Prima Fabbrica Italiana di Rettifiche Leading Italian Grinder Manufacturer
INternal & EXTERNAL diameter Grinding machiine MT 250 MTC MT 500 MTC MT 900 MTC
Global Performances Domestic Attitude Gb
internal & EXTERNAL diameter Grinding machiine MT 500 MTC
Global Performances Domestic Attitude
MORARA INTERNAL & EXTERNAL Grinders - MT250MTC - MT500MTC - MT900MTC
MT 500 MULTIMATIC IMT MORARA: MORE POWER, MORE FUNCTIONS BORN TO MANUFACTURE The Morara MT 500 Multimatic is a multitasking universal grinder equipped with a cross carriage and turret (can host 4 wheel spindles). Ensures combined grinding of internal and external diameters and shaving on medium-sized workpieces: up to 500 Kg with a length of 350 mm and a diameter of 500 mm. (height of centres: 300 mm). Performs multiple cantilever machining processes at once on with remarkable speed and flexibility, simultaneously grinding internal and external diameters with a perfect finish.
MULTIMATIC’S PROVEN SUCCESS It inherits the success of the Multimatic CLASSIC, the Morara grinder found in all factories with high production outputs, of which it preserves the operating principle updated with the most advanced technology, i.e. it integrates torque motors on all the rotary axes (including the workhead), contributing more power and functions: heightened removal, better finish, higher precision.
MULTIBRAND SYNERGIES. Designed with state-of-the-art technology and developed by exploiting the know-how and synergies of the IMT engineering staff, the primary goal being uncompromising constructional excellence. The new Morara MT 500 Multimatic combines an incredibly brief cycle time with fast retooling, the fruit of upgrades tied among other to the new, user-friendly software. The new Morara MT 500 Multimatic uses a technological platform shared by all the brands of the IMT Group, ensuring a great price/quality ratio and short delivery times.
SUPPORT GUARANTEED The units are laid onto a powerful single-block structure in cast iron designed with the most modern 3D solid parametric modelling technology and monitored with FEM analytical software, which ensures utmost stiffness and precision over time. The result is an exceptionally solid structure, with an overall machine weight that does not exceed 10 tons.
MINIMUM SET-UP TIME LOADING/UNLOADING
AND
AUTOMATIC
WORKPIECE
The new Morara MT 500 Multimatic guarantees an ultra-fast workpiece change-over thanks to set-up times lowered to a bare minimum. For instance, any possible taper errors on the workpiece are eliminated by moving the entire lower plane with an automatic unlocking device which, by means of a small cam, simultaneously corrects the position of all the electro-spindles, properly realigning them. The sturdy workhead with torque motor boosts performance and provides non-stop position monitoring: an important innovation for workpiece synchronisation, which is essential during automatic loading operations.
units bed The single-block and modular structure in stabilised, widely ribbed cast iron or in synthetic granite has been developed using the most modern 3D solid parametric modelling technology, checked with FEM analysis.
UNIT FOR INTERNAL GRINDING LONGITUDINAL SLIDE (Zi AXIS) & TRANSVERSAL SLIDE (Xi AXIS) Both assembled on linear guides with high precision recirculating rollers. Movement is provided by a Siemens motor and high precision recirculating ball screw, with resolution equal to 0.0001 mm. Longitudinal position controlled by duly pressurised Heidenhain absolute optical linear scales. UNIVERSAL “B AXIS” TURRET with ELECTRO-SPINDLES Wheel carrier unit assembled on rotary turret driven by a Torque motor (“direct drive”). Angular position can be programmed from NC; adjustment from - 20° + 230°; - Positioning resolution 0.00017°, Pneumatic system to lock the turret into its programmed position. Up to 4 electro-spindles can be installed with body from 100 to 150 mm. Comes with guard to protect the operator’s hand. INTERNAL GRINDING WHEEL DRESSING UNIT Fastened on the side of the workhead in the front part of the machine, it includes fold-away hydraulic movement (uses the Xi and Zi axes of the process).
UNIT FOR EXTERNAL GRINDING LONGITUDINAL SLIDE (Ze AXIS) and TRANSVERSAL SLIDE (Xe AXIS) Assembled on linear guides with high precision recirculating rollers. Movement is provided by a Siemens motor and high precision recirculating ball screw, with movement resolution equal to 0.0001 mm. Longitudinal position controlled by duly pressurised Heidenhain absolute optical linear scales. WHEEL SPINDLE Hydraulic wheel spindle (with “RIGHT-HAND” WHEEL) moving on bushings, suitable for grinding wheels with size mm. 610 X 80 X 203.2, 11 kW motor; FLANGES AND HOUSING built according FE-PA code. Comes with guard to protect the operator’s hand. EXTERNAL GRINDING WHEEL DRESSING UNIT Fastened on the bed behind the workhead. The same XE and ZE processing axes are used for dressing operations.
“C AXIS” WORKHEAD The spindle is assembled on high precision angle-contact ball bearings, while the rotary movement is provided via direct drive and incremental rotary measuring system. Continuous speed variation adjustable from NC.
APPLICATIONS AUTOMOTIVE, GEARBOX & HIGH PRODUCTION MT MULTIMATIC provides Input Shaft (bore and taper), Speed Gear (taper, bore, front and back face) and Bevel Gear (bore and face) grinding with unparalleled precision and speed. Cycle time is dramatically cut down thanks to simultaneous internal and external grinding, making this machine the perfect solution for continuous grinding applications.
WIND & SPECIAL EQUIPMENT MT MULTIMATIC is the excellent grinding solution for very heavy parts up to 1,000 Kg.
GEARS MT MULTIMATIC is ideal for integral grinding. It grinds front face, back face and bore in a single set-up.
BEARINGS MT MULTIMATIC grinds complex parts with different angles and shapes thanks to torque motor driven work head and B-axis turret.
MORARA INTERNAL & EXTERNAL Grinders - MT250MTC - MT500MTC - MT900MTC TECHNICAL SPECIFICATIONS CHARACTERISTIC DATA
Versions
UoM
MAX distance Workhead plane / internal spindle
400
900
1050
mm
MAX swing diameter
250
360
500-900
mm
70
130(250)
1000
Kg
150
250(400)
500
mm
0-150
20-350
100-500
mm
50
70
100
mm
Max grindable INTERNAL diameter
120
200
450
mm
Max grindable INTERNAL depth
100
170
250
mm
8000
11500
13500
kg
30
35
40
kw
220
260
350
mm
MAX speed in rapid mode
12
12
12
m/min
Resolution
0.1
0.1
0.1
μ
9
10
10
Nm
220
260
350
mm
MAX speed in rapid mode
12
12
12
m/min
Resolution
0.1
0.1
0.1
μ
9
10
10
Nm
MAX cantilever weight (including equipment) 100 mm from the Workhead spindle nose MAX length of workpiece + equipment (*) Max grindable EXTERNAL diameter Max grindable EXTERNAL length
Total weight of grinder, accessories excluded (approx) Total power installed, accessories excluded (approx) Axis “Xe” at 30°°
MAX Travel
Brushless motor torque Axis “Ze”
MAX Travel
Brushless motor torque External grinding wheel unit
Max EXTERNAL grinding wheel sizes Standard peripheral speed
450X50 610X70 760X100
mm
50
50
50
m/sec
9
11
15
kw
200
40(220)
350
mm
MAX speed in rapid mode
12
12
12
m/min
Resolution
0.1
0.1
0.1
μ
5
9
9
Nm
340
530
610
mm
MAX speed in rapid mode
12
12
12
m/min
Resolution
0.1
0.1
0.1
μ
9
9
9
Nm
Grinding wheel spindle power Axis “Xi”
MAX Travel
Brushless motor torque Axis “Zi”
MAX Travel
Brushless motor torque Standard Workhead
External/internal connection Bar passage MAX speed (adjustable from CNC) MAX torque to spindle Manual adjustability on horizontal level (*) upon prior technical inspection
ASA5/M5 ASA6/M5 ASA11/M6
/
30
38
45
mm
0-700
0-600
0-250
rpm
78
132
450
Nm
-10° 20°
-5° 20°
-5° 20°
°
MORARA at a glance • Our Business: precision • The Market: all companies which perform grinding processes, small and large grinders alike. • The market sections: - Vehicles with 4 or 2 wheels, Off-road vehicles, railway, naval, aviation industry. Transmissions and drive reducers. Machine tools, textile machines. Electrical household appliances, electrical tools (light and heavy industrial, do-it-yourself). Tool sets, dressing, tool holder (hard metal and ceramics) • The activities: internal and external grinders for cylinder-shaped and polygonal surfaces, for cam and gooseneck shafts. • Our driving principles: top value for the customer, state-of-the-art technology, modularity, assembly options. • The most valuable asset: Expertise in the grinding process • Our history: MORARA is the no. 1 company in Italy when it comes to grinding.
IMT – Italian Machine Tools, the industrial group that gathers into one Morara, Tacchella, Meccanodora, Favretto, is controlled by PARITEL Corporation. PARITEL HOLDING is an industrial investment company founded in Bologna in 1989. paritelspa.it
www.morara.it
www.imtgrindinggroup.com
IMT S.p.A. stabilimento MORARA - DECIMA 40033 Casalecchio di Reno (Bo) Italia via Cimarosa, 17
+390516117811 +390516117815
Catalogue Subject to change without prior notice. Information contained is not binding
• The location: Italy, Emilia Romagna, and Bologna with its 900-year-old university are a district of excellence for machine tools.