With advanced equipment and superb craftsmanship, we focus on the development and production of Honed Tube For Hydraulic Cylinder, Hard Chrome Plated Bar Threaded Hydraulic Piston Rod, Quenched And Tempered Chrome Bars, and strive to meet the different needs of users through continuous practice and innovation. To significantly increase our service quality, our corporation imports a large number of overseas advanced devices. We has obtained high-quality and outstanding reputation.

Hollow round bars are known as chrome plate tubes, they are made of cold drawn seamless tubes or hollowed bars, by grinding and precision polishing on the outside diameter and then chrome plated to a certain thickness on the OD. So they also called chrome plated OD tube.

ExternalDiameter Tolerance:Our chrome plated bars are supplied with tolerancef7, f8, f9on customers’ request.
Hard Chrome Plated Thickness:Min. 20Microns (0.0008″), other chrome plated thickness of hydraulic cylinder rod is on customers’ requests. The chrome plated round bar should pass the salt spray tested at least 48 hours.
Supply Length:Our factory produce chrome plated rod with random length or fixed length up to 16 meters.

Production process

1. Inspection of raw material

2. Acid pickling and cold drawing of tubes

3. Rough and fine turning of outer diameter

4. Grinding

5. Polishing

6. Chrome plating

7. Polishing

8. Inspection and packaging

Our Advantages

a. Extensive production experience: We are specialized in cylinder, piston rod and cylinder tubes with an experience of more than 15 years.

b. Complete production facilities: We have 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 big steel factory, such as TPCO, BAO STEEL, YE STEEL and those 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: 50 days for one container, if our stock can meet your requirements, we can deliver within ten days.

f. Safe packing: Anti-rusty oil is painted on the surface of tubes before packing, plastic caps on two ends to protect inside surface. Finally be packed with seaworthy package or in wooden case.

g. Quick reply: We will give you response within 12 hours.

FAQ

1. Q: Are you a manufacturer, trading company or a third party?

A: We are a manufacturer, and we have builded up our company since 2006.

2. Q: How can I get to your factory?

A: Our factory is not far away from Shanghai Airport, we can pick you up in the airport if you need.

3. Q: What payment terms do youaccept?

A: T/Tin advance.

4. Q: What is the delivery time?

A: In general, we delivery about 40 days for one container. If our stock meets your requirements, we can delivery within ten days. However, the lead time will vary based on different requirements and materials.

5. Q: Can your products be customized?

A: Yes, if you require special sizes or requirements we don’t have, we can find raw material for you, but the lead time will be longer.

6. Q: How long is the production cycle?

A: Usually 30-50 days.

Our customers have a wider range of processing choices for transportation mode.

By Express (FedEx,UPS,DHL,TNT,EMS,etc...)

---Advantage:Fast (takesabout7-10 day sin the delivery),door to door.

---Disadvantage:Alittleexpensive.

By Air Transportation

---Advantage:Fast (takes about 8-12 days),a little cheaper than Express.

---Disadvantage:You need to take the goods from the airport by yourself.

By Sea (Ocean) Transportation

---Advantage:Much cheaper than Expressor Air transportation.

--- Disadvantage:Slow and you need to take the goods from your destination port by yourself.

We provide high-quality Astma312 Tp321h/Uns32109/1.4878/X12crniti18-9 Seamless Stainless Steel Round Hollow Bar and a full range of convenient services. In line with the principle of customer first, we constantly pursue perfection, improve the technical content and quality of products, and constantly improve ourselves while meeting customers. Never ever disappearing major functions within a quick time, it's a have to for you of fantastic good quality.

Hot Tags: hollow round bars, China hollow round bars manufacturers, suppliers, factory, dimensional accuracy piston rods, Hydraulic Cylinder Rod, honed close tolerance tubes, honed bent tubes, shared cold drawing machine, hydraulic cylinder advantage