CD/CG250，CD/CG350 series heavy duty hydraulic cylinder系列重载液压缸
塞姆克油缸、系统分厂主要从事各种液压油缸，液压系统的设计，制造及技术咨询与服务等项目，并致力于各种非标液压油缸及高性能油缸的研发。    
目前公司聘请了多名有三十几年工作经验的知名专家为本公司的工程师及技术顾问。我们生产的液压油缸有四拉杆型，车辆用液压缸，冶金用液压缸，大通径重型液压缸，以及各种非标液压缸。

Seric’s cylinder and system branch plant is mainly engaged in a variety of hydraulic cylinders, hydraulic system design, manufacturing and technical consultation and service projects, and committed to a variety of non-standard hydraulic cylinders and high-performance cylinder research and development. At present, the company has hired a number of well-known experts with more than 30 years of working experience for the company's engineers and technical consultants. Now we produce a variety of standard hydraulic cylinder, vehicle hydraulic cylinder, metallurgical hydraulic cylinder, large diameter heavy hydraulic cylinder, as well as a variety of non-standard hydraulic cylinders.
本系列液压缸是由14种缸径，分别按四种速比组成28规格的单活塞双作用差动油缸。另缸头法兰式、中间耳轴安装式和底座安装式三种还可做成双活塞杆双作用等速油缸，再加上无端部缓冲两端部有缓冲与上述28种规格组成384个品种。特别适用于环境恶劣、重载的工作状态下，广泛应用于钢铁、铸造、锻炼及机械制造等工业部门.
The hydraulic cylinder of this series is a single-piston double-acting differential oil cylinder, which is made up of 14 cylinder diameters and is composed of four speed ratios. In addition, that flange type, the middle trunnion mount type and the base mount type of the other cylinder head can be made into double-piston-piston rod double-acting constant-speed oil cylinder, and the two end parts of the end part of the endless part are provided with the buffer and the above-mentioned 28 specifications to form 384 varieties. is especially suitable for industrial sectors such as steel, casting, exercise and mechanical manufacturing,
 技术性能与特点 

工作压力，Mpa	CD/CG250系列：25，CD/CG350系列：35
适用介质	矿物油、磷酸酯和水-乙二醇
工作温度，℃	-30~+100
介质粘度，cSt	2.8~380
运行速度，m/s	0.5(采用特殊密封可达15m/s)
密封	动密封：A型采用V型密封圈组，适用于高速高压，T型采用摩擦系数小滑动组合密封，适用于低速低压。 静密封：采用国产O型圈
缸头与缸筒连接型式、排气阀	A型：螺纹、法兰连接：B型： 缸底焊接结构，杠头螺纹连接。端部均有螺塞的单向阀
油口连接螺纹	所有缸径的油口：GB公制细牙螺纹，也可用英国管螺纹标准BSP惠氏纹，即我国圆柱管螺纹G
安装型式	有A、B、C、D、E、F型
活塞杆材料	高抗拉强度钢和不锈钢X22CrNi17，表面均渡硬铬