Poreba
Poreba® Machine Tool Rebuilding & Repair
At Precision Service Machine Tool Rebuilders, premium manual and CNC machine tools have been our specialty since 1983—and Poreba lathes are exactly the kind of heavy, long-bed, large-swing equipment we’re built to support. As an experienced lathe rebuilding company, we work with machines where bed condition, alignment, spindle performance, and long-travel accuracy directly affect finished parts.
Our role is simple: keep your Poreba equipment accurate, reliable, and productive for as long as possible through expert rebuilds, repairs, and modernizations—whether you’re running classic gap-bed engine lathes or modern CNC and oil country machines. Our CNC lathe rebuilding services Illinois operations rely on the same practical approach: determine where accuracy or reliability has been lost, identify the underlying wear or system problem, and scope the work around what the machine actually requires. Poreba is known worldwide for heavy and super heavy-duty horizontal lathes capable of handling extremely large, high-mass workpieces for demanding industries such as power generation, mining, metallurgical, and shipbuilding.

Why Poreba Owners Work With Us
Poreba lathes are built for serious work—long shafts, large diameters, deep-hole drilling setups, and heavy interrupted cuts. Over time, even this kind of iron experiences:
For a lathe rebuilding company, these conditions need to be considered together. Correcting one worn component without checking bed geometry, alignment, spindle condition, and related systems may leave the underlying accuracy problem unresolved. Depending on the source of the error, laser measurement and alignment may be used to restore CNC machine accuracy by identifying positioning and geometric errors that need correction.
We focus on:
Our CNC lathe rebuilding services Illinois capabilities can also address aging controls, drives, feedback devices, and electrical systems when mechanical rebuilding alone will not provide the reliability the machine needs for continued production. On CNC machine tools equipped with automatic tool-changing systems, recurring indexing, positioning, or exchange problems can also indicate the need for tool changer service in Addison IL before a developing problem causes additional downtime.
Types of Poreba Machines We Service

We work on both legacy and modern Poreba machines, manual and CNC, including:
If your specific Poreba model isn’t listed, we are still interested in discussing it—our experience covers many custom, special, and older machines. As a lathe rebuilding company, we evaluate the condition of the machine and its production requirements before determining whether repair, rebuilding, modernization, or a combination of work makes the most sense. Where wear or damage to precision guide surfaces is affecting geometry, slideway grinding can be part of the machine tool accuracy restoration process.
What We Do for Poreba Equipment
- Complete Mechanical Rebuilds
- Way & Geometry Restoration
- Electrical, Drive & CNC Modernization
- CNC / Control Retrofits (Where Applicable)
- Field Repair, Troubleshooting & Alignment
- Preventive Maintenance & Life Extension
- Typical Poreba Problems We Solve
For large, long-bed Poreba machines, we pay special attention to supporting and fixturing the base during rebuild so the geometry you pay for in our shop is what you see on your floor.
On very long Poreba lathes, geometric integrity is everything—we focus on practical accuracy where your parts actually run.
Whether your Poreba is still manual with relay logic or has aging CNC hardware, we can help you make a sensible plan for keeping it reliable.
Our goal is to give you a Poreba that “feels new” from the operator perspective—without paying new-machine prices for heavy cast iron you already own.
For some Poreba units, a targeted, on-site intervention is the fastest way to get you back in production.
We help you treat each Poreba as a long-term capital asset—not just a machine to run until it fails.
Our Poreba Rebuild Process
Evaluation & Scope
Detailed inspection, test cuts, and geometry checks tailored to large, heavy Poreba work; clear, written scope and quotation.
Disassembly & Cleaning
Down to major assemblies or base castings; components cleaned, inspected, and tagged for repair, replacement, or upgrade.
Geometry & Structure
Ways restored, saddles and slides fitted, twist and sag addressed, and motion components rebuilt or replaced.
Subsystem Rebuilds & Upgrades
Spindles, aprons, tailstocks, lubrication, guarding, electrics, drives, and controls rebuilt or modernized as needed.
Reassembly & Calibration
Rebuilt machine assembled, leveled, aligned, and function-tested—including verification over full travel and typical load ranges.
Run-Off & Documentation
Cutting tests performed; accuracy data, alignment records, and any new electrical or control documentation provided.
Keep Your Poreba Machines Earning
When a Poreba lathe or boring machine is down—or parts start drifting out of tolerance—it doesn’t just affect one job. It affects schedules, delivery dates, and your reputation with customers.
Our job is to turn that risk into a long-lived, high-performing asset again. For CNC-equipped machines, our CNC lathe rebuilding services Illinois work can address both mechanical wear and aging CNC or electrical systems so the rebuild reflects how the entire machine operates.
Tell us your Poreba model, the type of work you run on it, and the issues you’re seeing. We’ll outline repair, rebuild, or retrofit options to bring it back to the level of performance your operation depends on. Working with an experienced lathe rebuilding company helps ensure the scope is based on the machine’s actual condition, accuracy requirements, and production demands.
