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LUTHER DBQ 3500 X 48 MM BENDING AND ROUND BENDING OF CYLINDERS AND TAPERS.

Make:      LUTHER
Model:     DBQ 3500 x 48 mm
Year:      1976

For pre-bending and round bending of
cylinders and tapers.

With adjustable lateral rolls.

TECHNICAL DATA:

Plate width                                        3500 mm
Bale length of rolls                               3600 mm
Distance betw. uprights                            3700 mm
Sheet thickness at strength 240 N/mm²:
for pre-bending at full plate width                  38 mm
for round bending at full plate width                48 mm
Rolls diameter: top roll                            650 mm
lateral rolls                       450 mm
Number of rolls                                       3
Rolls strength                               850 -  950 N/mm²
Driven rolls                                          3
Bending speed                                         4 m/min.
Approach: hydraulically
Tilting bearing: hydraulic
Tilting of top roll: hydraulic
Mobile operation desk
Indication of roll position: 2 x digital
Electr. connection:  4 x hydr. motor, each           45 kW
Weight of the machine approx.                        75 t

Ref. 81238

BRONX HEAVY DUTY INITIAL PINCH PYRAMID BENDING ROLLS.

YEAR OF MANUFACTURE:  1973.

SPECIFICATION
CAPACITY  Pre-Bending & Rolling  Rolling only
Material  Mild Steel  Mild Steel
Tensile strength  28/32 tons/sq.in  28/32 tons/sq.in
Maximum width  11’(3,350 mm)  11’ (3,350 mm)
Maximum thickness at this width  2” (50 mm)  2½” (63.5 mm)
Minimum inside diameter of rolled cylinder at maximum capacity  30” (762 mm)  37 ½” (952 mm)
Maximum thickness of plate when hot rolling (finished rolling temperature 850° C.)  4” (102 mm)  5” (127 mm)
Minimum inside diameter of  40” (1,016 mm)  50” (1,270 mm)

rolled cylinder at maximum capacity hot rolling
CONE ROLLING ATTACHMENT:
To facilitate the rolling of taper or conical forms, a skid plate is fitted to the inside of the non-drive end housing.
ELECTRICAL EQUIPMENT
Motors:
Main Drive  
 - 150 H.P. half hour rated – slip ring screen protected – foot mounted type.

Bottom Roll Adjustments  
 - 50 H.P. half hour rated – slip ring screen protected – foot mounted type.

Hydraulic Power Pack Motor  
 - 10 H.P. continuously rated – Squirrel cage – screen protected – foot mounted type.

Control Gear:
Main Drive  
 - Drum type reversing control gear with 5 minute rated wire wound resistances, designed to pass 100% full load on the first notch or operating position in each direction. The controller will be fitted with off position interlock and limit switch rings where necessary.

Bottom Roll Adjustments  
 - Drum type reversing control gear with 5 minute rated wire wound resistances designed to pass 100% full load on the first notch or operating position in each direction. The controllers will be fitted with off position interlock and limit switch rings where necessary.

Hydraulic Power Pack  
 - Direct-on-line contactor type starter, operated from a maintaining type push button station.

Solenoid valves for operating cylinders are push button operated.

Note:
Full protection to be provided for all the above control gear by a circuit breaker, incorporating overload and no-volt protection.
FEATURES AND EQUIPMENT
Spare Roll included with the machine.

LENGTH  TBA MM
WIDTH  TBA MM
HEIGHT  TBA MM
WEIGHT  95 tonnes

Ref. 81241

PARMIGIANI 4 ROLLS FULLY HYDRAULIC BENDING MACHINE

Capacity  3000 x 30 / 36
Y.O.M.  2001                                                                   
Upper roll diameter  mm. 460
Lower roll diameter mm. 430
Side rolls diameter mm. 340
Digital read out
Conical device
Hardened rolls
Vertical and side arms
Weight  KG. 25.000
Power installed   KW 45  ,Volt  380,  50 HZ
 
Ref. 81242