Cylindrical and Internal Grinding Machine Ø200x750 mm – Precision in cylindrical machining

The Cylindrical and Internal Grinding Machine Ø200x750 mm is an advanced machine designed for precision grinding of both external and internal cylindrical surfaces. Its solid construction and modern technology guarantee high machining accuracy and reliability under demanding industrial conditions.

Main advantages of the Cylindrical and Internal Grinding Machine Ø200x750 mm

The Cylindrical and Internal Grinding Machine Ø200x750 mm is a versatile solution for manufacturing plants that require precise machining of cylindrical components with diameters up to 200 mm and lengths up to 750 mm. Designed for professional use, it combines advanced technologies such as stepless spindle speed control and a hydraulic feed system with a robust 4.3-ton construction, ensuring stability and efficiency. The machine enables external grinding of shafts and internal grinding of bores with diameters ranging from 25 to 100 mm, making it ideal for a wide range of industrial applications. Extensive standard equipment, including an internal grinding head and 3-jaw chuck, enhances its functionality, while fine feed adjustments (0.0025 mm) guarantee excellent surface finish. Key benefits include:

• High machining accuracy: Minimum feed of 0.0025 mm and precise cross-feed adjustments (coarse 0.01 mm, fine 0.0025 mm) ensure exceptional surface quality.
• Versatility of applications: Capable of grinding shafts with diameters of 5–200 mm and internal bores of 25–100 mm, with maximum external grinding length of 750 mm and internal 125 mm.
• Stability and durability: The 4.3-ton structure minimises vibrations, ensuring consistent accuracy during intensive operation.
• Efficient hydraulic system: Hydraulic table feed with a speed range of 0.1–4 m/min provides smooth and precise motion for improved machining efficiency.
• Flexible configuration: Extensive standard and optional accessories, such as steady rests or a diamond dresser, allow easy adaptation to specific needs.
• Ready for operation: Fully prepared for immediate production use, minimising downtime and optimising workflow.

Construction and technology

Rigid frame and precision components

The Cylindrical and Internal Grinding Machine Ø200x750 mm features a heavy-duty 4.3-ton structure with overall dimensions of 2750x2030x2050 mm, ensuring outstanding stability during machining. Equipped with precision guideways and a spindle driven by a 4 kW motor, it operates with a grinding wheel sized 400x50x203 mm for efficient external grinding. The internal grinding head, powered by a 1.1 kW motor running at 10,000/15,000 rpm, provides precise finishing of internal bores.

Advanced feed system

The machine offers a maximum cross-feed of 205 mm and precise manual feeds: coarse 2 mm/rev and fine 0.5 mm/rev. The minimum feed of 0.0025 mm and wheel wear compensation of 0.0025 mm ensure high machining accuracy. The hydraulic table feed system with a range of 0.1–4 m/min ensures smooth motion essential for precision applications.

Cooling system and workholding

The cylindrical grinder is equipped with an efficient cooling system featuring a 25 L/min pump that protects both the workpiece and grinding wheel from overheating. A 3-jaw chuck and rotating headstock with MK4 taper ensure secure clamping of components, enhancing both safety and precision. The +90° head swivel and table rotation (3° right, 8° left) allow flexible adaptation for various machining tasks.

Precision and performance

The Cylindrical and Internal Grinding Machine Ø200x750 mm guarantees superior surface finish thanks to precise feed control and a stable structure. The maximum external grinding length is 750 mm, and internal 125 mm, enabling the machining of parts in diverse sizes. The wheel surface speed of 35 m/s and stepless spindle speed control of 25–380 rpm allow fine tuning for specific requirements, ensuring perfectly smooth surfaces with minimal tolerances.

Applications

The Cylindrical and Internal Grinding Machine Ø200x750 mm is intended for industrial environments requiring precise machining of cylindrical parts. It is ideal for:

• Machinery industry: Grinding of shafts, sleeves, and other cylindrical elements up to 750 mm in length.
• Toolmaking industry: Manufacturing and reconditioning of precision cutting tools and injection moulds.
• Repair workshops: Refurbishing of machine components such as drive shafts and hydraulic parts.
• Automotive industry: Machining of shafts and bores in engine and drivetrain components.

Technical specifications

Technical data

Headstock

Grinding wheel

Internal grinding

Table

Tailstock

Motors

Machine

Standard equipment

• Coolant tank
• Dresser
• Grinding wheel
• Balancing arbor
• Centres (4 pcs)
• Stopper
• Wheel removal tools
• Sealing ring
• Balancing fixture
• CE declaration
• Internal grinding head
• 3-jaw chuck
• Internal grinding nozzle

Optional equipment

• Open steady rest: Enables stable grinding of long shafts.
• Closed steady rest: Improves accuracy for smaller diameters.
• 4-jaw chuck: Allows clamping of irregularly shaped parts.
• Flanged grinding wheel: Dedicated for specialised grinding tasks.
• Diamond dresser: Increases precision and grinding wheel life.

Order your cylindrical grinder today

Boost your production efficiency with the Cylindrical and Internal Grinding Machine Ø200x750 mm. Contact us for a detailed quotation or to arrange a demonstration. Choose precision and reliability – choose CORMAK cylindrical grinders!