Engineering Specification, 1200 ton Horizontal Stretching Machine (O/No. 60750)
1200 ton Horizontal Stretching Machine (O/No. 60750)
This page contains a précis of the Engineering Specification for the machine stated above (as originally supplied).
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Process: | Stretching Aluminium Plates between the following sizes | |
Finished Plate Length: | 50′ 0″ maximum length finished. | |
Width: | 12′ 0″ maximum, 7′ 0 ” minimum | |
Construction: | Horizontal type with fabricated steel frame and designed for overhead or side loading | |
Main Characteristics: | Number of approach rams | 2 |
Number of main rams | 2 | |
Combined Power of main rams | 1200 tonf | |
Stroke of main rams | 5′ 0″ | |
Power of traversing rams | 20 tonf | |
Maximum width of jaws | 12′ 0″ | |
Maximum opening of jaws | 3″ | |
Floor level to grip centreline | 5′ 4″ | |
Overall Dimensions: | 89′ 6″ x 17′ 6″ x 8′ 0″ high (without pumps) | |
Height above floor level 9′ 6″ clearance (without pumps) | ||
Working Pressure: | Main ram | 2 tonf/sq. in |
Grips | 3000 psi | |
Lubrication: | Hand Gun only | |
Tanks: | One – 450 gallon main pump supply and filling tank | |
Two – 200 gallon grip pump supply and filling tanks | ||
Pump Unite: | Main pumps – two Towler Electraulic Patent high speed pumps, type 3H300, each directly coupled to a 45HP, 1440 rpm, screen protected squirrel cage motor | |
Grip pumps – two Towler Electraulic Patent high speed pumps – type A6/A1, each directly coupled to a 17 1/2 HP, 1440 rpm, squirrel cage motor | ||
Controls: | Towler balanced valves with hand operated oil servo control | |
Speeds: | Main ram approach | 5.4 in/s |
Main ram stretching | 0.212 in/s | |
Main ram return | 2.32 in/s | |
Grips approach | 1.0 in/s (approx.) | |
Grips return | 0.8 in/s (approx.) | |
Grips pressure | Up to max. in 4 seconds. approx. | |
This specification was kindly provided by Rhodes Interform
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