Valve Spindle and Seat Grinding Machine / VGT

Machine designed for grinding of valves and valve seats on 2-stroke diesel engines.

Anti-vibration dampers
Self-centering of valve and seat
Grinding angles set according to customer’s requirement
Diamond dresser for grinding wheel and full set of tools included
Electrically driven

Automatic Valve Spindle & Seat Grinding Machine

VGT: Valve Spindle and Seat Grinding for 2-Stroke Diesel Engines

The VGT automatic valve spindle and seat grinding machine is designed for high-precision grinding of valve spindles and seats on 2-stroke diesel engines. This versatile machine is suitable for crosshead engine exhaust valves and offers a range of adjustable features to meet the specific requirements of different valve and seat angles.

Key Features of the Valve Spindle and Seat Grinding Machine:

Precision Grinding: Equipped with a high-precision grinding spindle and automatic centering system, the VGT ensures consistent, high-quality results.
Robust Construction: Built to withstand demanding conditions, the VGT is vibration-resistant, making it ideal for use both onboard and ashore.
Customizable Grinding Angles: The machine is adjustable to meet customer-specific valve and seat angle requirements, making it a flexible solution for various engine types.
Self-Centering System: This innovative system guarantees accurate valve and seat positioning during the grinding process.
Easy Operation: The electrically driven VGT is designed for ease of use, ensuring reliable performance with minimal operator effort.
Anti-Vibration Dampers: The VGT incorporates advanced anti-vibration dampers to maintain precision even in harsh operating conditions.
Complete Tool Set: The machine comes with a diamond dresser for the grinding wheel, as well as a full set of necessary tools to carry out the grinding process.

Specifications:

Valve Stem Diameter: Up to 96 mm
Grinding Angles: Customizable based on the engine requirements
Pneumatic Operation: The VGT operates pneumatically, ensuring efficient and controlled grinding.

Compatible Engine Brands:

The VGT valve grinding machine is compatible with a range of 2-stroke diesel engine makers, including:

MAN B&W
Mitsubishi
Wärtsilä

Whether you are looking to maintain valves onboard a ship or perform grinding work in a workshop, the VGT machine offers a reliable and efficient solution for valve maintenance in diesel engines.

Interested in knowing more about our range of Grinding & Machining products? Learn more here.

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Technical Specifications

Specification	Feature
Machine capacity	Up to 96 mm valve stem diameter
Weight	250 kg
Max dimensions	H: 1300 – 1700 mm, W: 700 – 960 mm
Electric power supply	3-phase 220 – 250 V 50/60, Hz 3-phase 380 – 440 V 50/60 Hz
Noise level	81 dB (A) / 80 dB (C)
Normal grinding time	10 – 20 min
Power requirement	1.3 kW

For complete technical specifications, download the product sheet or contact our technical team.

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Accessories & Consumables

Accessories & Consumables

Grinding Wheels / CBN

Choosing the right grinding wheels for a specific job is the key aspect for achieving superior grinding results. Chris-Marine’s grinding wheels have been carefully selected, tested and proven for each type of metal alloy, surface finish and workload.
Machining & Overhaul

Surface Grinding Machine / CPM

Pneumatically driven surface grinding machine for medium bore diesel engines.
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Honing machine for restoration of medium speed engine cylinder liner geometry and surface structure. For workshop and in-situ use.
Cylinder Heads

Working Rig Series / WR

The Chris-Marine range of working rigs has been developed for safe and efficient maintenance of 2-stroke and 4-stroke engine parts. The working rigs are safe and easy to use with a self-locking turning gear. They facilitate a multitude of maintenance operations such as dismantling and cleaning of exhaust valve cages and cylinder heads, as well as when operating a valve seat grinding machine.
Cleaning & Surface Preparation

Spray Washing Machine / SWM

Machine for cleaning of small and medium sized components.