Multi Stage Oil Cylinder of Unloading Lifting Platform

• Certification：CE
• Work Temperature：Normal Temperature
• Acting Way：Single Acting
• Working Method：Straight Trip
• Structure：Piston Type
• Material：Alloy Steel

=== Base Info ===

• Rod Surface Chromating：30um
• Rod Surface Hardness：HRC55-60
• Bore Size：300mm
• Rod Size：200mm
• Stroke：5000mm
• Transport Package：Wooden Box
• Specification：2000kg
• Trademark：ETERNAL
• Origin：China
• Production Capacity：1000pieces,Month

=== Description ===

Basic Info.

Rod Surface Chromating 30um Rod Surface Hardness HRC55-60 Bore Size 300mm Rod Size 200mm Stroke 5000mm Transport Package Wooden Box Specification 2000kg Trademark ETERNAL Origin China Production Capacity 1000pieces/Month

Product Description

1.Main Description

 

ETERNAL company design and manufacture heavy duty hydraulic cylinders  that covering

the following fields:

 

Ø hydraulic press cylinder

Ø construction machinery cylinder

Ø mining machinery cylinder

Ø metallurgy machinery cylinder

Ø water power project cylinder

Ø marine hydraulic cylinder

Ø servo hydraulic cylinder

 

 

2. Design 

 

Not only we could manufacture all kinds of hydraulic cylinders according to the drawing from our

customers,but also we could make a design according to customer's requirements.If you 

require our engineer to make a design,pls advise us the following specification:

 

1. Rated pressure 

2. Working pressure 

3. Test pressure 

4. Working condition and environment ,for example ,temperature ,working frequency 

5. Pulling force ,and return stroke force

6. Pulling and return speed 

7. Assembly size  

8. Seal ring requirements .For example , brand ,seal material etc .

9. Tube and piston rod raw material requirements 

10. Piston rod surface treatment requirements, for example chromating film thickness ,   

 Surface hardness etc . 

11. Painting and other spare parts requirements .

 

 

3. Manufacturing capability and cylinder size range 

 

3.1 Cylinder bore diameter :max Ø1200mm 

3.2  Cylinder length :10Meter 

3.3  Max lifting capability :50 Tons 

 

 

4.Manufacturing and inspection 

 

4.1.Cylinder tube size and choice  

 

4.1.1   According to the cylinder pressure and inside diameter size ,different steel tube Would be choosed .

 

1.  ID ≤300mm , cold rolled precision seamless tube would be choosed 

2.  300mm≤ID ≤500mm , hot rolled seamless tube would be choosed 

3.  500mm≤ID ≤1000mm, forged tube would be choosed 

 

4.1.2 Cylinder tube steel grade : SAE1020 , SAE1045 ,27SiMn , S355JR ,S355J2G3

St52-3 ,SUS304 ,SUS316L etc .  

4.1.3 Cylinder tube inside boring and honing , roughness R0.2-R0.3,

 

4.1.4 Cylinder tube inside chromating : if necessary ,tube inside chromating could be applied 

.

4.2  Piston rod  is a very important part for hydraulic cylinder .

 

4.2.1 Piston rod steel grade : SAE1045, 42CrMo4, SUS410 ,SUS420, SUS304, SUS316L 

 

4.2.2 Piston rod chromating and surface hardness .

        Eternal company ensure that every piece piston rod would be surface hardened before chromating ,

surface hardness is HRC55~60 , Chromating film thickness is 0.03~0.04mm if there is no other specific 

requirements .

 

4.3 Seal ring and O ring 

 

According to the customers' requirements and working condition , eternal company would choose suitable 

seal ring kit , seal ring brand include :Parker , Merkel , NOK , Guangzhou Rubber institute , Taiwan brand etc . Eternal company would supply suitable seal solution for their customer so that hydraulic cylinder has more

 lifetime , easy maintenance and simple repairing .

 

4.4 Tube and flange welding 

 

 The welding on cylinder tube and flange would be Ultrasonic tested every time , the welding seam would be 

cleaned before machining .Eternal company ensure that every welding seam has no any leak during lifetime 

 

4.5 Assembly and pressure test

 

Before hydraulic cylinder is assemblied , every spare parts would be measured and cleaned .After hydraulic

 cylinder is assemblied , pressure test would be carried out one By one , eternal company ensure that testing

 pressure is higher 30%-50% than working pressure  , and pressure holding time 30~60 minutes is necessary . Every piece hydraulic cylinder must be tested completely without any leak .

 

 4.6 Painting and storage .

 

After hydraulic cylinder pass through pressure test , painting is necessary .

  

 

Processing

 

Jiangyin Eternal Heavy Industry Co.Ltd was established in 2008.Our products mainly include hydraulic baling machine , scrap shearing machine ,and all kinds of heavy duty hydraulic cylinders etc.
We specialize on design and manufacture heavy duty hydraulic cylinders , scrap baler machine and shearing machine .Our hydraulic cylinders are widely used in different industry fields including:construction machinery,mining machinery, hydro~power project, offshore drilling platform, steel plant equipment , marine machinery,hydraulic lifting system etc. We have gained ten patents for our hydraulic cylinders.
In 2008, our servo cylinders with cylinder bore 950mm for steel mill were exported to Poland.In 2009, our hydraulic cylinders with stroke 10 meters were exported to Pakistan for water conservancy project. In 2016,cyliner with weight 90tons has been exported to Russian sucessfully .
Our hydraulic cylinder range: Bore:1000mm, Stroke:12 meter, testing pressure:50MPa We could make all kinds of hydraulic baler , hydraulic shear , scrap steel shredder machine , etc rated from 100 tons -1250tons . We could make all kinds of excavator spare parts , drill rig spare parts , steel mill spare parts according to OEM drawing , including all kinds of shaft and drill tools . We have heavy duty workshop with area 10000 square meters. There is doublelayer crane in the workshop.The lifting height could reach to 16 meter while lifting capacity could reach to 75 tons. Our machining equipment including Horizontal Lathe (11 meter ), Vertical CNC Machining Center, Display boring and milling machine, Frame type CNC machining center,CNC Lathe, Deep hole boring machine (13 meter), honing machine,etc. Testing equipment including Intelligent Pressure Test Machine, UT Detector, MT Detector, Chrome Thickness Meter, etc.
Eternal company would devote to supply first rate equipment and provide total solutionsto our customer. In the past ten years, we devoted ourself to continuous market expanding and the researchand development of new products. Till now, our products have been export to nearly 50 countries and own good reputation from our customers .
You are welcome to visit our company !

FAQ
1. who are we?
We are based in Jiangsu, China, start from 2008,sell to Domestic Market(36.00%),Eastern Europe(21.00%),Southeast Asia(16.00%),South America(12.00%),North America(9.00%),Northern Europe(4.00%),South Asia(2.00%). There are total about 51-100 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Hydraulic Cylinder,Hydraulic Baler,Hydraulic Shear,Drill Toll,Rollers

4. why should you buy from us not from other suppliers?
We have rich experience on hydraulic baling machine, scrap shearing machine and hydraulic cylinder ,our hydraulic press has passedh through CE certification .

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,Western Union;
Language Spoken:English,Chinese,Portuguese,Russian