Single Chamber Vacuum Tempering Furnace For Tool Die Steel

This mold & tool steel dedicated vacuum tempering furnace is upgraded on standard single chamber vacuum temper furnace, solving the core pain of die cracking, uneven hardness and surface oxidation after quenching tempering. Unlike general-purpose vacuum temper furnaces with universal temperature programs, this model equips customized low-temperature slow heating curve system targeting H13, SKD11, M2 high-speed steel, punch dies and stamping molds.

The inner hearth adopts reinforced heavy-duty refractory bracket to stack thick large mold blanks without deformation. Independent low-temperature hot air circulation fan eliminates local temperature dead zones inside cavity, ensuring uniform internal & external tempering effect for thick mold cores. Full vacuum closed environment keeps mold surface metallic bright without black oxide scale, cutting post polishing cost for mold factories.

After loading stacked mold blanks into reinforced hearth, fully seal furnace door and pump to high vacuum state. The PLC system runs mold-specific slow heating curve to avoid thermal stress crack. Built-in circulation fan stirs vacuum hot flow evenly across thick mold sections for consistent temper hardness. Complete whole heat preservation & cooling cycle under oxygen-free vacuum environment to retain bright mold finish without oxidation discoloration.

1. Exclusive Low-Temperature Anti-Crack Tempering Curve Program Pre-set dedicated heating & holding curves for H13, SKD61, M2 high speed steel, avoid rapid temperature rise causing mold internal crack.

2. Heavy-Duty Reinforced Loading Hearth Structure Thick alloy support frame bears stacked large mold blanks, no bending or sag under heavy workpiece load.

3. Low-Temp Convection Hot Air Circulation System Built-in high-temperature circulation fan improves temperature uniformity below 400℃, eliminate hardness deviation of thick mold core.

4. Ultra-Tight Multi-Layer Graphite Sealing Door Zero air leakage during long mold tempering cycles, fully isolate oxygen to maintain mirror bright mold surface.

1. Plastic injection mold, die casting mold vacuum tempering

2. High speed steel milling cutter, drill bit, tap heat treatment

3. H13 hot forging die, cold stamping punch stress relief

4. Tooling factory batch mold post-quench temper production

5. Precision blanking die, wear-resistant alloy mold processing

• Max Working Temp: 750℃

• Ultimate Vacuum: 5×10⁻³ Pa

• Temperature Uniformity: ±4℃ full cavity

• Loading Structure: Thick alloy reinforced mold bracket

• Dedicated Programs: H13, SKD11, M2 high speed steel temper curves pre-stored

Packing: Standard seaworthy wooden case, vacuum moisture-proof packaging for ocean shipment.

Installation: Supply English operation manual, remote video installation guidance service.

Warranty: 12 months whole machine warranty, core vacuum pump & heating elements spare parts supply permanently.

Q1: Why use special mold vacuum temper furnace instead of general vacuum temper equipment?

A: Standard furnaces adopt fast heating programs which easily produce internal microcracks on thick mold steel; this model is pre-programmed slow heating curve to eliminate thermal stress and mold cracking risk.

Q2: Can this furnace temper stacked large heavy molds?

A: Yes, reinforced hearth support frame is designed for multi-layer thick mold stacking, no sagging or deformation under heavy load.