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Steel Tube Necking-in & Closing Machine


I Description of steel tube necking-in & closing machine:
This series machines adopt hot spinning technology, mainly for necking-in and closing steel tubes and pipes, especially for those industries such as automotive shock absorbers, motorcycle vibration dampers, SCBA cylinders, accumulator shells, small gas storage cylinders, boiler tubes, chemical pipes, etc.



II Main features of steel tube necking-in & closing machine:
-OMRON PLC control and Weinview touch screen operation
- Induction heating method, clean & quick 
- Both necking-in and closing; Reserved hole diameter after necking-in can be adjusted freely; End wall thickness after closing can be increased for pressure withstanding, no need welding more.  



 Closing end can be flat, spherical, ellipsoidal or pyramidal, easy adjustment
- Hydraulic clamping, automatic
- Necking-in & closing dies are made by cobalt-base alloy, high temp. resistant and abrasion resistant, long life
- Compulsive lubricating system, prolonging life of dies
- Auto loading & unloading device is optional  

II Main technical data of steel tube necking-in & closing machine:

Item RXYJ-40 RXYJ-70 RXYJ-80
Suitable tube diameter 14-40mm 20-70mm 30-80mm
Suitable tube wall thickness 1-2.5mm 1-5mm 1-4mm
Suitable tube length 80-600mm 80-600mm 120-500mm
Necking-in / closing speed 5~15s
Production speed 200~400pcs/h 100~300 pcs/h
Main motor power 5.5kW 6.5kW 8.5kW
Induction heating power 25kW 35kW 35kW
Machine dimension 1500x2200x1600mm 1600x2250x2050mm 3000x2800x2200mm
Machine weight 1850kg 2000kg 3500kg

IV Sample photos of end necked-in or closed:

 
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