What is No-Bake casting technology (chemisch gebundener Sand)?

No-Bake Technology, also called chemisch gebundener Sand or cold-cure moulding, is a sand casting process where liquid binder and catalyst are mixed with quartz sand to produce moulds that harden at room temperature without heat or a kiln. This delivers dimensional accuracy comparable to permanent mould processes, geometric freedom beyond green sand, and no size limit, from small precision parts to 50-tonne machine beds. Axmann supplies complete, turnkey No-Bake lines.

What is the difference between No-Bake and green sand casting?

Green sand casting uses moisture-bonded sand compacted around a pattern, fast but limited in size and complexity. No-Bake uses chemically bonded sand that cures at room temperature, producing rigid moulds with no residual moisture. The result is superior dimensional accuracy, cleaner surfaces, fewer casting defects, and the ability to produce much larger and more complex parts.

What binder systems (Bindemittel) are used in No-Bake casting?

No-Bake casting uses organic binder systems including furan resin (Furanharz, furfuryl alcohol-based), phenolic urethane (Pepset/Isocure), and alkaline phenolic (Alphaset) systems. Axmann's continuous Durchlaufmischer are compatible with all common No-Bake binder types and configured for the specific chemistry of each installation.

What sand reclamation rate is achievable with No-Bake (Sandregeneration)?

Axmann No-Bake lines with integrated mechanical and thermal sand reclamation (Sandregeneration) routinely achieve 90%+ sand reuse rates. Reclaimed sand is returned directly to the mixer, significantly reducing raw material costs and the environmental footprint of foundry operations.

Does Axmann supply complete No-Bake lines turnkey?

Yes. Axmann designs and delivers complete No-Bake Technology lines, continuous single- and double-arm mixers (Einwellen- und Doppelwellen-Durchlaufmischer), sand storage and conditioning, pattern handling, pouring equipment, cooling conveyors, shakeout, and sand reclamation, as one integrated turnkey system, engineered, fabricated and commissioned by Axmann.

No-Bake Technology | Chemisch gebundener Sand

Name: No-Bake Technology Moulding Lines
Brand: AXMANN

No-Bake Technology, also called chemically bonded sand casting, is a room-temperature moulding process where liquid binder and catalyst mixed with silica sand cure into a rigid mould without heat or ovens. The result: dimensional accuracy that rivals permanent-mould processes, geometric freedom beyond green sand, and virtually unlimited casting size. From precision parts to 50-tonne machine bases, No-Bake scales without compromise.

Unlike green-sand systems, the mould itself carries no residual moisture and no thermal distortion during setup, delivering cleaner surfaces, tighter tolerances, and fewer defects. Combined with continuous sand reclamation, the process is both high-quality and economically closed-loop: over 90% of moulding sand returns to the line after each pour.

1

Sand Storage & Conditioning

Silica sand is metered from silos, dried, and temperature-controlled, the foundation for consistent, repeatable binder reaction.

2

Continuous Mixing

In-line single- or twin-shaft arm mixers inject liquid binder (furan, phenolic urethane, or alkaline phenolic) and catalyst directly into the sand stream.

3

Pattern & Mould Filling

Activated sand flows around the pattern and is compacted in the flask. Work starts before the chemistry ends, no waiting on ovens.

4

Ambient Curing

The binder hardens in minutes to hours at room temperature, no combustion, no heat input, no thermal distortion.

5

Pattern Removal & Closing

The cured mould half is stripped from the pattern; cores are set; cope and drag are closed and clamped for pouring.

6

Pouring & Cooling

Molten metal is delivered into the clamped mould at controlled temperature and flow; the casting solidifies and cools on a conveyor loop.

7

Shakeout & Sand Reclamation

Used sand is broken off the casting and mechanically and thermally reclaimed, returned to the storage silos to close the loop at 90%+ reuse.

Continuous single- and twin-shaft arm mixers

Sand storage silos, dosing & conditioning

Binder & catalyst dosing stations

Pattern handling, rollover & mould closing cells

Automated pouring & pouring lines

Cooling conveyors & turnover stations

Shakeout units & casting handling

Mechanical + thermal sand reclamation & line-wide control

Axmann continuous arm mixer in action with overhead sand silo, No-Bake foundry line

Axmann double-arm continuous mixer with control cabinet, No-Bake sand activation

Axmann single-arm continuous mixer operating in a working foundry, No-Bake line

Unlimited Casting Size

From kilograms to tens of tonnes. The defining advantage over green sand, no upper ceiling on mould weight or geometry.

Superior Dimensional Accuracy

No moisture, no flask distortion, no thermal drift during cure, tolerances rival permanent-mould work without the tooling cost.

Binder Flexibility

Furan, phenolic urethane, or alkaline phenolic, chosen per casting alloy, emissions target, and cycle-time need.

Fewer Thermal Defects

Ambient cure eliminates mould-temperature variation, fewer gas defects, cleaner surfaces, higher first-pass yield.

Closed-Loop Sustainability

90%+ sand reclamation, lower new-sand input, lower disposal cost, lower carbon per tonne of good castings.

Scale Flexibility

Single-shift jobbing foundry or 24/7 series line, the same equipment family scales up without reinventing the process.

Heavy Machinery & Machine Bases

Pump & Valve Bodies

Wind Energy & Turbine Housings

Rail, Mining & Heavy Industry

Continuous Sand Mixers & Sand Reclamation Systems

Sand Preparation & Regeneration Systems

Efficient, precise, and fully integrated sand processing solutions for modern foundries. From mixing to transport and reclamation.

Automatic Moulding Lines & Mould Handling Equipment

Moulding & Core Production Lines

High-precision mould and core production systems designed for consistent quality and maximum efficiency.

Turnkey Foundry Systems & Complete Foundry Solutions

Complete Foundry Solutions & Custom Systems

From concept to commissioning, fully integrated solutions tailored to your entire production process.

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Your No-Bake Line, Engineered End-to-End

Every No-Bake line is different. Casting size, binder chemistry, reclamation strategy, automation level, factory layout, Axmann engineers all of it around your specific production targets and emissions goals.

Talk to our engineers. We'll turn your requirements into a complete, commissioned production line.

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No-Bake Technology,
Engineered as One Line

Cold-Cure Sand Casting for Large and Complex Parts