The HAAS ST-35 is a heavy-duty CNC turning center designed for machining larger diameter parts with high torque, excellent rigidity, and dependable production performance. Manufactured by Haas Automation, the ST-35 is part of the highly successful ST Series and is widely used in oil and gas, aerospace, automotive, and general manufacturing. The 2014 model remains a strong contender in the used CNC market because it offers substantial turning capacity and modern Haas control features at a significantly lower cost than a new machine.
The 2014 HAAS ST-35 typically features a 12-inch hydraulic chuck, a maximum cutting diameter of 21 inches, and a turning length of approximately 31 inches. Standard equipment includes a 30 hp spindle motor, a large 4-inch bar capacity, spindle speeds up to 2,400 RPM, and a 12-station bolt-on turret. The machine is capable of machining carbon steel, stainless steel, alloy steels, cast iron, and large aluminum components with excellent stability and surface finish.
The ST-35 is commonly used to manufacture flanges, valve bodies, shafts, couplings, hydraulic cylinders, rollers, and other large precision components. Optional equipment such as programmable tailstocks, chip conveyors, bar feeders, and parts catchers can further enhance productivity.
The 2014 HAAS ST-35 remains a popular used machine because it combines large-part capacity, strong spindle torque, and excellent service support, making it an outstanding long-term investment.
HAAS ST-35 SPECIFICATIONS
HAAS ST-35 – AXIS
Number of Axes
2-Axis CNC Turning Center
Axis Configuration
X and Z
Optional Tailstock
Available
Positioning Accuracy
High Precision
Repeatability
Excellent
Machine Type
CNC Slant-Bed Lathe
HAAS ST-35 – AXIS TRAVELS
X-Axis Travel
12.5 in (318 mm)
Z-Axis Travel
31 in (787 mm)
Rapid Traverse Rate
945 ipm (24 m/min)
Maximum Turning Length
31 in (787 mm)
Swing Over Front Apron
31.75 in (806 mm)
Guideway Type
Box Ways
HAAS ST-35 – CAPACITY
Maximum Cutting Diameter
21 in (533 mm)
Maximum Turning Length
31 in (787 mm)
Chuck Size
12 in Hydraulic Chuck
Bar Capacity
4.0 in (102 mm)
Spindle Bore
4.62 in (117 mm)
Production Capability
Heavy-Duty Turning
HAAS ST-35 – SPINDLE
Maximum Spindle Speed
2,400 RPM
Spindle Motor Power
30 hp (22.4 kW)
Spindle Nose
A2-8
Drive System
Belt Drive
Maximum Torque
High Torque Output
Constant Surface Speed
Standard
HAAS ST-35 – TABLE
Machine Configuration
Slant-Bed Turning Center
Bed Construction
Cast Iron
Tailstock
Optional Hydraulic Tailstock
Steady Rest Compatible
Yes
Workholding Options
Hydraulic Chuck, Collet, Faceplate
Machine Rigidity
Excellent
HAAS ST-35 – TOOL TURRET
Turret Capacity
12 Stations
Tool Mounting Style
Bolt-On
Tool Change System
Servo Indexed
Live Tooling
Optional on Y-Axis Models
Maximum Tool Size
Heavy-Duty Holders
Turret Type
Hydraulic
HAAS ST-35 – FEEDRATES
Maximum Cutting Feed Rate
Programmable
X-Axis Rapid Feed
945 ipm
Z-Axis Rapid Feed
945 ipm
Servo System
Brushless Digital Servo
Thread Cutting
Standard
Surface Finish Capability
Excellent
HAAS ST-35 – COOLANT & CHIP MANAGEMENT
Coolant Tank Capacity
95 gal (360 L)
Flood Coolant System
Standard
Chip Conveyor
Optional
Coolant Filtration
Multi-Stage
Washdown Hose
Standard
Through-Tool Coolant
Optional
HAAS ST-35 – CONTROL SYSTEM
CNC Control Brand
Haas CNC Control
USB Port
Standard
Ethernet Interface
Standard
Rigid Tapping
Standard
Macros
Optional
User Interface
Operator Friendly
HAAS ST-35 – POWER & AIR REQUIREMENTS
Power Requirement
3-Phase
Input Voltage
220V / 440V
Full Load Current
Approx. 55A @ 220V
Air Pressure Requirement
80 – 100 psi
Air Consumption
4 scfm
Frequency
50 / 60 Hz
HAAS ST-35 – DIMENSIONS
Machine Weight
Approx. 13,500 lb (6,124 kg)
Machine Length
Approx. 170 in (4,318 mm)
Machine Width
Approx. 86 in (2,184 mm)
Machine Height
Approx. 84 in (2,134 mm)
Floor Space Requirement
Large Footprint
Installation Type
Standard Shop Floor
HAAS ST-35 – GENERAL INFORMATION
Machine Type
Heavy-Duty CNC Turning Center
Manufacturer
Haas Automation
Country of Origin
USA
Model Year
2014
Primary Application
Large-Part Turning
Automation Ready
Yes
INDUSTRIES THAT USE HAAS ST-35
Oil & Gas
Flanges and Valve Bodies
Aerospace
Structural Turned Components
Automotive
Large Shafts and Hubs
Hydraulics
Cylinders and Pistons
Energy
Rotating Equipment Parts
General Manufacturing
Heavy Turned Components
TYPICAL PARTS HAAS ST-35 CAN PRODUCE
Flanges
Yes
Shafts
Yes
Valve Bodies
Yes
Hydraulic Cylinders
Yes
Couplings
Yes
Rollers
Yes
WHY CHOOSE HAAS ST-35
Large Bar Capacity
Excellent
High Torque Spindle
Outstanding
Rigid Construction
Excellent
Modern Control Features
Excellent
Strong Parts Availability
Extensive
Resale Value
High
WHY BUY USED HAAS ST-35
Purchasing a used 2014 HAAS ST-35 is an excellent way to obtain a large-capacity turning center at a significantly lower cost than buying new. The machine’s 4-inch bar capacity and high-torque spindle make it ideal for machining large steel and alloy components.
Many used machines include valuable options such as hydraulic tailstocks, chip conveyors, steady rests, and tooling packages. These accessories can substantially increase productivity and reduce setup costs. Because the ST Series is widely used, replacement parts and technical support are readily available.
Buyers should inspect spindle bearings, turret indexing, hydraulic systems, and overall machine condition. Machines with documented maintenance and low cutting hours typically command higher prices and provide better long-term reliability.
For manufacturers seeking heavy-duty turning capability and dependable performance, the HAAS ST-35 remains one of the best values in the used CNC lathe market.
HOW MUCH DOES A USED HAAS ST-35 COST?
MACHINE AGE / CONDITION
ESTIMATED PRICE RANGE (USD)
2012 – 2014 Models
$45,000 – $80,000
2015 – 2018 Models
$60,000 – $110,000
Low Cutting Hours
Premium Pricing
Machines with Tailstock
Added Value
Machines with Chip Conveyor and Tooling
Added Value
Machines with Bar Feeder or Steady Rest
Significant Premium
Refurbished Machines
15% – 30% Higher
Excellent Mechanical Condition
Premium Pricing
Fully Operational Under Power
Higher Buyer Confidence
Comprehensive Maintenance Records
Higher Market Value
The cost of a used 2014 HAAS ST-35 depends on spindle hours, maintenance history, installed options, and overall condition. Most machines sell between $45,000 and $80,000, while low-hour machines with tailstocks, steady rests, chip conveyors, and tooling packages command higher prices.
Machines that have been properly maintained can provide many years of dependable service. Buyers should inspect spindle performance, hydraulic systems, and turret accuracy before purchasing.
For shops that need a large-capacity CNC turning center with strong spindle torque and modern control features, the HAAS ST-35 offers outstanding performance and long-term value.