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1.Brief Introduction to CK20 Chrome Plated Honed Tube
Chrome plated honed tubes are often used for telescopic cylinders. The telescopic cylinder is a special design of a hydraulic cylinder or pneumatic cylinder which provide an exceptionally long output travel from a very compact retracted length. Typically the collapsed length of a telescopic cylinder is 20 to 40% of the fully extended length depending on the number of stages. Some pneumatic telescoping units are manufactured with retracted lengths of under 15% of overall extended unit length. This feature is very attractive to machine design engineers when a conventional single stage rod style actuator will not fit in an application to produce the required output stroke.
Chrome plated honed tubes are classified into two types:
Type 1: Inside surface honed and chrome plated tube
Type 2: Inside surface honed and outside surface chrome plated tube.
Steel Grade according to different standards:
| China steel grades: GB standard | 20# Steel |
| Germany steel grades: DIN standard | CK20 |
| Japanese steel grades: JIS standard | S20C |
| American steel grades: AISI Standard | 1020 |
2.Product Specifications of CK20 Hard Chrome Plated Honed Tube
| Grade | CK20, S20C, 1020, 20# |
| Inside diameter | from 40 to 300mm |
| Max length | 16m |
| Straightness | 0.5 /1000 |
| Tolerance EXT | DIN2391, EN10305, GB/T 1619 |
| Tolerance INT | ISO H8, ISO H9 |
| Roughness(Ra) | 0.2 to 0.4 µ |
| Chrome thickness | 20 To 50 Micron |
| Type | Cold drawing, Normalizing treatment, Honing or skiving, Chrome plated |
| Length | Unfixed length or fixed length |
| Package | Bundle with steel strip and knitting strip, or wooden case |
| Conservation | Anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends |
| Impact test | -20°C, 27 J (only for special requirement) |
| Inside diameter(mm) | Tolerance(mm) | |||
| H7 | H8 | H9 | H10 | |
| ≦30 | +0.021/0 | +0.033/0 | +0.052/0 | +0.084/0 |
| 30-≦50 | +0.025/0 | +0.039/0 | +0.062/0 | +0.100/0 |
| 50-≦80 | +0.030/0 | +0.046/0 | +0.074/0 | +0.120/0 |
| 80-≦120 | +0.035/0 | +0.054/0 | +0.087/0 | +0.140/0 |
| 120-≦180 | +0.040/0 | +0.063/0 | +0.100/0 | +0.160/0 |
| 180-≦250 | +0.046/0 | +0.072/0 | +0.115/0 | +0.185/0 |
| 250-≦315 | +0.052/0 | +0.081/0 | +0.130/0 | +0.210/0 |
| 315-≦700 | +0.057/0 | +0.089/0 | +0.140/0 | +0.230/0 |
3. Our Advantages in Manufacturing CK20 Chrome Plated Steel Tube
a. Extensive production experience: we are specialized in cylinder, piston rod and cylinder barrel with an experience of 10 years.
b. Complete production facilities: owning precision centerless grinding machine, straightening machine, fine polishing machine, precision lathe, milling and drilling machine, roller press and other advanced equipments. Our technicians will do regular scheduled maintenance on these machines to guarantee them work well.
c. High quality raw material: we mainly choose raw material from steel manufacturers such as TPCO, BAO STEEL, SHA STEEL, which are best and largest raw material manufacturer in China.
d. Strict Physical/Chemical testing procedures: meeting the requirements of the product design and process, providing reliable testing data.
e. Short Delivery time: If one container 15-20 days. We also stock some standard-sized tubes and rods, if you need 3-5 pcs, we can delivery soon.
f. Safe packing: anti-rust oil be spread on tubes and rods before shipping, plastic caps on tube ends to protect inside surface, each rod be protected with cardboard tube. Finally be packed with seaworthy package or in wooden case.
g. Best after-sale service: Over 60% products are sold to the Southeast Asia, Middle East and Europe, and all products are trusted by domestic and foreign customers.
4. Main Equipments to Manufacture CK20 Telescopic Cylinder Barrel
5. Testing Devices of CK20 Chrome Plated Cylinder Barrel
6. Packages of Chrome Plated Steel Tubes
7. FAQ
Q1:Can your products be customized?
We are specialized in cylinder, piston rod and cylinder barrel with an experience of about 10 years. We have a strong designing team, so any conventional product can be customized.
Q2:What about the after-sale services?
We provide 12 months quality warranty after dispatch. We also offer long-time technical advisory services.
Q3.What about the transpotation?
We can take any type of transpotation according to the customer's demand.
Please feel free to send us your detailed requirements, you would be satisfied with our service.
Contact Below:
Wuxi Longzhichen Machinery Co., Ltd
Att:Mr.Min
Phone:+86-18921387058
Tel:+86-510-83050629
Fax:+86-510-83050596
Email:sales@wxlongchen.com
Add: Yangshan Supporting Area, Huishan District, Wuxi City, Jiangsu Province
E-mail: 