Zhangjiagang ZhongYue Metallurgy Equipment Technology Co.,Ltd
| Wall Thickness | 0.4-1.5 mm |
| Supply Ability | 150 Sets per Year |
| Roll Shaft Material | 42CrMo quenched + tempered + HF hardened |
| Tube OD Range | φ10-26 mm |
| Payment Terms | T/T, L/C |
| Roll Change | Side-pull quick change |
| Delivery Time | 60-120 working days |
| Line Speed | up to 90 m/min |
| Overload Protection | Horizontal forming stands |
| Packaging Details | Seaworthy wooden case and container loading, rolls wrapped in anti-rust film |
| Certification | CE, ISO 9001:2015 |
| Model Number | ZY20 |
| Place of Origin | Zhangjiagang, Jiangsu, China |
| Brand Name | ZHONG YUE |
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Product Specification
| Wall Thickness | 0.4-1.5 mm | Supply Ability | 150 Sets per Year |
| Roll Shaft Material | 42CrMo quenched + tempered + HF hardened | Tube OD Range | φ10-26 mm |
| Payment Terms | T/T, L/C | Roll Change | Side-pull quick change |
| Delivery Time | 60-120 working days | Line Speed | up to 90 m/min |
| Overload Protection | Horizontal forming stands | Packaging Details | Seaworthy wooden case and container loading, rolls wrapped in anti-rust film |
| Certification | CE, ISO 9001:2015 | Model Number | ZY20 |
| Place of Origin | Zhangjiagang, Jiangsu, China | Brand Name | ZHONG YUE |
| High Light | 42CrMo Hardened Roll Shaft ，Durable Steel Tube Mill ，Long Life Pipe Machine | ||
Roll and shaft wear is the hidden cost of tube production: as shafts wear, the pass opens up and OD, roundness and weld quality drift until the mill must stop for re-roll. Mills with soft shaft material face frequent, expensive re-tooling and inconsistent output.
Ordinary shaft steel deforms and wears under continuous rolling pressure and heat, especially on the high-load forming and sizing stands. Once the pass profile shifts, every tube drifts out of tolerance, and frequent roll changes raise downtime and tooling cost.
Forming and sizing stands use 42CrMo roll shaft material, quenched, tempered and high-frequency hardened, for high wear resistance and a stable pass profile.
Overload-protected horizontal stands protect rolls and the drive train under abnormal load, reducing the risk of shaft and roll damage.
Side-pull quick-change frames simplify roll replacement when it is eventually needed, cutting maintenance downtime.
| Parameter | Specification |
|---|---|
| Tube outside diameter | φ10–26 mm |
| Wall thickness | 0.4–1.5 mm |
| Rated production speed | up to 90 m/min |
| Raw material | HR / CR low-carbon steel, galvanized steel |
| HF welder power | 100 kW solid-state |
| Forming stands | 5 rough + 3 finish |
| Sizing stands | 6 horizontal + 6 vertical |
| Leveling rolls | 7-roll precision leveler |
| Cut length / precision | 4–8 m, ±3 mm |
| Coolant flow | ≥10 t/h spray + overflow pool |
| Roll shaft material | 42CrMo quenched & tempered + HF hardened |
Every ZY20 runs one continuous flow from coil to finished cut tube. An uncoiler feeds strip through a 7-roll precision leveler that removes coil-set, then double-radius forming shapes it in 5 rough and 3 finish stands without edge wave. A 100 kW solid-state HF welder fuses the seam under squeeze pressure with a dedicated seam guide, and an automatic outside-burr unit clears the bead immediately. ≥10 t/h spray plus overflow-pool cooling locks the shape, the 6-horizontal + 6-vertical sizing train sets the diameter, and a 4-roll Turk head straightens the tube before the microcomputer flying saw cuts 4–8m lengths to ±3mm. Overload-protected stands and 42CrMo hardened shafts keep the whole line stable over long runs.
Continuous, high-volume tube production where roll shaft life and dimensional stability directly determine output quality and operating cost.
Ask for the roll shaft material and heat treatment — the ZY20 uses 42CrMo with quenching and high-frequency hardening. Check overload protection and quick-change design to keep maintenance short.
The ZY20 ships as a turnkey package with layout and foundation drawings so you can prepare the site before delivery. Engineer-led on-site installation and commissioning bring the line to rated output, with operator training to hand over a running mill. A one-year warranty with spare-parts support protects the investment, and because the line accepts HR, CR and galvanized coil, you can adapt to changing material costs and market demand without re-tooling.
42CrMo, quenched, tempered and high-frequency hardened for wear resistance.
Horizontal forming stands carry overload protection to shield rolls and the drive train.
Side-pull quick-change frames let operators swap rolls without dismantling adjacent stands.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1996
Total Annual:
30000000-40000000
Employee Number:
200~500
Ecer Certification：
Verified Supplier
Zhangjiagang Zhongyue Metallurgy Equipment Technology Co., Ltd is located in Xiangshan Road, Jingang Town, Zhangjiagang City, Jiangsu Province, China. With the registered capital of RMB20,000,000 yuan, the company specialize in manufacturing high-frequency precision welded pipe lines, H-Beam steel p... Zhangjiagang Zhongyue Metallurgy Equipment Technology Co., Ltd is located in Xiangshan Road, Jingang Town, Zhangjiagang City, Jiangsu Province, China. With the registered capital of RMB20,000,000 yuan, the company specialize in manufacturing high-frequency precision welded pipe lines, H-Beam steel p...
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