Rebuilt Hitachi ZR22-50 Sendzimir 20-Hi Cold Rolling Mill | Galaxie Corporation, Wayne, Michigan, USA

This rebuilt Hitachi ZR22-50 Sendzimir 20-Hi cold reversing rolling mill is available from Galaxie Corporation. It is set up for cold rolling stainless strip in widths of 600–1,270 mm.

Entry thickness is 0.3–5.5 mm and output thickness is 0.1–4.0 mm. Mill speed runs 0–120 m/min and up to 240 m/min. The mill comes with two tension reels, two coil cars, two I2S gamma gauges and spare backing assemblies, work rolls and intermediate rolls.

The page lists an electrical upgrade, AGC and I2S gauges added by Tenova in 2012, with the mill and winder motors rebuilt in 2012.

Key Features

• Electrical upgrade, AGC and I2S gauges added by Tenova in 2012
• Mill and winder motors rebuilt in 2012
• ABB DCS 800 digital drives with APC digital controller and touch screen operator stations
• Two I2S gamma gauges and two tension meters
• Two coil cars, two tension reels and two crop shears
• AMC rolling oil and filtration system with three filter tanks
• Fire prevention system
• Spare backing assemblies, work rolls and intermediate rolls included

Technical Specifications

• Model: ZR22-50
• Type: Sendzimir 20-Hi cold reversing mill
• Strip width: 600–1,270 mm
• Entry thickness: 0.3–5.5 mm
• Output thickness: 0.1–4.0 mm
• Mill speed: 0–120 m/min, up to 240 m/min
• Capacity, tension reel: 22,500–250 kg at 240 m/min
• Capacity, pay-off reel: 3,900 kg at 193 m/min
• Mill motor: DC 1,400 HP, 178/358 RPM
• Tension reel motor: DC 1,200 HP, 150/450 RPM
• Pay-off reel motor: DC 170 HP, 300/900 RPM
• Coil inner diameter: 508 mm
• Coil outer diameter: 1,400 mm
• Maximum coil weight: 10 t
• Frequency: 50/60 Hz
• Drives: ABB DCS 800 digital drives
• PLC: CPU315 and PAC Systems RX31

Applications

• Cold rolling of stainless steel strip
• Reducing coil thickness to thin gauges
• Producing strip for further processing or fabrication

Commercial Details

• Make: Hitachi
• Model: ZR22-50
• Condition: Rebuilt
• Location: Wayne, Michigan, USA
• Seller: Galaxie Corporation

Frequently Asked Questions

• What strip sizes can this mill roll? It takes strip 600–1,270 mm wide, entering at 0.3–5.5 mm and leaving at 0.1–4.0 mm.
• What coil size can it handle? Coils have a 508 mm inner diameter, up to 1,400 mm outer diameter and a maximum weight of 10 t.
• What upgrades does it have? Tenova carried out an electrical upgrade and added AGC and I2S gauges in 2012, and the mill and winder motors were rebuilt in 2012.
• What should I ask when enquiring? Ask for photos or video of the mill running, details of the rebuild, which spare rolls and backing assemblies are included, the control and drive setup, and loading and shipping arrangements.