Mnyororo wa hatua wa eskaleta ni sehemu muhimu inayounganisha na kuendesha hatua za eskaleta. Kwa kawaida hutengenezwa kwa chuma cha aloi chenye nguvu nyingi na huwa na mfululizo wa viungo vya mnyororo vilivyotengenezwa kwa usahihi. Kila kiungo hupitia mchakato maalum wa matibabu ya joto ili kuhakikisha kuwa kina nguvu ya juu sana ya mvutano, upinzani wa uchakavu na upinzani wa uchovu.
Mnyororo wa hatua huunganisha hatua zote za eskaleta na huunda muundo wa pete iliyofungwa. Eskaleta inapoanza, kifaa cha kuendesha huendesha mnyororo wa hatua ili usonge, na hivyo kuvuta hatua ili kuzunguka kwenye njia iliyowekwa tayari ili kutekeleza kazi ya usafirishaji wa abiria.
Tunatoa mfululizo wa hatua za chapa tofauti:
| Mfululizo wa Otis | |||
| Mfano | T135.7 | T133A | T133B |
| Lami | 135.73 | 133.33 | 133.33 |
| Upana wa sahani ya mnyororo wa nje*unene | 28*5 | 40*5 | 30*5 |
| Upana wa ndani wa sahani*unene | 35*5 | 40*5 | 35*5 |
| Gurudumu la kusogeza | Gurudumu la mifupa la 76.2*22 | 70*25-6204 | 70*25-6204 |
| Pini | 12.7 | 14.63 | 14.63 |
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| Mfululizo wa Schindler | ||||||
| Mfano | T135.4D | T135.4 | T135.4A | T133C | T133XA | T133XD |
| Lami | 135.46 | 135.46 | 135.46 | 133.33 | 133.33 | 133.33 |
| Upana wa sahani ya mnyororo wa nje*unene | 26*4 | 30*5 | 30*5 | 40*5 | 29*4 | 50*5 |
| Upana wa ndani wa sahani*unene | 35*3 | 35*5 | 35*5 | 40*5 | 40*3 | 50*5 |
| Gurudumu la kusogeza | 76.2*22 | 76.2*22 | 76.2*22 | 76*25-6204 | 76*25 | 80*25-6206 |
| Pini | 12.7/12.7 | 15/12.7 | 15/15 | 14.63 | 12.67 | 20.00 |
 | ||||||
| Mfululizo wa Thyssen | Mfululizo wa SJEC | |||
| Mfano | T135A | T133JA | C-12V | C-13T |
| Lami | 135 | 133.33 | 68.4 | 68.4 |
| Upana wa sahani ya mnyororo wa nje*unene | 30*5 | 29*4 | 4 | 4.8 |
| Upana wa ndani wa sahani*unene | 35*5 | 40*3 | 4 | 4.8 |
| Gurudumu la kusogeza | 75*23.5-6204 | 70*25-6203 | C-12V | C-13V/LG |
| Pini | Urefu wa pini 14.63 116/118/119.7 | 12.67 | 12.80 | 14.29 |
 | ||||
| Mfululizo wa Kone | |||
| Mfano | 13KV-C | 13RI-A | 10DH-C |
| Lami | 133.33 | 133.33 | 133.33 |
| Upana wa sahani ya mnyororo wa nje*unene | 35*4 | 35*4 | 29*4 |
| Upana wa ndani wa sahani*unene | 35*4 | 35*4 | 40*3 |
| Gurudumu la kusogeza | Gurudumu la mifupa la 75*23.5 linalojitokeza32 | Gurudumu la mifupa la 75*23.5 linalojitokeza32 | Gurudumu la mifupa la 75*23.5 linalojitokeza32 |
| Pini | 12.8 | 12.8 | 12.8 |
 | |||
| Mfululizo wa CANY/SIGMA | ||||||
| Mfano | T133D | T133KA | T133KB | T136.8A | T136.8B | T136.8C |
| Lami | 133.33 | 133.33 | 133.33 | 136.8 | 136.8 | 136.8 |
| Upana wa sahani ya mnyororo wa nje*unene | 35*5 | 40*5 | 30*5 | 40*5 | 40*5 | 30*5 |
| Upana wa ndani wa sahani*unene | 40*5 | 40*5 | 35*5 | 40*5 | 35*5 | 35*5 |
| Gurudumu la kusogeza | 70*25-6204 | 75*25-6204 | 70*25-6204 | 80*22-6204 | 80*22-6204 | 80*22-6204 |
| Pini | 14.63 | 14.63 | 14.63 | 14.63 | 14.63 | 14.63 |
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| Mfululizo wa HYUNDAI | Mfululizo wa HITACHI/MITSUBISHI | |||
| Mfano | S650 | S750 | T67B | T67D |
| Lami | 135.46 | 135.46 | 67.733 | 67.733 |
| Upana wa sahani ya mnyororo wa nje*unene | 40*5 | 33*5 | 4.8 | 4 |
| Upana wa ndani wa sahani*unene | 40*5 | 33*5 | 4.8 | 4 |
| Gurudumu la kusogeza | 76*25-6204 | 76*21.6-6203 | Skipenyo cha nje cha tundu 25mm | Skipenyo cha nje cha tundu 27mm |
| Pini | 14.63 | 12.70 | 14.29 | 14.29 |
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Muda wa chapisho: Machi-31-2025