High Pressure Polyurethane Foam Injection Machine for Tire Making

This polyurethane foam filling machine injects two-component PU directly into the tyre cavity to produce solid, puncture-proof tires.

This high-pressure polyurethane foam filling machine (also called a tire foam fill machine or foam fill tire machine) uses a twin-component metering pump and a dedicated tyre-casting mold head — not a generic foam nozzle — to inject polyurethane directly into the tyre cavity, producing solid, puncture-proof filled tires with consistent foam density. It is widely used for forklift tires, AGV wheels, mining and industrial tyres where flat-free performance is essential. As a high-pressure PU foam machine manufacturer, we customize the output, mixing ratio and mixing head to match your tire filling production line. For solid polyurethane wheel casting, see our PU elastomer casting machine.

Unlike a general-purpose foam dispensing head, this pu filling machine pairs a Gelanrex twin-component metering pump with a dedicated tyre-casting mold head, so mixing ratio and shot size stay locked for every cavity. Flow output scales from the SPU-HS2-20 (20-170) up to the SPU-HS2-5000 (1000-5000) — see the Product Parameters table below for the full range — so the same platform covers small-batch AGV wheel filling and high-volume industrial tyre lines. We run high pressure rather than a low-pressure gun because low-pressure mixing leaves uneven cell structure and micro-voids in a large tyre cavity; high-pressure impingement mixing keeps foam density consistent through the full pour, which is what prevents the tyre from developing soft spots or premature wear.

This high pressure polyurethane foam injection machine is built specifically for tire filling, not general-purpose foaming — for other applications, see our general-purpose high-pressure foam machine. Buyers comparing quotations for a polyurethane foam dispensing system on this platform often see different prices for machines that look similar in the Product Parameters table below. The difference usually comes down to two things the flow-range column does not show: the mixing head type (T or L head) and metering accuracy under real production conditions, not the frame or paint. Ask any supplier to state the mixing head type and metering-pump accuracy in a quotation, not just the flow range.

PU Polyurethane Foam Tire Production Equipment

Product Parameters

Other PU Foam Machine Applications

PU foaming machines have wide application in the market, which have features of economy and convenient operation and maintenance,etc. The machines can be customized according to customers’ requirement for various output and mixing ratio.

This polyurethane foaming machine uses two raw materials, polyurethane and Isocyanate. This type of PU foam machine can be used in various industries, such as daily necessities, automobile decoration, medical equipment, sports industry, leather footwear, packaging industry, furniture industry, military industry, including Pillow, chair, seat cushion,wheel, crown molding, wall panel, steering wheel, bumper, integral skin, fast rebound, slow rebound, toys, knee pad, shoulder pad, fitness equipment, thermal insulation material filling, bicycle cushion, car cushion, hard foaming, refrigerator material, medical appliance, insole etc.

Frequently Asked Questions

What is a polyurethane foam filling machine used for?

A polyurethane foam filling machine injects two-component polyurethane into a mold or cavity. For tire and wheel applications, that means filling a tyre or wheel cavity to produce a solid, puncture-proof tire instead of an air-filled one.

What is a tire foam fill machine?

A tire foam fill machine is the tire-specific version of a PU filling machine: it uses a metering pump and a tyre-casting mold head to inject two-component polyurethane directly into the tyre cavity, producing a solid, flat-free tire with consistent foam density.

How much does a PU tire filling machine cost?

Pricing depends on flow output, mixing head configuration and automation level. Contact us for a quote based on your production capacity requirements.

What’s the difference between high-pressure and low-pressure PU filling machines?

Low-pressure machines mix at lower pump pressure and suit smaller, simpler shapes, but can leave uneven cell structure in large cavities. High-pressure machines use impingement mixing to keep foam density consistent throughout the pour, which is why tire and wheel filling applications use high-pressure equipment.

Is a "foam fill tire machine" the same as this machine?

Yes. "Foam fill tire machine," "tire foam fill machine," and "PU tire filling machine" all describe the same equipment on this page — the high-pressure two-component injection unit used to fill tyre and wheel cavities with solid polyurethane foam.

What determines the cost of a PU foam filling machine, and what mixing head does it use?

Cost is driven mainly by flow rate range and the number of components (2-4), not by frame size alone — see the Product Parameters table above for the five model options. Every model in this range uses a T-type or L-type mixing head paired with a Gelanrex metering pump; the mixing head type and metering accuracy affect price more than flow range alone. For an exact quotation, send your target flow rate and shot volume per part.

Is this a true high pressure polyurethane foam injection machine, or a low-pressure line with a pump upgrade?

Yes, this is a true high pressure polyurethane foam injection machine — it uses impingement mixing at production pressure, not a low-pressure pump retrofit. Flow output ranges from 20-170 to 1000-5000 depending on model (see Product Parameters table above); ask any supplier for their actual working pressure spec before comparing quotes.