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Summary of Contents for Mega H-550A
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Page 1: Instruction Manual
BANDSAW AUTOMATIC H-550A INSTRUCTION MANUAL MEGA MACHINE CO., LTD. DOC NO ： H550A-100.U CTRL NO ： UPDATE ： 1998/07/27 DOC VER ：... - Page 2 The machine has been built to the highest standards to enable fast accurate cutting to be obtained. In order that the best results can be achieved from your MEGA band saw we would ask all operators and maintenance engineers to READ THIS MANUAL CAREFULLY BEFORE STARTING UP THE MACHINE.
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Page 3: Table Of Contents
TABLE OF CONTENTS Item Unit Page Introductory Illustrations Principal parts Specifications Specifications Standard Accessories Installation Moving and lifting Foundation layout and Set-up 3.2.1 Foundation 3.2.2 Leveling 3.2.3 Cleaning and oiling 3.2.4 Power Source Connection Operation Control Panel Operating preparation Manual Operation Automatic operation Special Operation Break -In Operation... -
Page 4: Introductory Illustrations
1. INTRODUCTORY ILLUSTRATIONS 1.1 Principal Parts 1 – 1... -
Page 5: Specifications
2. SPECIFICATIONS 2.1 SPECIFICATIONS Model H-550A / H-550GA Specifications φ550 □550H*600W (mm) φ21 □21*23 (in) Cutting Capacity φ190 □ 550H * 190W (mm) φ7.48 □ 21H * 7.48W (in) Bundle Cutting (mm) 250H*440W (mm) 41W * 1.30t * 5800L Blade Size (in) 1-1/2W * 0.051t * 226L... -
Page 6: Installation
3. INSTALLATION: 3.1 Moving and lifting: Unpack your machine carefully, and use a crane or forklift to set it in position. If a crane is used to lift the machine attach the lifting cable carefully to the machine as shown in the fig 2. -
Page 7: Foundation Layout And Set-Up
3.2 Foundation layout and set-up: (1) Foundation: The foundation should be constructed of reinforced concrete and must be level and flat. After the proper leveling position has been obtained, anchor the machine with anchor bolts. The position of anchor bolts and floor dimensions are shown in fig 4: □... -
Page 8: Leveling
(2) Leveling: The production accuracy of all precision machinery depends on the accuracy which the machine is installed. Manufacturing tolerance of the machine can only be guaranteed if the machine is firmly and properly installed . Once the machine is lowered on the prepared foundation. Machinist levels should be Used alternately on the vise slide plates and the work feed table , and adjust the left-and-right and fore-and-aft level of the machine with leveling bolt . -
Page 9: Operation
4. OPERATION 4.1 Control Panel (1) PNC Control Panel Cutting Piece Counter – This counter is used to preset the number of cuts required on the automatic operation. When the counter reaches the preset number, the machine stops automatically . To activate the counter, preset the counter switch with number at least “1”. - Page 10 (2) PILOT LAMP -- This light will comes on when the power supply is on. (3) EMERGENCY STOP -- This switch is used for emergency case to stop the machine only. Turn this switch clockwise makes power source on. When this switch is pressed, all machine's operation stop immediately.
- Page 11 4. OPERATION 4.1 Control Panel (1) PNC Control Panel Cutting Piece Counter – This counter is used to preset the number of cuts required on the automatic operation. When the counter reaches the preset number, the machine stops automatically . To activate the counter, preset the counter switch with number at least “1”.
- Page 12 (2) PILOT LAMP -- This light will comes on when the power supply is on. (3) EMERGENCY STOP -- This switch is used for emergency case to stop the machine only. Turn this switch clockwise makes power source on. When this switch is pressed, all machine's operation stop immediately.
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Page 13: Operating Preparation
4.2 OPERATING PREPARATION There are several steps will be taken before start the machine. (1) CHOOSE PROPER SAW BLADE : Select the saw blade best suited to the workpiece to be cut, Size and shape of the workpiece , and type of material should all be considered when selecting the saw blade to be used . -
Page 14: Manual Operation
(6) ADJUST THE POSITION OF THE WIRE BRUSH : a. loosen the lock lever of the wire brush case. b. Manually move the wire brush case so that wire brush just contacts the cutting edge of the saw blade. c. Tighten the lock lever. (7) ADJUST THE FEED RATE : Select suitable feed rate for the workpiece to be cut. -
Page 15: Automatic Operation
4.4 AUTOMATIC OPERATION : Having finished all the procedures described above in (2) Operating Preparation ,and with the workpiece to be cut placed in the vise of the machine , but NOT under the saw blade. (1) Turn the AUTO-MANUAL selector to manual. In control panel – The front vise clamp the workpiece when turn switch NO.(8) right and press button NO.(6) 1.5sec in the same time. - Page 16 ADDITION 1: Amplifying Valve ( Optional ) (1.) The outlines and hydraulic circuits: (2.) SET-UP A. The hydraulic pressure indicated in line <p> should be kept in constant during the whole stroke of the lifting cylinder, i.e. Between the very top and bottom position of the swinging saw frame. we use springs <r>...
- Page 17 B. Re-zeroing knob "a" & "b" on the amplifying valve: For zeroing knob "a", there is a hydraulic pressure gauge as drawing <S> needed, Please plug it onto the outlet on the amplifying valve. Pressure read at line <p> as the primary pressure....pressure <p> Pressure read at amplifying valve as the secondary pressure..
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Page 18: Maintenance
5. MAINTENANCE The maintenance of this machine is divided three portions as following. 5.1 HYDRAULIC CIRCUIT 5 - 1... - Page 19 5.2 Oiling and Lubricant The operator should be responsible for the proper lubrication of the machine. The grade and quality of lubricant are given in the lubrication chart below : Oil Lubrication chart Lubricating Point Lubricant Quantity Oiling Frequency Blade Tension Device DAPHNE FLUID 32T Twice a year Drive Wheel Bearing...
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Page 20: Others
5.3 OTHERS VARIABLES WHICH AFFECT BANDSAW BLADE LIFE 1. The Operator - The operator is the most important variable at any test. He can make or break any test and often has a great deal of influence over whose bandsaw blades are used. He can also be a good source of information on what is going on, competitive situations, relationships with manufacturers or distributors, etc. - Page 21 12. Machine Condition-Whether a machine is old or new, and whether well maintained or not contributes to how well it runs and how long the band last. The better shape a machine is in, the better the bands will run. Poor machines ruin bandsaw blades. 13.
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Page 22: Trouble Shooting Guide
6. TROUBLE SHOOTING GUIDE The following charts contains some typical troubles along with the probable causes and remedies for each. 6.1 Sawing Problems and Solution Vibration during cutting Failure to cut Short life of saw blade Curved cutting Broken blade Use blade with correct pitch, ○... -
Page 23: Minor Operating Troubles And Remedies
6.2 Minor Operating Troubles and Remedies Symptom Probable Cause Remedy 1. Buttons do not (1) Power disconnected (1) Connect function (2) Circuit protector OFF (2) Turn on (3) Thermal relay activated (3)Push reset button (4) Safety interlocks that is a. Load workpiece a. -
Page 24: Error Information
6.3. Error information The following table contains some typical errors along with the error details and remedies. AH257_ Bandsaws Trouble shooting guide Error name 異常名稱 排除方法 Code Remedy 正常停機 1.Press Blade-ascending button 按鋸帶上升按鈕 Machine stops normally 上升電磁閥異常 1.Eliminate breakdown 1.排除故障原因 Solenoid - ascending frame abnormal 2.Press Blade-ascending button 2.按鋸帶上升按鈕... - Page 25 異常編號 異常名稱 排除方法 Remedy 鋸帶啟動按鈕卡死異常 1.Eliminate breakdown 1.排除故障原因 2.Press Blade-ascending button 2.按鋸帶上升按鈕 Starting blade button jammed 鋸帶下降按鈕卡死異常 1.Eliminate breakdown 1.排除故障原因 2.Press Blade-ascending button 2.按鋸帶上升按鈕 Descending blade button jammed 送料架前進按鈕卡死異常 1.Eliminate breakdown 1.排除故障原因 2.Press Blade-ascending button 2.按鋸帶上升按鈕 Feed-forward button jammed 送料架後退按鈕卡死異常 1.Eliminate breakdown 1.排除故障原因...
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Page 26: Reference Charts
7. REFERENCE CHARTS 7.1 Standard Cutting Chart Material Blade Pitch Blade Speed Cutting Rate Service Life Sq c ㎡/min Sq c ㎡/PCE JIS code m/min S20C-S50C 50-70 42000-58000 S9CK-S15C 42-60 38500-54000 S53C-S58C 42-60 35000-58000 SS-50 42-60 38500-58000 SS-41 40-55 35000-54000 SM-50 40-55 35000-54000... -
Page 27: Standard Cutting Chart
7.2 Standard Cutting Chart Material AISI Brinell Blade speed Cutting rate code No. hardness Bhn Sq in/min 1108-1111 150-175 220-260 9.0-12.0 1112-1118 125-150 240-270 10.0-14.0 1115-1132 140-165 220-260 9.0-12.0 1137-1151 155-180 180-200 5.0- 8.5 1212-1213 150-175 240-270 10.0-14.0 1008-1013 150-175 220-260 7.0- 9.0 1015-1035... -
Page 28: Standard Cutting Chart
7.3 Standard Cutting Chart Material AISI Brinell blade peed Cutting ate code No. hardness Bhn sq in/min. Stainless Steels 302,304 130-170 80-90 303,303F 150-200 90-100 308,309,310 160-220 60-80 314,317,330 160-220 50-80 316,420 160-220 70-80 321,347 165-200 90-100 410,420F 140-185 100-110 416,430F 155-195 140-150...
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