Chidule cha Sitima ya Sitima
Sitima yapamtunda ndi gawo lofunika kwambiri pa njanji yapamtunda, ndipo ntchito yake ndikuwongolera mawilo a sitima akuyenda patsogolo popirira kupsinjika kwakukulu komwe kumakankhidwa ndi mawilo. Sitima yachitsulo iyenera kupereka malo osalala, okhazikika komanso osasunthika ozungulira mawilo a sitima omwe amadutsa. Mu gawo la njanji yamagetsi kapena gawo la block yodziyimira yokha, njanji yapamtunda ingagwiritsidwenso ntchito ngati njira yoyendera njanji.
Ma njanji amakono amagwiritsa ntchito chitsulo chotenthedwa, ndipo zolakwika zazing'ono mu chitsulocho zitha kukhala zoopsa pa chitetezo cha sitima ndi sitima yodutsa. Chifukwa chake njanji ziyenera kuyesedwa bwino kwambiri ndikukwaniritsa muyezo waubwino. Ma njanji achitsulo ayenera kukhala okhoza kupsinjika kwambiri komanso kupirira kutsata. Sitima yachitsulo iyenera kukhala yopanda ming'alu yamkati ndipo ikhale yolimba kutopa ndi kutopa.
Sitima Yopepuka Yachi China
| Muyezo: GB11264-89 | ||||||
| Kukula | Mulingo (mm) | Kulemera (kg/m2) | Utali(m) | |||
| Mutu | Kutalika | Pansi | Kukhuthala | |||
| GB6KG | 25.4 | 50.8 | 50.8 | 4.76 | 5.98 | 6-12 |
| GB9KG | 32.1 | 63.5 | 63.5 | 5.9 | 8.94 | |
| GB12KG | 38.1 | 69.85 | 69.85 | 7.54 | 12.2 | |
| GB15KG | 42.86 | 79.37 | 79.37 | 8.33 | 15.2 | |
| GB22KG | 50.3 | 93.66 | 93.66 | 10.72 | 23.3 | |
| GB30KG | 60.33 | 107.95 | 107.95 | 12.3 | 30.1 | |
| Muyezo: YB222-63 | ||||||
| 8KG | 25 | 65 | 54 | 7 | 8.42 | 6-12 |
| 18KG | 40 | 90 | 80 | 10 | 18.06 | |
| 24KG | 51 | 107 | 92 | 10.9 | 24.46 | |
Sitima Yolemera Yachikhalidwe Yachi China
| Muyezo: GB2585-2007 | ||||||
| Kukula | Mulingo (mm) | Kulemera (kg/m2) | Utali(m) | |||
| Mutu | Kutalika | Pansi | Kukhuthala | |||
| P38KG | 68 | 134 | 114 | 13 | 38.733 | 12.5-25 |
| P43KG | 70 | 140 | 114 | 14.5 | 44.653 | |
| P50KG | 70 | 152 | 132 | 15.5 | 51.514 | |
| P60KG | 73 | 170 | 150 | 16.5 | 61.64 | |
Sitima Yapamtunda ya Crane Yachi China
| Muyezo: YB/T5055-93 | ||||||
| Kukula | Mulingo (mm) | Kulemera (kg/m2) | Utali(m) | |||
| Mutu | Kutalika | Pansi | Kukhuthala | |||
| QU 70 | 70 | 120 | 120 | 28 | 52.8 | 12 |
| QU 80 | 80 | 130 | 130 | 32 | 63.69 | |
| QU 100 | 100 | 150 | 150 | 38 | 88.96 | |
| QU 120 | 120 | 170 | 170 | 44 | 118.1 | |
Monga katswiri wopereka zomangira njanji, JINDALAI STEEL imatha kupereka njanji zachitsulo zosiyanasiyana monga American, BS, UIC, DIN, JIS, Australia ndi South Africa zomwe zimagwiritsidwa ntchito pa njanji, ma cranes ndi migodi ya malasha.









