CNC lathe CK51-HM

verticalsingle-columnfor valves and flanges

Overview
The CK51-HM series single-column CNC vertical turning and grinding compound machine integrates advanced turning and grinding functions for heavy and large-diameter components. Suited to industrial production of valves, automotive parts, grinding tools, aerospace and defence components and similar applications.

Main functional description
The crossbeam carries two CNC turrets: the right toolpost for turning operations and the left toolpost configured as a grinding tool carrier. A single clamping secures the workpiece for both turning and grinding cycles, reducing setups, improving dimensional accuracy and lowering production cost and labor intensity.

Grinding head
The grinding head uses a motorized electric spindle mounted at the lower end of the ram with water cooling to support long-duration continuous operation. The spindle provides high rotational speed, low noise, high torque and stable performance for precision grinding tasks.

Spindle and workbench
The workbench features a thermo-symmetric design. The main spindle uses a high-precision adjustable radial-clearance double-row short cylindrical roller bearing for radial support and a high-precision thrust rolling bearing for axial guidance. Rails can be equipped with cross roller bearings as an option.

Main specifications

• Series: CK51-HM — models: CK5116-HM, CK5120-HM, CK5123-HM, CK5126-HM
• Maximum processing diameter (mm): 1600 / 2000 / 2300 / 2600 (model-dependent)
• Maximum processing height (mm): 1000/1400; 1200/1400; 1200/1400; 1400/1600 (per model)
• Maximum load-bearing (T): 8 / 10 / 10 / 12 (per model)
• Workbench size (mm): 1400 / 1800 / 2000 / 2250 (per model)
• Main motor power (kW): 30 (CK5116/CK5120/CK5123) or 37 (CK5126)
• Electric grinding head power (kW): 5.5–7.5
• Grinding head rotation speed (r/min): 50–3000
• Working table rotation range (r/min): 1–200 (CK5116/CK5120), 1–100 (CK5123), 1–63 (CK5126)
• Horizontal stroke of vertical tool holder X (mm): 915 / 1050 / 1180 / 1330
• Vertical tool post ram stroke Z (mm): 800 (CK5116 & CK5120) or 1000 (CK5123 & CK5126)
• Integrated turning and grinding on one machine for single-clamp two-process operation
• Grinding head: motorized electric spindle with water cooling for long-duration stable operation
• Workbench: thermo-symmetric structure with high-precision radial and thrust bearings
• Rail option: cross roller bearings available