Chidule cha Sitima ya Sitima
Chitsulo cha njanji, chomwe chimadziwika kuti chitsulo cha njanji, ndi chitsulo chapadera chomwe chimagwiritsidwa ntchito popanga zitsulo makamaka pa njanji za sitima. Njanjiyo imanyamula kulemera ndi katundu wosinthasintha wa sitimayo. Pamwamba pake pamawonongeka, ndipo mutu umakhudzidwa. Njanjiyo imapindika kwambiri. Makina ovuta komanso ntchito yayitali zimawononga njanji.
Kufotokozera kwa Sitima Yopepuka
| Mtundu | Mulifupi wa Mutu (mm) | Kutalika (mm) | M'lifupi mwa Pansi | Kukhuthala kwa intaneti (mm) | Kulemera kwa Chiphunzitso (kg/m2) | Giredi | Utali |
| 8kg | 25 | 65 | 54 | 7 | 8.42 | Q235B | 6M |
| 12kg | 38.1 | 69.85 | 69.85 | 7.54 | 12.2 | Q235B/55Q | 6M |
| 15kg | 42.86 | 79.37 | 79.37 | 8.33 | 15.2 | Q235B/55Q | 8M |
| 18kg | 40 | 90 | 80 | 10 | 18.6 | Q235B/55Q | 8-9M |
| 22kg | 50.8 | 93.66 | 93.66 | 10.72 | 22.3 | Q235B/55Q | 7-8-10M |
| 24kg | 51 | 107 | 92 | 10.9 | 24.46 | Q235B/55Q | 8-10M |
| 30kg | 60.33 | 107.95 | 107.95 | 12.3 | 30.1 | Q235B/55Q | 10M |
Kufotokozera kwa Sitima Yaikulu
| Mulifupi wa Mutu (mm) | Kutalika (mm) | M'lifupi mwa Pansi | Kukhuthala kwa intaneti (mm) | Kulemera kwa Chiphunzitso (kg/m2) | Giredi | Utali | |
| P38 | 68 | 134 | 114 | 13 | 38.73 | 45MN/71MN | |
| P43 | 70 | 140 | 114 | 14.5 | 44.653 | 45MN/71MN | 12.5M |
| P50 | 70 | 152 | 132 | 15.5 | 51.51 | 45MN/71MN | 12.5M |
| P60 | 73 | 176 | 150 | 16.5 | 60.64 | U71MN | 25M |
Kufotokozera kwa Sitima ya Crane
Ntchito ya Sitima Yachitsulo
-a. Mawilo othandizira otsogolera
-b. Amapereka mphamvu zochepa zotsutsana ndi mawilo
-c. Kulumikizana mmwamba ndi pansi, kutumiza mphamvu kwa ogona
-dMonga kondakitala-njira yoyendera









