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The 7500T dummy block and front beam support ring are critical wear parts in large-tonnage aluminium extrusion presses (≥7,500 tons). Designed to work together seamlessly, the dummy block seals the billet container during extrusion, while the front beam support ring ensures precise alignment and stabilises the dummy block’s movement. Manufactured from premium H13 hot work tool steel and treated with vacuum heat treatment, our tooling delivers superior thermal fatigue resistance, high hardness (48‑52 HRC), and extended service life – helping extrusion plants reduce downtime and lower per‑ton production costs.
Heavy‑Duty Construction for 7500T Presses
Specifically engineered for large extrusion lines, this 7500T dummy block withstands extreme pressures and repeated thermal cycling without deformation or cracking.
Precision Front Beam Support Ring
The front beam support ring maintains perfect coaxial alignment between the dummy block and the container bore, preventing metal backflow and protecting the main ram and stem from damage.
High‑Grade H13 Tool Steel
Made from H13 hot work tool steel, our components offer excellent red hardness, wear resistance, and toughness – ideal for high‑temperature aluminium extrusion environments.
Vacuum Heat Treatment (48‑52 HRC)
A full vacuum heat treatment process eliminates oxidation and ensures uniform hardness distribution. The final hardness of 48‑52 HRC balances wear resistance against impact toughness, reducing premature failure.
Custom Extrusion Tooling – Any Size
We support custom extrusion tooling with adjustable diameters (60 – 1,000 mm) and thicknesses (0.6 – 1.8 mm) to match your press’s exact specifications.
Computer‑Simulated Flow Analysis
Every design is validated by computer‑simulated flow analysis to optimise metal flow, minimise scrap, and guarantee dimensional stability before production.
Faster Delivery & Lower Total Cost
Standard lead time of 15 working days. By improving sealing efficiency and reducing scrap rates, our dummy block and support ring directly help you extend die life and achieve lower operating costs.
| Parameter | Value / Range |
|---|---|
| Applicable Press Tonnage | 7500T (and up to 10,000T) |
| Material | H13 hot work tool steel (AISI H13 / DIN 1.2344) |
| Hardness | 48 – 52 HRC |
| Heat Treatment | Vacuum heat treatment + double tempering |
| Custom Diameter | 60 – 1000 mm |
| Custom Thickness | 0.6 – 1.8 mm |
| Surface Finish | Precision ground, ≤ Ra 0.8 µm |
| Lead Time | 15 working days (custom sizes) |
During the extrusion cycle:
The dummy block pushes the billet into the container.
The front beam support ring guides the dummy block and keeps it centred.
A tight seal prevents aluminium flash from flowing backward into the press stem area.
After the stroke, the support ring helps retract the dummy block smoothly.
Without a high‑quality front beam support ring, the dummy block can tilt, causing uneven billet sealing, increased scrap, and premature wear to both the dummy block and the container liner.
Proven Quality – Our dummy blocks and support rings are used by major aluminium profile manufacturers for window, door, industrial, and curtain wall extrusions.
Full Customisation – We provide custom extrusion tooling based on your drawing or sample, with no MOQ restrictions for large tonnage components.
Engineering Support – Our team runs computer‑simulated flow analysis to validate each design, so you receive tooling that works right from the first trial.
Global Shipping & Fast Turnaround – 15‑working‑day delivery for most custom sizes, with reliable logistics to North America, Europe, Asia, and the Middle East.
To request a quote for the 7500T dummy block & front beam support ring, please provide:
Press manufacturer and model
Required dummy block diameter and thickness
Desired material hardness (standard 48‑52 HRC, other ranges available)
Drawing or reference photo (if available)
Contact our engineering team today to discuss your custom extrusion tooling needs. We will respond within 24 hours with a competitive price and lead time.
