Cylindrical grinding machine X-3550

workpiecehorizontalCNC

INTRODUCTION
The X-3550 is a CNC cylindrical grinding machine from the X series, designed for precise and efficient external cylindrical grinding of small to large components. It combines a compact cross-slide layout, a high-rigidity machine base and a heavy-duty spindle and tailstock to increase load capacity and stability for demanding industrial applications.

CAPACITY
Swing Over Table: Ø370 mm
Distance Between Centers: 500 mm
Max. Grinding Diameter: Ø350 mm
Max. Grinding Length: 500 mm
Max. Load Held Between Centers: 200 kg

MACHINE FEATURES
USER-FRIENDLY OPERATION SYSTEM
Built-in high-performance CNC controller with graphical user interface (GUI) for graphical process setup, simplified editing of grinding and dressing sequences and reduced need for manual G/M code programming.

RIGID MACHINE BASE

• Meehanite cast iron base with annealing and aging treatment for high rigidity and thermal stability.
• Slideways hardened by high-frequency treatment and precision ground for excellent wear resistance and accuracy.
• Robust sliding-seat mechanism with 1 V 1 flat structure ensuring precision and deformation-free performance.

WORK TABLE / CROSS-SLIDER DESIGN
The bolted work table and cross-slide X/Z layout minimize travel distances to save floor space and improve dynamic response. Enclosed telescopic covers protect transmission components from grinding debris and coolant.

HIGH RIGIDITY SLIDEWAY
High-rigidity hard rail structure with large-diameter grade ball screws to maintain precision under heavy loads and reduce vibration.

WHEELHEAD CONSTRUCTION

• Precision bearings in the wheel spindle for long service life and easy maintenance.
• Spindle material SNCM-220 with heat treatment and precision grinding, surface hardness above HRC62 for wear resistance.

WORKHEAD AND TAILSTOCK

• Heavy-duty workhead and tailstock design to increase overall load capacity.
• Servo-driven workhead with stepless speed variation; optional hydraulic tailstock.
• Flat air-pressure design on workhead and tailstock to reduce friction and facilitate movement.
• Central cooling system to prevent heating and deformation at center contact surfaces.

DIAMOND TOOL HOLDER (WORK TABLE MOUNTED)
Standard on X-35 series: diamond dressing device fixed to the swivelling work table to avoid re-calibration errors after table angle adjustments. Multiple diamond holder options to match workpiece requirements.

GRINDING CYCLE
Illustrated grinding and dressing cycles are available for process reference and operator guidance.

SPECIFICATION

• Swing Over Table: Ø370 mm
• Distance Between Centers: 500 mm
• Max. Grinding Diameter: Ø350 mm
• Max. Grinding Length: 500 mm
• Center Height (table to center tip): 185 mm
• Grinding Wheel Size: Ø610 x 50 x Ø254 mm; Linear Velocity: 45 m/sec
• Workhead Spindle Speed: 10 ~ 300 rpm; Max. Spindle Load (incl. holder): 35 kg (Max. Length: 150 mm)
• Tailstock: MT No.5, Manual center moving, Stroke 50 mm
• X-axis Travel: 300 mm; Rapid Feed: 10000 mm/min; Auto Feed: 0.001 ~ 2000 mm/min
• Z-axis Travel: 750 mm; Rapid Feed: 10000 mm/min; Auto Feed: 0.001 ~ 2000 mm/min
• Drive Motors: Grinding Spindle 11 kW; Workhead Spindle 2.9 kW (AC servo); X & Z Feed Motors 3.5 kW (AC servo)
• Tank Capacities: Lubrication 15 L; Hydraulic (option) 18 L; Coolant 160 L
• Machine Dimension (L x W x H): 3300 x 3025 x 2540 mm; Net Weight: 8000 kg; Center Height (floor to center tip): 1130 mm

ACCESSORIES - STANDARD

• CNC Controller (Mitsubishi) x1 set
• Grinding Wheel and Flange x1 set
• Carbide Tipped Work Centers (2 pcs) x1 set
• Diamond Tool Holder (worktable mounted) x1 set
• Jib Crane for Loading/Unloading Grinding Wheel
• Linear Scale for X-axis x1 set
• Grinding Wheel Inverter x1 set
• Electric System x1 set
• Fully Enclosed Splash Guard x1 set
• Lubrication System x1 set
• Coolant System x1 set
• Work Lamp x1 set
• Tools (Leveling pad) and Tool Box x1 set

ACCESSORIES - OPTIONAL

• Hydraulic Tailstock
• Cam-locked Driving Dogs
• Work Holder 2 pcs/set
• 2-point Steady Rest
• Adjustable 3-point Steady Rest
• Adjustable 3-jaw Scroll Chuck
• Adjustable 4-jaw Scroll Chuck
• Wheel Balancing Stand and Arbor
• Auto. Grinding Wheel Balancer
• Spare Grinding Wheel and Flange
• Diamond Roller Dressing Device (worktable mounted)
• Diamond Roller Dressing Device (tailstock mounted)
• Touch Probe Gauge
• Auto. In-Process Gauge
• Gap Control
• Linear Scale for Z-axis
• Magnetic Coolant Separator
• Paper Filter
• Oil Mist Collector