One machine, many applications – the real value of a vertical lathe
A vertical lathe is never just a lathe. For many job shops and production lines, it is the machine that handles the biggest, most critical parts – the large flanges that seal pipelines, the brake drums that stop heavy trucks, the bearing rings that support wind turbines, the pump casings that move water and oil. These parts have tight tolerances, demanding materials, and zero room for error.
The CK5116BD is built for exactly these jobs. The dual‑lead screw lifting system keeps the crossrail level under heavy cuts, even when the part is not perfectly centered. The hydrostatic table absorbs vibration that would otherwise show up as chatter marks on sealing surfaces or bearing raceways. The rigid cast structure resists bending and torsion, holding geometry true from the first cut to the last.
Large flanges – the daily grind of many workshops
For most machine shops, large flanges are a regular job. A pipeline flange needs a flat, smooth sealing face, an accurately turned outer diameter, a properly sized inner bore, and often a gasket groove. On a smaller or less rigid machine, each of these features is a compromise – vibration during facing, deflection during boring, uncertainty about roundness.
On the CK5116BD, the dual‑lead screw system and the hydrostatic table change the story. The facing pass is smooth and chatter‑free. The boring bar stays on center. The gasket groove holds its profile across the entire circumference. For a typical flange, all operations – facing, outer diameter turning, inner diameter boring, grooving, and chamfering – are completed in a single clamping. There is no part repositioning, no accumulated error, no rework. The result is a flange that seals properly and passes inspection on the first try.
Brake drums – where safety meets productivity
Brake drums for commercial vehicles are cast iron components that require excellent roundness and a consistent friction surface. Any deviation reduces braking performance and shortens pad life. The challenge is that brake drums are heavy (often several hundred kilograms) and the interrupted cut during facing can cause vibration.
The CK5116BD's hydrostatic table handles this challenge effectively. The oil film between the table and the base absorbs the shock of interrupted cuts, preventing chatter and maintaining surface finish. The dual‑lead screw lifting system keeps the crossrail level, ensuring that the facing pass produces a flat, true surface. For a shop that runs brake drums in batches, the difference is measurable: fewer rejects, less downtime, and more good parts per shift.
Bearing rings and gear blanks – precision at scale
Large bearing rings for wind turbines, slewing drives, and industrial gearboxes demand high concentricity between outer and inner diameters, as well as accurate raceway profiles. Any eccentricity compromises bearing life and performance. The CK5116BD's precision spindle bearings and hydrostatic table ensure that when the part is clamped once on the worktable, all diameters are turned relative to the same axis – delivering the concentricity that bearings require.
For gear blanks, the requirement is similar: a turned blank that is concentric, dimensionally accurate, and properly faced for subsequent gear cutting. The CK5116BD's rigid construction and powerful spindle handle the heavy material removal required for gear blank roughing, while the Siemens CNC system ensures that the finishing passes hold tight tolerances. The result is a blank that goes to the hobbing machine ready to go – no surprises, no extra stock.
Why the dual‑lead screw system matters in everyday production
On paper, dual‑lead screw lifting is a specification. On the shop floor, it is a difference you can feel. When you are facing a 1.2‑meter flange and the cut starts to chatter, you know something is wrong. On a single‑screw machine, that chatter might mean adjusting the feed rate, lightening the depth of cut, or accepting a poor finish. On the CK5116BD, the dual‑lead screw system and the hydrostatic table work together to keep the cut stable – so you can keep running and keep producing.
For parts with off‑center weight – a valve body with a heavy boss on one side, a bearing ring that is not perfectly balanced – the dual‑lead screw system is especially valuable. By distributing lifting forces evenly, it prevents the crossrail from tilting under uneven load, maintaining tool alignment and part accuracy across the entire cut.
How single‑setup machining improves your bottom line
Every time you reposition a part, you lose time, you risk introducing error, and you tie up an operator. The CK5116BD is designed to minimize these hidden costs. With a worktable large enough to accommodate parts up to 1.6 meters in diameter and a crossrail that provides plenty of vertical clearance, most parts can be fully machined in one setup.
For a typical flange or brake drum, the total machine time from loading to finished part is significantly shorter than on a smaller or manual machine requiring multiple setups. And because the part stays clamped on the same table, there is no loss of reference – so the relationship between the face, the outer diameter, and the inner bore is exactly what you programmed.
What this means for your shop
The CK5116BD is not the most expensive machine in its class, and it is not the cheapest. It is the machine that delivers the right combination of features – dual‑lead screw lifting for stability, a hydrostatic table for vibration damping, a rigid cast structure for long‑term accuracy, and Siemens CNC for reliable control – at a price that makes sense for shops that need to get work done.
For a shop currently outsourcing large flanges or brake drums because its current lathes are too small, the CK5116BD brings that work in‑house: shorter lead times, better quality control, and margins that stay in your pocket instead of going to a subcontractor. For a shop already doing large parts but struggling with vibration or inconsistent finishes, the CK5116BD is an upgrade that pays for itself in better quality and fewer rejects.
Practical preparation for buyers
Before the CK5116BD arrives, users should prepare a solid concrete foundation capable of supporting the machine's weight, provide a suitable overhead crane for unloading and positioning, and ensure a stable power supply with proper voltage and phase requirements. Standard delivery includes on‑site installation and operator training.
➡️ To see how the CK5116BD fits your parts – flanges, brake drums, bearing rings, gear blanks, or pump housings – or to request a trial cut or quotation, click here to speak with our application engineering team.