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Dry Ice Blasting Equipment for Foundries and Metal Casting

Clean Core Boxes, Permanent Molds, and Die Cast Tooling Faster Without Damage

Eliminate Tooling Damage and Maximize Uptime with In-Place Dry Ice Blasting

Cold Jet’s dry ice blasting machines deliver superior cleaning results for foundries, die casting facilities, and metal casting operations. By replacing abrasive sand blasting, labor-intensive manual scrubbing, and harsh chemical solvents with a non-abrasive, moisture-free solution, operators achieve the following results:

  • Significantly Faster Cleaning: Clean complex permanent mold geometries, core boxes, and die cast tooling in a fraction of the time required for manual wire brushing.
  • Hot & In-Place Cleaning: Eliminate cooling cycles and mold or die removal. Clean your production assets while they are still on the casting line and at operating temperature.
  • Extended Asset Life: Safely clean permanent molds, aluminum tooling, and precision core boxes without damaging vents or rounding critical parting lines.
  • Reduced Scrap Rates: Effectively remove refractory coatings and resins to ensure a superior as-cast finish and consistent part quality.
  • Zero Secondary Waste: Dry ice sublimates on contact—leaving no grit, no chemicals, and no hazardous waste disposal costs.

Ready to extend asset life and reduce production downtime? Contact us today to learn how Cold Jet dry ice blasting machines can eliminate tool damage, improve part quality, and keep your foundry operating at peak efficiency.

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What are the Benefits of Dry Ice Blasting for Foundries?

Maximize tooling life and casting quality while minimizing production downtime

Cold Jet dry ice blasting is a non-abrasive, non-conductive process that effectively removes refractory coatings, sand residue, release agents, and carbon deposits. Because dry ice sublimates on contact, it produces no secondary waste and leaves no moisture, preventing flash rust on assets and allowing operators to clean precision geometries faster and more economically than traditional methods.

By replacing abrasive sand blasting, manual scrubbing, and harsh chemicals with Cold Jet dry ice blasting, foundry operators achieve:

 

  • Drastic Reduction in Cleaning Time and Downtime

    Operators can clean permanent molds, core boxes, and die cast tooling in a fraction of the time, directly increasing operational capacity and improving equipment reliability across the casting line. With dry ice blasting, foundries report time reductions ranging from 40-90% depending on application—with core boxes seeing the highest improvements at 85-90%, permanent molds at 50-85%, and general equipment cleaning at 40-70%.

  • Preservation of Tooling Integrity

    Unlike sand blasting or wire brushing that progressively rounds parting lines, damages delicate vents/screens, and degrades surface finish, dry ice cleaning removes contamination without physical wear. This preserves the dimensional accuracy of expensive dies and molds, extending the productive life of your most critical assets.

  • In-Place Cleaning

    Clean permanent molds, die cast tooling, and forging dies while they are still hot and mounted on production equipment. This eliminates cooldown periods, disassembly labor, and the alignment issues that frequently occur when heavy tooling is removed and replaced.

  • Improved Part Quality and Reduced Scrap Rates

    By completely removing refractory coating irregularities and sand binder residue, Cold Jet dry ice cleaning eliminates the root causes of surface defects. Foundries report a superior as-cast finish, tighter dimensional tolerances, and significantly lower scrap rates when molds and dies are properly maintained.

  • No Secondary Waste or Disposal Costs

    Dry ice sublimates into gas upon impact—no water, harsh chemicals, or abrasive grit are left behind. This eliminates the need to collect and dispose of contaminated media and prevents moisture issues that cause flash rust on steel die surfaces and cast-iron molds.

  • Enhanced Worker Safety

    Dry ice blasting eliminates chemical solvent exposure, reduces silica dust inhalation, and removes the ergonomic strain associated with hours of manual wire brushing.

Dry Ice Blasting Applications for Metal Casting and Foundries

 

Cold Jet dry ice blasting equipment provides cleaning and maintenance solutions for three primary applications:

 

  • Permanent Mold Casting

  • Core Boxes

  • Die Cast Tooling and General Equipment

Permanent Mold Casting Cleaning

 

Extend Asset Life and Improve Quality with Non-Abrasive Cleaning

 

Sand blasting and wire brushing progressively erode expensive tooling with every cleaning cycle. This cumulative damage rounds critical parting lines, degrades surface finishes, and forces premature mold retirement. Dry ice blasting eliminates this cycle by removing contaminants without physical substrate wear, allowing operators to clean molds while still mounted and at operating temperature.

 

Surface integrity is critical for gravity-fed and low-pressure molds where even microscopic changes affect metal flow and part release. Dry ice safely removes refractory coatings, graphite lubricants, and carbonized release agents from complex parting lines and internal cooling channels without abrasive wear. A major automotive foundry extended mold service life by 40% after switching to dry ice cleaning, significantly reducing annual tooling replacement costs.

 

  • Dry ice blasting cleaning mold for brake components

  • Removing refractory coating from permanent mold

  • Dry ice blasting cleaning aluminum permanent mold

Dry ice blasting cleans the following equipment in permanent mold casting operations:

 

  • Permanent Aluminum Molds

  • Metal Bonded Molds

  • Gravity Molds

  • Tilt Pour Molds

  • Low-Pressure Permanent Molds

Core Box Maintenance and Cleaning

 

Reduce Cleaning Cycles by up to 86% While Protecting Precision Tolerances

 

Core box cleaning is often a maintenance bottleneck, forcing foundries to rely on manual scraping or costly outside service providers. Cold Jet dry ice cleaning reaches into complex geometries and removes hardened resins and sand binders in minutes rather than hours. By cleaning in-house and in-place, foundries reduce backup tooling inventory and eliminate weeks of lead time.

 

  • Cold Box and Shell Core Box Cleaning

    Efficiently remove resins, binders, and release agents from cold box and shell core equipment. One foundry reported reducing a 6-hour manual cleaning cycle to less than one hour with dry ice blasting—without the abrasive wear that degrades the precision surfaces required for dimensional accuracy. This ensures that every core produced meets strict as-designed specifications.

  • Precision Vent and Screen Cleaning

    Dry ice blasting restores optimal airflow by clearing clogged slot and screen vents—the primary cause of gas porosity and casting defects—without the abrasive damage caused by manual scrubbing. Dry ice cleaning lifts hardened resins while preserving the sharp edges of vents. This prevents vent flash, ensures consistent gas evacuation, and lowers scrap rates by maintaining the integrity of the exhaust system.

  • Core Room Equipment and Tooling

    Extend the life of oven systems, handling fixtures, and equipment in the core room. Dry ice’s non-conductive properties allow for the safe cleaning of sensors without risking electrical failure. This comprehensive approach minimizes unplanned downtime across the entire core room.

  • Core box cleaning with dry ice blasting

  • Cleaning of a multi-cavity core box with dry ice blasting

  • Dry ice blasting cleaning core box online

Dry ice blasting cleans the following equipment in core box operations:

 

  • Cold Boxes

  • Shell Core Boxes

  • Dump Core Boxes

  • Split Core Boxes

  • Strickle Core Boxes

  • Loose Piece Core Boxes

  • Gang Core Boxes

  • Half Core Boxes

  • Core Oven Systems

Die Cast Tooling and General Equipment Cleaning

 

Clean Tooling In-Situ and Eliminate Secondary Waste from Production Lines

 

Die casting operations face a critical challenge: contamination degrades part quality, but taking equipment offline kills production throughput. Cold Jet dry ice blasting solves this by cleaning hot tooling without abrasive damage, chemicals, or production shutdown.

 

Remove oxides and heavy die lubricant buildup while tooling is still at operating temperature, eliminating hours wasted on cooldown and disassembly. Whether managing semi-solid casting, squeeze casting, or high-pressure die casting (HPDC), dry ice ensures superior surface preparation between runs without rounding precision parting lines. One facility eliminated two hours of downtime per die change, enabling immediate return to production.

 

  • Removing die lube from magnesium die cast with dry ice blasting

  • Dry ice blasting cleaning die cast tooling

  • Dry ice blasting cleaning high-pressure die casting

Dry ice blasting cleans the following equipment in die cast and general foundry operations:

 

  • Semi-Solid Casting Tooling

  • Squeeze Casting Tooling

  • Forging Dies

  • Die Cast Dies

  • Coating Equipment

What Do Foundries Need for Dry Ice Cleaning?

 

A dry ice cleaning configuration for foundry operations relies on several key parts:

 

Cold Jet dry ice blasting setup with dry ice blaster, ice tote, and air compressor with air dryer

  • Dry Ice Blaster

    Cold Jet dry ice blasters are built to withstand the tough environments in metal casting facilities. These versatile machines handle everything from delicate core box vent cleaning to aggressive refractory coating removal. Every unit arrives equipped with hoses, an applicator, and nozzles.

  • Compressed Air

    Most foundries have existing filtered air systems that can supply the required compressed air for dry ice blasting operations. For locations without plant air, portable diesel air compressors can provide the necessary compressed air supply.

  • Dry Ice Supply

    A reliable supply of dry ice is essential for consistent cleaning operations. We can help you identify a dry ice supplier and recommend the amount you should order based on your cleaning requirements and production schedule. Once identified, establish a delivery schedule that aligns with your maintenance and operational needs.

  • Machine and Operator Training

    Proper training is essential to ensure your team can effectively and safely use dry ice cleaning equipment for foundry applications. Cold Jet provides comprehensive training that equips operators with the necessary techniques and safety guidelines for optimal cleaning practices.

  • Personal Protective Equipment (PPE)

    Always ensure your cleaning team wears the correct safety gear, including gloves, hearing protection, and eye protection while operating your dry ice blaster.

What Is the Best Dry Ice Blaster for Foundries?

 

Foundry operators choose from Cold Jet’s full lineup of dry ice blasters to match their specific cleaning needs. Popular systems for metal casting and foundry operations include:

  • Aero 40FP

    The Aero 40FP provides the high-impact power necessary to tackle stubborn refractory coatings, heavy carbon buildup, and thick scale on die cast tooling and permanent molds. Its advanced air system ensures consistently powerful, pulse-free flow. This unit is ideal for aggressive cleaning and large-scale production equipment maintenance.

    Aero® 40FP
  • Aero2 PLT ULTRA

    The PLT ULTRA delivers high-output performance in a maneuverable design, engineered for the rapid maintenance of tooling and casting lines. It provides fast, effective removal of release agents and refractory coatings without compromising precision surfaces or venting systems. This system is optimized for high-volume facilities requiring maximum turnaround speed for their most critical production assets.

    Aero2 PLT® ULTRA
  • Aero2 PCS ULTRA

    The PCS ULTRA is a highly versatile solution for the full spectrum of foundry assets. This mobile blaster transitions seamlessly from the precision cleaning of delicate core box vents and screens to the removal of heavy binder residue and sand buildup. Its precision control allows operators to calibrate parameters for each specific application, making it the ideal all-in-one machine for facilities managing diverse tooling.

    Aero2 PCS® ULTRA

Why Choose Cold Jet Machines for Foundry Cleaning?

 

 

Cold Jet dry ice blasting machine portfolio

 

 

Foundry operations demand equipment built to handle harsh conditions day after day. Cold Jet machines deliver the durability, reliability, and performance foundries need—with faster ROI than competitor systems.

 

  • Trusted Foundry Expertise

    With decades of experience in metal casting operations, Cold Jet has worked with leading foundries worldwide to solve their most demanding maintenance challenges. With over 24,000 dry ice cleaning machines installed globally at foundries and die casting facilities, Cold Jet is the proven, trusted solution.

  • Industry Leading Reliability

    Our machines are engineered to thrive in demanding foundry environments. Cold Jet dry ice blasters offer unmatched reliability and significantly longer lifespan than competitor models, handling daily use across multiple shifts in harsh, high-temperature conditions.

  • Lower Operating Costs

    Cold Jet equipment uses significantly less dry ice, compressed air, and electricity than competitor machines, directly reducing your daily operating costs without compromising cleaning quality or safety.

  • Unmatched Support and Training

    Our regional technicians provide expert maintenance services and comprehensive equipment training to ensure your team’s success. We understand foundry operations and deliver application-specific guidance for your cleaning challenges.

  • Application Specific Accessories

    Cold Jet offers a wide array of nozzles, applicators, and blast hoses to optimize your cleaning setup. Our team helps you select the right configuration for your needs.

OUR CUSTOMERS & WHAT THEY SAY ABOUT US

Foundries around the world rely on Cold Jet

With over 24,000 machines installed globally, Cold Jet delivers reliable dry ice cleaning solutions for metal casting operations.

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SEE WHAT PLASTICS MANUFACTURERS ARE SAYING ABOUT DRY ICE CLEANING

Our customers achieve better cleaning results by using dry ice blasting

Cold Jet has greatly increased our efficiency with core box cleaning.

We estimated that it would pay for itself in six months, but it took only one month. This machine is incredible. Every foundry needs to own a dry ice cleaning system!

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Frequently Asked Questions

 

  • Dry ice blasting cleans all types of foundry equipment including permanent molds, core boxes (cold box, shell core), die cast tooling (semi-solid casting, squeeze casting, LPPM), and general production equipment (coating systems, hydraulic units, motors, control panels). The process is versatile enough to handle both delicate core box vents and screens and heavy refractory coating removal in a single system, making it ideal for comprehensive foundry maintenance operations.

  • Dry ice blasting is significantly faster than manual cleaning or sand blasting. A German foundry reduced core box cleaning from 6 hours to less than one hour. A North American foundry estimated six-month ROI but achieved payback in just one month due to dramatic time savings and improved mold life.

  • Unlike sand blasting or wire brushing, dry ice is completely non-abrasive. This preserves critical mold edges, delicate vents and screens, and precision geometries that abrasive methods progressively damage. Foundries report extending permanent mold life by 40% or more by eliminating the cumulative wear from traditional cleaning methods.

  • Yes. Clean molds produce superior castings. By completely removing refractory coating irregularities, release agent buildup, sand residue, and contamination, dry ice blasting eliminates common causes of surface defects, porosity, and dimensional variation. Foundries report improved as-cast surface finish, reduced secondary machining requirements, and lower scrap rates when implementing dry ice cleaning for mold maintenance.


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