Cylindrical grinding machine X-3550CAM

camshaftfor shaftworkpiece

INTRODUCTION
The TOPKING X-3550CAM is a centre-type external cylindrical grinding machine specifically designed for eccentric and non-circular part grinding, including camshafts, crankshafts and polygonal punches. It is intended for automotive, automation and tooling production environments where precise, repeatable non-round profiles are required. The machine is controlled by SIEMENS SINUMERIK ONE with a TOPKING graphical conversational interface for efficient program setup and process control.

CAPACITY

• Swing over table: Ø370 mm
• Distance between centers: 500 mm
• Max. grinding diameter: Ø350 mm
• Max. grinding length: 500 mm
• Max. load between centers: 150 kg
• Center height (table to centre tip): 185 mm

MACHINE FEATURES
User-friendly control
■ SIEMENS SINUMERIK ONE CNC with TOPKING GUI for graphical conversational programming; optional CAD/CAM support for preprogramming custom grinding profiles.

Rigid machine base
■ Meehanite cast-iron base with annealing and aging treatment. Hardened and precision-ground slideways with 1V1 flat guideways for minimal deformation and high wear resistance.

Cross-slide X–Z design
■ Cross-slide configuration reduces required footprint. Z-axis wheelhead traverse and X-axis linear-motor drive combined with box-way support to withstand heavy grinding forces and ensure stability.

X-axis linear motor
■ Direct-drive linear motor on X-axis for zero backlash, closed-loop control with linear scale, and rapid moving speeds up to 15000 mm/min for high positioning accuracy.

Wheelhead and spindle
■ High-quality alloy steel spindle (SNCM-220) with precision bearings; multiple heat treatments and precision grinding produce surface hardness > HRC62 for long-term accuracy.

Workhead (C-axis) and tailstock
■ Direct-drive workhead with precision angle encoder (angle tolerance ±0.2″) and micro-adjustment for taper correction. Tailstock features automatic oil-bath lubrication and fine adjustment for center-fixed grinding.

Wheel dressing & handling
■ Multiple dressing options with graphical dressing interface; optional diamond roller dressers. Standard jib crane for wheel loading/unloading with splash guard.

STANDARD ACCESSORIES

• CNC controller: SIEMENS SINUMERIK ONE x1
• Grinding wheel and flange x1 set
• Grinding wheel inverter x1
• Diamond tool holder (worktable mounted) x1
• Cooler for work-spindle servo x1
• Jib crane for wheel x1
• Carbide-tipped work centers (2 pcs/set) x1
• Micro adjustment tailstock x1
• Linear motor for X-axis x1
• Linear scale for X-axis x1
• Rotary scale for C-axis x1
• CAD/CAM graphical programming software x1
• Electrical system x1
• Fully enclosed splash guard x1
• Lubrication system x1
• Coolant system x1
• Oil mist collector x1
• Work lamp x1
• Tools and toolbox x1

OPTIONAL ACCESSORIES

• Cam-locked driving dogs
• Work holders (2 pcs/set)
• 2-point steady rest
• Adjustable 3-jaw chuck
• Adjustable 4-jaw chuck
• Diamond roller dresser (workhead flange type)
• Diamond roller dresser (tailstock mounted)
• Hydraulic tailstock
• Wheel balancing stand and arbor
• Automatic wheel balancer
• Spare grinding wheel and flange
• Touch probe gauge
• Gap control (collision protection)
• Customized workpiece drive fixtures
• Magnetic coolant separator
• Paper filter system

TECHNICAL SPECIFICATIONS

• Model: X-3550CAM
• Brand: TOPKING
• Application: eccentric, camshaft, crankshaft and polygon punch grinding
• Controller: SIEMENS SINUMERIK ONE
• Main spindle power: 11 kW (induction)
• X-axis drive: linear motor, max travel 300 mm, rapid 20000 mm/min
• Z-axis travel: 750 mm, rapid 10000 mm/min
• Max. grinding dia.: Ø350 mm — Max. grinding length: 500 mm
• Max. load between centers: 150 kg
• Grinding wheel size: Ø610 x 50 x Ø304.8 mm — linear velocity 45 m/sec
• Machine weight: 8300 kg — Dimensions (L×W×H): 3300 × 3200 × 2540 mm