CK5116BD Single‑Column Vertical CNC Lathe – Dual‑Lead Screw Lifting, Hydrostatic Guideway, and High Rigidity for Heavy‑Duty Machining

The dual‑lead screw advantage – why two lifting screws are better

Most traditional single‑column vertical lathes rely on a single lifting screw to raise and lower the crossrail. When cutting heavy parts, especially those with off‑center weight, a single screw often struggles with uneven loading, leading to crossrail tilt, vibration, and inconsistent accuracy. The HAIDI CK5116BD takes a smarter approach: two independent lifting motors drive two lead screws symmetrically on both sides of the column.

This dual‑lead screw configuration distributes lifting forces evenly, ensuring the crossrail stays perfectly level even under heavy or eccentric loads. The result is reduced deflection during deep cuts, smoother motion, improved surface finish, and longer guideway life. For workshops regularly machining large flanges, brake drums, or bearing rings, this is not just an upgrade – it is a practical necessity.

Why vertical turning makes sense for large‑diameter parts

For workpieces that are large in diameter but relatively short in length – large flanges, brake drums, bearing rings, valve bodies, pump housings, and gear blanks – a vertical lathe offers clear advantages over a horizontal machine. The vertical orientation uses gravity to assist loading and clamping, chips fall away from the cutting zone rather than accumulating on the part, and the worktable is supported over a large area by the guideway, providing higher static and dynamic rigidity. This makes vertical lathes the natural choice for heavy, large‑diameter turning applications.

The CK5116BD takes this proven concept and enhances it with modern engineering. Its hydrostatic table guideway uses a pressurized oil film to completely separate the table from its base, eliminating metal‑to‑metal contact, reducing wear, and providing exceptional vibration damping – critical for achieving consistent surface finishes on large sealing faces and bearing raceways.

Spindle and drive – torque for heavy cuts, smoothness for finishes

The spindle is driven by a powerful AC motor through a two‑speed gearbox, delivering the torque needed for deep roughing cuts in tough materials like alloy steel and cast iron, while also providing the speed range required for fine finishing passes. The gearbox uses 40Cr ground gears, which run quietly and transmit power efficiently even under heavy loads. The spindle itself is supported by high‑precision bearings that ensure stable rotation and long‑term accuracy.

For operators, this means the machine handles the entire workflow – from aggressive material removal on a rough forging to a mirror‑like finish on a sealing surface – with the same setup and without compromise.

Rigid cast construction for long‑term stability

The base, column, and crossrail are cast from high‑strength gray iron using the resin sand process. All castings undergo two‑stage stress relief: first artificial aging after rough machining, then vibration treatment. This removes internal stresses and prevents long‑term deformation – the kind of hidden quality that separates a machine that stays accurate for twenty years from one that drifts after two.

Sliding surfaces are induction‑hardened and coated with Turcite‑B to reduce friction and eliminate low‑speed stick‑slip, giving operators smooth, predictable feed control. The box‑type column design, developed through finite element analysis, provides the rigidity needed to resist bending and torsion during heavy cutting.

Siemens CNC – precision you can trust

The CK5116BD is equipped with a Siemens CNC system. This platform provides X and Z two‑axis linkage, constant surface speed control that automatically adjusts spindle rpm as the tool moves across the part diameter, and thread cutting cycles for both straight and tapered threads. Multiple operation modes – Auto for production runs, Jog for setup, Handwheel for fine positioning, MDI for single commands – give operators flexibility while maintaining accuracy. For shops already running Siemens controls, integration into existing workflows is seamless.

What makes the CK5116BD cost‑effective

The CK5116BD is priced significantly below comparable European or Japanese vertical lathes of similar capacity. Yet its core specifications – dual‑lead screw lifting, hydrostatic table, high‑rigidity cast structure, precision spindle bearings, and Siemens CNC – match or exceed many mid‑range offerings. By focusing on proven, mature technology rather than exotic materials or over‑engineered features, HAIDI Machine delivers a machine that shop owners can afford and rely on for daily production.

Who should consider the CK5116BD

• Shops machining medium to large flanges, brake drums, bearing rings, and gear blanks

• Factories upgrading from manual or older flat‑bed vertical lathes to CNC

• Automotive, heavy equipment, and general engineering suppliers needing consistent quality and tight tolerances

• Workshops with limited floor space looking for a compact yet capable vertical turning platform

➡️ For more information, a process evaluation, or a budget quotation, click here to contact our sales engineering team.