Company Introduction

Shijiazhuang Zhongjie Roller Manufacturing Co., Ltd. is located in Zhizhao Industrial zone, Jiumen Township, Gaocheng District, Hebei Province. It is a high-tech enterprise in Gaocheng District, Shijiazhuang City. It is a company specializing in roller design, development, production, sales and after-sales service of high-frequency welded pipe, cold roll forming section steel, stainless steel welded pipe and titanium pipe,etc. At present, our products have spread all over the country and been exported to Europe, Africa, Southeast Asia, America and other countries and regions.

Our company, formerly known as Shijiazhuang metallurgical roller factory, has a long history. Since 1979, we has started to produce welded pipe rollers, specializing in the production of precision roller dies for diameter range φ8～φ426 various specifications of round pipes, square pipes, special-shaped pipes and cold-formed section steel. The measurement and detection meet the national class threel measurement standards. By means of non-destructive testing, it has a variety of testing instruments, such as bench hardness tester, HLV internal hardness tester, metallographic microscope, ultrasonic flaw detector, digital flaw detector, etc.

We have 5 mold design and development personnel, including 2 senior engineers, 2000 square meters of production area, 50 sets of professional production machine tools and 20 sets of heat treatment equipments, 10 professional after-sales service personnel. Based on the principle of "quality first, service first, reputation first, customer first", our company strives to make our own products and provide customers with the best quality products and services.

Following the development pulse of the world's welded pipe industry, together with the welded pipe equipment company,we have jointly developed and designed roller for the domestic advanced high-frequency straight seam welded pipe technology, direct square forming technology, single and double radius forming technology, round to square forming technology, cage roll forming technology, and FFX forming technology roll.

Our company also design ZTF forming method and direct square forming method with rotary vertical roller jointly with welded pipe equipment company. The multi-functional cold roll forming series welded pipe mill can not only produce round pipe and square rectangular pipe, but also produce cold formed section steel, which truly realizes "one machine with multi-purpose".

In 2014, our company and the welded pipe equipment company innovated and developed a new direct square forming technology, which realized the roller automatic adjustment of the whole line when changing pipe specifications, greatly reduced the labor intensity of the workers and improved the working efficiency.

Our company strictly implements the ISO9000-2001 quality system documents, pays attention to the production whole process control , and ensures that the quality and delivery period meet the requirements of customers; the professional commissioning engineers provide reliable terminal services for users.

Advanced technology, strong processing strength and perfect after-sales service system have created the excellent quality of "Zhongjie" roller. Our company has always provide a full range of technical services in the roller design, adjustment, processing and repairment.

Our company welcomes friends from domestic and abroad to visit our company for guidance and business negotiation. Both sides cooperate in the developing process of our country's cold-formed section steel and welded pipe products towards high precision, high strength, multi variety and multi-purpose, and jointly develop the grand plan.

Main products

1.Rollers for high frequency welded pipe mill

Round pipe：Φ20mm～Φ720mm    wall thickness：0.3mm—22mm

Square pipe：10mm×10mm～600mm×600mm  wall thickness：0.3mm～22mm

2.Rollers for open cold roll forming section steel

LW350mm×4mm～LW1500mm×20mm

3.Roller for multi-functional welded pipe mill

100mm×100mm～600mm×600mm and special profiles according to customer’s requirement

4.Rollers for customized high strength steelproducts

800Mpa～1000Mpa

5.Rollers for Various kinds of profiles

Like “8” type profile，similar "8" type, "P" type, butterfly type, door frame pipe, etc

6.Rollers for small size precised pipes

7.Cutting blades for slitting line

Material description and national standard chemical composition

1. Roller Material brief Introduction

The roller material of our company strictly complies with the national standard. The common roller material is GCr15, 9Cr2Mo, Cr12, Cr12MoV, Cr12Mo1V1, high chromium alloy; the extrusion roller material is H13, 3Cr2W8V, high chromium alloy molybdenum vanadium.

2. Raw material used by our company

National standard chemical composition table GB/TF  1299～2000