Qingzhou Longyue Hydraulic Machinery Co.,Ltd

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+86-536-3295150

+86 13280195875 13406669513

Welded Honed Hydraulic Cylinder Barrel

Welded Honed Hydraulic Cylinder Barrel

Professional manufacturer of welded honed hydraulic cylinder barrel, founded in 2004, major in honed tube, hydraulic tube, chrome rod, chrome bar, chrome shaft, at present we are biggest manufacturer and wholesaler in north of China. Welded honed hydraulic cylinder barrel Welded honed hydraulic...

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Professional manufacturer of welded honed hydraulic cylinder barrel, founded in 2004, major in honed tube, hydraulic tube, chrome rod, chrome bar, chrome shaft, at present we are biggest manufacturer and wholesaler in north of China. 


Welded honed hydraulic cylinder barrel

Welded honed hydraulic cylinder barrel was made by cold-drawn tube and flange, oil port etc. which was precision processed by welded, boring, reaming, skiving or honing. When get through those process barrel can be easy to make into hydraulic cylinder and can be ensure seal ability, reduce abrasion, move smoothly.

Barrel can be produced according to the demands of customers, tolerance as H8, H9. 

According to the pressure requirement and diameter size, different material would be chosen.

Material: DIN2391 standard ST52, EN10305 standard E355, 16Mn, ASTM A106B, C20/20#, CK45

Standard: GB/T8713-88, GB/T3639-2009, DIN2391, EN10305 ASTM A519, DIN2391, EN10204-1

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Parameters Description

ID size

ID Tolerance


WT Tolerance

H7

H8

H9

H10

H11

30

+0.0210

+0.0330

+0.0520

+0.0840

+0.1300

±5%

>30-50

+0.0250

+0.0390

+0.0620

+0.1000

+0.1600

>50-80

+0.0300

+0.0460

+0.0740

+0.1200

+0.1900

>80-120

+0.0350

+0.0540

+0.0870

+0.1400

+0.2200

>120-180

+0.0400

+0.0630

+0.1000

+0.1600

+0.2500

>180-250

+0.0460

+0.072

+0.1150

+0.1850

+0.2900

>250-315

+0.0520

+0.0810

+0.1300

+0.2100

+0.3200

>315-800

+0.0570

+0.0890

+0.1400

+0.2300

+0.3600


Processing Form

I. D

Length

Straightness

I. D Tolerance

I. D Roughness

Cold-rolled

30-100

≤ 12M

0.3-1.0/1000

H8-H10

0.4-1.6

Cold-drawn

30-250

≤ 12M

0.3-1.0/1000

H9-H11

0.8-1.6

Hone

40-500

≤ 12M

0.2-0.3/1000

H8-H9

0.4-0.8

SRB

40-400

≤ 7M

0.2-0.3/1000

H8

0.1-0.4


Packing and Delivery 

1. Spray by antirust oil.  

2. Plastics cap on both ends of tube. 

3. Steel belt bunded.

4. (Options) Woven tarpaulin covered overall of bundled tubes. 

6. Lifting belts on the middle of bundled bars. 

7. (Options) Wooden box packed.



Why Choice Us 

1. Professional, rich experience, reliable.

2. One-stop solution for honed tube, chrome rod.

3. Full range of size and material, ready stock goods with fast delivery

4. Customizable, non-standard sizes available

5. Small quantity acceptable

6. Refund or replace if any quality issue.


About Us 

Qingzhou Longyue Hydralic Machinery Co., Ltd, Established in 2004, reowned firm engrossed in manufacturing honed tube, chrome rod over 14years. ISO9001 certificated.

Annual output 12 thousand tons, at present we are the biggest manufacturer in North China. 

Rich experience in production and export, prefect products & services gained recognition of clients from 20 countries & area. 

We sincerely hope there would be a chance for us to start business and build long term relationships may from an inquiry soon.


Products range as following:

Honed tube

Finished barrel for hydraulic cylinder

Ready to honed tube.

Cold drawn tube.

Hard chromed rod, bar, shaft.

Induction hardened rod, bar, shaft

Finished piston rod for hydraulic cylinder


Main market as following.

Domestic market

Middle East

South Eastern Asia

North Africa

South America


FAQ 

Q1: Are you a manufacture or a trade company?

A: Manufacture, we are one of leading manufacturer of honed tube, chrome rod in China with 14 years' experience and technology accumulation. With strong technical team we could solve any annoyance of you.

Q2: Do you have quality control system?

A: Yes, quality management system introduced as ISO9001.

Q3: What about the quality feedback of your products?

A: We gained recognition of 160+ customers in 20 countries and areas and established long-term business relationships with us.

Q4: What is the delivery time?

A: Within 20-45 days for bulk production, which is depend on quantity.

Q5: What is your main payment term?

A: T/T, L/C, D/A, D/P either is available.


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