The Haas ST-45S is a large-format CNC turning center built for manufacturers who need a powerful, reliable, and versatile lathe for medium-to-heavy duty turning applications. Part of Haas Automation’s ST Series — one of the most widely recognized and deployed CNC lathe platforms in the world — the ST-45S combines rugged mechanical construction with intuitive control features. The “S” designation indicates a standard configuration that focuses on core turning functionality, offering a balance of size, power, and cost-effective performance.
Structurally, the ST-45S is engineered with a heavy cast iron base and precision box-way guideways that provide excellent rigidity and vibration resistance, even under heavy cutting loads. Its large travel envelope accommodates substantial part diameters and lengths, making it particularly suited for automotive shafts, heavy housings, large sleeves, industrial components, and structural parts requiring deep cuts and tight tolerances. The machine’s high-torque spindle ensures strong cutting performance across a range of materials, including steel, aluminum, and high-strength alloys.
The Haas CNC control system enhances usability with conversational programming, full G-code support, USB/Ethernet connectivity, and advanced features such as rigid tapping and customizable macros. Optional features — such as chip conveyors, high-pressure coolant, probing systems, live tooling, and automation interfaces — allow shops to tailor the ST-45S to varied production needs. Whether deployed in dedicated production cells or flexible job-shop environments, the ST-45S delivers dependable performance with excellent throughput and reliability.
HAAS ST45SSPECIFICATIONS
TRAVEL & CAPACITY
Max Turning Diameter: ~1,016–1,067 mm (40–42 in)
Max Turning Length: ~1,220–1,829 mm (48–72 in)
Chuck Size: Typically 12″ or 15″
Max Bar Capacity: ~Ø152–Ø203 mm (6–8 in)
SPINDLE
Spindle Speed: ~2,500–3,000 rpm
Spindle Power: ~30–45 kW (40–60 hp)
Spindle Torque: High torque for heavy cuts
Drive Type: Direct/gear driven
TOOLING / TURRET
Turret Stations: ~12–20
Live Tooling: Optional
Tool Indexing: Servo driven
FEEDRATES
Rapid Traverse (X/Z): ~20–30 m/min
Cutting Feedrate: Programmable
COOLANT & CHIP HANDLING
Flood Coolant: Standard
High-Pressure Coolant: Optional
Chip Conveyor: Optional
CONTROL SYSTEM
Haas CNC Control
Conversational & G-code programming
USB/Ethernet connectivity
POWER & AIR REQUIREMENTS
Electrical Power: ~30–50 kVA
Air Requirement: ~0.5 MPa (~75 psi)
HAAS ST-45S – GENERAL INFORMATION
Model: Haas ST-45S
Machine Type: CNC Turning Center
Control: Haas CNC Control (Next Gen or Classic)
Construction: Heavy cast base with box ways
Application: Large turning, threading, grooving
HAAS ST-45S – KEY CAPABILITIES
Large turning capacity with high torque
Rigid box-way construction for accuracy
Intuitive Haas control with conversational/G-code
Optional automation and probing support
Optional coolant and chip handling
INDUSTRIES THAT USE HAAS ST-45S
Automotive (shafts, hubs, sleeves)
Aerospace (structural components)
Oil & Gas (valve bodies, flanges)
Energy & Power Generation (rotor parts)
Heavy machinery and contract manufacturing
TYPICAL PARTS HAAS ST-45S CAN PRODUCE
Large housings
Long shafts and spindles
Precision sleeves and collars
Heavy-duty rotational parts
Flanged components
WHY BUY USED HAAS ST45S
Purchasing a used Haas ST-45S is often a smart choice for shops looking to add large turning capacity without the substantial upfront cost of a new machine. Like most CNC equipment, the largest portion of depreciation typically occurs in the first few years of ownership. This means that a well-maintained used ST-45S can be acquired for a fraction of the price of new, yet still deliver many years of reliable performance.
One key advantage of choosing a Haas machine is the brand’s global support footprint. Haas Automation has a vast service network, extensive availability of spare parts, and a very large user base, which collectively reduce maintenance challenges and keep downtime low. Many operators are already familiar with the Haas control interface, which simplifies programming and helps minimize onboarding time when integrating a used unit into production.
Because the ST-45S is designed for heavy cuts and large parts, it offers flexibility across a wide range of industries — from automotive and aerospace to energy, oil & gas, and heavy machinery. A used ST-45S can handle deep cuts, long spans, and larger diameters while maintaining good surface finish and consistent part quality. When paired with automation options such as chip conveyors, bar feeders, or robotic handling systems, a used ST-45S can support higher production throughput, lights-out manufacturing, and improved shop efficiency. For many contract manufacturers and job shops, a used ST-45S delivers a strong return on investment.
HOW MUCH DOES A USED HAAS ST45SCOST?
The price of a used Haas ST-45S varies according to age, spindle hours, configuration, condition, and local market demand. Because the ST-45S is one of Haas’s larger turning centers, used pricing tends to be higher than smaller lathes such as the ST-30 or ST-35. Older units that have accumulated significant hours but remain mechanically sound typically list in the $50,000 to $85,000 USD range. These machines often require minor servicing or upgrades but still offer substantial turning capacity for large parts.
Used ST-45S machines in the mid-range — generally under 10–12 years old with moderate usage, clean mechanical condition, and useful options such as chip conveyors, high-pressure coolant systems, or updated CNC controls — commonly trade between $85,000 and $130,000 USD. These units frequently represent strong value, allowing shops to add large turning capability with minimal additional investment.
Lower hour, late-model units equipped with advanced accessories like probing packages, live tooling, automation interfaces, or bar feeders can command $130,000 to $170,000+ USD, especially in regions with high demand for large turning centers. Geographic variations also influence pricing: North America and Western Europe tend to see higher used values due to stronger industrial demand. Buyers should also consider transport, rigging, installation, and tooling costs when planning the total investment to accurately assess overall value and readiness for production.