Rated at 4,300 hp and carrying AC traction motors, looking similar to the SD80 and SD90 in terms of its flared rear radiator grill, the boxy-nosed unit is meant to comply with the EPA’s latest environmental regulations and since its debut in 2005 has been fairly successful with a few hundred of the units built to date.

SD70M使用D90TR型直流牵引电机，搭载二冲程16-710-G3B型柴油机，可提供480 kN的持续牵引力。 2000年之后生产的SD70M型机车，每侧小散热器由2个增加至4个，以实现分体冷却⑷，以及符合美国国家环境保护局Tier 1级铁路机车排放标准。

EMD SD70M; Data Sheet Information Compiled by: R. Craig: New: 19 September 2006: Artwork by: Jean-Denis Bachand-Engine Builder: EMD: Engine: 710G3B/710G3C-T2 16 cylinder

2022年12月29日 · EMDX SD70M-2 demonstrators are early Phase 2a units with some Phase 1 spotting features (air reservoir straps and no notches in dynamic brake intake). As a DC unit, the SD70M-2 does not have inverters but retains the inverter cabinet housing found on the SD70ACe.

SD70M使用D90TR型直流牵引电动机，搭载二冲程16-710-G3B型柴油机，可提供503.10 kN的 持续牵引力 。 2000年之后生产的SD70M型机车，每侧小散热器由2个增加至4个，以实现分体冷却⑻，以及符合美国国家环境保护局Tier 1级铁路机车排放标准。

sd70m-2是sd70ace的直流传动版，几乎与sd70ace相同。 该型车于2005年投产，搭载16-710G3C-T2柴油机，4,300马力（3,200千瓦）。 SD70M-2销量不大，因为这期间主流大型铁路公司都开始采购交流传动车型，所以最终只生产了331台。

The SD70M-2 is the SD70ACe's DC-traction counter-part. Like the SD70ACe, the locomotive was rated at 4,300 hp. NS ordered all of their SD70M-2's at 4,000 hp. Norfolk Southern (NS), Florida East Coast (FEC), and Canadian National (CN) were the only customers to purchase this locomotive new.

SD70M-2 Total Length: 74'-02" Wheel Diameter: 42" Truck Wheel Base: 13'-07" Height to Top Engine Hood: 14'-08.5" Height to Top Cab : 15'-07.5" Cab Width: 10'-03" Top of Walkway: 9'-04.5" Walkway Width: 3'-08.5" Engine Hood Width: 10'-00" Center Bolster: 47'-07" Center Front Truck to Front Pilot: 2'-03"

2024年8月20日 · The radial truck allows the axles to steer in curves which reduces wear on the wheels and railhead. With the introduction of the SD70ACe and SD70M-2 models, EMD introduced a new bolsterless non-radial HTSC truck as the standard truck for these models in an effort to reduce costs. The HTCR-4 radial truck is still an option.

The key difference between the SD70M-2 and the SD70ACe is what’s under the floor: traditional DC traction motors in the SD70M-2’s trucks and AC traction motors in the SD70ACe. While AC traction motors put more tractive effort on the rails and enable an SD70ACe to start a heavier train with the same horsepower, that additional capability ...