WM SERIES GANTRY TYPE MACHINING CENTER

The Gantry type machine center is an advancement of the horizontal and vertical CNC machine centers. It incorporates more dimensions of the cutting tool thus able to handle more variety of operations.

The technology of high speed machining has been advanced more by the development of the gantry type-machining center. This equipment is able to handle larger volume of work while enhancing accuracy and productivity. Incorporation of the special five-axis spindle allows better machining due to the added dimensions, which the spindle head can be manipulated. This type of machine provides great savings for manufacturing space while also providing a great variety of cutting solutions. Its construction structure provides great stability and rigidness suited for milling operations. The automatic tool changing mechanism enhances the machine performance and productivity.

The gantry type-machining center is a step towards unmanned machining, as well as great accuracy in metal milling operations. It is suited to a broad range of applications including finish operations, milling of large and medium work pieces, machining of curved surfaces as well as mould machining.

Main Features:-

GDM series gantry type machining center is a new generation with portal fixed and table moving.
Adopting a modularized design, changeable worktable and spindle (5-face machining of special spindle) can manual and automatic change according to customers’ requirements.
This machine can be applied to parts of rough and finish machining, large and medium size, mould and shape of plate, disc, shell, chest or curve surfacing as well.
GDM series have high working performance with suitable specifications, which are high reliability, high precision and high rigidity.
GDM gantry type machining centre adopts a configuration design of fixed portal frame, combined with a moving table on X- axis, so integrate a large space and maximum rigidity.
The Z-axis “Spindle” is designed to move out of table to widen machining range.

Technical Data of Gantry Type Machining Center

Product Code.		Units	WM 10 / GM 122	WM 10/ GM 123	WM 10 / GM 124	WM 10 / GM 132	WM 10 / GM 132	WM 10 / GM 182	WM 10/ GM 183
Model No.			GDM-1220	GDM-1230	GDM-1240	GDM-1321	GDM-1326	GDM-1820	GDM-1830
Workable	Table size	mm	1250x 2000	1250x 3000	1250x 4000	1300x 2100	1300x 2600	1800x 2000	1800x 3000
	Distance between two columns	mm	1450	1450	1450	1700	1700	2200	2200
	Max. load capacity	kg	3000	5000	7000	6000	7000	6000	8000
	Width of T-slot	mm	22/H12	22/H12	22/H12	7-22/H12	7-22/H12	9-22/H12	9-22/H12
Machining Capacity	Table travel (X axis)	mm	2200	3200	4200	2000	2500	2200	3000
	Saddle travel (Y axis)	mm	1250	1250	1250	1700	1700	2500	2500
	Ram travel (Z axis)	mm	750	750	750	800	800	1000	1000
	Distance between spindle and table surface (Max./Min)	mm	950/200	950/200	950/200	950/200	950/200	950/200	950/200
Spindle	Spindle taper		BT-50	BT-50	BT-50	BT-50	BT-50	BT-50	BT-50
	Speed range of spindle	r/min	40-6000	40-6000	40-6000	40-6000	40-6000	40-6000	40-6000
	Max. output torque	Nm	560	560	560	560	560	560	560
	Main motor power	KW	18.5/22	18.5/22	18.5/22	18.5/22	18.5/22	18.5/22	18.5/22
Feeding	Max. cutting feed	m/min	1-10	1-10	1-10	1-8	1-8	1-6	1-6
	X/Y/Z axis rapid travel speed	m/min	20/20/6	20/20/6	20/20/6	24/24/24	24/24/24	12/12/10	12/12/10
Positioning accuracy	X axis (with raster scale)	mm	0.026 (0.020)	0.030 (0.020)	0.040 (0.020)	0.040 (0.020)	0.035 (0.020)	0.035 (0.020)	0.035 (0.020)
	Y axis (with raster scale)	mm	0.020 (0.010)	0.020 (0.010)	0.020 (0.010)	0.026 (0.020)	0.026 (0.020)	0.026 (0.020)	0.026 (0.020)
	Z axis (with raster scale)	mm	0.015 (0.010)	0.015 (0.010)	0.015 (0.010)	0.015 (0.010)	0.015 (0.010)	0.015 (0.010)	0.015 (0.010)
Repeatability accuracy	X axis (with raster scale)	mm	0.018 (0.012)	0.018 (0.012)	0.026 (0.016)	0.026 (0.016)	0.022 (0.014)	0.022 (0.014)	0.022 (0.014)
	Y axis (with raster scale)	mm	0.012 (0.006)	0.012 (0.006)	0.012 (0.006)	0.016 (0.012)	0.016 (0.012)	0.016 (0.012)	0.016 (0.012)
	Z axis (with raster scale)	mm	0.010 (0.006)	0.010 (0.006)	0.010 (0.006)	0.010 (0.006)	0.010 (0.006)	0.010 (0.006)	0.010 (0.006)
ATC	Magazine capacity	pcs	32;40; 50;60	32;40; 50;60	32;40; 50;60	32;40; 50;60	32;40; 50;60	32;40; 50;60	32;40; 50;60
	Max. tool length	mm	400	400	400	400	400	400	400
	Max. tool Weight	Kg	25	25	25	25	25	25	25
	Max. tool diameter	mm	125/250	125/250	125/250	125/250	125/250	125/250	125/250
	Net weight	Kg	28000	33000	40000	23500	26500	23000	29000

Gantry Type Machining Center Accessories:-

Standard Accessories :	Optional Accessories :
Fanuc 18i CNC control	CNC control for Siemens 840D or Rexroth MTX
Rigid taping	ATC
Spindle positioning with outer encode	Boring and milling head
Spindle box with two shifts variable gearbox	Closed loop raster scale feedback system
Spindle blowing devices	Renishaw tools and work piece measurement
Foot switch for loose and tight tool
Air – condition for electrical cabinet
Balancing device for ram
X/Y axis guide protection
Feedback for 3-axis encoder
Microwave Pulse Generator (MPG)
Cutting fluid circulation systems
Working and warning lamp
Double chain chip conveyor
Cleaning water gun
Half protection for working table
Automatic lubrication system for guide

The Computer numeric control is one of the most important accessories of the gantry-machining center. It allows easier conversions of the design on to work pieces thus reducing human errors.

The spindle-blowing accessory is also an important component of the equipment in the removal of chaff generated during the milling operation. Too much chips on the spindle interferes with spindle rotation and reduces tool life.

The lubrication circulation system helps in cooling down the tool during operation, which increases tool life. It also reduces friction on the parts hence adding the overall life of the machine.

Additional safety has been made by incorporating a half protection for the working table, which also prevents dislodged chips landing on to bearings, which can cause damage to the equipment.

Other important accessories include the air conditioning for the electrical system, ram balancing device, X/Y axis guide and microwave pulse encoder

Other Optional Accessories for Gantry Type Machining Center

Other optional accessories may be installed with the machine include the CNC control ,the milling head, the closed loop raster scale for feedback and accompanying tools for work piece measurements. Yash machine tools incorporate these accessories to improve on the machine performance, making their designs the best in the market.

Gantry Type Machining Center Models and Distinguishing Features

Various models produced by yash machine tools include the GDM 1220, GDM 1230, GDM 1240, GDM 1326, GDM 1820 and the GDM 1830. The difference in the models is related to the size of the table, machining capacity, cutting speed and the total load capacity.

Maintenance and Servicing Support

Yash machine tools manufacture a wide range of high quality machine tools as well as offering great customer service and support. The gantry type machine center comes with a whole range of spare parts for any breakdowns that may occur. They also offer technical guidance on the machine specifications and servicing.

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