It’s not a case of “either/or”, it’s a case of “and”: the ATF 70G-4 is now available with a longer main boom – and two engines.

Along with being revised to comply with Euromot 4/Tier 4f, the world-proven, famously ultra- reliable ATF 70G-4 has undergone a comprehensive general upgrade. First and foremost: its main boom – customers can now choose between a 52.1 m and a 44 m main boom.

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Even with a 52.1 m main boom, the ATF 70G-4 remains true to its “taxi concept” and is impressively quick to move into action, whether with 10 t or 12 t maximum axle load. With a total weight of 40 t and 10 t per axle, the crane can carry along no less than 3.4 t of counterweight, its 16 m boom extension, a 32 t hook, and a toolbox – equipping it superbly for its work. Where up to 12 t per axle is allowed, it can even transport 11 t of counterweight. The counterweight has been divided up more finely in order to equip the crane better for different countries’ varying axle load regulations, thus giving crane owners even more flexibility. Crane drivers can of course equip the crane with less than 12 t per axle if required, which allows more auxiliary equipment to be brought along for crane operations.

Despite the longer main boom and the higher weight associated with it, the design engineers in Lauf succeeded in incorporating a second 175 HP superstructure engine. This makes TADANO the only crane manufacturer to employ two engines consistently from the 70 t class upwards. TADANO explains this decision on the basis of benefits for customers: performance-adapted superstructure engines consume much less fuel during crane operation than big undercarriage engines. According to TADANO, crane owners talk of average fuel savings of 4 to 5 liters per hour.

All in all, according to Development Manager Dr. Bernward Welschof, the ATF 70G-4 was revised in several hundred aspects, making the crane more powerful, reliable, and user-friendly. “For example, we opted for new weight-reduced disc brakes in order to achieve our ambitious performance specifications within the axle load limits. Many of the improvements have been a result of asking our customers over a long period of time, and they have made the product altogether much better. Test-drive it and you’ll agree.”

The new engines comply with the new Euromot 4/Tier 4f exhaust standard, and according to the manufacturer they can boast 90% less particle emissions than Euromot 3a/Tier 3 engines – just like their predecessors. But what is new about them is that they now reduce the level of poisonous nitric oxides by around 80%. That means you can use the crane even on construction sites subject to stringent environmental regulations. Furthermore, according to Mercedes-Benz, the new Euromot 4/Tier 4f engines use as much as 5% less fuel than their predecessors.