Editorial Technical Reference

Mold Assembly

This page explains how Mold Assembly is classified within Non-Metallic Mineral Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

The complete mold assembly used in ceramic tile pressing machines to form tiles under high pressure.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Mold Assembly

Definition
The mold assembly is a critical component of ceramic tile press machinery, consisting of multiple mold parts assembled together to create the precise cavity shape for forming ceramic tiles. It receives ceramic powder or slurry and applies pressure to compact it into the desired tile shape with specific dimensions, patterns, and surface textures. The assembly is designed to maintain tight dimensional tolerances and surface finish requirements, ensuring uniform tile thickness and quality. It is typically made from tool steel, hardened steel, and may include tungsten carbide inserts for enhanced wear resistance. The mold assembly operates within a defined range of parameters, including mold dimensions from 600×600 to 1200×1200 mm, operating pressure of 1.0–1.6 MPa, pressing force of 2000–8000 kN, dimensional tolerance of ±0.05 mm (per ISO 2768-m), surface roughness of 0.4–0.8 μm Ra (per ISO 4287), hardness of 48–52 HRC (per ASTM E18), operating temperature of 20–80°C, cycle time of 10–30 seconds, and mold weight of 500–2000 kg. Material grades may range from 42CrMo to H13, referencing GB/T 3077 and ASTM A681. These values are reference ranges and must be verified for the specific model and application with the legal manufacturer or supplier. The mold assembly is a wear part; its lifespan depends on material selection, operating conditions, and maintenance. Proper handling and regular inspection are essential to prevent premature failure and ensure consistent tile quality.
Working Principle
The mold assembly receives ceramic material in powder or slurry form. During the pressing cycle, hydraulic or mechanical pressure is applied to compact the material into the desired tile shape. The assembly maintains precise dimensional control throughout the cycle, ensuring uniform density and thickness. After pressing, the formed tile is released for subsequent drying and firing processes. The mold's design and material properties directly influence the tile's surface finish and dimensional accuracy.
Common Materials
Tool steel, Hardened steel, Tungsten carbide inserts
Technical Parameters
ParameterTypical rangeNotes & selection driver
Mold Dimensions (L×W×H)600×600–1200×1200 mmMatches tile size; larger molds require higher press tonnage.
Pressing Force2000–8000 kNDetermines tile density; insufficient force causes porosity.
Dimensional Tolerance±0.05 mmTighter tolerance ensures uniform tile thickness.ISO 2768-m
Surface Roughness0.4–0.8 μm RaAffects tile surface finish; lower is smoother.ISO 4287
Hardness (Mold Steel)48–52 HRCWear resistance; too low leads to early wear.ASTM E18
Operating Temperature20–80 °CAbove 80°C may cause thermal deformation.
Cycle Time10–30 sShorter cycle increases production rate.
Mold Weight500–2000 kgAffects handling and press capacity.
Material Grade42CrMo–H13H13 offers better heat resistance for high-volume production.GB/T 3077, ASTM A681

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

Components / BOM

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 500 bar (7,250 psi) - high-pressure tile pressing requirement
other spec: Slurry concentration: 30-50% solids by weight, Cycle time: 10-60 seconds per tile
temperature: Ambient to 80°C (176°F) - typical ceramic slurry processing range
Media Compatibility
✓ Ceramic clay slurry ✓ Porcelain body mix ✓ Stoneware composition
Unsuitable: Abrasive materials with high quartz content (>15%)
Sizing Data Required
  • Tile dimensions (length x width x thickness)
  • Required production capacity (tiles/hour)
  • Press tonnage and platen size

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Wear and scoring of mold surfaces
Cause: Abrasive particles in the plastic material, misalignment during assembly, or inadequate lubrication causing metal-to-metal contact
Corrosion and pitting
Cause: Exposure to corrosive chemicals in plastics (e.g., PVC, flame retardants), moisture ingress, or improper cleaning agents
Maintenance Indicators
  • Visible flash or burrs on molded parts indicating mold separation or wear
  • Unusual noises during operation such as grinding, scraping, or knocking sounds
Engineering Tips
  • Implement regular precision alignment checks and thermal expansion compensation to prevent misalignment damage
  • Apply specialized protective coatings (e.g., DLC, PVD) on critical surfaces and establish strict material contamination controls

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ANSI B11.19 - Performance requirements for safeguarding DIN 16749 - Plastics moulding tools

Quoted from the published standard.

Manufacturing Precision
  • Bore diameter: +/-0.01mm
  • Parallelism of plates: 0.02mm per 100mm
Quality Inspection
  • Dimensional verification with CMM
  • Hardness testing (Rockwell C scale)

Manufacturers of Mold Assembly

3 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

CHNZBTECH
Xian, Shaanxi, CN
Listed on the company's own website · profile compiled by CNFX from public sources
PTSMAKE
Dongguan, Guangdong, CN
Also makes: Hydraulic Cylinder
Listed on the company's own website · profile compiled by CNFX from public sources
SINO MOULD
Zhejiang, CN
Also makes: Battery Enclosure
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

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Frequently Asked Questions

What materials are used in the mold assembly?

The mold assembly is typically made from tool steel, hardened steel, and may include tungsten carbide inserts for wear resistance. Material grades can range from 42CrMo to H13, as referenced in GB/T 3077 and ASTM A681. Specific material selection depends on the application and must be confirmed with the supplier.

What is the typical pressing force range?

The pressing force range is 2000–8000 kN. The required force depends on the tile size and desired density. Insufficient force can lead to porosity in the tile. The exact force must be set according to the mold design and verified with the manufacturer.

How does operating temperature affect the mold?

The recommended operating temperature is 20–80°C. Above 80°C, thermal deformation may occur, affecting dimensional accuracy. It is important to monitor temperature during operation and ensure cooling if necessary.

What maintenance is required for the mold assembly?

Regular inspection for wear, cleaning, and proper lubrication are essential. Check dimensional tolerances and surface finish periodically. Replace worn parts as needed. Always follow the manufacturer's maintenance guidelines.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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