219mm Unit Technical Parameters

I. Unit Process Flow

1. Coil Loading → Uncoiling → Straight Head → Pinch Roll & Leveler → Guide → Edge Roll Centering → Crop Shear → Automatic Butt Welding → Edge Roll Centering → 2-Roll Pinch Roll → Guide → Anti-Coil Bounce → Loop Accumulator Transition → Loop Accumulator → Mill Transition → Mill Feed 2-Roll → Anti-Coil Bounce Roll → 5-Roll Flattener → Anti-Coil Bounce Roll → Forming → High-Frequency Welding → Sizing → Push Squaring → Straightening → Flying Cut-Off → Runout Table → Automatic Tilter → Secondary Tilter → Runout Table → Automatic Counting & Stacking

II. Main Equipment Description

1. Loading Carriage

· Function: Transfers the steel coil to the uncoiler, centering the coil with the uncoiler cone.

· Carriage Lifting Method: Hydraulic (with one 22kW hydraulic power unit)

· Carriage Travel Method: Electric

· Coil OD: Φ1100 – Φ1800mm

· Technical Parameters: Four-rod positioning system for stable positioning; Travel reducer BWN33-87-4; Cylinder model HSG-220/160-1000; Uncoiler reducer BWED4527-385-7.5

2. Double-Cone Uncoiler & Hydraulic Straightener

· Function: Places the steel coil vertically onto the uncoiler; the straightener feeds the strip from the coil.

· Composition: Active double cone head, hydraulic peeling knife, active pinch roll, straightening device.

· Coil Rotation Method: Electric

· Coil Uncoiling & Straightening Method: Hydraulic

· Coil OD: φ1100 – φ1800mm

· Coil ID: φ500 – φ810 mm

· Hydraulic Cylinders: Cone head HSG-115/63-600 (2 sets); Straightener arm down press cylinder HSG-160/100-500; Straightener roll lift cylinder HSG-115/80-500; Peeling knife extend/retract cylinder HSG-95/50-800

· Reducers: Cone head BWD5-71-7.5; Straightener roll φ320×400mm

· Includes: 1 set electric control console

3. Pinch Roll & Leveler

· Function: Pinch rolls feed the strip; leveling rolls flatten the uncoiled strip.

· Composition: Double guide device, main leveler body, motor & reducer, base frame.

· Guide Roll Dia. x Length: 4 rolls, φ250×250mm

· Pinch Roll Dia. x Length: 2 rolls, φ220×780mm

· Leveling Roll Dia. x Length: 5 rolls, φ220×780mm

· Roll Material: 40Cr

· Roll Surface Hardness: HRC 48°-52°

· Pinch & Leveling Drive Method: Electric

· Pinch & Leveling Down-Press Method: Hydraulic

· Hydraulic Cylinders: Pinch roll cylinder HSG-180/95-85 (2 sets); Leveling cylinder HSG-235/140-100 (2 sets)

· Reducer: BWED4527-187-7.5

· Note: 5-roll leveler is 2-top / 3-bottom configuration, hydraulically controlled, jog capable, with pressure holding.

4. Crop Shear

· Includes one 22kW hydraulic power unit and one electric control console.

· Function: Hydraulic front and rear movement of strip ends to facilitate automatic butt welding.

5. Loop Accumulator Transition Roll Assembly

· 4 groups, 2 rolls/group.

· Transition Roll Dia. x Length: φ120×950mm

· Roll Material: GCr15

· Roll Surface Hardness: HRC 58°-62°

6. Loop Accumulator (Horizontal Looper)

· Outer Diameter: 11m

· Frequency Drive Motors: 14 units, model Y2160M-4-11KW

· Reducers: GFA77-Y11-4P-5.76-113

· Dimensions: Loop flat roll top to outer ring top edge: 650mm; Inner ring height: 1550mm; Center ring height: 2700mm

· Feed Flat Rolls: φ250×1000mm

· Outer Ring Vertical Rolls: φ110×600mm

7. Mill Section

① Mill Feed 2-Roll: 1 set. Motor: Z4-200-11-37KW-750r/min; Reducer: ZSY315, ratio 5:6

· Anti-Coil Bounce Rolls: 2 sets

· 5-Roll Flattener: 1 set

② Forming Section: 8 stands vertical rolls, 7 stands horizontal rolls, 1 small guide stand.

· Motors: 2 units Z4-280-21-200KW-1000r/min

· Horizontal Roll Electric Adjustment Motors: 7 units Y~2~100L~2~-4-3KW

· Reducers: GKA47-Y3KW-7.36-M4

③ GGP-800/0.2-HC High-Frequency Welding

· 4-Roll Squeeze Rolls: Electrically adjustable.

· Top Squeeze Motor: Y100L~2~-4-3KW

· Main Squeeze Motor: Y100L~2~-4-3KW

· Reducer: BWD2-11-3

④ Sizing Section: 4 stands vertical rolls, 5 stands horizontal rolls, 1 stand finishing roll.

· Motors: 1 unit Z4-280-21-200KW-1000r/min; 1 unit Z4-280-42-250KW-1000r/min

· Horizontal Roll Electric Adjustment Motors: 5 units Y2100L2-4-3KW

· Reducers: GKA47-Y3KW-7.36-M4

· Note: Main gearbox with high/low speed adjustment, model SZ325BS, ratio 1:1 / 1:1.73. Large gearbox ZSY315SZ, ratio 23.63/1:1. Small gearbox SZ325Z, ratio 1:1. Includes one 22kW automatic block press.

⑤ Push Squaring Section: 5 passes.

· Electric Adjustment Motor: YEZ-112L-4-4.5KW

· Reducer: XLD4-11-4.0

⑥ Straightening Head: 2 heads, 8 rolls each.

⑦ Flying Cut-Off (Saw Type)

· Saw Motor: YE3-315L1-4-160KW

· Includes: 1 set 15kW water-cooled hydraulic power unit.

⑧ Runout Table

· Runout Rolls: 63 rolls

· Runout Table Motors: 31 units BM-100L-4-2.2KW, ratio 1:7

⑨ Tilting & Stacking

· Primary Tilter: 1 set (for 6-12m lengths)

· Automatic Counting & Stacking: 1 set (for 6-12m lengths)

· Secondary Tilter: 1 set

8. Random Spare Parts

· 159mm roll set (1 set), push square roll set (1 set), straightening roll set (1 set)

· 189mm roll set (1 set), push square roll set (1 set), straightening roll set (1 set)

· 219mm roll set (1 set), push square roll set (1 set), straightening roll set (1 set)

· Vertical roll stands (8 sets), vertical roll adjuster (1 pc), horizontal shafts (5 long, 9 short), horizontal roll slides (20 pcs), vertical roll shafts (8 pcs)

· Horizontal roll adjustment motor assembly for gantry (1 set)

· Runout table rolls (18 pcs)

· Bearing housings 23030 (14 sets)

· Guide roll bearing housings (2 sets)

· Drive shafts (4 pcs)

· Loop flat rolls / transition rolls (5 pcs)

· Loop kick-out motor assemblies (4 sets)

· Cone head motor assemblies (2 sets)

· Mill large gearbox (1 pc), small gearbox shift (2 pcs)

· Flying cut-off cylinders (2 pcs)

· Horizontal roll spacer rings (100 pcs)

Note: This equipment has previously produced the following section sizes:

· 200×100×3.75-7.75mm

· 200×150×3.75-7.75mm

· 150×150×3.75-7.75mm

· 150×100×3.75-7.75mm

Date: May 27, 2026