Introduction of Portal slewing crane Portal slewing crane is a mobile, full-revolving, and four-bar combined crane. Its arms and counter-weight are balanced. There are 2 types of portal frame: cylinder and four outriggers.Portal slewing crane Advantages：Lightweight body, Low purchase cost、Low power consumption & operating cost、With hydraulic clamp to prevent sliding、With anti-tipping to prevent typhoon. pictures of Portal slewing crane Application of Portal slewing crane Portal slewing crane is a kind of hoisting machine especially used in port, with small investment and swiftness benefit for loading and unloading front apron container, sundries and bulk cargo. It is also used in materual handing dockyard, ship building and repairing yard, metalluygy industry. Data of Portal slewing crane Model Unit MQ530 MQ1033 MQ1633 MQ4030 MQ6030 Item Datum HoistCapacity Hoist Capacity Ton 5 Ton 10 Ton 16 Ton 40 Ton 60 Ton Duty Range A A6 A6 A6 A6 A6 Working Radius M 8.5-30 9-33 9-33 11-30 10-30 Above the…

Introduction of Port Jib Crane Port Jib Crane has been extensively applied to loading and unloading at port and materiel handing at dockyard and metallurgy industry. The main structures are composed of steel frame, lifting mechanism, luffing mechanism, slewing mechanism, crane travel mechanism spreader device (grab,container spreader, and hook and electrmangnetdisk), electrical equipment and other necessary equipments for safety. Steel structures include jib and A-frame, slewing platform and gantry frame. pictures of Port Jib Crane Features of Port Jib Crane Dimension of Port Jib Crane Data of Port Jib Crane Load Capacity (ton) Outreach (m) Lifting height above rail/under rail  (m) Gauge (m) 5 ton 15~25m 15~25/10~15m 8.0~12m 10 ton 15~25m 15~25/10~15m 8.0~12m 15 ton 15~25m 15~25/10~15m 8.0~12m 20 ton 20~35m 20~35/10~15m 9.0~12m 25 ton 20~35m 20~35/10~15m 9.0~12m 30 ton 20~35m 20~35/10~15m 9.0~12m 40 ton 20~50m 20~35/10~15m 9.0~12m 50 ton 20~50m 20~35/10~15m 9.0~12m 60 ton 20~50m 20~35/10~15m 9.0~12m 80 ton 30~60m…