Thursday, May 15, 2014

GMT – The beginnings – Part-1


The GMT was founded by PV (P.Venkat Raman) in 1959 He had two objectives. While he pursued a personal childhood dream to be an engineer and "own machines", the broader vision was to start a business in a remote village and propel it into prosperity.
Pallikaranai was a tiny hamlet forgotten by the world, across the Pallikaranai Marsh from Velacherry.
This is the only photo available of the site of the company when it was built in 1966. A few wretched peasants eked out a living from paddy fields which stretched for miles around and to the visible horizon in front of the site. There was an "ERI" (a small lake) behind and another one to the right of the factory. At dawn and dusk herds of emaciated buffaloes crossed the winding dirt track which lead from Velacherry to Pallikaranai across the Marsh. During the monsoon, parts of the track were submerged in the Marsh and water snakes would often cross it.

Once GMT was built,  young local boys were employed, electricity and telephone lines came to the village, George set up his tea shop .... He flourished and grew sustaining GMT's employees  As it grew and started employing people from across the marsh, bus services were started by the then PTC at the company's request in 1972

PV succeeded in his dream in large measure

Tuesday, March 25, 2014

GMT chucks for Oil Country Lathes

Oil Country Lathes

Oil country lathes are heavy duty lathes with a big bore main spindle.  Four jaw independent jaw chuck one in front end and one in the rear end of the spindle is mounted with a suitable chuck flange. It is used for handling oil pipes for threading and casings.






GMT offers 4 Jaw Independent Chuck of sizes 630, 710, 800, 900. 1000, 1200, & 1600 mm dia. bore sizes of chuck will be as per catalogue specifications. Large bore can be offered on request. GMT also offers pneumatic front operated chuck with big bore large stroke of sizes 3b  630, 800 & 1000 mm dia. for holding long oil pipes. One chuck is mounted on the front end and one chuck is mounted on the rear side of the spindle.


Thursday, February 20, 2014

Procedure for sending GMT make chuck for reconditioning

For reconditioning of GMT Make chuck, please send the chuck to Guindy Machine Tools Limited; at No. 214 (Old No: 196), Velachery Tambaram Main Road, Pallikkaranai, Chennai – 600 100, through Road Transport, Freight pre-paid and door delivery, security packed and duly covered against transit risks. Please ensure that good quality of packing is provided, so that the same packing case can be re-used. If we find that the packing is not fit enough for re-use, we will use a fresh packing case at an extra cost. Kindly ensure that all the relevant dispatch documents (i.e.) copy of our Original invoice with the relevant Excise Gate Pass and your declarations etc. accompany the material while in transit to avoid any possible detentions by Central Excise or Sales Tax authorities at any of the Check Post en route. Please mention prominently the following to avoid any problems en route:
          ‘GOODS SENT FOR RECONDITIONING --------------------NO SALE
INVOICING INVOLVED----------------------      
0
5
0
CONSIGNEE’S C.S.T. NO.2003/67-68 Dated 08.01.1968.

REPLACING EXISTING GMT CHUCK/CYLINDER


REPLACING EXISTING CHUCK/CYLINDER - Is your existing chuck/cylinder of GMT make? If yes, give us the serial number engraved on the chuck body face. For cylinders please refer the metal label.   
Do you need to replace your chuck? Need a new Chuck 
We have been in the business of workholding for more than 5 decades in India. We have supplied over 55000 chucks to the Indian Manufacturing Industry. This has provided us with a valuable insight into the usage, maintenance and replacement of workholding products. Many a time we have come across GMT and imported chucks being replaced by cheaper brands. This leads to a loss of quality production and money in the long run. 
If it is of other make or if you are unable to give us the serial number, please provide us with complete spindle details along with the make and model of the machine.
 Contact us at esales@gmt.co.in

Wednesday, February 19, 2014

Berg Clamping systems Tool Clamping - HK / HKR



Application
Clamping sets of the type HKR are designed for clamping hollow shank tools according to DIN 69893.
Design features
HKR clamping sets have six collets held by an annular spring which allows a rocking movement for inserting and removing the hollow shank tools. During clamping the taper of the centrally positioned draw-bolt increases the actuation force, thereby generating a much higher clamping force at the collets. The special tribolic coating guarantees the highest possible constant clamping force. The clamping set is maintenance free. A locking bolt permits infinitely
variable positioning and fixation of the clamping set in the Z axis. No special tools are required for assembly and disassembly. The spindle has an easy to produce interior contour. The HKR-gripper has a built-in snap-hold feature allowing a toll to be hold securely in the spindel even in unclamped position.
Ordering example
HK 38
HKR 38
Delivery scope
Clamping set according to data sheet
Comments
When clamping without a tool the draw-bolt of the clamping set is supported at the end of the total stroke hT in the depth ‘m’ inside the spindle. If no possibility for the stop is provided at this point, it has to occur at a different point.


Gripper HKR

Type d2 a b c e f j k l m n s hT hS FB max
kN
FH
N
FS max
kN
SW1 SW2 MA
SW2
HKR 24 24 17 21,0 11 7,5 M 7 x 1 22,0 30 21,0 49 13,5 8,3 7,0 5,0 1,2 65 6 12 3 8
HKR 30 30 21 25,5 14 9 M 8 x 1 24,0 44 38,0 70 22,5 8,3 8,5 5,0 1,7 80 7 13 4 10
HKR 38 38 26 31,0 16 11 M 10 x 1 30,0 45 35,0 74 21,0 10,3 9,0 5,5 3,2 100 15 17 5 15
HKR 48 48 34 39,8 23 13 M 12 x 1 29,0 52 44,5 82 25,0 10,3 10,0 6,4 4,7 130 22 24 6 30
HKR 60 60 42 49,3 26 15 M 14 x 1,5 29,0 65 59,0 98 29,5 12,8 11,0 7,4 6,6 190 35 30 6 40
HKR 75 75 53 62,4 30 17 M 16 x 1,5 34,5 80 74,0 119 34,5 12,8 12,2 8,0 11,0 240 52 36 8 50









Sunday, February 16, 2014

About Guindy Machine Tools

P. Venkat Raman, a pioneering entrepreneur founded GMT in 1959 for manufacture of engineering products of high quality. He provided solutions to various import substitution problems. His collaborative work with top level professors at IIT, Madras, resulted in the first Indian Standards for surface plate calibration. 

Fifty years down the road, GMT continues to maintain its focus on quality engineering excellence with good values and a clear business ethos. The company has earned the trust of its customers and a premier place in the market. GMT enjoys an enviable reputation for the many milestone achievements in product development. Emphasis on quality, indigenous development, providing cost effective solutions, experience and prompt customer service has been key to our success.

GMT provides solutions for all workholding problems, be it cylindrical or non-cylindrical . GMT has a wide range of manual chucks, CNC Lathe chucks, power chucks and special chucks to suit your specific requirement. GMT's experience in the production of metrology equipment over three decades has resulted in the manufacture of world class coordinate measuring machines. GMT also manufactures machine tools like lapping machines, belt grinders, hydraulic cylindrical grinders and surface grinders. GMT believes in building lasting relationships with its customers through its Customer Education Programmes and by constantly monitoring customer needs and providing solutions to their requirements.Today the company is the only Indian supplier of high quality cam-operated manual chucks for lathes
 


Our product range includes:
GMT Special Chucks & Workholding: GMT make Power Operated Eccentric Compensating Chuck, Power Operated Eccentric Compensating Chuck with retractable jaws, Power Operated Hollow High Speed Quick Change Jaw Chuck, Power Operated Hollow High Speed Quick Change Jaw Chuck, GMT Universal Ball Lock Chucks, GMT make Power Operated Hand Indexing Chuck, Power Operated Power Indexing Chucks, Twist Finger Chuck, Diaphragm Chucks, Collect Chuck, Crank Shaft Machining Chuck, Grip down Chuck, Friction Welding Chucks, Knuckle Fixture Chuck, Expanding Mandrel and other custom made chucks. 


Coordinate Measuring Machine : The GMT CMM is the culmination of decades of experience in metrology and machine tools. Our range of CMM's consists of 14 models to suit every inspection need. We also undertake CMM Retrofit, CMM Calibration, CMM Software Upgrade and CMM Contract / Parts Inspection. 

GMT Work Positioning: Indexing Tables: Hydraulic Rotary Indexing Tables, Pneumatic Rotary Indexing Tables, Numerically Controlled Rotary Table.

Machine Tools : Lapping Machine, Planetary Lapping Machine, Belt Grinding Machine, Hydraulic Cylindrical Grinder, Hydraulic Cylindrical Surface Grinding Machine, Tool Turret.

GMT Metrology Division - Cast Iron and Granite Products: GMT Make CI Surface Plate, Angle Plate, Box Angle Plates, Straight Edge, Bench Centre. Granite Surface Plate, Granite Straight Edges, Granite Master Squares, Master Cylinders.

Tuesday, February 11, 2014

Berg - Clamping systems SK-Steep Taper Tooling

Clamping systems SK-Steep Taper Tooling


Depending on the selected clamping set type and the machine requirements complete clamping and chucking systems are available in combination with the various actuation elements.
The following chart is provided for the purpose of allocation and selection. The actuation devices are described and depicted in detail in the specific data sheets. Please contact us for more information for clamping and release systems which are not detailed.
Gripper Clamping cylinder, rotating Multi-energy supply, stationary
Spindle speed nmax. <4000 rpm <15000 rpm > 15000 rpm
Features / Type ESK OHLK OHL SEK SE
Clamping Electrical Hydraulic Hydraulic Mechanic Mechanic
Releasing Electrical Hydraulic Hydraulic Mechanic Mechanic
Spindle bearing relieved
Position control
Compressed air supply
Cooling lubricant supply
Gripper Clamping cylinder, rotating
Spindle speed nmax. > 15 000 rpm
Features / Type HDZ HLZ HLZE
Clamping Mechanic Mechanic Mechanic
Releasing Hydraulic Hydraulic Hydraulic
Spindle bearing relieved
Position control Optional Optional Optional
Cooling lubricant supply Optional Optional Optional