• Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery

Burnishing tube /seamless tube/45# materials Hydraulic cylinders tube for hydraulic machinery

No.1
Burnishing is a cold working process in which plastic deformation occurs by applying a pressure on a ball or roller of metal surface ;
$1200.00
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery
  • Burnishing tube /seamless tube/45# materials hydraulic cylinders tube for hydraulic machinery

SPECIFICATION

Seamless steel tube /burnishing tube of 45# steel tube for hydraulic machinery 

Basic information 
Model NO. Powersen1 Structure hydraulic cylinder tube type
Material seamless steel  tube  Raw Material Carbon steel 
Material type  Seamless Surface Treatment Bk, Nbk, Bks, etc
MOQ 1tons Warranty 12month
Production Capacity 24000tons/years HS Code 7304319000
Section Shape Round Usage Hydraulic/Automobile Pipe, Machinery Industry, Mining, Special Purpose
Bore Roughness Ra0.25um Max Wall thickness  3-50mm
Od Treatment Machining+Polishing ID Tolerance H8, H9
Bore Treatment Honing, Skiving&Roller Burnishing Transport Package Standard Export Packing or Customized Packing
Specification 40mm*30mm-580mm*500mm Trademark Sdpowersen

Production description 
Burnishing is a cold working process designed for  improving surface finish ,imporving size ,increacing hardness and imporving fatigue life .So there you four primary benefits of role of bunishing ;
What burnishing does do it ?It takes a machined surface see but a peak to vally of machined surface and it pushed those peaks into the valleys by stressing the material beyond its yield ;

  Burnishing tube OD:45mm - 180 mm 
Burnishing tube ID:35mm - 160 mm 
Burnishing tube materials: 20# 45#(CK45) 16Mn (ST52) 25Mn 27SiMn 
Burnishing tube thickness : 5mm - 22 mm 
Burnishing Standard: GB/T 87 13-88  GB/T 3639 - 2000   TIN 2391 EN 10305 
Cylinder tube series 
Skived and rolled burnished tube  series Honed tube series 

Product parameters 
Mechanical properties 
Steel grade  tensile strength (бb N/mm2) Yield strength (бs N/mm2) Elongation (δ%) Hardness (HB)
20#

≥520

 ≥470

 ≥12

175
45#(CK45)

 ≥600

 ≥520

 ≥12

 207

16Mn(ST52)

 ≥600

 ≥520

 ≥12

190
25Mn

 ≥600

 ≥510

 ≥15

195
27SiMn

 ≥800

 ≥720

 ≥10

230
Product Description 
Processing form  Cylinder ID (mm) length (m) Straingtness (mm/m) Tolerance on ID  Roughness (µ/m)
Cold drawn  30-250 

≤13m

0.2-0.5 H9-H11 0.8-1.6
Precision rolling  40-800

≤13m

0.2-0.3 H7-H9 0.2-0.4
Honing  40-800

≤7m

0.2-0.3 H7-H9 0.4-0.8
Burnished  40-400

≤7m

0.2-0.3 H8 ≤0.4
Dimension Tolerence 
Size of ID (mm)  ID Tolerance  Tolerance of wall thickness
H7 H8 H9 H10 H11
30 +0.021
0
+0.033
0
+0.052
0
+0.084
0
+0.130
0
±5%
>30-50 +0.025
0
+0.039
0
+0.062
0
+0.100
0
+0.160
0
50-80 +0.030
0
+0.046
0
+0.074
0
+0.120
0
+0.190
0
80-120 +0.035
0
+0.054
0
+0.087
0
+0.140
0
+0.220
0
120-180 +0.040
0
+0.063
0
+0.100
0
+0.160
0
+0.250
0
180-250 +0.046
0
+0.072
0
+0.115
0
+0.185
0
+0.290
0
250-315 +0.052
0
+0.081
0
+0.130
0
+0.210
0
+0.320
0
315-400 +0.057
0
+0.089
0
+0.140
0
+0.230
0
+0.360
0

Detailed  Photos 





Company profile 

ShanDong Powersen group consists of six branch factories including Shandong Powersen Machinery Co., Ltd. & Qingzhou Longyue Hydraulic Machinery Co., Ltd. etc.  As a professional manufacturer with 20 years industry experience, Powersen Group produce & export  tube parts like cold drawn tube, precision rolled tube, honing tube, skived and rolled burnished tube, etc. Shaft parts like chrome plated rod, precision slender shaft, guide pillar, piston rod, etc.  Hydraulic components like oil cylinder assembly, air cylinder assembly, oil cylinder block, air cylinder block, priority valve, diverter valve, gear pump, multi-way valve, etc. Minor lifting equipment like small gantry crane, balancing crane, folding arm crane, jib crane. Mini-loader, mini-excavator, tractor series products. Products are well known at home and abroad, since 2013 we have exported to more than 50 countries & regions around the world.
Products are widely used in field of hydraulic machinery, construction machinery, petroleum machinery, agricultural machinery, filling machinery, mining machinery, industrial equipment, transportation and marine work platform. The company focuses on product development, innovation & upgrading, professional team and QC/QA system ensure the high-class customized services and solutions to our customers.
Powersen machinery, Better technology, Better life!

Production Department 


Products flow Chart 

Quality Warranty 



Customer cooperation 





High quality guarantee - Seamless steel tube /burnishing tube of 45# steel tube for hydraulic machinery 
1.7*24 service
2.Competitive price
3.Professional technical team
4.Perfect after-sales service system
5.Can make all kinds of materials and specifications tube as customer require 

6.Strong tube production capacity to ensure fast delivery
7.Guarantee Quality. Every process must be inspected, all products need be tested before leaving the factory
Surface Roughness Test 

Ultrasonic Flaw Detector Test 
Chrome Thickness Test 
Leeb Hardness Test 
Coordinate Measuring Test 
Inner diameter Test
Out Diameter Test 
Length Test
Straightness Test 
Others complete Test  etc.


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