Technical Product Introduction
At Dongmo Precision, we engineer high-performance Anchor Rod Tray Moulds designed to withstand the extreme tonnages required for forming heavy-gauge steel. Mining anchor trays (domed or flat) are critical safety components that must bear immense loads in underground support systems.
Our tooling solutions are specifically optimized for processing 6mm to 10mm carbon steel plates. By integrating advanced stress-relief technologies and high-impact tool steels, we ensure that each mould maintains its dimensional integrity and edge sharpness through hundreds of thousands of high-pressure strokes.
Technical Specifications
| Feature | Professional Grade |
| Tray Types | Domed, Flat, Butterfly, Ribbed |
| Material Thickness | 5.0mm – 12.0mm (Heavy-duty steel plates) |
| Tooling Material | DC53 / SKD11 / Cr12MoV (High-toughness series) |
| Hardness Control | Vacuum Heat Treated to HRC 58-62 |
| Mould Structure | High-Rigidity Cast Steel Base / Forged Steel Die Sets |
| Surface Treatment | PVD CrN / Nitriding for heavy-load wear resistance |
| Press Compatibility | 400T – 1600T Hydraulic or Mechanical Presses |
Unique Engineering Advantages
A. High-Load Stress Management
Forming a 10mm steel plate into a domed anchor tray generates massive internal stress within the mould. We utilize FEM (Finite Element Method) analysis to identify potential fatigue zones. Our die bases are reinforced with extra-thick forged plates to prevent the "breathing" effect during stamping, ensuring consistent product height.
B. Anti-Cracking Punch Design
The central hole piercing and the domed forming of an anchor tray often lead to punch chipping. We apply a Cryogenic Treatment (-196°C) to our punches to refine the carbide structure, significantly increasing the fracture toughness and service life compared to standard heat treatment.
C. Specialized Lubrication Channels
To manage the intense heat generated during the deep drawing of heavy-gauge plates, our Anchor Rod Tray Moulds feature integrated lubrication micro-grooves. This reduces friction, prevents material pick-up (galling), and ensures a smooth surface finish on the tray's dome.
D. Precision Centering System
Our moulds incorporate over-sized guide pillars and bronze bushes with solid lubricants. This ensures that the upper and lower dies remain perfectly aligned even under eccentric loading, which is a common challenge when stamping heavy industrial parts.
Manufacturing Sequence
Blanking / Shearing: Precise cutting of the heavy-duty plate squares.
Domed Forming: Deep drawing to achieve the load-bearing dome structure.
Central Hole Piercing: High-precision punching for the anchor bolt clearance.
Ribbing / Strengthening: (Optional) Forming reinforcement ribs for higher load ratings.
Final Trimming: Ensuring uniform edges for site installation.
Professional FAQ
Q: Can your mould handle high-tensile steel like Q355 or Grade 60? A: Absolutely. For high-tensile mining trays, we adjust the die clearance and drawing radii to account for the increased yield strength and springback, preventing edge cracks in the final product.
Q: How do you prevent the punch from sticking in thick plates? A: We use high-force nitrogen gas springs for the stripper plates. This provides the necessary ejection force to cleanly release 10mm+ plates from the punch, maintaining high production speeds.
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