Sand box equipped with a selection of works sand, sand box design tainted sand bottom hole, when the need to remove the frame, as long as the sand box sand release, bailey beam was slowly falling. Designed well in advance of need fall height, such as a 30cm, 30cm compaction is required sand stored in the sand box. So I did not know you understand? In fact, the production is very simple sand box. Is a steel box sets, unloading sand bottom with holes, steel box filled with sand, sand box manufacturer, braved heavy pressure from the upper beam concrete loads. Sand box material classification according to the application and the characteristics of the material used to hand-shape timber with a slip casting mold sand box. Manufacturing convenient, light weight, low cost, but life is short, suitable for single and small batch production of small aluminum castings for machine molding by slip casting mold sand box or floor molding sand box. Light quality, but low strength, sand box specifications applicable to single or mass production of small iron castings for machine molding, hand molding pressure molding or casting mold sand box. Manufacturing convenience, good strength and stiffness, Qingzhou sand box, widely used in the production of ductile iron for medium and small machine molding, pressure molding, hand molding air impact modeling or casting mold sand box. Strength and stiffness and durable than cast iron sand box thin wall, light weight steel for large, medium sand box. High strength and durable, but the high cost for steel workshop steel, steel for simple manual single flask. Sand box welded construction machine modeling applications are considerable. Stamping casting mold sand box common in the introduction of automatic online Qingzhou sand box sand box _ _ Dragon Industrial sales by Shandong dragon Development Co., Ltd Qingzhou sand box sand box _ _ Dragon Industrial sales Shandong dragon Development Co., Ltd. (www.julongshiye.com/) this year introduced a new upgrade, the above picture is for reference only, please call the contact picture on this page or telephone obtain the latest information, contact: Mr. Wang.