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HIGH SPEED BLANKING PRESS
 
FRAME: Frame is computer aided design aimed at economy and rigidity, welded steel construction, for maximum rigidity and long term accuracy. Frame is dynamically designed to ensure minimum deflection and thus improve die and machine life.
SLIDE: Cast iron body for lower capacity, fabricated and duly stress relieved for capacity higher than 80 tons, Six-point/Eight-point type depending upon slide dimensions, eccentricity of loading and press capacity, sufficient long gibbing to maintain excellent parallelism between slide and bed. Liners of bronze casting fixed to gibs with counter sunk screws, easily approachable and replaceable. Slide height adjustment is manual for lower capacity and motorized for higher ones. Slide provided with shear plate jam releasing device or hydraulic device with preset pressure for safety against over loading.
DRIVE: Drive shaft of carbon-alloy steel, ultrasonically tested, random tested for metallurgical properties, ground at bearing surfaces and dynamically balanced for high speed presses. Gears of Cast Steel grade chosen for strength or built up of forged rim and hub with mild steel web, all welded and then stress-relieved, hob cut teeth , hardness matching with requirement, main gear run in oil bath to increase life and reduce noise, bearing of copper-base alloys with holes and grooves for proper lubrication and dissipation of heat.
FLY WHEEL: Fly Wheel of cast iron designed to cater for sufficient energy required for operation, brakes provided on request and mounted on quill for higher capacity, in both cases. Fly wheel is on antifriction bearing .
PNEUMATIC CLUSTER & BRAKE: Pneumatic Clutch & Brake is designed for excellent torque transmission power, low intertia/high torque, combined with single-disc type with sufficient fins/ribs for dissipation of heat, pneumatically synchronized. Clutch operating under pneumatic pressure released by spring, brake operating on spring and released pneumatically. For higher torque, clutch and brake are separate, double solenoid valve at air entry for addition safety.
PNEUMATIC BALANCER: Pneumatic balancers are provided to counter the self -weight of slide (include upper tooling fixed to slide bottom) to help easy slide movement and ajustment.
LUBRICATION : Lubrication of all moving/rolling contact surfaces by automatic oil pump and network of pipes tubes flexible pipes manifold and metering cartridge. It is centralized with automatic adjustment timer, can be made recirculatory type if required.
Lubrication of tooling optional, lubrication network integrated to electrical circuit so that in case of malfunctioning of lubrication system the clutch is detached.
ELECTRICALS: Electrical control is provided with a switch (lockable) for three modes (once, continuous and inching). The dual solenoid valve stops the press operation by electrical lockout. The Control panel box is generally mounted on the frame with anti-vibration pad. It can also be floor mounted to suit client's requirement. Two-hand push button for operator's safety is fitted in front of the press. Electrical installation conforms to latest electrical regulation.
All presses may be supplied with the following accessories :-
A) STANDARD ACCESSORIES :
1. Fly Wheel Guard.
2. Shear Plate as Safety Device.
3. Stroke Counter.
4. Crank Angle Indicator.
5. Rotary Cam Limited Switch.
6. Slide Knock Out Devices.
7. Maintenance Tools.
B) OPTIONAL ACCESSORIES :
1. Decoiler (Single/Double).
2. Straightener.
3. Feeder
4. Scrap Chopper (Mechanical/Pneumatic).
5. Coiler.
6. Hydraulic Overload Device.
7. Wet Clutch.
8. Quick Die Changing Device.
9. Moving Bolster.
10. Photo-Electric Guard.
11. Die Area Light.
12. Tool Lubrication.
13. Fly Wheel Brake.
14. Programmable Logic Controller (P.L.C).
15. Variable Speed Motor
16. Load Moniter.
17. Die Height Indicator.
18. Micro-Inching Device.
19. Pneumatic Die Cushion. (Stroke Adjustment/Fixed)
20. Non-Standard T-Slot and opening in slide and Bolster Plate.
21. Ladder and Cushion.
22. Pressure Plate under slide bottom.
23. Mechanical Ejector.
24. Hand grease Lubrication
25. Single Phase Preventor.
26. Zero-Speed Switch.
| SPECIFICATION - HIGH SPEED BLANKING PRESSES |
Capacity at 20o before BDC
at maximum
stroke. |
Tonne |
25 |
40 |
63 |
63 |
100 |
160 |
200 |
250 |
| No. of suspension points |
|
1 |
2 |
1 |
2 |
2 |
2 |
2 |
2 |
| Stroke fixed -standard |
mm |
20 |
20 |
25 |
25 |
25 |
40 |
40 |
40 |
Optional
Stroke fixed -max
(at adapted speed) |
mm |
50 |
50 |
50 |
50 |
50 |
80 |
100 |
100 |
Shut height from table to slide
face with slide down
adjustment up |
mm |
355 |
355 |
425 |
400 |
450 |
500 |
560 |
560 |
| Slide adjustment |
mm |
50 |
63 |
63 |
63 |
100 |
100 |
100 |
100 |
Table and bolster
area
LR
FB |
mm
mm |
500
500 |
630
500 |
450
630 |
800
630 |
1300
800 |
1600
800 |
1600
800 |
1600
800 |
Slide face
area
LR
FB |
mm
mm |
500
500 |
630
400 |
450
280 |
800
500 |
1120
500 |
1600
800 |
1600
630 |
1600
630 |
Table
opening
LR
FB |
mm
mm |
400
180 |
500
224 |
180
224 |
710
250 |
1000
250 |
1400
320 |
1400
320 |
1400
320 |
| Opening in
uprights
FB x Ht |
mm |
200x250 |
250x250 |
250x215 |
280x260 |
280x215 |
360x380 |
360x410 |
360x410 |
Speed
variable
Min
Max |
SPM
SPM |
100
600 |
100
500 |
125
250 |
100
500 |
100
400 |
100
300 |
100
250 |
100
200 |
| Height of table from floor |
mm |
800 |
800 |
800 |
800 |
1000 |
1000 |
1000 |
1000 |
| Bolster thickness |
mm |
63 |
63 |
85 |
80 |
115 |
150 |
180 |
180 |
| Main motor power |
kw |
5.5 |
7.5 |
5.5 |
11 |
25 |
25 |
30 |
30 |
| Air supply |
Bar |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
| Electrical supply 415V, 3 Phase , 50Hz |
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