David A. Zapico
Chairman of the Board and Chief Executive Officer at AMETEK
Thank you, Kevin, and good morning, everyone. AMETEK delivered solid results with a strong operating performance in the second quarter against the backdrop of a more subdued global growth environment. In the quarter, we experienced continued headwinds from inventory destocking across our OEM customer base, leading to lower-than-expected sales volumes.
Additionally, we are seeing signs of customers turning more cautious leading to some temporary delays in project spending. Despite these headwinds, our businesses delivered strong operating performance in the quarter, we saw the growth in cash flow and earnings and robust core margin expansion reflecting the strength and flexibility of the AMETEK operating model. We expect the inventory destocking and more cautious customer behavior to continue in the back half of the year. As a result, we are adjusting our outlook for the remainder of the year. We remain confident in our ability to successfully navigate these near-term headwinds.
As we've done in the past, we will expand our focus on operational efficiencies and continue to invest back in our businesses utilize our strong balance sheet to deploy capital on strategic acquisitions and ensure we position AMETEK for continued long-term growth.
Now let me turn to our second quarter financial results. Sales in the quarter -- sales in the second quarter were $1.73 billion, up 5% from the same period in 2023. Organic sales were down 2%. Acquisitions added eight points in the quarter and foreign currency was a slight headwind. AMETEK's operational performance in the quarter was excellent with robust margin expansion. Operating income in the quarter was a record $448 million, 7% increase over the second quarter of 2023.
Operating margins were 25.8% in the quarter, up 40 basis points from the prior year. Excluding the dilutive impact from acquisitions, core margins were up a sizable 180 basis points in the quarter. EBITDA in the quarter was a record $545 million, up 10% over prior year with EBITDA margins in impressive 31.4%. Cash flow in the quarter was excellent, reflecting our operating capability and asset-light business model.
Operating cash flow in the quarter was up 14% to $381 million with free cash flow up 17% and free cash flow conversion of 107%. This operating performance led to earnings of $1.66 per diluted share, up 6% versus the second quarter of 2023 and above our guidance range of $1.63 to $1.65 per share.
Now let me provide some additional details at the operating group level. First, the Electronic Instruments Group. EIG delivered strong operating performance with outstanding margin expansion. EIG sales were $1.15 billion, a 2% increase from the second quarter of last year. Organic sales were flat and acquisitions contributed two points.
Growth was strongest within our aerospace and defense and CAMECA businesses in the quarter. EIG operating income was $350 million, up 14% versus the prior year and operating margins were at 30.3%, up 320 basis points from the prior year.
Our EIG businesses are operating at a very high level with excellent operating margins. They remain well-positioned to benefit from a number of important long-term secular growth drivers, given their increasing exposures to attractive markets across process, aerospace, power and energy markets. The electric mechanical group continues to navigate the impacts of inventory normalization across our automation and engineered solutions businesses.
In the quarter, EMG sales were a record $81 million, a 14% increase compared to the prior year, driven by contributions from the acquisition of Paragon Medical. Organic sales declined 6% due to weakness in our automation and engineered solutions businesses, more than offsetting solid growth across our EMG, aerospace and defense businesses.
Acquisitions contributed 20% in the quarter. Operating income for the second quarter was $123 million with operating margins at 21.2%, while core operating income margins were 25%. As we have noted for a number of quarters, OEM customers across a wide range of markets are reducing excess inventory built up during the supply chain prices. While we had expected to see conditions approved in the second half of year, we now believe demand within this OEM customer base will remain subdued at current levels through the end of 2024.
This inventory normalization is also impacting our medical OEM businesses, including Paragon Medical, leading to near-term delays in orders and shipments. Paragon remains very well-positioned for strong growth once the inventory correction is complete, given their leadership position across a number of high-growth medtech market segments. Additionally, Paragon has won a new programs that we're currently investing in, which will drive incremental growth in 2025 and beyond.
As we noted last quarter, are leveraging our proven integration capabilities to drive meaningful operational improvements to best position Paragon for long-term success. As the volumes return following destocking, we believe the business will be levered to deliver outstanding sales growth and profitability.
In summary, we are operating our businesses very well with 7% growth in operating income and 180 basis points of core margin expansion in the quarter. We continue to generate strong cash flow with 17% free flow growth in the quarter. And for full year, we expect free cash flow to net income conversion be between 110% and 120%. The strength of AMETEK's operational excellence strategy is evident in our operating results.
We continue to drive efficiency improvements across our businesses by leveraging our global infrastructure and opex initiatives. And this year, we now expect to generate $140 million in savings. We also remain committed to investing back into our businesses. And this year, we expect to invest an incremental $90 million in growth, largely focused on research, development and engineering and sales and marketing. The effectiveness of these investments is reflected in our vitality index, which was a strong 24% in the quarter.
Additionally, our strong free cash flow and flexible balance sheet provides us with ample financial capacity for strategic acquisitions. Our pipeline of acquisition opportunities remain strong. AMETEK is very well positioned to continue to expand our portfolio of highly differentiated businesses that both our organic growth investments and our acquisition strategy.
Now, turning to outlook for the remainder of the year. With destocking expected to continue through the balance of the year and some customers turning more cautious on project spending, we are adjusting our sales and earnings guidance for the full year. Overall, sales are now expected to be up 5% to 7% versus the prior year, with organic sales expected to be flat to down low single digits. Diluted earnings per share for the year are now expected to be in the range of $6.70 to $6.80, up 5% to 7% compared to last year's results.
This is less than a 1% reduction from our prior earnings guidance range of $6.74 to $6.86 as our proactive productivity actions, along with a lower expected fourth quarter tax rate helped offset the impact of the reduced sales forecast. This guidance reflects second half sales and operating earnings, essentially in line with our first half results. For the third quarter, we anticipate overall sales to be up mid-single digits, with earnings in the range of $1.60 to $1.62 per share, down 1% to 2% versus the prior year.
In summary, we are pleased with our business's strong operating performance in the second quarter. We have a proven operating model and an experienced management team, and we remain confident in our ability to navigate the sluggish demand environment and deliver exceptional long-term results.
I will now turn it over to Dalip Puri, who will cover some of the financial details of the quarter, then we will be glad to take your questions. Dal?