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| TECHNICAL SPECIFICATIONS |
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| MODEL |
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HL 300/150 |
HL 500/150-U |
HL 800/150-U |
HL 1000/200 |
HL 1250/200 |
HL 1500/200 |
| Centre height |
mm |
150 |
150 |
150 |
200 |
200 |
200 |
| Max.grinding length |
mm |
300 |
500 |
800 |
1000 |
1250 |
1500 |
| Max.swivel of table |
deg |
+ 8 |
+ 8 |
+ 8 |
+ 7 |
+ 6 |
+ 5 |
| Table speed infinitely variable |
m/min |
0.1 - 4 |
0.1 - 4 |
0.1 - 4 |
0.1 - 4 |
0.1 - 4 |
0.1 - 4 |
| Dwell at reversals |
sec |
0 - 60 |
0 - 60 |
0 - 60 |
0 - 60 |
0 - 60 |
0 - 60 |
Grinding Wheel
(d x w) |
mm |
300 x 25 |
350 x 40 |
350 x 40 |
400 x 40 |
400 x 40 |
500 x 40 |
| Wheel head rapid approach |
mm |
50 |
50 |
50 |
50 |
50 |
50 |
| Wheel head swivel |
deg |
- |
+ 60 |
+ 60 |
- |
- |
- |
| No. of work head speeds |
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4 |
4 |
4 |
8 |
8 |
8 |
| Work head swivel |
deg |
+ 90 |
+ 90 |
+ 90 |
+ 90 |
+ 90 |
+ 90 |
| Work head centre |
MT |
4 |
4 |
4 |
4 |
4 |
4 |
| Tail stock centre |
MT |
3 |
3 |
3 |
4 |
4 |
4 |
| Internal Grinding Spindle (Optional) |
mm |
60 x 250 |
60 x 250 |
60 x 250 |
80 x 250 |
80 x 250 |
80 x 250 |
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| SALIENT FEATURES |
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| MACHINE BED |
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Box structure design with adequate ribs provides high rigidity and stability. |
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| MACHINE GUIDEWAYS |
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The work head table as well as
grinding wheel head slideways are coated with “TURCITE-B” linear bearing material which gives stick slip free movements, excellent vibration damping and high repetitive positioning accuracy. |
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Continuous automatic lubrication system provided for guideways. Centralized lubrication system is also provided, for efficient and positive lubrication of other moving parts. |
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| WORK HEAD |
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Work head spindle can be locked for grinding between centres or it can be rotated with the driving plate to carry work holding fixtures like collet, face plate or chuck. |
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| WHEEL HEAD |
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Wheel head spindle is made of special alloy steel, specially heat treated, ground and lapped to achieve high dimensional stability and long life. |
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Spindle runs in precision White Metal Bush Bearings, which give very high accuracy and excellent surface finish to the work piece. |
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| INFEED SYSTEM |
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In-feed system comprises of hardened and ground feed screw, which ensures high positioning accuracy and repeatability. |
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Specially designed nut having backlash adjustment is provided. |
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Automatic in-feed at table reversal. |
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| TAIL STOCK |
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Tailstock is of single piece construction for maximum rigidity. |
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Hydraulic actuation of Tailstock can be offered as optional. |
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| AUTOMATIC GRINDING CYCLE (Optional) |
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Single lever Automatic Plunge and Traverse grinding cycles. |
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Cycle operates as Work head & Coolant ON – Rapid approach – Auto feed – Spark off – Rapid retraction and in-feed hand wheel to starting position – Work head & Coolant OFF. |
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Amount of infeed, infeed rate and spark off time are adjustable. |
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| DWELL |
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Electronic dwelling arrangement provided for effective End grinding operation. |
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Separate timers for left and right ends. |
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| INTERNAL GRINDING ATTACHMENT (Optional) |
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Internal grinding attachment with its independent drive motor is hinged on the wheel head and can quickly lowered into grinding position. |
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Variety of Internal Grinding spindles can be offered. |
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| HYDRAULICS |
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Hydraulic power pack with solenoid valves is housed outside the machine. |
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Extremely good thermal stability is achieved in the machine by isolating the hydraulic unit. |
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| ELECTRICALS |
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Electrical/Electronic controls are contained in separate control cabinet, outside the machine, making it moisture proof and provides easy maintenance. |
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| OPTIONAL |
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Stepless variable workspeed. |
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200 mm centre height in lieu of 150 mm. |
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In-Process Guage. |
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| RANGE OF OTHER MACHINES |
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