increase spindle accuracy and loading capacity. C1 grade precision ball screw with large leading pitch is used to achieve high accuracy. Spindle driven by servo motor...
Open the catalog to page 3
Operation set-up through simple graphic display icons for easy learning progress. Edit/Execute File Management Former Page Grinding Mode Selection Machine Positoning & Situation Display Grinding Wheel Dressing With the iGrind high speed box type dressing function, the operator just have to input the necessary parameters for the dresser and the geometric data of the profile to create the optimal dressing path. Thus, it drastically reduces the wheel dressing time. Intelligence Sequence Selection Sequence Setting: Select GW options & grinding modes Axial Compensation Selection Grinding mode selection...
Open the catalog to page 4
Grinding Example Grinding wheel spindle specification Grinding Wheel ID auto. gauging device Suitable Inner Diameter Grease Type Suitable Inner Diameter Parts Name: Material ：SCM415(JIS) Workpiece dimension ： φ90x45xφ35mm Grinding application ： 0.25mm/60 sec. Hardness ： HRC55°±2° Standard Accessories: Control system: Mitsubishi M80 or FANUC 0i-TF with 10.4” screen 4-color indication signal light Three-direction dresser stand x 1 set, diamond dresser x 3 pcs Levelling bolts and blocks Wheel spindle surface detecting & crash control system (current indicator) Tools & tool box Grinding wheel speed...
Open the catalog to page 5
Specification : EGM & EGI Series Model Swing over workhead Single feeding wheelhead Dual indenpendent wheelhead Swiveling angle range Manual travel distance (toward Z axis) Spindle speed Servo motor rated power Swing over workhead Dual indenpendent wheelhead Dual indenpendent wheelhead Swiveling angle range Manual travel distance (toward Z axis) Spindle speed Servo motor rated power Grinding wheelhead OD grinding wheel size Grinding wheelhead OD grinding wheel size ID grinding wheel size ID grinding wheel size ID grinding wheel size End-Surface grinding spindle (Opt.Z2) Spindle motor/ max. torque...
Open the catalog to page 6All E-tech Machinery catalogs and technical brochures
- Grinding machine
- CNC grinding machine
- Precision grinding machine
- Workpiece grinding machine
- Surface grinding machine
- Cylindrical grinding machine
- High-precision grinding machine
- Automatic grinding machine
- Vertical grinding machine
- Internal cylindrical grinding machine
- Universal grinding machine
- Centerless grinding machine
- High-speed grinding machine
- Hydraulic grinding machine
- Large-size grinding machine
- NC grinding machine
- Angular grinding machine
- Metal profile grinding machine
- Fine grinding machine