用途与特征/Applications and features

CD250系列双作用单杆活塞杆差动式液压缸，是液压系统中作往复直线运动的执行机构.具有结构简单、工作可靠、装拆方便、易于维修、可带缓冲装置及连接方式多样等特点.广泛应用于工程、建筑、锻压、机床、农业、冶金、矿山、石化、船舶、水利机械及其他重型机械等行业。

The CD250 series double acting single piston rod difference cylinders are the actuator which reciprocates linearly in hydraulic system. Its features are simple in structure, reliable in operation, convenient in assemble and disassemble, easy in maintenance, ect.. In addition, there are several varieties of connecting mode and can be provided with the cushioning devices. They are widely used in fields of engineering, architectural, smithing and punch machine, agricultural, metallurgical, mining, oil chemistry shipping, water system machinery and other heavy machinery.

技术参数/Technical Parameter:

工作压力：25MPa/Working pressure:25MPa

工作介质：矿物油/ Workingmedium: mineral hydraulic oil

工作温度：-10℃～+80℃/ Working temperature: -10℃～+80℃

运动速度：<0.5m/s, /Moving speed: <0.5m/s

注：以上参数如有特殊要求，请另行注明/If you have any especial requirement to the above data, please note it.

型号说明/model mode

CD  25  *  *  *  *  10  *  *  *  *  *  *

① ②③④⑤⑥⑦⑧⑨⑩�7�6�7�7�7�8

① 双作用单活塞杆式差动液压缸/Double actions single piston rod difference cylinders

②额定压力：25MPa/Standard pressure:25MPa

③安装方式 见表1/Mounting styles: See table 1

④ 缸径/杆径(mm)/bore /rod (mm)

⑤ 行程(mm)/Stroke (mm)

⑥ 缸筒与前、后端盖连接：A-缸筒两端法兰连接；B-前盖法兰连接、后盖焊接

Connecting mode of before and back covers: A-Connecting with flange both sides;

B-Head cover Connecting with flange and back cover connecting by jointing

⑦ 10系列：10 ～19 系列安装尺寸相同

10series: Mounting dimensions of 10-19 series are same

⑧ 进出油口螺纹：01-英制管螺纹；02-公制螺纹

inlet＆outlet ports thread: 01- Cannular thread  02-Standard thread

⑨ 活塞杆材质：C-45 钢，镀硬铬；H＊-500＃表面淬火，镀硬铬；L-1Cr17Ni2,镀硬铬

Piston rod material: C – 45，plating hard chromium; H＊-500＃Surface quenched and plating hard chromium; L-1Cr17Ni2, plating hard chromium

⑩ 活塞杆端部螺纹：G- 适用于GA、GAK及SA型耳环；A- 适用于GAS耳环

Piston rod end thread: G-Fitting to GA,GAK and SA eye rings; A-Fitting to GAS eye rings

�7�6缓冲：U- 端部无缓冲 D- 两端部有缓冲

Cushioning: U- Non– cushioning; D-With cushioning both ends

�7�7工作介质：M- 矿物油/Workingmedium: M-Mineral hydraulic oil

�7�8活塞及活塞杆密封形式：A-V 形密封圈组

Piston and piston rod sealing mode: A-V series sealing rings group

                                                                                                                                         表 1/Table 1