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Praga Division
praga

Praga Division, C.I.E. Gandhinagar, Balanagar, Hyderabad-500 037, AP.
 
Telephone 91-040-2307 3051(PBX) 91-040-2307 3026
Fax 91-040-2307 0061
Email hmt.pragatools@gmail.com | pthsales@hmtmachinetools.com
Inception
1943
Managing Director -
Unit Chief Mr. Y. Jayakar Reddy
Joint General Manager (Operation)
Telephone 91-040-2307 3062
Sales Chief Y.Srinivas
Manager(Sales)
Telephone 91-040-2307 3026
Fax 91-040-2307 0061
 
Major Manufacturing Facilities
arrow Can handle machining of components weighing up to 10 tons
arrow A range of C NC machines for manufacturing small parts and medium parts
arrow Tool room with latest facilities
arrow In-house heat treatment plant
 
1.1 Thread Rolling Machines :
For Consistent Threading, Spline Rolling, SPL . Form Rolling for high production and repeatability.
 
thread rol Job dia Length Infeed/Through feed Max rolling thrust  Motor 
512 1 to 50 mm 130 mm / unlimited 12 tonnes 3 Kw
518 3 to 75 mm 160 mm / unlimited 18 tonnes 9 Kw
513 3 to 80 mm 200 mm / unlimited 24 tonnes 9 Kw
514 3 to 100 mm 250 mm / unlimited 36 tonnes 9 Kw
 
Spline Rolling Machine :
The Process incremental is a revolutionary cold forming process patented by our collaborator Escofier of France. By this process different complex profiles like involute splines, serrations, knurling and helical forms or circular grooves can be cold formed by the interaction of two positively driven cylindrical forming rolls.

Model Table Max.Dia (mm) Motor
541 - 30 20 Kw
542 - 45 35 Kw
       
 

Pulley Forming Machine :
Produces Pulley grooves in varieties of pulleys of all automobiles and two wheelers .... in seconds.

Model Max. Min Motor
548 -   -
Dia.of Pulley in (mm) 200 65 -
Blank Thickness in mm 8 3 12.5 Kw
       
 

Surface Grinding Machine :
For high quality surface finishing and process capability.

Models: 451, 451P, 451AP, 451AG, 451MP, 452P, 452AP, 452AG, 452 MP.
Precision surface grinder to produce micro surface finish.
Exclusive low pressure hydraulics with monobloc design.

Also available in both series:
- Automatic vertical downfeed
- Automatic grinding cycle
- Flexible automatic grinding cycle controlled through a micro processor based system

 

sur

Model Table Table speed Motor
451 series 450 x 150 mm 1.5 to 18 metres/min. 0.75 Kw
452 series 625 x 220 mm 3 to 18 metres/min. 1.5 Kw
       

     
 

Cutter & Tool Grinder:
For accurate sharpening and tool maintenance.

  Models 411, 414 & 415 with swivel and tilting wheelhead Wide range of accessories for grinding applications.
cutter Model Wheelhead Job swing x length (mm) Table Motar
  Swivel Tilt      
411 338 - 203/305 x 480 mm 750 x 110 mm 0.55 Kw
414 360 180 203/305 x 480 mm 750 x 110 mm 0.55 Kw
415 360 180 280/390 x 735 mm 1000 x 150 mm 0.75 Kw
 
Horizontal Machining Centre
For Replacement of Manual Machine, for high accuracy and efficiency, for generating of complex shapes for 24 hours continuous operation and mass production with high accuracy.

hor_mac

Model Table Size (mm) Traverses (mm) Power
H 40 A 400 x 400 500 x 480 x 480 7.5 Kw
H 50 A 500 x 500 630 x 630 x 500 11 Kw
H 50 B 630 x 630 800 x 630 x 500 11 Kw
H 60 A 630 x 630 800 x 800x 630 15 Kw
H 60 B 800 x 800 1000 x 800 x 630 15 Kw
 
CNC Lathe :
Powerful, accurate, compact, rugged, efficient built with slant bed to give high speed and high performance.
lathe Model No.of Tools Swing Over bed Turning Length (mm) Spindle Power
         
         
         
         
 
CNC Milling Machine :
Wide range of machining , outstanding operatability, stable, high accuracy, perfect chip disposal, mechatronics. For highly efficient machining of small and medium size workpieces.
mil_mac Model Table Size (mm) Traverses (mm) Spindle Power
231 CNC 1040 x 230 600 x 230 x 560 3 Kw
231 CNC- V 1040 x 230 600 x 230 x 390 3 Kw
       
Controls : Latest versions of Fanuc / Siemens.
 
CNC Cutter and Tool Grinder :
For accurate sharpening and tool maintenance with 3 and 4 AXES.
cutter Model No.of Axes Table Size (mm) Traverses (mm)
421 3 750 x 105 415 x 180 x 200
425 4 1000 x 150  
       
Controls : Latest versions of Fanuc / Siemens.
525 x 250 x 275
 
CNC Surface Grinder :
First of its kind CNC SG with features covering crgonomics, aesthetics and higher accuracies with latest state - of - art CNC controls. This is capable of complex profile dressing and also grinding.
sur_gri Model Max. Grinding Width x Length ModelVertical MovementPower
455 300 x 600 mm 450 mm 2.25 Kw
       
       
Controls : Latest versions of Fanuc / Siemens.
 
MACHINE TOOLS ACCESSORIES LATHE CHUCKS :
Praga Lathe chucks were first manufactured with the technical collaboration of M/s.Pratt Burnerd, U.K in the year 1960. Praga Lathe chucks are a name then, Praga Lathe chucks are a name to reckon with in the realm of work holding devices both in the domestic and overseas market. Praga Lathe chucks are known for its Precision and accuracy with a price which is very competitive, Its user base accompanies the small workshop to a very large sized organisations such as BHEL, Maruthi udyoug, Hindustan Motors, Indian Railways, Defence organisations etc.,
 

jaw3

Specifications :
Body:High tensile iron
Jaws:2 sets of 3 hard
Pinions:3 Ni steel, toughened
Scroll:Ni-Cr-Mo steel, with precision cut
spiral. Precision balanced (Conforms to BSS)
jawself
 
d b d2 d3-d6 d4 d5 d7 h1 h2 t
100 16 76.2 88.9 M6 25.4 6.75 48.5 65.7 9
160 19 125 140 M10 46 10.5 64.3 86.5 4
200 19 160 176 M10 55 10.5 73 102 4
250 22.5 200 224 M12 76 12.3 84.3 117 5
315 22.5 260 286 M12 103 12.3 90.5 128.5 5
 

jaw3

Specifications :
Body:High tensile iron
Jaws:1 set of 4 reversible hard
Operating Screws:Ni-Cr-Mo alloy steel
Thrust Bearing:Double bearing from 10" size
Tee Slots:Standard in all chucks from 14" and above
Through Slots:Provided in all chucks from 20" and above (Conforms to BSS)
jawself
 
CHUCK A B C D E F G H J K WEIGHT
ins 6 6 2 1/4 1.9/16 5.0005-5.0000 3/16 4.1/8 - 1.1/32 2.1/8 15/16 16 1 b
mm 150 152.4 57.1 39.6 127.0127-127.00 4.8 104.8 4 x M10 26.2 54.0 23.8 7.3 kg
ins 8 8 3.1/8 1.3/4 4.7505-4.7500 1/4 3.7/8 - 1.19/64 3.1/8 1.3/16 34 1 b
mm 205 203.2 79.4 44.4 120.6627-120.65 6.3 98.4 4 x M10 32.9 79.4 30.2 15.4 kg
ins 10 10 3.1/4 2 6.0008-6.0000 5/16 5.1/8 - 1.33/64 3.3/8 1.3/8 60 1b
mm 255 254.0 82.5 50.8 152.4190-152.40 7.9 130.2 4 x M10 38.5 85.7 34.9 27.2 kg
ins 12 12 3.1/2 2.3/4 7.0008-7.0000 1/2 5.7/8 - 1.13/16 3.7/8 xxxx 80 1b
305 304.8 88.9 69.8 177.8190-177.80 12.7 149.2 4 x M12 46.0 98.4 38.1 36.3 kg
ins 14 14 3.1/2 3 7.0008-7.0000 1/2 5.7/8 - 2.1/16 4.3/8 xxxx 98 1b
mm 355 355.6 88.9 76.2 177.8190-177.80 12.7 149.2 4 x M12 52.4 111.1 38.1 44.4 kg
ins 16 16 3.11/16 3 9.5010-9.50000 5/8 8.3/16 2.1/16 4.3/8 xxxx 126 1b
mm 405 406.4 93.7 76.2 241.3254-241.30 15.9 208.0 4 x M16 52.4 111.1 38.1 57.1 kg
 
 
 
 
     
 
 
 
  Last Update:04/09/2014  |  You are Visitor No: 937162
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