Hot Runner TZM Rod

The hot runner system TZM rod is a tungsten zirconium molybdenum alloy.

TZM has an extremely high thermal conductivity of 140W/mK, and has excellent high-temperature performance, corrosion resistance, and processing mechanical properties, which can meet the requirements of hot runners for long-term use at high temperatures, and can be made into nozzles of different shapes for use in hot runner systems.

The hot runner system is an assembly of heated components used in plastic injection molds that inject molten plastic into the cavities of the mold to obtain high-quality plastic products. And it is usually made of a nozzle, a temperature controller, a manifold, and other parts.

Hot runner TZM rod with high temperature resistance, high strength, good corrosion resistance, and other excellent properties is widely used in all kinds of hot runner nozzle production. The hot runner TZM rod is an important part of the hot runner system. According to the nozzle in the form shape, it can be divided into two main types, open gate and valve gate.

Chemical Composition:

- Density: Approximately 8.25 g/cm³

- Melting Point: ~ 1650°C (2996°F)

- Electrical Resistivity: ~ 0.040 ohm·m at room temperature

- Thermal Conductivity: ~ 20 W/m·K at room temperature

- Coefficient of Thermal Expansion: ~ 8.3 x 10^-6 /°C (over a range of temperatures)

- Tensile Strength: ~ 600-800 MPa

- Yield Strength: ~ 400-600 MPa

- Elongation at Break: ~ 10-15%

- Hardness: ~ 220-280 HB (Brinell Hardness)

- Modulus of Elasticity: ~ 210 GPa

- Specific Heat Capacity: ~ 0.28 J/g·°C at room temperature

- Oxidation Resistance: Good resistance to oxidation up to 1000°C (1832°F) in air

- Creep Resistance: Excellent resistance to creep at high temperatures

Hot Runner Nozzle: TZM alloy rods are often machined into hot runner nozzles for transporting and injecting molten plastic in injection molding. Their heat and wear resistance ensure stable performance under high temperatures and pressure.

Nozzle Sleeve: TZM rods can be used to make nozzle sleeves, which protect the nozzle from wear while enduring high heat and pressure.

Manifold Plate: TZM rods are processed into manifold plates, which guide and control plastic flow at the hot runner outlet, ensuring smooth material distribution.

Heating Elements: In heated hot runner systems, TZM rods serve as heating elements due to their excellent thermal conductivity, efficiently transferring heat to the working area.

Automotive & Medical Applications: In car light covers and parts production, TZM hot runner systems ensure smooth, high-quality gates, meeting strict standards for transparent and precision components. In the medical field, their precise gate control makes them ideal for manufacturing plastic medical parts.

Are you a factory or manufacturer?

A: Yes, we are a factory, but we generally use our trading company to handle the business abroad. It will be more convenient to receive the remittance and arrange the shipment.

What is the delivery method?

A: Generally, we send cargo by UPS, DHL, or FedEx. Also, we can send by sea to a seaport or by air to the closest airport.

Why is your product so cost-effective?

A: We cut out the middlemen in the end-to-end manufacturing process, and we obtain raw material directly from its source.

Do you do spot quality inspection or full inspection?

A: 100% full inspection for sure. All unqualified products are discarded.

How do you ensure your lead time?

A: From material preparation to machining and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.

What is the MOQ of Hot Runner TZM Rod?

A: Depends on quantity, generally, no MOQ limit.

How to pay for it?

A: A bank transfer (T/T) will be acceptable.

What is the delivery time?

A: around 7-20 days, which depends on the quantity and production.

What kind of package is it?

A: Generally, we use a carton case or a plywood case with protective material inside to ensure the safety of cargo.

What is the lead time?

A: From the order placed to cargo receiving will take around 10-25 days.

What is a Hot Runner TZM Rod?

A Hot Runner TZM Rod is a high-performance component made from TZM alloy (Molybdenum-Titanium-Zirconium). It is used in hot runner systems for injection molding, offering heat resistance, durability, and stability under extreme conditions.

Where is the TZM Rod used in hot runner systems?

It is commonly used for:

Nozzles & Nozzle Sleeves – Resists wear and high temperatures.

Manifold Plates – Guide plastic flow smoothly.

Heating Elements – Efficiently transfer heat due to high thermal conductivity.

Why choose TZM alloy over other materials?

High melting point (over 2,600°C) – Works well in extreme heat.

Low thermal expansion – Maintains precision under temperature changes.

Excellent wear resistance – Lasts longer than steel or standard molybdenum.

What industries use TZM Hot Runner Rods?

Automotive (e.g., headlight covers, precision parts)

Medical (e.g., high-quality plastic components)

Electronics & Packaging (e.g., thin-walled plastic products)

How does TZM improve injection molding quality?

Ensures consistent heat distribution, reducing defects.

Provides smooth plastic flow, minimizing waste.

Extends component lifespan, lowering maintenance costs.

Can TZM Rods be customized?

Yes, they can be machined into different shapes (rods, plates, tubes) to fit specific hot runner system designs.

How to maintain TZM Rods in hot runner systems?

Regular cleaning to prevent plastic buildup.

Avoid thermal shocks (sudden temperature changes).

Check for wear and corrosion over time.

Where can I get Hot Runner TZM Rods?

Our company supplies high-quality Hot Runner TZM Rod along with excellent service. For detailed specifications and pricing, please contact us.

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