USED HAAS SL20T – 1999
The 1999 HAAS SL20T is a proven CNC slant-bed turning center built for precision machining, medium-duty production work, and versatile turning applications across a wide range of manufacturing industries. Manufactured by Haas Automation, the SL20T became one of the most widely adopted CNC lathes in the Haas SL-Series lineup because of its reliable performance, manageable operating costs, rigid construction, and user-friendly CNC control system. Even decades after its original production, the SL20T remains a respected and highly utilized machine in shops throughout North America.
The “T” designation typically refers to the inclusion of a programmable tailstock, which significantly expands the machine’s machining flexibility for longer shafts, cylindrical components, and parts requiring additional support during turning operations. The machine was engineered with a rigid slant-bed configuration that improves chip evacuation, enhances cutting stability, and provides excellent operator accessibility during setup and machining operations.
The 1999 HAAS SL20T combines a high-torque spindle system, servo-index turret, hydraulic chucking system, and Haas CNC control platform to deliver dependable production capability for both prototype and repetitive machining applications. The machine is capable of processing aluminum, steel, stainless steel, brass, cast iron, plastics, and other engineering materials with excellent repeatability and machining consistency. Typical applications include machining bushings, couplings, spacers, threaded fittings, shafts, sleeves, adapters, valve components, and industrial precision hardware.
Many SL20T machines were equipped with additional production-enhancing features such as bar feeders, parts catchers, tool presetters, coolant systems, chip augers, and programmable tailstocks. These features improved spindle utilization and supported unattended or semi-automated machining operations.
Industries including aerospace, oil and gas, automotive, hydraulics, medical manufacturing, industrial repair, electronics, and general contract machining commonly utilize the HAAS SL20T because of its balanced work envelope and reliable turning performance. The machine offers greater machining capacity compared to smaller compact CNC lathes while still maintaining practical floor space requirements.
One of the major reasons the HAAS SL20T remains highly desirable within the used CNC machinery market is its long-term durability and broad service support. Many shops continue operating older Haas SL-series machines because replacement parts, technical support, and operator familiarity remain widely available throughout the industry. Users on machining forums frequently note that older Haas machines continue to provide good value when properly maintained.
Because of its dependable turning capability, flexible work envelope, and excellent long-term value, the 1999 HAAS SL20T continues to remain one of the most practical CNC turning centers available in the used machinery market.
HAAS SL20T – AXIS
| Specification | Details |
|---|---|
| Machine Configuration | CNC Slant-Bed Turning Center |
| Axis Configuration | X and Z Axis |
| X-Axis Travel | Approx. 8.45 in |
| Z-Axis Travel | Approx. 20 in |
| Rapid Traverse Rate | Approx. 710 IPM |
| Guideway Type | Linear Guideways |
HAAS SL20T – AXIS TRAVELS / WORK ENVELOPE
| Specification | Details |
|---|---|
| Maximum Turning Diameter | Approx. 10.3 in |
| Maximum Turning Length | Approx. 20 in |
| Swing Over Bed | Approx. 23 in |
| Swing Over Cross Slide | Approx. 9.5 in |
| Chuck Size | 8 in Hydraulic Chuck |
| Bar Capacity | Approx. 2 in |
HAAS SL20T – CAPACITY / TABLE
| Specification | Details |
|---|---|
| Production Capability | Medium Production |
| Tailstock Configuration | Programmable Tailstock |
| Long-Part Support | Excellent |
| Automation Compatibility | Bar Feeder Ready |
| Machining Flexibility | High |
HAAS SL20T – SPINDLE
| Specification | Details |
|---|---|
| Maximum Spindle Speed | Approx. 4000 RPM |
| Spindle Motor Power | Approx. 20 HP |
| Spindle Nose | A2-6 |
| Spindle Bore | Approx. 3 in |
| Drive System | Vector Drive |
| Spindle Design | High-Torque Precision Spindle |
HAAS SL20T – TOOL CHANGER
| Specification | Details |
|---|---|
| Turret Capacity | 10-Station Turret |
| Turret Type | Servo Indexed |
| Tool Mount Style | Bolt-On Tool Holders |
| Tool Change Speed | Fast Servo Indexing |
| Live Tooling Capability | No |
HAAS SL20T – CONTROL SYSTEM
| Specification | Details |
|---|---|
| CNC Control | Haas CNC Control |
| Programming Capability | Conversational & G-Code |
| Memory Capacity | Approx. 1 MB |
| DNC Capability | Supported |
| Display Interface | CRT Display |
HAAS SL20T – COOLANT / DUST / WATER MANAGEMENT
| Specification | Details |
|---|---|
| Coolant System | Flood Coolant |
| Coolant Tank Capacity | Approx. 55 Gallons |
| Chip Removal | Chip Auger or Tray |
| Coolant Pump | Integrated |
| High-Pressure Coolant | Optional |
HAAS SL20T – POWER REQUIREMENTS
| Specification | Details |
|---|---|
| Voltage Requirement | 208V – 230V / 3-Phase |
| Power Consumption | Approx. 30 kVA |
| Pneumatic Requirement | Standard Shop Air |
| Electrical Configuration | Industrial CNC Power |
HAAS SL20T – DIMENSIONS
| Specification | Details |
|---|---|
| Approximate Weight | Approx. 9,000 lbs |
| Machine Length | Approx. 126.5 in |
| Machine Width | Approx. 74 in |
| Machine Height | Approx. 72 in |
| Installation Footprint | Medium CNC Footprint |
HAAS SL20T – GENERAL INFORMATION
| Specification | Details |
|---|---|
| Manufacturer | Haas Automation |
| Model | SL20T |
| Year | 1999 |
| Machine Category | CNC Slant-Bed Lathe |
| Primary Application | Precision Turning & Production Machining |
| Typical Materials | Steel, Aluminum, Brass, Stainless Steel |
INDUSTRIES THAT USE HAAS SL20T
The HAAS SL20T is widely used across manufacturing industries requiring dependable CNC turning capability combined with strong production flexibility. Aerospace suppliers frequently utilize the machine for machining threaded fittings, bushings, couplings, spacers, sleeves, and structural hardware requiring consistent dimensional accuracy and repeatable production quality.
Oil and gas manufacturers also commonly use the SL20T for machining valve components, pipe fittings, instrumentation hardware, adapters, and cylindrical industrial components. The machine’s high-torque spindle and programmable tailstock provide stable support for longer workpieces and aggressive turning operations.
Hydraulic and fluid power manufacturers rely on the SL20T for machining rods, fittings, pressure-system components, couplings, and threaded valve hardware. The machine handles stainless steel, brass, and alloy materials efficiently while maintaining good surface finish quality.
Automotive suppliers utilize the machine for machining shafts, sleeves, spacers, bushings, sensor housings, and drivetrain components. The balanced work envelope allows manufacturers to efficiently process both short-run and production turning applications.
Medical manufacturers also use the SL20T for precision cylindrical components, threaded connectors, surgical hardware, and instrument fittings requiring smooth finishes and repeatable machining tolerances.
General contract machine shops continue purchasing used SL20T machines because they provide versatile CNC turning capability without requiring the higher investment associated with newer multi-axis turning centers. Many shops appreciate the simplicity of the Haas control system and the widespread availability of replacement parts and service support.
Machinists discussing older SL-series lathes frequently mention that properly maintained Haas machines can continue producing profitable work for years while remaining relatively straightforward to maintain.
Because of its dependable construction, practical machining envelope, and broad application flexibility, the HAAS SL20T continues to support a wide variety of manufacturing industries.
TYPICAL PARTS HAAS SL20T CAN PRODUCE
| Part Type | Examples |
|---|---|
| Aerospace Components | Bushings, Couplings, Spacers |
| Oil & Gas Components | Valve Parts, Pipe Adapters |
| Hydraulic Components | Rods, Fittings, Couplings |
| Automotive Parts | Shafts, Sleeves, Bushings |
| Medical Components | Connectors, Surgical Hardware |
| Industrial Hardware | Fasteners, Precision Turned Parts |
WHY CHOOSE HAAS SL20T
The HAAS SL20T is designed for manufacturers seeking dependable CNC turning capability combined with flexible machining performance, practical operating costs, and long-term reliability. One of the machine’s biggest advantages is its balance between machining capacity and manageable floor space requirements. The SL20T provides significantly greater turning capability compared to smaller compact lathes while remaining affordable and practical for small-to-medium sized machine shops.
The machine’s programmable tailstock also expands machining flexibility by allowing manufacturers to support longer workpieces during turning operations. This improves workpiece stability and reduces deflection during shaft machining, threading, and heavy cutting operations.
Another major advantage is the machine’s slant-bed construction, which improves chip evacuation and machine rigidity while providing easier operator access during setup and production machining. Improved chip control contributes to better surface finishes, improved tool life, and more stable cutting performance.
The Haas CNC control system is also widely recognized throughout the manufacturing industry for its user-friendly interface and conversational programming features. Shops already operating Haas equipment often prefer additional Haas machines because of programming consistency and simplified operator training.
Many SL20T machines were configured with chip augers, parts catchers, tool presetters, and bar feeder interfaces that improve spindle utilization and production efficiency. Machines equipped with automation accessories can support repetitive production operations with reduced operator intervention.
Compared to newer CNC turning centers, the SL20T also offers lower acquisition costs and manageable maintenance requirements. Many shops continue operating older SL-series machines because of their straightforward mechanical design and strong aftermarket support.
Online machining communities frequently mention that older Haas lathes continue to provide solid production value when properly maintained, especially for smaller production shops and independent machining operations.
For manufacturers requiring reliable CNC turning capability with flexible machining performance and excellent long-term value, the HAAS SL20T remains one of the most practical turning centers available in the used machinery market.
WHY BUY USED HAAS SL20T
Purchasing a used 1999 HAAS SL20T provides manufacturers with affordable access to proven CNC turning capability while significantly reducing equipment investment costs. One of the biggest advantages of buying used CNC machinery is the opportunity to acquire reliable production equipment at a fraction of the cost of purchasing new turning centers.
The HAAS SL20T remains highly desirable in the used machinery market because of its reputation for durability, machining flexibility, and straightforward operation. Properly maintained machines continue to provide dependable production capability many years after their original installation.
Another major benefit of purchasing a used SL20T is reduced lead time. New CNC machines frequently involve factory scheduling delays and substantial capital investment. Purchasing a used machine allows manufacturers to quickly expand machining capacity and respond faster to customer production demands.
Many used SL20T machines are also sold with valuable accessories already installed, including bar feeders, parts catchers, programmable tailstocks, tool presetters, hydraulic chucks, and coolant systems. These additions improve production efficiency while reducing aftermarket installation expenses.
The machine’s relatively straightforward mechanical design also contributes to easier long-term ownership and maintenance. Haas equipment remains widely supported throughout the manufacturing industry, making replacement parts, technical service, and operator familiarity easier to manage compared to many older imported CNC systems.
Used SL20T machines are especially attractive for smaller machine shops, startup manufacturers, prototype facilities, and contract machining operations seeking dependable CNC turning capability within a manageable budget.
Online machinist communities often note that older Haas machines continue producing profitable work when maintained properly, with strong aftermarket support and broad operator familiarity helping extend their service life.
For manufacturers seeking affordable CNC turning capability with dependable long-term performance, the used 1999 HAAS SL20T remains an excellent investment opportunity within the used CNC machinery market.
HOW MUCH DOES A USED HAAS SL20T COST?
The price of a used 1999 HAAS SL20T depends on machine condition, spindle hours, included tooling, automation accessories, maintenance history, and overall market demand. Because the SL20T remains one of the most recognized CNC lathes in the Haas SL-Series lineup, properly maintained machines continue to retain strong value within the used machinery market.
A typical used 1999 HAAS SL20T may range from approximately $10,000 to $35,000 depending on machine configuration, operating condition, and included accessories. Machines equipped with bar feeders, chip augers, parts catchers, hydraulic chucks, programmable tailstocks, or tooling packages often command higher resale pricing because of their increased production capability.
Machine condition remains one of the most important pricing factors. Buyers should carefully inspect spindle performance, turret indexing operation, axis movement accuracy, lubrication systems, coolant systems, and overall machine cleanliness before purchasing. Machines with documented maintenance history and lower spindle hours generally retain stronger resale value.
Control generation can also influence pricing. Some machinists note that older Haas control boards may have limited factory support compared to newer control systems, which buyers should consider during machine evaluation and long-term maintenance planning.
Dealer-listed machines may carry higher pricing compared to privately sold equipment because dealers frequently provide inspections, financing options, startup assistance, or limited warranty coverage. Geographic location and transportation costs may also influence overall acquisition expense.
The affordability of older SL20T machines continues to make them highly attractive for smaller manufacturing facilities, independent machine shops, and growing CNC operations seeking reliable turning capability without excessive capital investment.
Despite changes in the used CNC machinery market, the HAAS SL20T continues to remain one of the most practical and cost-effective CNC turning centers available. For manufacturers seeking dependable turning performance, strong machining flexibility, and excellent long-term value, the used 1999 HAAS SL20T remains an outstanding investment opportunity.
