DK7720 EDM Wire Cutting Machine Industrial Machinery

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Section : Machinery
Category : Lathe
SKU : 1600850779350

Product Informations

Taizhou Ruite Machinery Equipment Co., Ltd. produces whole series of DK77 CNC edm wire cutting machines,which adopts high precision

V-shaped guide rail(Linear guide rail optional) and P3-grade high precison ball screw. The products have high quality, complete models, long service life and high precision. Machine specifications can be customized according to customer needs,like non-standard models DK7740(45)F,DK7750(55)F,DK7763F,DK7780F,DK77100F,DK77120F or even larger models.

The company also produces ±30°, ±45° swing large taper machines and CNC high-precision middle speed edm wire cutting machines(Precision≤±0.005mm,roughness≤1.0μm). The following are the main parameters of DK77 series machines:

1.Standard maximum cutting taper:±6°/80mm;(±15°,±30°,±45° are optional)
2.Precision ≤ 0.02mm,according to GB7926-2005 standard;(If linear guide equipped, the precision can reach 0.01mm)
3.Best surface roughness ≤ Ra2.5μm(single-cut),Ra1.5μm(multi-cut);
4.Molybdenum wire diameter:0.1-0.2mm;
5.Max. cutting speed≥120mm^2/min;
6.Voltage:3 phase 380V(single phase 220V,3 phase 220V or other voltage can be customized),Power:1.5KW;
7.Working fluid:Water-based emulsion.

Model	Worktable travel(mm)	Worktable size(mm)	Max. cutting thickness(mm)	Max. load(kg)	Dimensions(mm)	Weight(kg)
DK7720	200*250	490*380	200	100	12009001300	800
DK7725	250*320	520*390	300	200	14509001500	1000
DK7735(32)	350(320)*450(400)	730*490	500	300	140011001600	1100
DK7745(40)	450(400)*550(500)	810*570	400	500	160012001600	1400
DK7745F(40F)	450(400)*630	950*600	400/600	600	160015801600	1600
DK7755(50)	550(500)*650(630)	950*650	700	700	200015001900	1800
DK7755F(50F)	550(500)*800	1140*650	700	700	200016501900	2000
DK7763	630*800	1140*750	700	1000	210017002050	2400
DK7763F	630*1000	1350*750	700	1200	225018502050	2800
DK7780	800*1000	1350*980	900	2000	240019002350	4000
DK7780F	800*1200	1600*1050	900	2400	255019502400	4500
DK77100	1000*1200	1600*1100	1000	2600	285025002500	5200
DK77100F	1000*1400	1800*1250	1000	2800	295020502500	5800
DK77120	1200*1400	1800*1350	1000	3000	305027502500	7500
DK77120F	1200*1600	2000*1500	1000	3500	310028502500	8400
DK77160	1600*1800	2000*1700	1000	4000	325030002500	10000

Products Description

The Sample Shows

Shipping Timeframes: All orders are processed within 2-5 business days (excluding weekends and holidays). After your order has been processed, the estimated delivery time is before 14 Dec, 2026, depending on customs, Please note that due to high demand, some items may experience longer shipping times, which will be communicated at order confirmation email.
Order Processing Time: Please allow 2-5 business days for us to process your order before it is shipped . Orders placed after 16:00 on Fridays, or during weekends and public holidays, will begin processing on the next business day. Processing times may be extended during peak seasons or sales events.
Manufacturing Time: Some products needs manufacturing time, the manufacturing process will take approximately 10-30 business days depending on the product. This timeframe may vary depending on the complexity of the product and current demand. but this will be communicated with you during order confirmation.
Returns and Exchanges: We offer a 30-day return policy for most items. If you are not completely satisfied with your purchase, you may return it within 30 days of receipt for a refund or exchange. Items must be unused, in their original packaging, and accompanied by proof of purchase. Return shipping costs are the responsibility of the customer, unless the item was damaged or defective upon arrival.

1. What is the DK7720 EDM Wire Cutting Machine?

The DK7720 is part of the DK77 series CNC EDM wire cutting machines produced by Taizhou Ruite Machinery. It is a high-precision CNC wire EDM designed for industrial cutting with V-shaped guide rails (linear guide optional) and P3-grade high-precision ball screws.

2. What are the main accuracy and surface finish specifications?

Standard positioning precision is ≤0.02 mm (measured to GB7926-2005). With linear guide rails the precision can reach 0.01 mm. Surface roughness can be as good as Ra2.5 μm in single-cut and Ra1.5 μm in multi-cut operations.

3. What taper cutting angles are supported?

The standard maximum cutting taper is ±6° per 80 mm. Optional taper ranges include ±15°, ±30° and ±45°. The company also supplies ±30° and ±45° large-swing taper machines.

4. What wire and cutting speed capabilities does the machine have?

The DK77 series typically uses molybdenum wire with diameters between 0.1–0.2 mm. Maximum cutting speed is ≥120 mm²/min (actual speed depends on material, thickness and cutting parameters).

5. What are the electrical and power requirements?

Standard supply is 3-phase 380 V and the machine power is 1.5 kW. Other supply options such as single-phase 220 V, 3-phase 220 V or custom voltages can be provided on request.

6. What working fluid does the DK7720 use?

The DK77 series uses water-based emulsion as the working/cutting fluid.

7. What are the DK7720's table travel, worktable size, max cutting thickness and load?

For the DK7720 model the worktable travel is 200 × 250 mm, worktable size is 490 × 380 mm, maximum cutting thickness is 200 mm and maximum table load is 100 kg. Machine dimensions are approximately 1200 × 900 × 1300 mm and weight about 800 kg.

8. Which other models and sizes are available in the DK77 series?

The DK77 series includes many models and non-standard/custom models such as DK7740(45)F, DK7750(55)F, DK7763F, DK7780F, DK77100F, DK77120F and larger machines, with worktable travels ranging from ~200 mm up to 1600 mm and corresponding larger capacities and sizes.

9. Can the machine be customized to special requirements?

Yes — Taizhou Ruite offers customization for non-standard models, different electrical supplies, guide rail options (V-shaped or linear), different taper capabilities, and larger machine sizes to meet customer requirements.

10. Are there higher-precision versions available?

Yes. The company also produces CNC high-precision middle-speed EDM wire cutting machines capable of precision ≤±0.005 mm and surface roughness ≤1.0 μm for applications requiring greater accuracy.

11. What consumables and spare parts will I need?

Typical consumables include molybdenum wire (0.1–0.2 mm), water-based emulsion, filters and possibly dielectric system components. Replacement parts and service items can be supplied by the manufacturer or authorized distributors.

12. What basic maintenance is recommended?

Regular maintenance includes keeping the work tank and filters clean, monitoring and replenishing water-based emulsion, inspecting and replacing wire guides and wires, checking ball-screw and guide lubrication, and performing routine machine-level alignment and electrical checks per the operator manual.

13. What materials can the DK7720 cut?

Wire EDM is suitable for electrically conductive materials such as hardened steels, tool steels, stainless steels, titanium, copper, and some exotic alloys. Actual performance depends on material thickness, conductivity and cutting parameters.

14. How do I get pricing, lead time, installation and after-sales support?

For detailed pricing, lead times, installation, commissioning and after-sales support, contact Taizhou Ruite Machinery (or the authorized distributor). They can provide quotations, customization options, shipping schedules and service agreements based on your location and requirements.