Cylindrical grinding machine X-2540CAM

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INTRODUCTION
The TOPKING X-2540CAM is a CNC non-round grinding machine designed for CAM-controlled contour grinding under space-constrained conditions. The machine adopts a cross-slide structure combined with linear motor drives and direct drive systems, enabling zero mechanical backlash and high dynamic response during non-circular interpolation. Precise C-X axis synchronization supports stable contour generation for non-round profiles. Suitable for grinding polygon punches, small camshafts, eccentric pins, and precision medical components, where consistent μm-level accuracy and repeatability are required.

CAPACITY
Swing Over Table: Ø270 mm
Distance Between Centers: 400 mm
Max. Grinding Dia.: Ø250 mm
Max. Grinding Length: 400 mm

MACHINE FEATURE

• USER FRIENDLY OPERATION SYSTEM: Equipped with SIEMENS SINUMERIK ONE control system. Built-in TOPKING graph conversational interface including crankshaft and camshaft grinding applications. Optional CAD/CAM software for graphical programming and custom grinding graphics.
• RIGID MACHINE BASE: High rigidity Meehanite cast iron base with annealing/aging treatment; slideways treated by high-frequency hardening and precision grinding for deformation-free and wear-resistant construction.
• WORK TABLE: Permanently bolted cross-slide design to reduce travel, improving working speed and precision stability.
• CROSS-SLIDER DESIGN & AXIS GUIDANCE: X and C axes as cross-sliders to reduce machine space. X-axis driven by linear motor with linear guides and high-resolution linear scale for stable repeatability. Two axes protected by enclosed telescopic covers.
• X-AXIS DRIVEN BY LINEAR MOTOR: Direct-drive linear motor on X axis for no backlash and precise position control; closed-loop control with linear scale; moving speed up to 15000 mm/min; linear motor design reduces wear and increases efficiency.
• WHEELHEAD CONSTRUCTION: Built-in spindle for grinding wheel with lightweight wheelhead seat to reduce resonance; built-in spindle monitors temperature to prevent thermal deformation; high-speed rotation with rapid acceleration/deceleration and improved energy efficiency.
• WORKHEAD SPINDLE: Working spindle with Direct Drive motor and precision angle encoder; high angle resolution ±0.2"; supports micro-adjustment for taper correction.
• FINE ADJUSTMENT TAILSTOCK: Automatic oil bath lubrication and oil level gauge; enables taper correction in centers fixed grinding mode.

SPECIFICATION
Capacity: Swing Over Table — Ø270 mm; Distance Between Centers — 400 mm; Max. Grinding Diameter — Ø250 mm; Max. Grinding Length — 400 mm; Max. Load Held Between Centers — 15 kg; Center Height (from table to center tip) — 135 mm.
Grinding Wheel: Size (O.D. x width x I.D.) — Ø405 x 50 x Ø127 mm; Linear Velocity — 45 m/sec.
Worktable: Swiveling Angle — -1° ~ +8°.
Workhead: Swiveling Angle — Fixed Type; Center Tapper — MT. No. 3; Spindle Speed — 10 ~ 300 rpm; Max. Load of Spindle (tool holder included) — 5 kgs (max. length: 100 mm).
Tailstock: Center Tapper — MT. No. 3; Center Moving — Manual type; Tailstock Stroke — 25 mm; Barrel Stroke — ±30 μm; Cylindricity with Micro Adjustment — ±0.03 mm.
X-axis Travel: Max. Travel — 300 mm; Rapid Feedrate Speed — 20000 mm/Min; Auto. Feeding Speed — 6000 mm/Min; Min. Feeding Setting — 0.001 mm.
Z-axis Travel: Max. Travel — 580 mm; Rapid Feedrate Speed — 10000 mm/Min; Auto. Feeding Speed — 6000 mm/Min; Min. Feeding Setting — 0.001 mm.
Drive Motors: Grinding Wheel Spindle — 11.4 kW (built-in motor); Workhead Spindle — 22.3 Nm (direct drive motor); Wheelhead Feed X-axis — 1750 N (linear motor); Table Feed Z-axis (servo motor) — 2.29 kW; Hydraulic Oil Pump — 0.37 kW; Coolant Pump — 0.37 kW.
Tank Capacities: Lubrication Oil Tank 1 — 18 L; Hydraulic Oil Tank — 18 L; Coolant Tank — 107 L.
Machine: Dimension — 2300 x 2210 x 1960 mm; Machine Weight — 4300 kg; Center Height (from floor to center tip) — 1110 mm.

STANDARD ACCESSORIES

• CNC Controller (SIEMENS SINUMERIK ONE) x 1 set
• Grinding Wheel and Flange x 1 set
• Grinding Wheel Inverter x 1 set
• Diamond Tool Holder (workhead spindle mounted type) x 1 set
• Cooler system for work-spindle servo x 1 set
• Carbide Tipped Work Centers (2 pcs/set) x 1 set
• Micro Adjustment Tailstock x 1 set
• Linear Motor for X-axis x 1 set
• Linear Scale for X-axis x 1 set
• Rotary Scale for C-axis x 1 set
• CAD-CAM Software Graphical Programming x 1 set
• Electric System x 1 set
• Fully Enclosed Splash Guard x 1 set
• Lubrication System x 1 set
• Coolant System x 1 set
• Oil Mist Collector x 1 set
• Work Lamp x 1 set
• Tools (Leveling pad) and Tool Box x 1 set

OPTIONAL ACCESSORIES

• Cam-locked Driving Dogs
• Work Holder (2 pcs/set)
• 2-point Steady Rest
• Adjustable 3-jaw Scroll Chuck
• Adjustable 4-jaw Scroll Chuck
• Diamond roller dressing device (flange-connected)
• Diamond roller dressing device (tailstock mounted)
• Air Cylinder Tailstock
• Wheel Balancing Stand and Arbor
• Auto. Grinding Wheel Balancer
• Spare Grinding and Wheel Flange
• Touch Probe Gauge
• Gap Control
• Jib Crane for Loading / Unloading G.W.
• Customized Workpiece Drive Fixture
• Magnetic Coolant Separator
• Paper Filter

Caractéristiques / spécifications techniques

• Swing Over Table: Ø270 mm
• Distance Between Centers: 400 mm
• Max. Grinding Diameter: Ø250 mm
• Max. Grinding Length: 400 mm
• Max. Load Held Between Centers: 15 kg
• Center Height (from table to center tip): 135 mm
• Grinding Wheel Size: Ø405 x 50 x Ø127 mm
• Grinding Wheel Linear Velocity: 45 m/sec
• Worktable Swiveling Angle: -1° ~ +8°
• Workhead Spindle Speed: 10 ~ 300 rpm
• Workhead Spindle Max Load (tool holder): 5 kg (max length 100 mm)
• Tailstock Stroke: 25 mm
• Barrel Stroke: ±30 μm
• Cylindricity with Micro Adjustment: ±0.03 mm
• X-axis Max Travel: 300 mm; Rapid Feedrate: 20000 mm/min; Auto Feed: 6000 mm/min; Min Setting: 0.001 mm
• Z-axis Max Travel: 580 mm; Rapid Feedrate: 10000 mm/min; Auto Feed: 6000 mm/min; Min Setting: 0.001 mm
• Grinding Wheel Spindle Power: 11.4 kW (built-in)
• Workhead Spindle Torque: 22.3 Nm (direct drive)
• Wheelhead Feed X-axis Force: 1750 N (linear motor)
• Table Feed Z-axis Motor: 2.29 kW (servo)
• Hydraulic Oil Pump: 0.37 kW; Coolant Pump: 0.37 kW
• Lubrication Oil Tank: 18 L; Coolant Tank: 107 L
• Machine Dimension: 2300 x 2210 x 1960 mm
• Machine Weight: 4300 kg
• Center Height (floor to center tip): 1110 mm