Mine parachutes
Mine parachutes are designed to hold and smoothly stop stands and counterweights in case of head rope or suspension device breakage. Depending on the application, a distinction is made:
– PTCA for stands with two brake ropes to be grasped
– PTCPA for counterweights of stands with two brake ropes gripping.
– PCLA for vertical and inclined hoist stands with one brake rope grip
– PCLSA for vertical and inclined hoist stands with friction pulleys with one brake rope grip
– PTCSA for hoist stands with friction pulleys with two brake ropes.
| Parachute size | Static load, kN, not more | Diameter of brake rope for wedge clamps, mm | Distance between axes of wedge clamps of brake ropes, mm | Weight, kg, not more |
|---|---|---|---|---|
| PTCA 6,3 | 63 | 25,5 | 1150; 1200; 1480 | 1300 |
| PTCA 12,5 | 125 | 30,5 | 1015; 1150; 1200; 1350; 1480; 1540; 1630; 1680; 1730 | 1580 |
| PTCA 20 | 200 | 35,0 | 980;1150;1200;1350;1540;1630;1680;1730;1870 | 2710 |
| PTCA 25 | 250 | 40,0 | 980;1150;1200;1350;1540;1630;1680;1730;1870 | 2845 |
| PTCA 30 | 300 | 45,5 | 1040;1080;1150;1500;1630;1780;1870 | 3050 |
| PTCPA 6,3 | От 20 до 36,5 | От 800 до 1730 | 1613 | |
| PTCPA 12,5 | 125 | От 27 до 46,5 | От 900 до 1730 | 1682 |
| PTCPA 16 | 160 | От 33 до 58,5 | От 800 до 1630 | 1812 |
| PTCSA 20 | 200 | 35,0 | 950;1540 | 7523 |
| PTCSA 25 | 250 | 40,0 | 1540;1630;1870 | 7746 |
| PTCSA 30 | 300 | 45,0 | 1040;1080;1150;1500;1630;1870 | 7975 |
| PCLA 6,3 | 63 | 35,0 | 495;555;735 | 1140 |
| PCLA 12,5 | 125 | 40,0 | 500;555;735;780 | 1840 |
| PCLA 20 | 200 | 50,5 | 500;555;735;780 | 2220 |
| PCLA 30 | 300 | 56,0 | 555;735;780 | 2420 |
| PCLSA 20 | 200 | 50,5 | 500;555;735;780 | 6990 |
| PCLSA 30 | 300 | 56,0 | 530;545;555;585;670;735;780 | 7190 |