SN 71 C draaimachine
Merk : TOS Trens
Type : SN 71 C
Ø 710 mm, l = 1500 - 4000 mm
Productomschrijving
SN 71 C is a customer classic. Output of its main motor is 7.5 kW. It's unique design and quality guarantee high stability at material machining. Spindle bore of this universal centre lathe is 73.5 mm and it is characterised by wide range of operating speed. Its major advantage represents a possibility of machining big pieces of material.
Technical parametres
Working range
| Swing over bed | 710 mm | 27,95 inch |
| Swing over cross slide | 420 mm | 16,54 inch |
| Swing of the bed gap | 960 mm | 37,80 inch |
| Useful length of the bed gap | 300 mm | 11,81 inch |
| Distance between centres | 1500, 2000, 3000, 4000 mm | 59,06/ 78,74/ 118,11/ 157,48 inch |
| Height of centres over bed | 355 mm | 13,98 inch |
Spindle
| Speed range | 10 - 1000 min -1 | 10 - 1000 rpm |
| Spindle front nose | STN ISO 702/III - B8 | STN ISO 702/II – C8 |
| Bore | 73,5 mm | 2,89 inch |
| Internal taper | metric 80 | metric 80 |
| Max. torque/limiting speed | 2400/20 Nm/min -1 | 1736/ 45 lbf/rpm |
Carriages
| Cross slide working travel | 400 mm | 15,75 inch |
| Tool slide working travel | 180 mm | 7,09 inch |
| Max. tool size | 40 x 25 mm | 1,57x1 inch |
| Traverse feed number | 38 | 38 |
| Working range of longitudinal feed | 0,05 - 6,4 mm.rev -1 | 0,002 – 0,25 inch/rev |
| Working range of cross feed | 0,025 - 3,2 mm.rev -1 | 0,001 – 0,126 inch/rev |
| Longitudinal rapid traverse | 3000 mm.min -1 | 118,11 ipm |
| Cross rapid traverse | 1500 mm.min -1 | 59,06 ipm |
Tailstock
| Tailstock sleeve diameter | 90 mm | 3,54 inch |
| Tailstock sleeve travel | 240 mm | 9,45 inch |
| Tailstock sleeve internal taper | MORSE 5 | No. 5 MT |
| Cross resetting | ±10 mm | ±0.39 inch |
Threads
| Metric threads | - number | 29 | 29 |
| - range | 0,5 - 40 mm | 0,02 - 1,57 inch | |
| Whitworth threads | - number | 38 | 38 |
| - range | 1 - 80 rev./1" | 1 - 80 threads/inch | |
| Modular threads | - number | 26 | 26 |
| - range | 0,25 - 20 mm | 0,01 - 0,79 inch | |
| Thread Diametral Pitch | - number | 31 | 31 |
| - number of DP thread | 2 - 72 | 2 - 72 |
Power drives
| Total power input | 8,9 kVA | 8,9 kVA |
| Supply voltage | 3 x 400 V ± 10% | 3 x 400 V ± 10% |
| Motor output: | ||
| - main drive | 7,5 kW | 10,06 HP |
| - coolant pump | 0,09 kW | 0,12 HP |
| - rapid traverse | 0,94 kW | 1,26 HP |
Work piece weight
| Max. work piece weight clamped between centres | 1500 kg | 3306,93 lbs |
| Max. work piece weight, clamped in the chuck | 80 kg | 176,37 lbs |
Dimensions
| Width x Height | 1400x1560 mm | 55,1 x 61,4 inch |
| Length for DBC 1500,2000,3000,4000 | 3600, 4100, 5100,6100 mm | 141,73/ 161,42/ 200,79/ 240,16 inch |
Weight
| Length for DBC 1500, 2000, 3000, 4000 | 2960, 3080, 3330, 3580 kg | 6525,68/ 6790,24/ 7341,39/7892,55 lbs |
