The phrase "able to raise only" is correct and usable in written English.
It can be used when specifying a limitation on what can be raised or achieved, often in a context where only a certain amount or type is being discussed.
Example: "The charity event was able to raise only $500, which was far less than expected."
Alternatives: "capable of raising just" or "only able to generate".
So far, Khadir's tribe has been able to raise only 7.5 million Sudanese pounds.
Alas, Rachel was able to raise only $220 — which had left her just a bit disappointed.
By contrast, Mycal was able to raise only ¥50 billion ($390m) of similar loans in the first two months after its collapse.
Big business, frightened at the prospect of electing the populist Bryan, gave more than $7 million to McKinley while Bryan was able to raise only $300,000.
Lawyers for both sides agreed that the Historical Society could buy the property for $100,000, but the society was able to raise only $16,000.
But despite the church being declared a Unesco heritage site in 2012, the Palestinians were able to raise only €2m of the €15m (£12.5m) required for the full renovation of the building.
The views of the latter prevailed since they claimed to be able to raise 5,000 men, while the Scots expected to raise only 700 to 800.
After raising fares 15 times in 2008 to offset record fuel costs, the airlines were able to raise prices only four times in 2009, when the slow economy caused air travel to drop by about 25 percent.
Q. Have retailers been able to raise prices? A. Only luxury goods have pricing power, and we have seen some luxury goods companies raise prices.
These institutions might have been able to raise own funds only by retaining profits, and this channel might have been insufficient to reach the desired level of capital.
Not only are they able to raise awareness but they are given the opportunity to challenge the people around them to take action.
