1) Girder will be used of special square tube, and it won’t be out of shape under long high tension force, though its tension force could be 40-50N
2) The three girders will move out-and-back and you will be able to adjust the stretching area according to the screen frames’ size, as there is Boring Grinding Tube as flexible heaver.
3) Three kinds of chuck: A. Steel Chuck,adopting specialized tension chuck, whose base was bended and welded by steel plates of 4-5 cm thickness. B. Single Aluminum Chuck The aluminum alloy material of high quality was formed into chuck by special mould at once C, So these kind chucks have high precision, clips meshes smoothly and won’t let meshes slide out. C. Double Aluminum Chuck, It also formed by high-class aluminum alloy material in special chuck mould at once and it will control by double chucks to clip meshes stably.
4) There are rubber articles under the fixtures to let clip screens on the same force tightly but not damage screens
5) It is equiped with Cycloidal reducer, and it could be adjusted on a straight stretching stroke very freely by using lever principle. Its stretching stroke will reach 300-500mm. The boring grinding tube was used the steel body of oil cylinder, which wears resistance.
6) Jacking the meshes up electrically, you could adjust the height according to your thickness of screen frames. This machine could avoid the weakness of out-of-step jacking up by air cylinder.