Horizontal Boring

Unlock the Size of Greatness

Horizontal boring is the backbone of demanding machine manufacturing. When it comes to massive industrial components that combine large scale and extreme dimensional precision, our production is at its best. From our modern machine shop in Outokumpu, Turula Engineering provides top-tier boring services that meet the global industry’s strictest quality requirements.
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Turula-Engineering - Horizontal Milling

What is modern boring?

Boring (Finnish: aarporaus) is a machining method that uses a horizontal spindle to enlarge holes, mill surfaces, and create precise recesses in large, heavy workpieces. Unlike traditional milling, the structure of a boring mill allows the tool arm to reach deep into the workpiece without sacrificing the stability required for precision.

Turula’s boring capacity:
Scale that matters

Our machinery has been specifically selected to serve heavy industry. When a workpiece weighs tens of tons and spans several meters, Turula Engineering is in its element.

1. TOS WRD 150
This is our largest boring mill, designed for the most demanding frame structures. Its 14-meter X-travel allows for the machining of long components, such as paper machine frames or large engine beds, in a single setup.

  • X-axis: 14,000 mm (length)
  • Y-axis: 4,000 mm (height)
  • Z-axis: 1,800 mm (spindle/reach)

2. TOS WRD 130
This machine is optimized for the efficient throughput of medium-to-large workpieces. It matches its “big brother” in features but on a slightly smaller scale.

  • X-axis: 10,000 mm (length)
  • Y-axis: 3,000 mm (height)
  • Z-axis: 1,360 mm (spindle/reach)

3. TOS WHQ 13
Our TOS WHQ 13 machine produces high-quality results in a wide variety of large-scale projects.

  • X-axis: 4,000 mm (length)
  • Y-axis: 2,500 mm (height)
  • Z-axis: 2,000 mm (spindle/reach)

4. TOS WHN 13
Our TOS WHN 13 machine provides excellent control for dimensions slightly smaller than the previous machine. It is well-suited for projects requiring reliable performance and precise boring.

  • X-axis: 3,500 mm (length)
  • Y-axis: 2,000 mm (height)
  • Z-axis: 1,250 mm (spindle/reach)

Technical advantages for our customers

Integrated Process
One of Turula’s greatest strengths is that all production processes related to a product function as a seamless, unified process. Because preceding work phases are also performed at Turula, machining allowances are accounted for as an integrated process during the work planning and material procurement stages.

  • Welding Shop: We manufacture heavy steel structures in-house.
  • Heat Treatment: We also provide heat treatment services for the components we produce.
  • Boring: Final dimensional accuracy is achieved with our precision machinery.
  • Quality Control: We use laser-based measuring equipment and 3D measurement to verify tolerances.

Material Expertise
We machine a wide spectrum of industrial materials:

  • Structural and high-strength steels
  • Stainless and acid-resistant steels (Duplex)
  • Specialty steels for demanding process environments

Why do industry leaders choose
Turula Engineering?

Professional buyers look for reliability. Turula Engineering’s process is refined to meet these needs:

  • Stability and Precision: Our machines are anchored to heavy foundations, minimizing vibration and guaranteeing accuracy even for the largest workpieces.
  • Delivery Reliability: Our location in Outokumpu and our logistical expertise ensure that even heavy shipments move on time across Europe.
  • Cost-Efficiency: Modern tool selection and optimal CAM programming reduce machining time, directly benefiting the customer’s final invoice.

Frequently Asked Questions (FAQ)

What is the maximum workpiece weight you can machine? Our crane capacity and machine table limits allow us to handle workpieces weighing several dozen tons. The exact weight limit depends on the geometry of the component.

How do you ensure quality in boring? We use calibrated measuring instruments and can provide a measurement report for every job. Our process is ISO 9001 and ISO 14001 certified.

Can you perform boring as a subcontractor for finished parts? Yes, we accept blanks supplied by the customer for machining, although most of our projects are turnkey manufacturing.

Enabling your next step in development

At Turula, we understand how vital reliable machinery is to your operations. Our rigorous testing processes are designed to identify and resolve potential issues, ensuring your equipment meets the highest quality and performance standards.
Contact us to discuss a trial run and discover how Turula can help bring your equipment to peak performance.

Janne Kyllönen
Manager – Sales
+358 40 864 4874
janne.kyllonen[at]turula.fi

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