Lower Plate / Moving Plate (Slide Gate): Thickness 10-50 mm

Component Specifications

Definition

The Lower Plate/Moving Plate is a critical sliding component in slide gate flow control systems, designed to precisely regulate the flow of materials (powders, granules, liquids) through controlled linear displacement. This plate interfaces with a stationary upper plate to create adjustable openings, enabling accurate flow modulation in industrial processes.

Working Principle

Operates through linear sliding motion along precision guides or rails, creating variable apertures between the moving plate and stationary counterpart. Hydraulic or pneumatic actuators typically drive the plate's position, with position feedback systems ensuring precise flow control. The plate's movement directly correlates to flow area, following proportional control principles.

Materials

High-wear resistant materials: 304/316 stainless steel (food/pharma), hardened tool steel (abrasive materials), tungsten carbide coatings (extreme wear), ceramic composites (corrosive environments). Surface finishes: Ra ≤ 0.8μm for sealing surfaces.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Thickness	10-50 mm
Actuation Force	500-5000 N
Pressure Rating	Up to 10 bar
Surface Hardness	HRC 45-60
Flatness Tolerance	≤ 0.05 mm/m
Operating Temperature	-20°C to 400°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 12100, ISO 13849, DIN 2458, DIN 2501

Parent Products

This component is used in the following industrial products

Flow Control Device (Slide Gate or Stopper Rod)

A device used to regulate the flow of molten steel from the tundish to the mold during continuous casting.

View Product Details

Engineering Analysis

Risks & Mitigation

Wear-induced leakage
Plate jamming
Seal failure
Corrosion damage
Thermal expansion issues

FMEA Triads

Trigger: Abrasive material flow
Failure: Surface wear leading to increased clearance and leakage
Mitigation: Apply wear-resistant coatings, implement regular thickness monitoring

Trigger: Improper alignment during installation
Failure: Increased friction and eventual jamming
Mitigation: Use precision alignment tools, verify flatness after installation

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Flatness: ±0.05mm, Parallelism: ±0.03mm, Surface finish: Ra 0.4-0.8μm

Test Method

Coordinate measuring machine (CMM) verification, helium leak testing for seals, wear testing per ASTM G65

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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Manufacturers of Lower Plate / Moving Plate (Slide Gate)

Manufacturer profiles associated with Lower Plate / Moving Plate (Slide Gate).

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Frequently Asked Questions

What maintenance is required for slide gate plates?

Regular inspection for wear, cleaning of sealing surfaces, lubrication of guides, and replacement when flatness exceeds 0.1mm tolerance.

How do I select the right material for my application?

Consider material abrasiveness, temperature, corrosion potential, and required surface finish. Stainless steel for sanitary applications, hardened steel for abrasives.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Lower Plate / Moving Plate (Slide Gate)