Technische Daten/ Technical data           

Rebar Rolling Mill 40 ton/hour

Original Supplier Danieli, Pomini, other Italian Co.

Lagernummer / Stocknumber: 09.001

 (Lagernummer bitte bei Anfragen angeben)

Baujahr / Year of Construction:  1979 - 1990

 

 

WVD Werkzeugmaschinen

Spielmannstrasse 24

D-35781 Weilburg

Tel. ++49 (0) 6471 322 610

E-Mail: wvd@online.de

Hompage: www.w-v-d.de

 

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Technische Daten:

TECHNICAL SPECIFICATIONS:

40 ton/hour Rebar Rolling Mill

Original supplier Danieli, Pomini, other Italian Co

year from 1979 - 1990

Technical specifications:

Premise

The rebar rolling mill is suitable to produce rebars 8 - 32 mm diameter

consisting of a set of second hand machines,

fully revamped and integrated with several new equipment where necessary,

completed with fully updated electrical

and electronic devices.

The reheating furnace (RHF) cannot be recovered from original site, but –as

option– we will offer the main

equipment of a pusher type-reheating furnace suitable to be installed in the mill.

Preliminary Data

Electrical data A.C. Voltage 400 V (Small motors)

Frequency 50 Hz

D.C. Motors 440 V

Auxiliary 24 V D.C., 110 V a.c.

Products Rebars 8 – 32 mm

Product tolerances According to DIN 488 3A or equivalent

Plant Productivity 40 t\h max.

Steel grades St 37.2 \ St 44 or BS 4449\88 GR60

Bars length 6 – 12 m

Starting Billet 120 x 120 mm, 130 x 130 mm, 140 x 140 mm max.

Starting Billet weight 500 kg approx.

Finishing speed 4 – 14 m\s approx.

Rolling features Dia. 8 \ 10 \ 12mm Slitting, Dia. 14 – 32 mm Single strand

Selling product Straight bar bundles, weight 800 – 1600 – 2500 kg

List of Machinery & Main Technical Data

WVDWerkzeugmaschinen

Spielmannstraße24

D-35781Weilburg

Tel.++49(0)6471322610

E-Mailwvd@online.de

www.w-v-d.de

1. Billet charging devices (Revamped used equipment)

Location RHF Entry side

Purpose Billet storing and pushing into the RHF

Length/width 12 x 2,5 m approx

Driving system Hydraulic

2. Reheating furnace (RHF) main components (OPTION)

Burners type Natural gas (possible heavy oil against modifications of the

system)

Number of burners 4 pc. for heating zone, 4 pc. for equalization zone

Heat exchanger (Rekuperator) Stainless pipes type, complete with recovery

chamber.

Burners fan Complete with a.c. motor

Chimney fan Complete with a.c. motor

Charging and discharging door

3. Billet detecting system

Location RHF front-end exit side

Purpose Billet presence detection before discharging

Quantity N° 1 detector

Driving Pneumatic

Aux. Equipment Proximity – emergency switch, encoder provision, on board

cooling system

Rebar Rolling Machine

4. Billet discharging system

Location RHF exit side, side wall

Purpose Billets discharging onto the roller table

Type Pusher type

Pusher stroke 5 m approx

Pusher driving Hydraulic (required by client)

Car lateral driving Gear motor

Pusher force 700 kg approx

5. Roller table at the RHF exit side

Location RHF exit side

Purpose Billet transfer from the RHF to the fixed roller table

Length 14,5 m approx

Barrel length 700 mm

Rollers pitch 600 mm approx

Auxiliary equipment First roller at the HF exit side independently driven,

emergency discharging, levers and cradles

6. Fixed roller table

Location Between RT item 5. and roughing stand

Purpose Roughing stand feeding and bar manipulation during roughing steps

Barrel length 1.200 mm

Rollers pitch 600 mm

Roller drives Individual torque motor, complete with pulley and belt auxiliary

equipment chutes (for roughing rolling)

7. Fixed roller table extension

Location Downstream fixed roller table

Purpose Bars transfer\manipulation for bars exceeding the fixed roller table

length

Length 8 m approx

Barrel length 350 mm approx

Rollers pitch 1.000 mm approx

8. Roughing mill TRIO type (Stand 1)

Driving motor A.C. Motor (Italian or European manufacturer)

Power 1.100 kW approx

Speed 730 rpm

Voltage to be defined according to the available motor

Auxiliary equipment Base plate

Flywheel group complete of Shaft, Wheel, Supports, and Couplings

Gearbox Ratio 1 : 7 approx Couplings

Pinions Stand Distance between pinions centre: 475 mm Complete of base

plate

Spindles group N° 3 Spindles complete with access o ries

Sleeves N° 3 Sleeves at pinions stand side , N° 3 S leeves at cylinder stand side

Roughing rolling stand TRIO type Opening cap type

Rolls diameter 500 mm max

Barrel length 1.200 mm

Gap adjustment Manual

Rest bars Entry and exit guides

On board systems Base plate

Lubrication unit for reduction gearbox and pinions stand

Rebar Rolling Machine

9. Tilting roller table

Location Roughing stand exit side

Purpose Bar lifting and feeding into the roughing stand

Length 7 m approx

Barrel length 800 mm

Rollers pitch 600 – 900 mm

Roller drive 1 individual torque motor, complete with pulley and belt

Auxiliary equipment Roller product conveyors, pusher to feed the bar into the

second pass

10. Side roller table

Location Parallel to the tilting table

Purpose To allow independent bar manipulation before last roughing step

Length 24 m approx

Barrel length 500 mm

Rollers pitch 1.200 mm

11. Bar chopping\cropping equipment

Location Continuous rolling mill entry side

Purpose Bar head and tail chopping, Emergency cutting

Cutting section 2.000 mm²

Speed 1 m\s approx

Pinch roll Rollers dia. 300 mm

rollers drive A.C. motor 11 kW

Rolls closing\ opening pneumatic

Flying Shear Blades shaft inter axis 500 mm

driving A.C. motor 37 kW

Blades run \ stop pneumatic clutch and brake

12. Intermediate rolling group Tandem 410 (stands 2 – 3)

Location Downstream to the shear item 11.

Driving motor D.C. 625 kW

Double distribution gearbox Inter axis 410 mm

Spindle groups 4 Steel spindles complete with accessories

Sleeves 4 Sleeves at pinions stand side, 4 Sleeves at cylinders stands side

Cylinder Stands Pomini pre loaded type Dia. Max 430 mm

Barrel length 800 mm

Gap adjusting Manual (single or simultaneous, by means of worm screw and

regulating screws)

Auxiliary equipment Base plates, Rest bars, rolling guides, on board systems,

lubrication unit

13. Intermediate \ finishing rolling mill type DL 350 (stands n° 4-5-6-7)

Location Downstream to the tandem item 12.

Driving motors D.C. (4 units) 350 kW each motor

Auxiliary equipment Base plate

Gear boxes \ pinion stands Exit pinion inter axis 350 mm max

Auxiliary equipment Base plates

Spindles group 8 Cardanic spindles, 8 Sleeves at the pinion stand side, 8

Sleeves at cylinders stand side

Rolling Stands DUO DL 350 type 4 Rolling stands

Rolls diameter 380 mm max \ 330mm min.

Barrel length 700 mm

Gap adjustment Manual (single or simultaneous, by mean of worm screw)

Rolls adjustment on roller bearings

Auxiliary equipment Base plate, rest bars, Rolling guides, on board systems, 1

lubrication unit

Rebar Rolling Machine

14. Bar chopping\cropping equipment

Location Downstream to the stand No. 7

Purpose Bar head and tail chopping, Emergency cutting

Cutting section 900 mm²

Speed 4m\s approx

Blades shaft inter axis 320 mm

Driving A.C. motor 37 kW

Blades run \ stop Pneumatic clutch and brake

Auxiliary equipment Opening trough for chopped pieces discharge, chute,

collecting box

15. Finishing rolling mill type DL 300 (stands n° 8 -9-10-11-12-13)

Location Downstream to the shear item 14.

Driving motors D.C. (6 units), 450 kW each motor

Auxiliary equipment Base plate

Gear boxes \ pinion stands Exit pinion inter axis 300 mm max

Auxiliary equipment Base plates

Spindles group 12 Cardanic spindles, 12 Sleeves each at the pinion stand side

+ cylinders stand side

Rolling Stands DUO DL 300 type 6 Rolling stands

Rolls diameter 325 mm max \ 280 mm min.

Barrel length 600 mm

Gap adjustment Manual (single or simultaneous, by mean of worm screw)

Rolls adjustment on roller bearings

Auxiliary equipment Base plate, rest bars, Rolling guides, on board systems, 1

lubrication unit

16. Vertical lopers

Location Intermediate \ finishing mill

Purpose Loop control

Quantity 4 Loopers

Loop formation Upper side

Fixed rolls 2 each looper

Persuader roll 1 each looper

Persuader roll control Pneumatic

17. Quenching system (future OPTIONAL)

Location Downstream to the finishing stand

Purpose Quenching of the rolled bars

Quantity 2 Strands (suitable for slitting system)

Operating pressure 18 bar approx (if Thermex type)

Calculated approx. length 12 m

Water delivery 250 – 280 m³\h approx

18. Cut to length equipment at cooling bed entry side

Products 8 – 32 mm dia.

Speed 3,5 – 14 m\s

Pinch roll Location Dividing shear entry side

Purpose Finished bars pinching and pulling

Rolls diameter 300 mm

Rolls drive D.C. motor 30 kW approx

Rolls closing opening system Pneumatic

Dividing shear Location cooling bed entry side

Purpose Bars cutting (at multiple selling length)

Driving system D.C. motor 200 kW approx

Entry and exit guides Carpentry made

Rebar Rolling Machine

19. Cooling bed

Purpose Natural air-cooling

Length/width 42 x 5 m approx

Teeth pitch 80 mm

Movable blades running system 2 Shafts with eccentrics

Gear boxes 2 Worm screws type

Clutch and Brake Pneumatically operating

Driving A.C. motor 25 kW approx

Auxiliary equipment Set of fingers, pneumatically driven for layer formation

20. Roller table at cooling bed exit side

Purpose Bars layer transfer to the cutting to length facilities

Length 42 m approx

Barrel length 450 mm

Rollers pitch 1.200 mm

Rollers drive A.C. motors (group rollers) complete with pulley and transmission

belts

21. Cold shear

Location End of roller table exit side

Purpose Bars layer cutting to selling length

Type Alternative cold cutting

Cutting force 150 t

Blades length 500 mm

Blades distance 120 mm max

Driving system AC motor, pneumatic clutch and brake, red. Gear inside

machine, eccentric shaft.

22. Movable stopper

Location Cold shear exit side

Purpose Bars layer lining-up before cutting

Type Movable on trolley, with dampened \ liftable head

Stroke 3 – 12 m

Head lifting\locking system Pneumatic

Auxiliary equipment Wheel runways (complete with locking system)

23. Roller table for product evacuation

Location Downstream the cold shear, parallel to movable stopper

Purpose Bars layer transfer (after cutting to length) + discharge into bundles

formation roller table

Length 15 m approx

Barrel length 500 mm

Rollers pitch 1.200 mm

Rollers drive AC motors (group of rollers, complete with pulley and transmission

belts)

Discharging layers system Pneumatic

Auxiliary equipment Dampened fixed stopper (roller table end)

24. Bundles forming roller table

Location Downstream to the bundle forming roller table

Purpose Bundles forming and feeding to the tying machine

Type Horizontal driven rolls, vertical idle rolls

Driving system AC motors and gear box

Rebar Rolling Machine

25. Tying machine

Location Downstream to the bundle forming roller table

Purpose Bundles tying

Type TMB 350, single and double turn

Operating wire 6 – 7 mm

Operating system Hydraulic, governed by PLC

26. Bundles feeding roller table

Location Downstream to the tying machine

Purpose Bundles feeding to the storage transfer

Type Horizontal driven rolls

Driving system AC motors and gear box

Length 15 m approx

27. Bundles storage transfer

Location Downstream to the roller table for bundles evacuation

Purpose Bundles storage

Type Chain type

Driving system AC motors and gear box

28. Hydraulic units

Location Various area where existing hydraulic components (Furnace, tying

machine etc.)

Purpose Driving of hydraulic devices

Quantity 2 central units

29. Electrical devices

All the electrical and electronic devices will be supplied with the updated

technology in order to allow the correct and

automatic running of the mill and the foreseen automatic machines installed.

The electrical equipment includes the

supervision system for the continuous rolling stands control, drivers, main pulpit,

local pulpits etc.

30. Engineering

General lay out, foundation drawings (excluding concrete calculations),

assembly drawings of the machinery, wearing

parts detailed drawings, electrical schemes, pneumatic schemes, wiring

schemes for water and oil \ air piping, roll

pass design, list of spares.

31. Exclusions

Electrical substation and power centre (separate offer can be issued after data

receiving), Cables, pipes, foundation

anchor bolts, erection, cranes, mechanical workshop and maintenance

machines and tools, first fitting fluids.

Whatever not expressly included in the offer.

 

 

Alle technischen Angaben sind nach unserem besten Wissen erstellt worden, für die wir jedoch keine Haftung übernehmen können. Wir empfehlen Ihnen daher, die Maschine zu besichtigen, um sich von der Richtigkeit der Angaben und dem Zustand der Maschine selbst zu überzeugen.

The above information is correct to the best of our knowledge, but we cannot be held responsible for any errors or omissions.