Product Overview

The MZ-1200 is a large-diameter portable valve grinding machine designed for on-site maintenance of large gate valve seats and gate valve discs.

With an adjustable grinding plate and telescopic-arm configuration, the machine provides flexible coverage across a wide grinding range from Φ600 to 1,330 mm.

The portable structure allows maintenance teams to restore large valve sealing surfaces directly at the installation site, reducing valve removal requirements and downtime.

Applications

• Large gate valve seats

• Large gate valve discs

• Large industrial valve sealing surface restoration

• On-site valve maintenance

Product Features

• Adjustable grinding plate configuration

• Telescopic arms for different grinding ranges

• Designed for large gate valves up to DN1200

• Extended maximum grinding depth

• Variable-speed electric drive

• Suitable for power plants, petroleum, petrochemical, and industrial applications

Technical Specifications

Model: MZ-1200

Applications: Large gate valve seats and gate valve discs

Grinding range: Φ600–1,330 mm

Valve size: DN600–1200 (24″–48″)

Maximum grinding depth: 2,000 mm

Minimum valve opening: 180 mm

Power supply: AC 220 V / 50 Hz

Motor power: 1,150 W

Speed control: Variable speed

Equipment weight: 350 kg

Grinding Bracket Selection

160 mm bracket: Φ600–730 mm

260 mm bracket: Φ730–930 mm

360 mm bracket: Φ930–1,130 mm

460 mm bracket: Φ1,130–1,330 mm

Model Selection Information

The valve size range is provided for reference only. The correct machine configuration should be selected according to the actual sealing diameter, valve structure, valve opening size, and installation conditions.

Please provide the following information for technical recommendation:

• Valve type

• Valve size and pressure rating

• Actual sealing-surface diameter

• Gate valve seat and disc dimensions

• Minimum valve opening

• Required grinding depth

• Valve drawings or clear photos

Typical Industries

The MZ-1200 is widely used in power generation, petroleum, petrochemical, chemical processing, metallurgy, shipbuilding, water treatment, and other industrial valve maintenance applications.

Technical Support

We provide technical documentation, product selection assistance, operation guidance, and after-sales support.

Please contact us with your valve information and maintenance requirements for a suitable grinding solution.