China T2250A Deep Hole Boring Machine

T2250A
Deep hole boring machine
Usage of the machine: the machine is a special equipment for boring deep hole of cylindrical workpieces. While boring, the oil supplied from the oil pressure head take the metal chips from the cutting area to the lantern and chip converyer in the front of the headstock.
The bed of the machine is rectangle quenched guide way which has high antiwear capability, the feed lead screw is installed in the middle of the guide way. The clamp workpiece of the oil pressure head adopt servo motor so it is reliable and safe. The spindle of the oil pressure head has high concentricity with the spindle of the headstock. And the change of the guide bush is also convenient.
This is a easy operating, high efficiency and environment protective deep hole boring machine.
Main Specifications and Features
specificationstechnical parameter

The range of boring diameter Φ250mm-500mm
The range of Max. boring depth 2000-12000mm
The diameter of chuck Φ400mm
Workpiece clamed dia. of steady rest Φ300mm-650mm
Dia. of the spindle bore of headstock Φ130mm
Taper of the front end of the spindlemetric 140#
Spindle speed range and steps 3.15-315r/min, 21 grades
Spindle speed of the travel head with
rotating boring tube 60-1000r/min, 12 grades
Motor of travel head with rotating boring tube N=30kW, 1460rpm
Feed speed 5-1000rpm, stepless
Rapid travel speed of the carriage 2000mm/nin
Feeding motor N=7.5kW YASKAWA servo motor
Motor of oil pressure head N=7.5kW YASKAWA servo motor
Cooling pump motor N=5.5kW n=960r/min , 2 groups
Flow of coolant 25 stere/htwo group immersible pumps
Main accuracy of the machine IT7-IT9

Optional scheme
1. The travel head with rotating boring tube is standard scheme for 1m-3m machine, and it's optional for above 4m machine.
2. the machine can be mated with CNC system, e.g. SIEMENS 828D or FANUC oi mate or GSK or KND system or other system chosen by user..but the CNC type TK2250 is mated with double racks, it's different with the lead screw structure.