Cylindrical and Internal Grinding Machine Ø320 × 1500 mm – Precision in Cylindrical Machining

The Cylindrical and Internal Grinding Machine Ø320 × 1500 mm is an advanced machine designed for precise grinding of external and internal cylindrical surfaces. Its solid construction and modern technologies ensure outstanding machining accuracy and reliability in demanding industrial environments.

Main Advantages of the Cylindrical and Internal Grinding Machine Ø320 × 1500 mm

The Cylindrical and Internal Grinding Machine Ø320 × 1500 mm is a versatile solution for industrial plants requiring precise machining of cylindrical parts with diameters up to 320 mm and lengths up to 1500 mm. Designed for professionals, it combines advanced technologies such as stepless spindle-speed control (25–220 rpm), automatic incremental feed (0.0025 mm), and a hydraulic table-feed system with adjustable pressure (0.9–1.1 MPa), with a massive structure that ensures stability and minimised vibration. The machine allows grinding of both external shaft surfaces (from 8 to 320 mm without a steady rest, 8–60 mm with a steady rest) and internal bores from 30 to 100 mm, making it ideal for a wide range of applications. Comprehensive standard equipment – including an internal grinding head and a three-jaw chuck (Ø200 mm) – and optional accessories such as a four-jaw chuck or diamond dresser further enhance its functionality. Key benefits include:

• High machining precision: Minimum manual and automatic feed of 0.0025 mm and precise cross feeds (coarse 0.01 mm, fine 0.0025 mm) ensure excellent surface finish.
• Versatility of applications: Capability to grind shafts with diameters of 8–320 mm and bores of 30–100 mm, with a maximum external-grinding length of 1500 mm and internal 125 mm.
• Stability and durability: The massive construction with a precision-ground head spindle and hydraulic drive system minimises vibration, ensuring stability even during intensive operation.
• Efficient hydraulic system: Hydraulic table feed with a speed range of 0.1–4 m/min and adjustable pressure (0.9–1.1 MPa) provides smooth, precise movement, improving machining efficiency.
• Low noise level: Use of screw pumps in the hydraulic system ensures quiet operation, increasing comfort in industrial environments.
• Flexible configuration: Extensive standard and optional equipment allows adaptation of the machine to specific production requirements.
• Ready for operation: The machine is fully prepared for immediate production start-up, minimising downtime.

Machine Construction and Technology

Rigid Structure and Precise Components

The Cylindrical and Internal Grinding Machine Ø320 × 1500 mm features a heavy-duty design providing stability when machining parts weighing up to 150 kg. Equipped with precision guides and a high-rigidity spindle in the grinding head, driven by a 5.5 kW motor, it works with a grinding wheel of Ø400 × 50 × Ø203 mm, enabling efficient machining of external cylindrical surfaces. The internal grinding head, operating at 10 000 rpm, ensures precise finishing of bores.

Advanced Feed System

The machine offers a maximum cross-travel of 246 mm and precise manual feeds: coarse 2 mm/rev and fine 0.5 mm/rev. Minimum manual and automatic feed of 0.0025 mm and wheel-wear compensation of 0.0025 mm guarantee high accuracy. The hydraulic table-feed system with a travel speed range of 0.1–4 m/min and adjustable pressure (0.9–1.1 MPa) ensures smooth motion, essential for precision operations.

Cooling System and Workholding

The cylindrical grinder is equipped with an efficient cooling system with a coolant tank that protects both the workpiece and the grinding wheel from overheating. The three-jaw chuck (Ø200 mm) and optional four-jaw chuck ensure secure clamping of components, improving safety and precision. The swivel angle of the working head is +90°, and the table rotation (3° to the right, 6° to the left) allows flexible adjustment for various grinding tasks.

Precision and Work Efficiency

The Cylindrical and Internal Grinding Machine Ø320 × 1500 mm ensures excellent surface finish due to precise feed control and stable construction. The maximum external grinding length is 1500 mm, and the internal 125 mm, enabling the machining of parts of various sizes. The circumferential speed of the grinding wheel (35 m/s) and stepless spindle-speed control (25–220 rpm) allow parameters to be adapted to specific requirements, ensuring smooth surfaces with minimal tolerances.

Applications of the Cylindrical Grinder

The Cylindrical and Internal Grinding Machine Ø320 × 1500 mm is designed for industrial workshops requiring precise machining of cylindrical components. It is used in:

• Machinery industry: Grinding of shafts, sleeves, and other cylindrical elements up to 1500 mm in length.
• Toolmaking industry: Production and reconditioning of precision cutting tools and injection moulds.
• Repair workshops: Regeneration of mechanical components such as drive shafts and hydraulic parts.
• Automotive industry: Grinding of shafts and bores in engine and transmission components.

Technical Specification

Technical Parameters

Headstock

Grinding Wheel Head

Internal Grinding Unit

Worktable

Hydraulic System

Standard Equipment

• Coolant tank
• Dresser
• Grinding wheel
• Balancing arbor
• 4 centres
• Stop block
• Open steady rest
• Tools for wheel removal
• Sealing ring
• Wheel balancing fixture
• User manual
• CE Declaration of Conformity
• Internal grinding head
• 3-jaw chuck
• Internal grinding nozzle

Optional Equipment

• Closed steady rest: Increases machining precision for smaller-diameter components.
• 4-jaw chuck: Expands clamping possibilities for irregularly shaped parts.
• Flanged grinding wheel: Dedicated for specialised grinding operations.
• Diamond dresser: Increases precision and extends grinding wheel service life.

Order Your Cylindrical Grinder Today

Boost your production efficiency with the Cylindrical and Internal Grinding Machine Ø320 × 1500 mm.