IMPA: 651021

Box Type Surface Plates for Marine Precision Measurement

Our Box Type Surface Plates, identified under IMPA 651021, are precision measuring tools designed for marine engineering, ship repair, and calibration workshops. These plates feature a robust box-shaped casting with internal ribbing for enhanced rigidity and long-term dimensional stability. They are essential for accurate inspection, layout, and marking-off of components in demanding marine environments.

Manufactured from high-grade stress-relieved cast iron, each plate is precision ground to exacting flatness tolerances, ensuring reliable reference surfaces for gauges and instruments. The protective coating provides resistance to corrosion and wear, making them ideal for onboard and shore-based use. Available in a range of standard sizes to suit various industrial and marine applications.

Whether used in engine rooms, maintenance decks, or dedicated metrology rooms, these box type surface plates offer the accuracy and durability required by marine professionals. Each plate is carefully handled and delivered ready for use, with optional calibration certificates available upon request.

Key Features

Technical Specifications

SpecificationDetails
Product TypeBox Type Surface Plate
IMPA Code651021
MaterialHigh-grade stress-relieved cast iron
Surface FinishGround to ISO 8512-2 Grade 0 flatness tolerance
Standard Sizes300x300 mm, 400x400 mm, 500x400 mm, 630x400 mm, 800x500 mm
Thickness45 mm to 80 mm (depending on size)
Flatness AccuracyUp to 0.005 mm per meter
ConstructionBox-type with internal ribbing
Protective CoatingRust-resistant, non-magnetic
CertificationCalibration certificate available on request

Frequently Asked Questions

What is a box type surface plate used for?

A box type surface plate is used as a stable reference plane for inspection, marking off, and precision measurement of components. Its rigid construction ensures a true flat surface for accurate readings with gauges and indicators.

What accuracy grades are available?

Our box type surface plates are manufactured and calibrated to ISO 8512-2 Grade 0, which provides a flatness tolerance of approximately 0.005 mm per meter. This makes them suitable for high-precision marine engineering applications.

How do I maintain a surface plate on board a ship?

To maintain accuracy and prevent corrosion, keep the surface clean and lightly coated with a thin layer of rust-preventive oil. Use a soft brush or cloth to remove debris, and avoid dropping heavy objects on the plate. Periodic re-calibration is recommended to ensure continued performance.

Can you supply surface plates with calibration certification?

Yes, calibration certificates traceable to national standards can be provided for any plate upon request. Please contact our sales team for details and pricing.

Inquire About This Product

Contact us for pricing, availability, and bulk orders:

📧

📞 [Phone protected by JavaScript]

💬

💚 Add on WeChat

Open WeChat and add this ID:

Select Language