Maryland Metrics offers high quality step chains and drag chains of high quality alloy steel for escalators. Products have been adopted by famous escalator manufacturers like Schindler in China. We only supply quality parts which are of the same quality level as genuine spare parts. OEM inquiries are welcome.
| Chain No. | Pitch | Roller Dia. | Width between Inner Plates | Pin Dia. | Inner Dia. of Bush | Height of Inner Plates | Min. Breaking Load |
| mm | kgf | ||||||
| T67 | 63.733 | 28 | 25.4 | 14.27 | 21 | 46 | 9000 |
| T67G | 63.733 | 28 | 25.4 | 14.27 | 21 | 46 | 15000 |
| T68 | 38.40 | 32 | 20.7 | 14.29 | 23.5 | 45.4 | 13000 |
| T133 | 133.33 | 70 | 27.1 | 14.63 | - | - | 10200 |
| T133G | 133.33 | 70 | 27.1 | 14.63 | - | - | 18360 |
| T133Z | 133.33 | 80 | 27.1 | 24.0 | - | - | 23465 |
| T135.4 | 135.47 | 76.2 | 24.0 | 15.0 | - | - | 9184 |
| T135.4G | 135.47 | 76.2 | 24.0 | 15.0 | - | - | 15300 |
| T135.6 | 135.73 | 76.2 | 23.4 | 12.7 | - | - | 9360 |
| T135.6G | 135.73 | 76.4 | 23.4 | 12.7 | - | - | 12320 |
| T100 | 100 | 52 | 27.5 | 30 | 20 | 70.5 | 15300 |
| T100G | 100 | 52 | 27.5 | 30 | 20 | 70.5 | 25500 |
| ZF1.4 | 134 | 80 | 42 | 50 | 33 | 112 | 58000 |
| DF1.4 | 134 | 80 | 52 | 50 | 33 | 128 | 97000 |
| 16S-1 | 25.40 | 15.87 | 15.88 | 7.92 | - | 24.13 | 5670 |
| 16S-2 | 25.40 | 15.87 | 15.88 | 7.92 | - | 24.13 | 11340 |
| 20S-1 | 31.75 | 19.05 | 19.05 | 9.52 | - | 30.18 | 8860 |
| 20S-2 | 31.75 | 19.05 | 19.05 | 9.52 | - | 30.18 | 17720 |
| 24S-1 | 38.10 | 22.22 | 25.40 | 11.10 | - | 36.20 | 12760 |
| 24S-2 | 38.10 | 22.22 | 25.40 | 11.10 | - | 36.20 | 25520 |