Tel: +86-187 6566 3008
E-mail: patrick@longyuehydraulic.com

Contact

Qingzhou Longyue Hydraulic Machinery Co.Ltd

Add: No.2878, Haidai North Road, Economic Development Zones, Qingzhou, Shandong Province, China
Tel/Fax: +86-536-3295150
Mobile: +86-187 6566 3008
E-mail: longyueyeya@qq.com; patrick@longyuehydraulic.com
Web: www.longyuehydraulic.com; www.leonhydraulic.com
alibaba site: 
https://qzlongyue.en.alibaba.com 


Hydraulic Cylinder For Petroleum Machine

Hydraulic Cylinder For Petroleum Machine

As one of the professional hydraulic cylinder for petroleum machine suppliers in China, it is waiting for you to wholesale hydraulic cylinder for petroleum machine at low price form our factory. Hydraulic Cylinder for Petroleum Machine Product Processing and Inspection 1.Cylinder Tube According...

Products Specification:

As one of the professional hydraulic cylinder for petroleum machine suppliers in China, it is waiting for you to wholesale hydraulic cylinder for petroleum machine at low price form our factory.

Hydraulic Cylinder for Petroleum Machine

图片36.png




Product Processing and Inspection




1.Cylinder Tube

According to the work pressure,work temperature,work situation and other special requirements, different cylinder tube will be choosed.

1.1 Cylinder Tube:cold drawn precision seamless steel tube,hot rolled seamless steel tube, honed tube.

1.2 Tube Material:SAE1020(20#) ,SAE1045(45#) ,16Mn(ST52),27SiMn,etc.

1.3 Surface Roughness: R0.16-0.32μm

1.4 Inside Chroming: If necessary,inside tube will be chromated.



2.Piston Rod

2.1 Rod Material: 35#,SAE1045(45#),35CrMo,42CrMo4,etc.

2.1 Technical Treatment: Quenched and tempered.1.5-1mm,or 1.03mm per millimeter.



3.Seal Kits

According to customers' requirements and work condition, we will choose suitable seal kits, including: Hallite, NOK, SKF, Parker, Merker,Trelleborg, China made,Taiwan made.We will supply you suitable seal kits to ensure hydraulic cylinders a long lifetime,easy maintenance and simple repairing.



4.Inspection and Testing

4.1 We have professional quality control department,every step from raw material to finished product is in the same factory,each procedure will be tested by professional inspector.

4.2 Before hydraulic cylinder is assembled ,every spare parts would be measured and cleaned.After hydraulic cylinder is assembled ,pressure test would be carried out one by one.We ensure the testing pressure is 30%-50% higher than rated pressure in almost one hour's test.Each hydraulic cylinder must be tested without any leakage.



Raw Materials


图片37.png




Finished Products


图片30.png




Packing and Shipping


图片31.png




About Us