Product Catalog

DK7740F Big taper stepper control CNC Molybdenum Wire Cut EDM

Model No.︰DK7740F

Brand Name︰SUZHOU BAOMA

Country of Origin︰China

Unit Price︰-

Minimum Order︰1 pc

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Product Description

CNC WIRE CUT EDM DK7740D		Unit	DK7740D
Worktable size (L x W)		mm	500 x 785
Table travel(X x Y)		mm	400 x 500
Max. workpiece thickness		mm	500
Max. taper angle/plate thickness		degree/mm	±30°/100
Max. machining speed		mm²/min	150
Precision	Octagon	mm	≤0.015
	taper	mm	≤0.1
Max. working current		A	6
Roughness, three cutting		μm	≤1.5
Wire diameter		mm	0.15~0.2
Wire travelling speed		m/min	5~11
Load of table		Kg	500
Working solution			working solution BM-2/BM-4 or Saponification Liquid
Working reservoir capacity		L	56
Power supply			3N-380V/50Hz
Power consumption		KVA	3
Wire guide frame			Adjustable
Machine dimensions(L x W x H)		mm	1450 x 1000 x 1550
Package dimensions(L x W x H)		mm	1800 x 1400 x 1800
Machine weight		Kg	2000
Controller type			BMW-2009

UNIVERSAL PARAMETERS

Max. Cutting Speed	150 mm2/Min.
Wire Speed	5 - 11 m/Min
Max. working Current	6 A
Wire Diameter	Dia. 0.15-0.2mm
Work Solution	BM2/BM4 Water Base Working solution
Water Tank	56 L
Rated Voltage	AC~,3N, 220-415V,50/60HZ
Ratde Power	3 KVA
Wire Guide Frame	Adjustable
Controller	BMW-2009

Machine Configure

Standard Device

Step Motor for X/Y Axis		Manual Z Axis adjuster

Optional Device

Servo Motor for X/Y Axis	Z Axis Motorized

DRO(Digital Read Out)	Aluminum Cutting

	WEDM take wire (Molybdenum wire or Tungsten and Molybdenum alloy wire ) as electrode, working liquid as media, Electrical discharging happened between the electrode and the work piece by using of the high frequency impulse power and the high peak current to bring high heat and high energy to erode the work piece. The preconceived track of the wire is controlled by the moving of X-Y axis and U-Y axis which are driven by the machine. Then the work piece is processed.
"Baoma" machines featured with beautiful shape, novel structure, superior performance, and convenient operation. Meanwhile they are of good rigidity, small cutting force , big load bearing, steady movement, and safety operation. they are suit to cut the workpiece of high precision, fairly good rigidity, high toughness, especially the cold die, extrusion die, plastic mould, gear cutter hob, precision component (including big taper, same taper, unequal cone, laid abnormity and etc.)

Medium speed wire cut EDM is a new generation of EDM machines which are widely used in the fields of moulds, automobile parts, aeronautics and astronautics, electronic instrument, military, light industry, and household appliances.

Machine Body

The Taper Cutting Mechanism: It’s driven by two step-motors to realize U and V movement, which can make the 4 axis (X,Y,U,V) simultaneously movement.	Structure of wire frame： The symmetric structure for the upper and down frame to keep the tension of moly wire within the scope of normal tension. There are same quantity of arrange wire pulley, which make same tension in every point of the moly wire. So no matter thin or thick work piece, the moly wire is not easy to break down. Comparing with “C” Shape structure, which always been used in other factories’ machine. Our structure short the wire travel route to avoid the shock during the running of the wire and make sure the accuracy.	The working table: The working table with T-shape slots, we supply a standard clamp for free.

The wire winding and traveling system: Wire winding drum is made of special steel, which is more stable, anti-corrosion. Emerson (U.S.A) converter control the running direction, Which can be used longer time, improve the precision, roughness and reduce the wire broken.	The Machine Body: Adopt the base of Meehanite cast iron (HT250), the cast of “Baoma” machine is made by the resin-sand technology with the influence of high temperature annealing, which makes the machine body of high load intensity and has ability to resist distortion. And the max loading of the working table is better than other Chinese machines.	Guideway and Ball Screw: Adopt Steel Linear guideway and precious ball screw from Taiwan.

Controller (BMW-2008)

Controller Layout:

The basic framework of the BMW controller adopt professional profiles and connection fixed facilities by the technology from German, the controller has realized both elegant appearance outside and rational layout inside. The effect of sealing, electromagnetic compatibility and heat dissipation is well and the controller must be high temperature aged before being sold to make sure the components be able to work for a long time continuously.

Computer and Monitor:

Adopt High Performance Industrial computer, P4 or better, 1G RAM, 160G Harddisk, support INTERNET, with LCD Color Monitor.

High Frequency Power and the Internal Circuit:

Adopt the digital high frequency power, the power generator is controlled by BMXP software, which can improve the precision and the stability of the pulse signal and reduce the probability of the high frequency power failure, advance the machining efficiency and the quality of working piece. Max. Current 6A ,max efficiency>=120m2/min, surface roughness<=1.2um. The modular design is used in the internal wiring, which can reduce the probability of the failure, and it’s easy to maintain.

The Control System:

Adopt BMXP pm-k system software, the operating platform is WINDOWSXP, the Embedded System to achieve the seamless connection of various kinds of software such as AUTOCAD. Our machine has optimizing database and the function of multi-cutting, our client can choose different combination according to different working piece to be cut.

Cooling System

New style of three levels filtration tank:

first level: filter cotton, second level: copper mesh, third level: 5um paper filter; can prolong working solution life time and improve both working solution cleanliness and residue discharge ability, so save cost but improve work piece smooth finish ( cooperate using “Baoma” new type working solution is more friendly to operators and environment ). The capacity of the tank is 56L.

The Cooling Pump:

Adopt import booster pump which is able to work stably long time.

BMXP Boot Screen

BMXP Control UI

BMXP Programming UI

BMXP Professional DataBase

Plug-in For AutoCAD

INTELLIGENT BMXP CONTROL SYSTEM

BMXP Intelligent software, which integrates the program and control and based on Windows Xp. This new designed BMXP software is the unique software for WEDM running on the condition of windows XP.
Using the PCI slot controller card and the High-tech Industrial computer, which greatly enhanced the stability of control and greatly reduced the computer the failure rate.
To achieve a fast and convenient computer communication network, through network technology, graphics, data and program transmission, can be directly controlled by the technical design department since the first establishment of a program
Embedded Control system can be smoothly connected with many design software such as AUTOCAD & etc.
The search function of mechanical origin enable the transmission screw pitch compensation, in order to greatly improve the positioning accuracy, especially in Servo control system.
With a large storage capacity database, which accumulated from many experiences. User can choose the suitable parameter according to deferent working conditions. Users can adjust machining parameters to establish a database at any time according to their own experience
The parameters of pulse power is directly controlled by the software , so as to not only improve anti-jamming capability in pulse power output, but also increase the roughness of work piece and reduce the loss of molybdenum wire .
Pulse power of the control parameters directly from the software to control and improve the ability of pulsed power output of the interference, thereby increasing the roughness of workpiece, reducing the loss of molybdenum wire, you can choose a variety of pulse waveforms for a variety of processing conditions, improve the cutting ability of the workpiece.
Simplifies the operation buttons on the control panel, a large number of button functions directly controlled by software to achieve.

BMXP Software basic function

Coordinate system: absolute coordinate, incremental coordinate (relative coordinate)
Functions of coordinate transforming, zoom in and zoom out, rotating and tracking display in real time
Functions of interpolation of straight line and circular arc.
Function of taper processing
Function of processing different top and bottom shape
Functions of short circuit and wire-break handling
Functions of memorizing when power was cut and auto-stop after processing
Functions of auto-edge position and auto-centering
Function of auto-adding transitional arc (Arbitrary angle)
Function of processing backward
Functions of menu technology and auto-programming;
Data transmission
functions of multi-cutting

CNC System Configuration and Performances

CNC hardware
1. Indutrial PC: P4;
2. 1024MB RAM;
3. 160GB hard disk;
4. 15″ LCD color display;
5. USB and INTERNET
CNC software and operating platform:
1. CNC Auto-program and control function
2. The operating platform is Windows XP
CNC system technical performance:
1. CNC 4 axes simultaneously control;
2. Function of processing different top and bottom abnormities parts
CNC system working environment:
1. The voltage: 3-phase 380V± (1%-10%), 50Hz (customizing accepted)
2. Relative humidity: 40%～80%
3. Cleaning environment, the dust with active gas and precipitation is not allowed; make sure there are no machines making much dust while working.
4. No vibration source, no electromagnetic wave source in the rang of 20m

**We reserve the right to change specifications without prior notice **

Packing Size

Standard Package: 4 plywood cases/one Unit

Item	Packing Size	G.W / N.W
Controller	900 x 800 x 2050 mm	150/120 Kg
Water Tank	950 x 650 x 900 mm	45/40 Kg
Computer	700 x 700 x 450 mm	25/15 Kg

Packing Features

Vacume Packing	Plywood Pallet	Saftey Fixing	Careful Deatils

Standard Packling List

No.	Item	Quantity
01	Main Machine	1 Set
02	Controller	1 Set
03	Computer	1 Set
04	Water Tank	1 Set
05	Pump motor and cable line	1 Set
06	Water supply pipe	2 Pcs
07	Power supply cable	1 Pc
08	Handle wheel	1 Pc
09	Wire tension tool	1 Pc
10	Strength magnet	4 Pcs
11	Anchor bolts	7 Pcs
12	Pedestal	7 Pcs
13	Dismantle tool for wheels	1 Pc
14	Cross screwdriver 6”	1 Pc
15	Straight Screwdriver 6”	1 Pc
16	Open end wrench 17”	1 Pc
17	Guide Pulley	2 Pcs
18	Traverse Pulley	2 Pcs

Installation Layout

wire cut edm structure

Model	Width a(mm)	Length b(mm)

DK7725	940	1516

DK7732	940	1516

DK7740	1070	1676

DK7750	1100	1960

DK7763	1400	2040

DK7770	1570	2085

DK7780	1630	2205

Price Terms︰ FOB Shanghai

Payment Terms︰ TT/LC

Packing︰ 3 plywood cases/unit, vacuum packing

Lead Time︰ 10days

Standards Certificate︰ CE;ISO9001;ISO14001

Control System︰ BMXP/AUTOCUT + WINXP + AUTOCAD2004-2006