CONTENTS 1 The advantages of Servo Punch 2 Introduction of servo drive solution 3 Working Mode of servo punch 4 Testing data 5 ESTUN’s Total Solution

Typical case: AMADA, MURATEC 1. The advantages of Servo PUNCH In the first decade of 21th century, Servo Direct Drive became a new trend. Typical case: AMADA, MURATEC Servo + Reducer+ Crank Amada AE Series Servo + Crank Amada EM Series Servo + Reducer + Crank toggle MURATEC MOTORUM

1. The advantages of Servo Punch Servo Punch does not only keeps the advantages of traditional mechanical punch structure, but also has more Extreme Energy Saving Normally 60% energy saving。 Extreme Noise Reduction 10 dB noise reducing, up to 11%. Extreme Mould lifetime Extension Lower Inertia, less Impact

1. The advantages of Servo PUNCH Extreme Efficiency Increasing Stroke and speed directly controlled, synchronized with feeding 1.4mm stroke，0.5mm gap，1800 strokes/min Extreme High Accuracy, Manufacturability High slider poisoning accuracy Multiple punch mode: press, punching, forming Maintenance Free No hydraulic system Only lubrication

Fake Direct Drive 2. Introduction of servo drive solution Solution Advantages Disadvantages Servo Reducer Crank Low motor torque; smaller; Low punch rate Reducer’s gap, noise, lifetime ——not direct drive Need maintenance Servo (single/double) Simplest ; Highest punch rate; High accuracy; No gap, high Manufacturability Higher torque requires higher reliability Crank toggle Motor torque is less than the one of servo & crank plan Punch rate is lower too Complex structure, algorithm Low manufacturability Low punch head stroke Fake Direct Drive

Single Servo Motor + Crank 2. Introduction of servo drive solution ESTUN’s Turret Punch solution: Single Servo Motor + Crank

2. Introduction of servo drive solution Servo Motor Features Low speed & high Torque，more than 3 times overload IP65 Water cooling Rated speed: 500 rpm Highest Speed: 600~650 rpm Resolver，high endurance Built-in thermo protection

2. Introduction of servo drive solution Servo Drive Features Specifically designed for punch and turret punch machine; Built –in punch program ， perfectly compatible with Fanuc & Siemens control unite; more than 3 times overload; Current & acceleration feed forward control; High response，1.6kHz Frequency Response; Suppression of low frequency structural vibrations, Automatic gain setting, online load inertia monitoring, sample parameter setting; Motor parameter automatic recognition, online update, motor overheat protection CANopen, MODBUS, PROFIBUS, EtherCAT, POWERLINK

refrigerating capacity 2. Introduction of servo drive solution Model Servo Motor Servo Drive refrigerating capacity 20 Tons EMT2-200GW EHD-5ZDEB 3.5~5 kW 30 Tons EMT2-200HW EHD-5ZDMB 6~9 kW Control Unite FANUC 0iPD RS-232 Siemens 840D,802D,802DSL PROFIBUS

2. Introduction of servo drive solution Servo Motor Technical Specification for 20 Tons Punch 型号Model EMT2-200GW 额定功率 rated output power 41 kW 额定扭矩 rated torque 800 N∙m 最大转矩 peak torque 2400 额定转速 rated speed 500 rpm 最高转速 max.speed 600 额定电流 rated current 87 Arms 瞬时最大电流 instantaneous peak current 261 转子惯量(不带抱闸) inertia of rotary moment 0.34 kg∙m2

2. Introduction of servo drive solution Servo Motor Technical Specification for 30 Tons Punch 型号 Model EMT2-200HW 额定功率 rated output power 63 kW 额定扭矩 rated torque 1200 N∙m 最大转矩 peak torque 3500 额定转速 rated speed 500 rpm 最高转速 max. speed 600 额定电流 rated current 130 Arms 瞬时最大电流 instantaneous peak current 420 转子惯量(不带抱闸) Inertia of rotary movement 0.53 kg∙m2

2. Introduction of servo drive solution Someone may ask How can direct drive servo motor save energy when rated power is so high？ Servo motor only consumes energy when it runs; Motor efficiency＞95%; Direct drive and high torque requires high rated power; Testing data：26 kW/h at 20 Tons punch machine, and worst working condition.

Typical Working Mode of Servo Punch： High speed punch Stepping punch Forming punch Mute punch Mold calibration

Introduction Ram stroke 3. Working Mode of servo punch Mechanical top dead center Mould changing position Top dead center (punching starting) Ram stroke Bottom dead center Mechanical bottom dead center

Working Mode of Punch Head 3. Working Mode of servo punch Working Mode of Punch Head simple pendulum: After received signal, motor runs from point A to point B, then return from point B to point A. A: Top dead center (punching starting) B: Bottom dead center Forming: After received signal, motor runs from point A to point B, then return from point B to point A after a while of stopping. Rolling: After received signal, motor runs from point A to point B, motor will keep in bottom dead center, then return from point B to point A after receiving press finishing signal.

3. Working Mode of servo punch Stamping Mode: Stamping mode can be set two working mode by adjusting Pn212: Mode 0: bottom dead center adjustable: After received starting signal, motor runs from point A to point B, then return from point B to point A. Motor will keep running like this, until it stops at point A, after receiving punching cancelling signal; Mode 1：Mechanical bottom dead center will be fixed to bottom dead. As following image, ： After received starting signal, motor runs from point A to symmetrical position point C through point B. Motor will keep running like this. After receiving punching cancelling signal, motor will finish current circle, then return to point A and stop. C: Top dead center A: Top dead center B: Bottom dead center

3. Working Mode of servo punch Double Pendulum: After receiving starting signal, motor runs from point A to point B, then runs from point B to point C; After receiving next starting signal, motor runs from point C to point B, then runs from point B to point A. Point C must be  360 degree symmetrical with point A, B is mechanical bottom dead center and corresponding to 180 degree. Point C and point A correspond same slider position because of symmetry. Slider moves like simple pendulum mode. In this mode, modulus is deep and not adjustable, but punching speed is fast. A: Top dead center C: Top dead center B: Bottom dead center

Temperature rise test: 30T 4. Testing Data Temperature rise test: 30T No. Top dead center Bottom dead center Opening angle Swing times Total testing time 1 145.9 180 34.1*2 1520 s/min 60 min Equal to r=16mm, l = 160mm, Stroke 3mm Temperature setting of water cooling machine is 20° C， refrigerating capacity 5kw，flow 16.6L/min The temperature of motor stator winding stabilized in 70°C

Equal to r = 16mm, l = 160mm, Stroke 8mm 4. Testing Data Endurance test ，20T No. Top dead center Bottom dead center Opening angle Swing times Total testing time 1 120 180 60*2 400 s/min 3 months Equal to r = 16mm, l = 160mm, Stroke 8mm Temperature setting of water cooling machine is 20° C， refrigerating capacity 5kw，flow 13L/min The temperature of motor stator winding stabilized in 80°C

4. Testing Data Moment of Inertia Motor Rotor inertia EMT2-200GW 0.34 Kg∙m2 EMT2-200HW 0.53 Ram （r=16mm；l=160mm） Rotor inertia 20T 0.113 Kg∙m2 30T 0.168

Double Pendulum （ no- load ） 4. Testing Data Double Pendulum （ no- load ） Punch head frequency testing 20T No. Top dead center Bottom dead center Opening angle Time (ms) Stroke (mm) Frequency (Strokes/min) 1 152.4 180 27.6*2 31.1 2mm 1929 2 145.9 34.1*2 34.6 3mm 1734 3 140.4 39.6*2 38.2 4mm 1570 4 130.9 49.1*2 42.3 6mm 1418 5 122.4 57.6*2 46.4 (47.8) 8mm 1255 6 118.5 61.5*2 48.0 (50.0) 9mm 1200

Double Pendulum （ no- load ） 4. Testing Data Double Pendulum （ no- load ） Punch head frequency testing 30T No. Top dead center Bottom dead center Opening angle Time (ms) Stroke (mm) Frequency (Strokes/min) 1 152.4 180 27.6*2 32.3ms 2mm 1857 2 145.9 34.1*2 35.4ms 3mm 1695 3 140.4 39.6*2 39.0ms 4mm 1538 4 130.9 49.1*2 42.8ms 6mm 1400 5 122.4 57.6*2 47.0ms 8mm 1276 6 118.5 61.5*2 49.8ms 9mm 1204

noise reduction test of mute punch 4. Testing Data noise reduction test of mute punch Testing data at client’s side Max speed of motor: 600RPM; Please: production workshop. Thickness：1mm Pre pressure point ：130.9 degree Mould: 20×20 Punch speed: 50RPM Speed conversion point: 135 degree Normal punch noise: 93.4 dB Mute punch noise: 84.4 dB. Reduce 9.6% noise.

All Servo Turret Punch Total Solution 5. ESTUN’s Total Solution ESTUN All Servo Turret Punch Total Solution ProNet & EMS Servo System EHD & EMT2 Direct Dive Servo System Fagor 8055I Controller Servo Punch Head

5. ESTUN’s Total Solution Electric cabinet

5. ESTUN’s Total Solution Electric cabinet

5. ESTUN’s Total Solution Punch frequency: 2 mm stroke 1900 times/min 3mm stroke 1700 times/min 4mm stroke 1500 times/min Punch stroke：32mm Nominal pressure ：200KN\300KN Weight：270 kg (motor is not included)

FAGOR Efficiency Customization optimization Easy to re-development 5. ESTUN’s Total Solution FAGOR 8055i 数控系统 FAGOR 8055i CNC System Efficiency Customization optimization Easy to re-development

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