Description

Mandrel Connecting Machine is a dedicated equipment in seamless tube rolling set. Its purpose is to connect or disconnect mandrel working length, extension length and tail piece by means of screwing or unscrewing operations. The outstanding particulars are outlined as follows: 1) Main tongs (rotating clamping chuck) is driven by a five pointed star type great torque hydraulic motor and reducing gears, being simple in structure and reliable in operation, as distinct from Italian machine that rotating clamping chuck is driven by means of pneumatic clutch-brake group and reducing gears. 2)The component to be screwed is automatically clamped in the main tongs (rotating clamping chuck) when the main tongs (rotating clamping chuck) rotates, and automatically slack off when reverse rotating, as distinct from Italian one with hand-operated rotating chuck.3)The component to be crewed is clamped or slack off in the back tongs (stationary chuck) by means of pneumatic cylinder, as distinct from Italian one, where the component to be crewed is clamped without rotation by a stationary chuck-hydraulically operated.4)The mandrel and its extension length are supported by means of idle roller conveyor that can be positioned according to diameter (height is adjustable).5)Insertion or removal of the mandrel and its extension length in or from this machine are performed by means of handling equipment, which is composed of motorized vertical biconical rolls. The machines we provided are highly deemed of its behavior, quality and reliability by users. Up to now four sets of the machines are successfully used, and four sets are now under negotiation with users: Tiajin Co MM**5/******0 Mandrel Ф***- Ф**0 Torque ***** Hegy Co MM**5/******0 Mandrel Ф***- Ф**0 Torque ***** Wuxi Co. MM**0/******0 Mandrel Ф***- Ф**0 Torque ***** Ansan Co M**0/****0 Mandrel Ф***- Ф*0 Torque ***** Machines being under negotiation: Tianjin User Mandrel Diameter Ф**5ï&frac*2;�Ф**0 Hubei User Mandrel Diameter Ф**8ï&frac*2;�Ф**0 Wuxi User Mandrel Diameter Ф**5ï&frac*2;�Ф*0 India User MM**0/******0 Mandrel Diameter Ф***- Ф**0 Torque Max. ***** Place of origin: Lanzhou, China