Introduction of production equipment

Introduction of production equipment

1.Hydraulic cold drawing bench

Hydraulic cold drawn high precision steel tubes are widely used to manufacture hydraulic cylinder barrels,while hydraulic cold drawing bench is the core equipment used to produce this kind of tubes.We have 1 set of 300 tons hydraulic cold drawing bench and full sets modules that can be used to produce tubes with OD of 325mm max,ID of 300mm max,W.T of 36mm max,and length of 13.8 meters max.

2、Skiving&roller burnishing machine

Skiving&roller burnishing machine is specially used for high precision treatment of tube surface. Our skiving&roller burnishing machine is of US version and its skiving knife is fixed hence ensure straightness of tubes. The higher hardness and better roughness of internal surface after skiving&roller burnishing can improve the using life of tubes.This SRB machine is input to provide better service for end customers.

3、Polishing machine

The polishing machine is mainly used for external surface polishing of tubes. To satisfy the end customers’ strict requirement about external surface,we do polishing to tubes and ensure the perfect external surface.Polishing not only brings better quality tubes but also

save the cost of our customers.
 

Polishing machine	Honing machine	Heat treating furnace
CNC Lathe	Straightening machine	Cutting machine

Designed manufacturing procedure

Mechanical tubings

Mechanical tubings

Mechanical tubings are widely used in engineering and auto spare parts.Based on application of hydraulic cold drawing technology and honing technology, we mainly produce medium and big size high precision seamless carbon steel and alloy steel tubes as well as rough honed tubes. We can carried out production as per customers’requirements of OD*ID,ID*W.T,OD*W.T and supply tubes with delivery conditions of +C,+LC,+SR,+A,and +N. We are also able to satisfy special requirements about out-of-roundness(ovality) of OD or ID,straightness,W.T tolerance,etc.

Size range:

OD	Wall Thickness:MM
MM	3.0	4.0	5.0	6.0	7.5	10.0	11.5	12.5	14	16.5	17.5	20.5	25
70
75
76.2
89
95
99
102
105
109
114
121
127
131
135
140
146
150
156
158
163
170
177
180
190
203
210
219
221
229
234
241
249
253
266
273
299
305
325

Standard specifications: ASTM A519, BS6323-1,BS6323-4,BS6323-6.

Material:SAE1020,SAE1026,SAE1045,SAE4130,SAE4140; CFS3,CFS4,CFS5,CFS6, CFS7,CFS8,CFS10,CFS11.etc.

Contact: Ms Alice Chen 

TEL:0086 22 26625616; 

FAX: 0086 22 26631216;

MOBILE;008615822528401;

SKYPE:honghong6085;

Hydraulic cold drawn seamless tube

Hydraulic cold drawn seamless tube

We focus on application of hydraulic cold drawing technology and is a pioneer in this industry and service with annual output of about 15000 M.Tons.Hydraulic cold dawn seamless tube is a kind of high precision seamless tube that is cold drawn from hot rolled seamless steel pipes.Through hydraulic cold drawing process and designed heat treating process,the sizes&size tolerance and mechanical properties are changed to satisfy customers’ technical requirements for application.The regular size range of hydraulic cold drawn tubes we regular produce is 65mm-325mm(OD),60mm-300mm(ID) and 4mm-41mm(W.T). Out of roundness of ID can be controlled at 0.05mm-0.15mm, the tolerance of W.T can be controlled at +/-5%,and the roughness of internal surface for un-heat-treated tubes can be 0.8um-1.2um. The max length is upto 13.8 meters.

SIZE RANGE:

ID	Wall Thickness (MM)
MM	5	6	7.5	10	12.5	15	17.5	20	22.5	25	30
60
63
63.5
65
70
75
76.2
80
85
88.9
90
95
100
101.6
107.95
114.3
120
130
140
140.3
150
160
168.3
170
180
190
200
210
209.5
215
220
228.6
230
240
250
260
270
280
290
300

Technical specifications:
Standard specifications and materials: DIN2391-2 ST52、ST52.3、ST52.4；EN10305-1 E355、C45E、34CrMo4、42CrMo4； ASTM A519 SAE1020、SAE1026、SAE1045、SAE4130、SAE4140,etc.

Mechanical properties:

Delivery condition Steel Grade	（BK）		（BK+S）			Hardness
	Tensile Strength σb N/mm²	Elongationδ5%	Tensile Strength σb N/mm²	Yield Strength σb N/mm²	Elongationδ5%
SAE1020	≥580	5	≥550	≥470	≥10	175
SAE1045/CK45/C45E	≥645	4	≥600	≥520	≥10	207
ST52/ST52.3/E355	≥640	4	≥580	≥420	≥10	190
SAE1026	≥640	5	≥600	≥520	≥14	195
27SiMn	≥800	5	≥760	≥610	≥10	230

Notes:

1. Tubes with other delivery condition like Anealed(+A / GBK), Normalized(+N / NBK),Cold drawn/Soft(BKW) can also be supplied.

2. The mechanical properties stated above is for reference only. Special technical requirements can be negotiaed.

CONTACT:

Ms Alice Chen

Tel:0086 22 26625616;

Fax:0086 22 26631216;

Wechat/Mobile:008615822528401;