Xka9920 CNC Rail Milling Machine with Fixed Crossrail

Product Description

Product Description
XK97/XK99 series steel rail milling machine is developed as per the demand of rail machining industry. The machine is specially designed for machining high carbon steel rail.
The main performance characteristics:
All fundamental big parts adopt resin sand mold quality casting iron. Gantry travel adopts double motor, double inspection and drive in sync. Auto clamping by spindle, 90° auto orientation. Hydraulic balance mechanism is adopted for ram, rolling block-inlaid steel guideway for load relieving is adopted for crossrail. Bed guideway for gantry travel adopts closed type hydrostatic guideway with multiple point pump for constant oil supply. ATC specialized for rail milling is adopted.
The machine is equipped with fully digital Siemens CNO system. The main drive adopts AC spindle motor. Drive of each axis adopts AC servo motor with related speed change and drive unit. X axis feeding axis adopts position encoder to realize half closed loop control. Y and Z feeding axis adopt optical scale to realize full closed loop control.
All fundamental big parts adopt resin sand mold quality casting iron. Gantry travel adopts double motor, double inspection and drive in sync. Auto clamping by spindle, 90° auto orientation. Hydraulic balance mechanism is adopted for ram rolling block-inlaid steel guideway for load relieving is adopted for crossrail. Bed guideway for gantry travel adopts closed type hydrostatic guideway with multiple point pump for constant oil supply.
The main drive adopts AC spindle motor. Drive of each axis adopts AC servo motor with related speed change and drive unit. X axis feeding axis adopts position encoder to realize half closed loop control. Y and Z feeding axis adopt optical scale to realize full closed loop control.
Product Parameters

Item	Unit	XKA9912		XKB9912	XKA9920			XKB9920
Portal QTY		1		1	1			1
Table width	mm	1250		1250	2000			2000
Table length	m	As per requirement
Loading capacity of table per unit length	t/m2	3				5
Distance between columns	mm	3000		3500	4800			5300
QTY of boring and milling head (for one portal)		1		1	2			2
Max. distance from spindle end to table surface	mm	750			750
Main motor power	KW	58			58
Ram vertical travel	mm	600			600
Max. spindle speed	r/min	600	2000		600		2000
Max. spindle rated torque	Nm	3800	5000		3800		5000

Detailed Photos
XK99 movable table type rail milling machine adopts a fixed cross-rail. According to the width of the table, one or two ram type milling heads can be equipped on the crossrail; there are 3 or 5 feed axes (table-X axis, boring and milling head-Y/Y1 axis, ram-Z/Z1 axis).3 axis simultaneous control can be realized.


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