Cylindrical grinding machine T-1012

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INTRODUCTION
The TOPKING T-1012 is the most compact NC cylindrical grinder in the T series, engineered for workshops with limited floor space and for production of small precision multi-step parts. It provides a 300 mm distance between centers and a maximum swing over table of Ø270 mm, enabling stable machining of small-to-medium components with minimal footprint. Both X and Z axes are servo-driven and the machine includes a graphical user interface (GUI) for intuitive numerical programming. The T-1012 retains the T Series rigid structure and an automatic hydrostatic lubrication system to maintain micron-level accuracy during high-speed operation.

▎CAPACITY
Swing Over Table: Ø270 mm
Distance Between Centers: 300 mm
Max. Grinding Diameter: Ø250 mm
Grinding Wheel: Ø355 x 50 x Ø127 mm


▶ MACHINE FEATURE

HIGH PERFORMANCE GRAPHICAL USER INTERFACE
▪ The graphic dialogue interface provides a user-friendly and safe operating environment. Numerical programs can execute grinding cycles, dressing, and compensation. The system stores coordinates for mechanical origin, grinding, dressing and offsets with one key. Multiple grinding and dressing methods are selectable to match component requirements.

RIGID MACHINE BASE
▪ The machine frame is engineered for high rigidity: thicker sliding seats, 1V+1 flat slideway geometry and a static-pressure based lubrication design deliver improved stability and precision compared with lightweight structures.

HYDROSTATIC LUBRICATION SYSTEM
▪ Table and wheelhead slideways use an automatic hydrostatic lubrication system to improve lubrication consistency and slide smoothness, enabling better feed control and machining accuracy.

WHEELHEAD CONSTRUCTION
▪ The grinding wheel spindle is manufactured from alloy steel SNCM-220 with normalization, quenching, tempering, carburizing, cryogenic treatment and precision grinding/mirror finishing. Surface hardness exceeds HRC62 to resist deformation and wear and ensure long-term spindle accuracy.

WORKHEAD AND TAILSTOCK
▪ The workhead uses precision bearings and a servo-driven spindle with continuous variable speed. A fixed-type work spindle enhances accuracy and stability. The tailstock is oil-bath lubricated with an oil gauge for monitoring and delivers consistent support for between-centers work.

DIAMOND TOOL HOLDER
▪ The slider-mounted diamond dressing holder is affixed to the Z-axis slide to minimize error from repeated dressing position adjustments. Various dressing devices are available to suit specific component geometries.


▶ SPECIFICATION

Capacity
- Swing Over Table: Ø270 mm
- Distance Between Centers / Max. Grinding Length: 300 mm
- Max. Grinding Diameter: Ø250 mm
- Max. Grinding Length: 300 mm
- Max. Load Held Between Centers: 60 kg
- Center Height (from table to center tip): 135 mm

Grinding Wheel
- Size (O.D. x width x I.D.): Ø355 x 38~50 x Ø127 mm
- Linear Velocity: 33 m/sec

Worktable
- Swiveling Angle: 0° ~ 12°

Workhead
- Swiveling Angle: -30° ~ +90°
- Center Taper: MT No.3 (opt. MT No.4)
- Spindle Speed: 10 ~ 300 rpm
- Max. Load of Spindle (tool holder included): 15 kg (Max. Length: 150 mm)

Tailstock
- Center Taper: MT No.3 (opt. MT No.4)
- Center Moving: Manual
- Tailstock Stroke: 25 mm

X-axis Travel
- Max. Travel: 220 mm
- Rapid Feedrate Speed: 6000 mm/min
- Auto Feeding Speed: 0.001 ~ 2000 mm/min
- Min. Feeding Setting: 0.001 mm

Z-axis Travel
- Max. Travel: 560 mm
- Rapid Feedrate Speed: 6000 mm/min
- Auto Feeding Speed: 0.001 ~ 2000 mm/min
- Min. Feeding Setting: 0.001 mm

Drive Motors
- Grinding Wheel Spindle: 3.75 kW
- Workhead Spindle Motor: 0.85 kW (AC servo)
- Wheelhead Feed X-axis: 1.0 kW (AC servo)
- Table Feed Z-axis: 1.5 kW (AC servo)
- Lubrication Oil Pump: 0.075 kW
- Wheel Spindle Lubrication Oil Pump: 0.18 kW
- Coolant Pump: 0.18 kW

Tank Capacities
- Wheel Spindle Lubrication Oil Tank: 14 L
- Lubrication Oil Tank: 15 L

Machine
- Dimension (L x W x H): 2420 x 1540 x 2112 mm
- Net Weight: 2600 kg
- Center Height (from floor to center tip): 1057 mm

* The mentioned specifications & dimensions are subject to change without notice.


▶ ACCESSORIES

STANDARD ACCESSORIES

• Grinding Wheel and Flange x1 set
• Carbide Tipped Work Centers (2 pcs/set) x1 set
• Diamond Tool Holder (slider mounted) x1 set
• Electric System x1 set
• Lubrication System x1 set
• Coolant System x1 set
• Work Lamp x1 set
• Tools (Leveling pad) and Tool Box x1 set

OPTIONAL ACCESSORIES

• Internal Grinding Attachment (incl. one spindle and G.W. inverter)
• Hydraulic Tailstock
• Cam-locked Type Driving Dog
• Work Holders 2 pcs/set
• 2-Point Steady Rest
• 3-Point Steady Rest
• 3-jaw Chuck
• 4-jaw Chuck
• Spare Grinding Wheel and Flange
• Diamond Roller Dressing Device (flange connection to workhead)
• Wheel Balancing Stand & Arbor
• Automatic Grinding Wheel Balancer
• Touch Probe Gauge
• Auto. In-Process Gauge
• Semi-Splash Guard
• Fully Enclosed Splash Guard
• Magnetic Coolant Separator
• Paper Filter
• Oil Mist Collector