USED HAAS ST40

The Haas ST-40 is a large CNC turning center built to deliver robust performance, flexibility, and reliability for heavy, medium-to-large part machining. As part of Haas Automation’s ST Series, this machine extends the capabilities of standard lathes by combining substantial turning capacity with exceptional rigidity and accuracy. Its large bed, powerful spindle, and advanced control system make the ST-40 suitable for diverse industries, including automotive, aerospace, energy, oil & gas, and general engineering.

Designed to handle larger workpieces with higher material removal rates, the ST-40 features a heavy-duty cast base and precision guideways that support consistent dimensional stability even under heavy cutting loads. The Haas CNC control is intuitive, with conversational programming, full G-code support, and seamless integration with probing and automation features. This allows operators to program parts quickly and efficiently, reducing setup time and improving workflow.

The ST-40 offers flexible tooling options, enabling users to equip live tooling and milling packages that allow part machining without secondary operations. Whether performing simple turning, threading, and grooving or producing complex, multi-feature components, the ST-40 delivers dependable performance with high throughput. Its combination of strength, easy operation, and large work envelope makes it a cornerstone machine for production shops aiming to expand capacity and precision without elevating cost of ownership.

HAAS ST40 SPECIFICATIONS

WHY BUY USED HAAS ST40

Buying a used Haas ST-40 can be a highly cost-effective strategy for shops seeking to add heavy turning capability without the expense of new capital equipment. CNC machines typically see the greatest depreciation within their first few years, meaning that a carefully selected used ST-40 can deliver excellent performance at a fraction of the price of a new machine. The ST-40’s robust mechanical design — including a cast base and precision guideways — is built to withstand demanding production environments, ensuring longevity even with higher accumulated operating hours.

One of the biggest advantages of purchasing a used ST-40 is the widespread availability of parts, service, and operator familiarity due to Haas’s extensive global footprint. Spare components, tooling systems, and technical support are easier to source compared with less common brands, reducing long-term maintenance risk and downtime. Many used machines also come with added accessories such as chip conveyors, coolant upgrades, probing systems, or live tooling packages that further enhance capability and value.

A used ST-40 can be quickly integrated into existing workflows and supports various automation options — including bar feeders and robotic part loaders — enabling increased throughput and reduced labor costs. For shops focused on expanding capacity, adding lights-out machining, or taking on larger, higher-mix work, a used ST-40 represents a solid balance of cost savings and productive capability.

HOW MUCH DOES A USED HAAS ST40 COST?

The cost of a used Haas ST-40 varies based on age, hours, condition, optional features, and regional market demand. As a larger turning center with broad industrial use, the ST-40 can range widely in price, offering options to fit multiple budgets. Older machines from earlier builds with higher operating hours and standard configurations — typically without live tooling or advanced accessories — commonly list in the $50,000 to $85,000 USD range. These units remain attractive for shops willing to refurbish or add tooling on their own schedule.

Mid-range used ST-40s — generally under 10–12 years old with moderate hours and useful options like chip conveyors, probing systems, or high-pressure coolant — can sell for $85,000 to $130,000 USD. These machines often represent the best value proposition, offering plenty of life left and ready-to-run capability right off the trailer.

Low-hour or late-model units with full option packages, including live tooling, automation packages, and updated Haas control retrofits, may command $130,000 to $170,000+ USD, especially in markets where used Haas turning centers are in high demand. Prices also vary internationally, with regions such as North America and Western Europe often seeing stronger price retention.

Ultimately, individual pricing should be evaluated alongside machine inspection, service history, included tooling or accessories, and the cost of transport, rigging, and installation to determine total investment and value.