| Coalfield Express | |
| Type: | Superfast |
| Status: | Active |
| Locale: | West Bengal & Jharkhand |
| Operator: | Eastern Railway |
| Start: | (HWH) |
| Stops: | 11 |
| End: | (DHN) |
| Distance: | 260km (160miles) |
| Journeytime: | 04 hours 35 minutes |
| Frequency: | Daily |
| Class: | AC Chair Car, Non-AC Chair Car & General Unreserved |
| Seating: | Yes |
| Sleeping: | No |
| Catering: | On-board catering, E-catering |
| Observation: | Large windows |
| Baggage: | Available |
| Stock: | LHB coach |
| Trainnumber: | 12339 / 12340 |
| Speed: | 57km/h average with halts,130km/h maximum speed. |
| Maintenance: | Howrah Division, Eastern Railway |
12339 / 12340 Howrah – Dhanbad Coalfield Express is a daily superfast train that connects the major coal and industrial city of Dhanbad, Jharkhand with the adjoining coal and industrial cities of Asansol, RaniGanj, Andal, Waria, and Durgapur with the capital city of West Bengal, Kolkata. This train is also known as the twin / sister train of the Dhanbad - Howrah Black Diamond Express.[1]
The 12339 Howrah – Dhanbad Coalfield Express departs from Howrah at 17:20 hrs and arrives in Dhanbad at 21:55 hrs, covering the distance of 259 km in 4 hrs 35 min, with an average speed of 56 km / hr and maximum speed of 130 km / hr. On its return journey, the 12340 Coalfield Express departs from Dhanbad at 05:50 hrs and arrives in Howrah at 10:25 hrs; covering the distance in 4 hrs 35 min with an average speed of 56 km / hr.[2]
The train consists of modern LHB coaches: two AC Chair Car coaches (C1 and C2), four Non-AC Chair Car coaches (D1 to D4), nine Unreserved General coaches (UR), one Ladies Unreserved General coach (LDS-UR) one Sitting cum Luggage Rake coach (SLR) and one End on Generation (EOG) / Power car.[3]
The train shares its rake with the following trains:
It is hauled by a Howrah Loco Shed based WAP-7 electric locomotive on its entire journey.