PALMARY OCD-3260 CNC grinding machine

PALMARY OCD-3260 CNC grinding machine was built in 2020 by the Taiwanese company Palmary Machinery Co., Ltd. The machine, designed to grind holes and rotary surfaces with a maximum diameter of 320 mm, offers excellent machining precision and efficiency for many years of intensive operation. To achieve this, a number of state-of-the-art components are used, such as a specially constructed spindle made of high-quality steel alloys which is mounted on precision bearings. In turn, the design of the grinding wheel spindle uses special hydrostatic bearings, which achieve high operating speeds with no friction between the surfaces. This eliminates heat energy and thus the creation of deformations.

The working head, driven by a powerful servomotor, rotates in a range of -30° to +90°. All guideways are lubricated by an advanced automatic hydrostatic system, ensuring, among others, extremely smooth movement and high feed accuracy. The PALMARY OCD 3260 CNC cylindrical and internal grinding machine is offered with an extensive range of equipment, including a magnetic chuck, a diamond disc for shaping grinding wheels and an intuitive FANUC numerical control. The total weight of the machine is 3600 kg.

Technical specifications of the PALMARY OCD-3260 shaft grinding machine

• maximum workpiece diameter: 320 mm
• rapid traverse in X,Z axis: 6 m/min
• accuracy in X,Z axis: 0.001 mm
• maximum workpiece weight in tusk: 150 kg
• tusk spacing: 600 mm
• main spindle rotational speed: 10-300 rpm
• main spindle rotation angle: -30°/+90°
• maximum main spindle load (including tool holder): 35 kg
• main spindle drive power: 1 kW
• grinding wheel rotational speed: 1783 rpm
• grinding wheel linear speed: 30 m/s
• grinding wheel dimensions (diameter x width x bore): 405 x 50 x 127 mm
• grinding wheel spindle drive power: 3.7 kW
• work table rotation angle: 0-12°
• tailstock quill extension: 25 mm
• tailstock quill cone: MT4
• coolant pump power: 0.18 kW
• lubricating oil tank capacity: 15 l
• spindle lubrication tank capacity: 15 l
• weight of the PALMARY OCD-3260 machine: 3600 kg

Equipment of the PALMARY internal grinding machine

• CNC control: FANUC Series 0i-TF Plus
• magnetic chuck fi 250 mm
• precision grinding chuck
• rotary lathe centre MT4
• tooling for reconditioning rolling tools (nail tools)
• additional mandrels for grinding wheels
• diamond disc attachment for shaping grinding wheels