China AGC Servo Cylinder for Steel Mill

Product Description
Servo Hydraulic Cylinder
Ervo hydraulic cylinder (hereinafter caller servo cylinder) is an executive component in electro hydraulic servo system or proportional system. To put some force such as pushing, pulling, pressing and twist on some object to control its moving direction, position and deformation. To simply the structure, usually in the control system, the signal detection, anti-corrosion device, servo valve and proportional valve are installed on the cylinder to simply the structure.
The inner and outer magnetic type displacement sensor could be installed on the straight reciprocating motion servo cylinder. The Term. Pos. approach switch, pressure transmitter, pressure control, servo and proportional valve seat could be installed on all servo cylinders and the hydraulic control one-way valve, adjustable safety overflow valve and one-way choke valva can be mounted on the valve seat.
We usually use various famous sensors in home and abroad, such as MTS and SCHAEVITZ from America, BALLUFF and TR from Russia, GIVI from Italy, Mitsubishi form Janpan, etc.
There are different kinds of sersors to meet your differernt requirements: magnetic type sensor and speed sensor, LVDT displacement and liner velocity sensor, angular displacement sensor, grating ruler, pressure sensor, temperature sensor, loading sensor, approach swith, stroke switch, photoeletric seith, etc.
ETERNAL company design and manufacture hydraulic cylinders for different applications:
1.Construction machinery
2.Mining machinery
3.Hydraulic press, including Forging press, Die casting machine, Injection Molding Machine, etc.
4.Extrusion press
5.metallurgical machinery, like Rolling Mill Servo
6.Hoisting machinery, including marine jib crane,marine crane,hydraulic knuckle boom marine crane,etc.
7.Excavating machinery, used in telescopic boms, knuckle booms, fixed double taper booms,etc.
8.Petroleum drilling machinery
9.Hydraulic lifting platform
10.Marine equipment
11.Hydro power project
Design
Not only we could manufacture all kinds of heavy duty hydraulic cylinder on hydraulic press according to the drawing from customers,but also we could make a design according to customers'requirements. If you require our engineer to make a design, please advise us thefollowing 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 .

Manufacturing capability and cylinder size range
Max bore diameter: Ø1200mm
Max stroke: 12Meter
Max text pressure: 50MPa


Detailed Images
1.Cylinder tube
According to the cylinder pressure and inside diameter size, different steel tube Would be choosed.
ID ≤300mm, choose cold rolled precision seamless tube
300mm≤ID ≤500mm, choose hot rolled seamless tube
500mm≤ID ≤1000mm, choose forged tube
Steel grade : SAE1020, SAE1045, 27SiMn , S355JR, S355J2G3, St52-3, SUS304, SUS316L etc .
Inside boring and honing , roughness R0.2-R0.3
Inside chromating : if necessary ,tube inside chromating could be applied
2Piston rod
steel grade : SAE1045, 42CrMo4, SUS410 ,SUS420, SUS304, SUS316L
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.

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.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.

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 testingpressure 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.

Packing & Delivery

Our Company


Company Profile
Jiangyin Eternal Heavy Industry Co., Ltd was established in 22, Apr. 2008. Our products mainly including: hydraulic baler, hydraulic shear, hydraulic cylinder and metallurgical Equipment. We could manufacture all kinds of hydraulic baler and hydraulic shear, pressure up to 1000 tons, and our machines have been exported to many countries.
Our hydraulic cylinders are widely used in construction machinery, mining machinery, hydro power project, offshore drilling platform, steel plant equipment, marine machinery, hydraulic lifting system, metallurgical equipment, forging equipment etc. Max cylinder bore size reach 1,000 mm, max cylinder stroke reach 12 meter, max test pressure could reach 50Mpa. Our cylinder has passed through BV certification.
We could also manufacture all kinds of metal extrusion press, pipe upsetting machine, including all kinds of steel plant spare parts.
Our factory has 15,000 square meters and have heavy duty workshop with area 8,000 square meters. There is double layer crane in the work shop. The lifting height could reach 16 meter while lifting capacity could reach 75 tons.
Our company passed the ISO9001: 2015, ISO14001: 2015, OHSAS18001: 2007, BV marine certification, API certification etc. Till now, our products have been exported to nearly 50 countries and own good reputation from our customers. You are welcome to visit our company.