Alternatively, as shown in stretch wrappin g machine, the foremost and second actuation process 556 and 554 may include piston cylinders 556 and 558 installed on the no-revolving structure 516. The piston cylinders 556 and 558 can be operatively coupled on the second and first longitudinally stretching out clamp members 532 and 530 by wires 560 and 562 or other appropriate linkages. Throughout procedure, the piston cylinders 556 and 558 can be selectively powered to extend and retract the wires 560 and 562. The piston cylinder 556 may support, extend, and retract the first longitudinally extending clamp member 530, by retracting and extending the first cable 560. An identical connection may exist in between the piston tube 558, the cable 562, as well as the second longitudinally extending clamp member 532. Consequently, the first and secondly longitudinally stretching out clamp members 530 and 532 can be alone extendable and retractable comparable to each other, and extendable and retractable like a system.

[0116]

As demonstrated in stretch wrapping machine, the first longitudinally stretching out clamp fellow member 530 may include a packaging fabric engaging surface area 564 for contacting the film web 512; along with the secondly longitudinally stretching clamp associate 532 could include the belt construction 546 against the packaging substance engaging surface area 564 for contacting the film web 512. The buckle set up 546 may include a never-ending belt 566 rotatably attached to the 2nd longitudinally increasing clamp participant 532 by one or more bearings or pulleys (not shown). The buckle construction 546 can be movable relative to the remainder part of the next longitudinally stretching clamp fellow member 532, when being resolved relative to the packaging materials interesting surface area 564, for clamping the film internet 512 between the packaging fabric engaging area 564 and belt assemblage 546. At least one from the packaging materials engaging area 564 and belt assemblage 546 may possibly sequentially and constantly clamp the film web 512 over a portion of the film internet 512.