| Class | Max No. of class | Loco Nos. |
| 1906 - U Class (Tram) (ex NMETL) |
10 | U 202 - U 211 |
| 1906 - V Class (Tram) (ex NMETL) |
5 | V 212 - V 216 |
| 1910 - A Class (Tram) (ex PMTT) |
20 | 1 - 20, A 1 - A 20 |
| 1912 - F Class (Tram) (ex PMTT) |
2 | 46 - 47, F 46 - F 47 |
| 1912 - O Class (Tram) (ex PMTT/HTT) |
4 | 127 - 130, O 127 - O 130 |
| 1913 - C Class (Tram) (ex PMTT) |
11 | 25 - 35, C 25 - C 35 |
| 1913 - G Class (Tram) (ex PMTT) |
6 | 48 - 53, G 48 - G 53 |
| 1913 - H Class (Tram) (ex PMTT) |
10 | 54 - 63, H 54 - H 63 |
| 1914 - E Class (Tram) (ex PMTT) |
10 | 37 - 45, E 36 - E 45 |
| 1915 - D Class (Tram) (ex PMTT) |
1 | 36, D 36 |
| 1915 - J Class (Tram) (ex PMTT) |
20 | 64 - 83, J 64 - J 83 |
| 1916 - M Class (Tram) (ex HTT/FTT) |
17 | 107 - 116, M 107 - M 116, M 183 - M 189 |
| 1916 - N Class (Tram) (ex HTT) |
10 | 117 - 126, N 117 - N 126 |
| 1916 - S / S1 Class (Tram) (ex MBCTT) | 19 | 1C - 12C, 19C - 21C, 23P, (24P), 139, S 154 - S 171, S1 166 - S1 171 |
| 1917 - B Class (Tram) (ex PMTT) |
12 | 21 - 24, 84 - 91, B 21 - B 24, B 84 - B 91 |
| 1917 - P Class (Tram) (ex HTT) |
8 | 131 - 138, P 131 - P 138 |
| 1917 - T Class (Tram) (ex MBCTT) | 6 | 13C - 18C, T 177 - T 182 |
| 1919 - K Class (Tram) (ex PMTT) |
9 | 92 - 100, K 92 - K 100 |
| 1920 - R Class (Tram) (ex FNPTT) |
8 | 2P - 3P, 7P, 25P - 29P, 151 - 152, R 151 - R 153, R 172 - R 176 |
| 1921 - L Class (Tram) (ex PMTT) |
6 | 101 - 106, L 101 - L 106 |
| 1922 - Q Class (Tram) | 24 | Q 139 - Q 150, Q 190 - Q 201 |
| 1923 - W Class (Tram) | 200 | W 219 - W 418 |
| 1924 - X Class (Tram) | 2 | X 217 - X 218 |
| 1925 - W1 Class (Tram) | 30 | W1 364, W1 419 - W1 438, W1 470 - W1 479 |
| 1926 - X1 Class (Tram) | 10 | X1 459 - X1 468 |
| 1927 - W2 Class (Tram) | 406 | W2 219 - W2 425, W2 427 - W2 431, W2 433 - W2 435, W2 437 - W2 458, W2 470 - W2 477, W2 479 - W2 609, W2 624 - W2 653 |
| 1927 - Y Class (Tram) | 1 | Y 469 |
| 1930 - W3 Class (Tram) | 16 | W3 654 - W3 669 |
| 1930 - X2 Class (Tram) | 6 | X2 674 - X2 680 |
| 1930 - Y1 Class (Tram) | 6 | Y1 610 - Y1 613 |
| 1933 - W4 Class (Tram) | 5 | W4 670 - W4 674 |
| 1934 - CW5 Class (Tram) | 5 | CW5 681 - CW5 685 |
| 1935 - W5 Class (Tram) | 125 | W5 681 - W5 685, W5 720 - W5 839 |
| 1938 - SW2 Class (Tram) | 6 | SW2 275, SW2 426, SW2 432, SW2 436, SW2 478, SW2 644 |
| 1939 - SW5 Class (Tram) | 70 | SW5 681 - SW5 682, SW5 721 - SW5 722, SW5 724 - SW5 727, SW5 731 - SW5 732, SW5 738 - SW5 742, SW5 744 - SW5 747, SW5 749, SW5 752, SW5 754, SW5 758, SW5 760, SW5 764, SW5 767, SW5 769 - SW5 770, SW5 773, SW5 775, SW5 777, SW5 785 - SW5 790, SW5 793, SW5 796 - SW5 797, SW5 800, SW5 802, SW5 805 - SW5 812, SW5 815, SW5 818 - SW5 819, SW5 824, SW5 829 - SW5 830, SW5 834, SW5 836 - SW5 838, SW5 840 - SW5 849 |
| 1939 - SW6 Class (Tram) | 120 | SW6 850 - SW6 969 |
| 1950 - PCC Class (Tram) | 2 | 980, 1041 |
| 1951 - W6 Class (Tram) | 30 | W6 970 - W6 979, W6 981 - W6 1000 |
| 1955 - W7 Class (Tram) | 40 | W7 1001 - W7 1040 |
| 1959 - VR Class (Tram) | 3 | 52 - 54, 700 |