Small Cnc Lathe

Dongguan Jide Precision Machinery Technology Co., Ltd. is one of the most credible manufacturers and suppliers of small cnc lathe in China. If you're going to wholesale high quality small cnc lathe made in China, welcome to get quotation and free sample from our factory. All customized products are with high quality and competitive price.

 

 

The JD-250 Small cnc lathe model body is the JD-460, so pay attention to the details:

Z-axis travel: 460
Casting body rotation diameter: 450
Maximum chuck processing length: 380
Maximum collet chuck processing length: 430
A2-5 spindle (diameter: 170)
Distance between chuck and tailstock: 500
Tailstock stroke: 500
Screw: 3210

The difference is that the JD-460 is almost the same except that the X-axis travel is not as great and the turret is slightly smaller.

 

The characteristics of this machine are that the Z-axis processing length is sufficiently long and the X-axis flexibility is sufficiently small. Combining the two, you will get a very powerful machine for manufacturing long and thin products, with high cost performance.

 

 

 

Machine model	Parameter	Unit
Maximum swing diameter over bed	400	㎜
Maximum machining diameter on pallet	200	㎜
Maximum machining length	330	㎜
Spindle speed range	5000	rpm
Spindle motor power	7.5/11KW	KW
Maximum number of tools for tool holder	12	T
X-axis travel	200	㎜
Z-axis travel	450	mm
C-axis	360	°
Minimum movement of X-axis/Z-axis	0.001/0.001	㎜
X-axis/Z-axis fast moving speed	24/24	m/min
Tailstock sleeve model	4#	MT
Tailstock sleeve travel	280	mm
X-axis/Z-axis repeat positioning accuracy	≤0.003/0.004	㎜
Surface roughness	≤0.63	um
Spindle bore	Φ56	mm
Spindle bar diameter	Φ45	㎜
Bed slope angle	30	
Overall dimensions (length x width x height)	3940*1850*1870	㎜
Net weight of machine	3200	kg

 

 

Standard Configurations :

(1) Control System : FANUC 0ITF with MANUAL GUIDE i

(2) cutting water cooling system

(3) fully enclosed shield

(4) work lights

(5) automatic lubrication system

(6) operation indicator

(7) Chuck foot switch

(8) pulse generator (electronic hand wheel MPG)

(9) Tool accessories

A group of soft claws, a group of boring cutter seat , a set of end face knives,

Outer diameter knife set , a group of two-way knife set, knife handle set of a group (8 ~ 25)

(10) movable sheds water tank

(11) 12 tools SERVO turret Taiwan Nafeng

(12) hydraulic tail stock

(13) a set of tool boxes

(14) pad

(15) hydraulic system

 

 

 

 

Machine standard tool kit :

1 . Toolbox 1 pc

2 . screwdrivers 2pcs

Allen wrench 1 set

air guns with 1 set of air pipes

Machine documents manual 1 pc

U disk 1pc

network cable 7 meters 1 piece

8 . square knife holder (seat) 4pc+Press knife inclined block 4pcs

boring knife holder (seat) 4pcs+ Reducer sleeves 4 pcs

FANUC CF card 1 piece

Extended card 1set

Chuck soft jaw 1 set.

 

 

 

No	Item	Parameter	Brand	Qt
1	Spindle (C-axis indexing)	A2-5	Taiwan Huachuang	1
2	Spindle motor servo	7.5/11KW	Japan Fanuc	1
3	Spindle motor power	7.5/11KW	Japan Fanuc	1
4	X-axis servo motor torque	8nm	Japan Fanuc	1
5	X-axis servo motor power	1KW(brake)	Japan Fanuc	1
6	Z-axis servo motor torque	12nm	Japan Fanuc	1
7	Z-axis servo motor power	1.8KW	Japan Fanuc	1
8	C-axis driver power	11KW	Japan Fanuc	1
9	C-axis motor torque	35.8NM	Japan Fanuc	1
10	Linear guide (X-axis)	30 Roller type	Taiwan HIWIN/PMI H	2
11	Linear guide (Z-axis)	30 Roller type	Taiwan HIWIN/PMI H	2
12	Screw (X-axis)	32/10	Japan THK C3 grade	1
13	Screw (Z-axis)	32/10	Japan THK C3 grade	1
14	FANUC system	OI-TF 10.04	Japan Fanuc	1
15	Rotary cylinder (hollow)	6 inch	Taiwan AUTO CHUCK	1
16	Hydraulic chuck (hollow)	6 inch	Taiwan AUTO CHUCK	1
17	Hydraulic station	LEIMAN	China-Taiwan joint venture	1
18	Hydraulic servo turret	63 center height 12T	Taiwan Nafeng	1
19	External tool holder	Φ20/25	Turret carrying	3
20	Face tool holder	16/16	Turret carrying	1
21	Tool press block	16X16	Turret carrying	8
22	Machine base	Integral casting	Homemade	1
23	Hydraulic tailstock	Morse #4	Homemade (hydraulic propulsion)	1
24	Sheet metal cover		Homemade	1
25	Internal protection		Homemade full protection	1
26	Chip conveyor	Chain plate type (with chip car)	Domestic	1

 

 

JD-250 cnc small lathe machine working capacity:

The effective processing diameter is 375 mm.
Maximum chuck processing length: 380 mm
Maximum chuck collet processing length: 430 mm

 

 

 

 

 

Types of Collet Chucks
Different types of collet chucks are suitable for different processing needs. Common types include:

1. ER Collet Chuck

Purpose: Commonly used in CNC machining centers, milling machines and drilling machines to clamp milling cutters, drills and tapping tools.

Specifications: There are many sizes, such as ER8, ER11, ER16, ER20, ER25, ER32, ER40 and ER50, with a wide clamping range.

Advantages: High precision, strong flexibility, and fast tool change.

2. 5C Collet Chuck

Purpose: Suitable for lathes and grinders, capable of clamping round, square or hexagonal workpieces.

Specifications: The standard clamping range is 1/16 inch to 1-1/8 inch.

Advantages: High precision, fast workpiece change, suitable for workpieces of various shapes.
3. R8 Collet Chuck

Purpose: Designed for milling machines, especially Bridgeport-type milling machines.

Specifications: The general clamping range is 1/8 inch to 3/4 inch.

Advantages: High rigidity and stability, suitable for heavy milling operations.

4. DA Collet Chuck (Double Angle Collet Chuck)

Purpose: Suitable for light to medium-duty machining tasks.

Advantages: Compact structure, suitable for applications with limited space.

Application of Collet Chuck
Due to its versatility and high precision, collet chucks are widely used in various types of machining equipment. Main applications include:

Lathe processing: Collet chucks are ideal for clamping slender or delicate workpieces on lathes. Its uniform clamping force ensures that the workpiece is stable during the turning process, reducing the risk of runout and deformation.

Milling machine processing: On milling machines, collet chucks are used to clamp milling cutters, end mills and drills. Precise clamping mechanism minimizes tool runout, ensuring cutting accuracy and consistency.
CNC machining center: In high-speed cutting and automated operations, sleeve chucks can quickly change tools and provide precise clamping, improving the efficiency and accuracy of mass production.
Drilling and tapping: Sleeve chucks can firmly clamp drills and taps, ensuring accurate drilling and consistent tapping, reducing tool deflection, and ensuring the accuracy of hole position and thread.
Grinding machine processing: In precision grinding, sleeve chucks can stably clamp small workpieces, helping to achieve strict tolerances and high-quality surface treatment.
Woodworking and electronics manufacturing: In the woodworking field, sleeve chucks are used to fix milling cutters, while in the electronics manufacturing industry, they are used to process small components to ensure accuracy and stability.
Advantages of sleeve chucks
High-precision clamping: The concentricity of the sleeve chuck is extremely high, and the runout accuracy can usually reach 0.005mm or better, ensuring processing accuracy, reducing processing errors and scrap rates.
Uniform clamping force: Its design can evenly distribute the clamping force, effectively preventing the workpiece or tool from deforming during the clamping process, and is particularly suitable for machining thin-walled or precision workpieces.
Quickly change tools or workpieces: The simple design of the sleeve chuck allows for faster tool or workpiece replacement, significantly reducing setup time and improving production efficiency.
Versatile clamping: It can clamp workpieces of different diameters and shapes, such as round, square, hexagonal, etc., suitable for a variety of machining tasks.
Excellent vibration resistance: Stable clamping can reduce vibration during machining, improve surface finish, extend tool life, and improve overall machining quality.
Durability and long life: Made of high-quality materials such as spring steel, it has high wear resistance and is suitable for long-term use in harsh machining environments.

How to choose a suitable sleeve chuck?
When choosing a sleeve chuck, the following factors should be considered:

Clamping range: Choose the appropriate sleeve size according to the diameter of the workpiece or tool.
Precision requirements: For high-precision machining, a sleeve chuck with low runout accuracy and small tolerance should be selected.
Processing environment: Choose a chuck with good vibration resistance according to the cutting speed, cutting force and processing type.
Replacement frequency: When you need to change tools or workpieces frequently, choose a quick-change sleeve chuck to improve work efficiency.
Material and coating: Choose a sleeve chuck made of high-quality materials and with a wear-resistant coating to extend its service life.
Conclusion

The sleeve chuck plays a vital role in precision small cnc lathe machining. With its unparalleled accuracy, stability and efficiency, it has become an ideal clamping tool for various applications such as turning, milling, drilling, tapping and grinding. Choosing the right sleeve chuck can help manufacturers improve production efficiency, improve processing quality and reduce downtime.

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