APSX-LSR Liquid Silicone Rubber Injection Machine

Desktop Rubber Injection Molding Machine

The APSX-LSR is a compact desktop rubber injection molding machine designed for liquid silicone rubber (LSR) processing. Unlike traditional rubber injection molding systems that require large industrial equipment and complex setups, the APSX-LSR brings professional rubber injection molding capabilities to any benchtop workspace. Whether you need silicone rubber parts for medical devices, automotive seals, or consumer products, the APSX-LSR delivers consistent, repeatable results at a fraction of the cost of industrial rubber molding machines.

APSX introduces the revolutionary APSX-LSR that makes liquid silicone rubber injection molding affordable and accessible. Unlike traditional LSR setups that require sourcing components from multiple suppliers, the APSX-LSR delivers a complete all-in-one solution that includes the injection molding machine, curated LSR material selection, and integrated APSX LSR Pump system that includes 2 liter dual (A&B) cartridge in a single package. 

THE APSX ALL-IN-ONE LSR ADVANTAGE

The APSX-LSR revolutionizes this all-in-one approach by providing a complete, integrated solution that includes: 

• APSX-LSR Injection Molding Machine - Purpose-built for liquid silicone rubber processing with specialized temperature control, pre-filled dual cartridges, and LSR-optimized integrated pump unit.
• Curated APSX LSR Material Portfolio - Three carefully selected LSR formulations covering the most common application requirements:
  • Soft 20A Shore Hardness - Ideal for medical devices, seals, and flexible components requiring maximum elasticity
  • Medium 40A Shore Hardness (included with the machine) - Perfect for automotive applications, gaskets, and general-purpose LSR components
  • Hard 70A Shore Hardness - Designed for structural components, keypads, and applications requiring dimensional stability
• Integrated APSX LSR Pump System - Advanced two-component dosing and mixing system specifically engineered for seamless integration with the APSX-LSR machine, featuring innovative dual cartridge material delivery that eliminates messy material handling.

KEY FEATURES OF APSX-LSR

The APSX-LSR incorporates cutting-edge liquid injection molding (LIM) technology specifically designed for processing liquid silicone rubber materials. Unlike traditional thermoplastic injection molding, LSR processing requires specialized equipment capable of handling two-component liquid materials, precise temperature control, and unique curing processes. 

• Ultra-compact design (4 ft by 2 ft footprint) optimized for LSR processing
• Robust construction with stainless steel components and hard anodized aluminum parts
• Specialized LSR barrel with integrated cooling system and stainless steel construction 
• 115V power
• All-electric drive system with no hydraulic fluids for clean room compatibility
• Fully automatic LIM processing with precision sensors and control systems
• Integrated APSX LSR Pump System with precision two-component dosing and mixing
• Typical 60-90 second cycle times depending on part geometry and curing requirements 
• Dual Cartridge Material System - Clean, easy-to-replace cartridges eliminate messy LSR handling
• Pre-loaded APSX LSR Material Portfolio (20A, 40A, 70A Shore hardness options)
• Advanced temperature control with heated mold capability up to 200°C
• User-friendly touch screen interface with LSR-specific process monitoring

Unlike traditional setups requiring separate pumping equipment from third-party suppliers, the APSX system incorporates advanced dosing technology that precisely meters and mixes LSR components A and B before injection into heated molds where the material cures through vulcanization. The pre-loaded material portfolio eliminates the complexity of sourcing compatible LSR formulations from multiple chemical suppliers.

You can always include the APSX-PKR part picker to automate your process even for the molds with no ejector pins. 

BENEFITS AT A GLANCE

Integrated APSX LSR Pump System

The proprietary APSX LSR Pump System is specifically engineered for seamless integration with the APSX-LSR machine. Unlike third-party pumping systems that require complex integration and compatibility validation, the APSX pump is factory-integrated and pre-calibrated for optimal performance with the included material portfolio.

Dual Cartridge Material System

The APSX-LSR introduces an innovative dual cartridge material delivery system that revolutionizes LSR material handling. Traditional LSR operations require workers to handle sticky, messy two-component materials that can be difficult to manage and create workplace cleanliness issues. The APSX dual cartridge system completely eliminates these problems by providing pre-packaged, sealed cartridges that connect directly to the integrated pump system.

Key Advantages of the Dual Cartridge System:

• Clean Material Handling: No direct contact with sticky LSR materials - cartridges are sealed and connect via quick-disconnect fittings
• Rapid Material Changeover: Switch between 20A, 40A, and 70A formulations in under 5 minutes with simple cartridge replacement
• Cost-Effective Testing: Small cartridge sizes enable affordable testing of different materials without large material commitments
• Extended Shelf Life: Sealed cartridge system prevents material contamination and extends usable life
• Workplace Safety: Eliminates exposure to uncured LSR materials and reduces cleanup requirements
• Inventory Simplification: Standardized cartridge system simplifies material ordering and storage

Faster and Cheaper Material Testing

The cartridge system enables rapid evaluation of different LSR formulations for new applications. Instead of purchasing large quantities of material for testing, manufacturers can order small test cartridges to evaluate material properties and processing characteristics. This approach reduces material costs for development projects by up to 75% while accelerating the material selection process.

Compact LSR Processing

The APSX-LSR features an innovative space-saving design specifically engineered for liquid silicone rubber applications. Unlike traditional large-scale LSR injection molding machines that require extensive factory floor space, the APSX-LSR can be integrated into nearly any workspace environment. The machine requires only standard electrical connections and can accommodate standard LSR mold sizes up to 6" by 4.8", making it ideal for prototyping, small-batch production, and educational applications.

Clean Room Compatible Operation

The all-electric design eliminates hydraulic fluids entirely, making the APSX-LSR perfect for medical device manufacturing, food-grade applications, and other clean room environments where contamination control is critical. The enclosed system prevents any potential fluid leakage while maintaining the precision required for high-quality LSR component production.

Cost-Effective LSR Production

By combining compact design with advanced technology, the APSX-LSR delivers professional-grade LSR injection molding capabilities at a fraction of the cost of traditional industrial LSR systems. This democratizes access to LSR manufacturing technology for small manufacturers, research institutions, and product development teams. Read more about it in this blog. 

Rapid Prototyping and Development

The APSX-LSR enables rapid iteration and development of LSR components with quick setup procedures and user-friendly operation. Design teams can move from concept to physical prototype in hours rather than weeks, accelerating product development cycles and reducing time-to-market for new silicone products.

APSX-LSR can also use the 3D printed mold tools if you choose not to use the metal molds for any reason. Should you use the 3D printed molds?

INTEGRATED APSX LSR PUMP SYSTEM

Material Changeover Simplicity

The APSX-LSR's dual cartridge system enables the fastest material changeover in the industry. Traditional LSR systems require extensive purging, cleaning, and recalibration when switching between materials, often taking hours and wasting significant amounts of material. The APSX system accomplishes material changeover in under 5 minutes through simple cartridge replacement.

Changeover Process:

• Disconnect Current Cartridges: Quick-disconnect fittings allow instant removal of empty cartridges
• Install New Cartridges:New cartridges snap into place within minutes
• Purge: Minimal purge cycle (less than 10 grams) clears previous material from lines
• Production Ready: System ready for production with new material in under 5 minutes

This rapid changeover capability enables manufacturers to run small batches economically and respond quickly to changing production requirements. The minimal material waste during changeover reduces operating costs and environmental impact.

Precision Dosing Technology

The pump system incorporates precision gear pumps with motor control, providing precision dosing across the full operating range. The system automatically maintains proper A:B component ratios (typically 1:1) while compensating for temperature and viscosity variations. Integrated sensors provide real-time monitoring and automatic adjustment capabilities.

Maintenance and Reliability

The integrated design significantly reduces maintenance requirements compared to separate pumping systems. All pump components are easily accessible for routine maintenance. The simplified design eliminates many potential failure points common in multi-vendor LSR systems.

Medical Grade LSR Materials

Medical grade liquid silicone rubbers meet stringent biocompatibility requirements including USP Class VI, ISO 10993, and FDA regulations. These materials are ideal for producing medical devices such as catheters, seals, gaskets, respiratory masks, and implantable components. The APSX-LSR's clean processing environment and precise temperature control ensure consistent production of medical-grade components that meet regulatory standards.

Food Grade LSR Formulations

Food contact LSR materials comply with FDA 21 CFR 177.2600 regulations. These formulations are perfect for producing kitchen utensils, food processing equipment seals, beverage system components, and consumer products that come into contact with food. The odorless and tasteless properties of properly processed LSR make it ideal for these applications.

High Temperature LSR Variants

Specialized high-temperature LSR formulations can withstand continuous exposure to temperatures exceeding 200°C while maintaining their elastic properties. These materials are essential for automotive under-hood applications, industrial sealing systems, and aerospace components where thermal stability is critical.

Conductive and Specialty LSR Materials

The APSX-LSR can process electrically conductive LSR formulations containing carbon black or metal fillers, as well as specialty variants with enhanced properties such as flame retardancy, chemical resistance, or specific hardness ranges. This versatility enables production of electronic keypads, EMI shielding components, and specialized industrial applications.

SETUP AND OPERATION PROCEDURES

The APSX-LSR is designed for intuitive operation while maintaining the precision required for professional LSR manufacturing. The setup process has been streamlined to minimize learning curves and enable rapid deployment in various manufacturing environments.

Initial Machine Setup

Machine installation requires only standard electrical connections and basic installation of the integrated pump and cartridge system. The compact footprint allows installation in most workshop environments without facility modifications. Initial calibration procedures ensure proper temperature control, dosing accuracy, and injection parameters for optimal performance.

Material Preparation and Loading

LSR materials are supplied in cartridge systems that integrate directly with the machine's dosing system. The automated material handling eliminates manual mixing and reduces the risk of contamination or incorrect ratios. Material changeover procedures allow for rapid transitions between different LSR formulations with minimal waste and downtime.

Mold Installation and Configuration

The mold mounting system accommodates standard LSR mold designs with integrated heating elements and temperature monitoring. Quick-connect fittings for heating circuits and cooling lines simplify mold installation and reduce setup time. The control system automatically recognizes mold-specific parameters and adjusts processing conditions accordingly.

Process Monitoring and Quality Control

The integrated control system provides real-time monitoring of critical process parameters including injection pressure, mold temperature, cure time, and injection amount.

APPLICATIONS AND INDUSTRY SOLUTIONS

The APSX-LSR opens new possibilities for liquid silicone rubber manufacturing across diverse industries and applications. The machine's versatility and precision make it suitable for both prototyping and production applications where traditional large-scale LSR equipment would be impractical or cost-prohibitive. Read more about it in this blog called "who needs an LSR injection molding machine". 

Medical Device Manufacturing

The medical device industry represents one of the largest markets for LSR components due to the material's biocompatibility, sterilization resistance, and durability. The APSX-LSR enables production of critical medical components including catheter seals, surgical instrument grips, drug delivery system components, and implantable device housings. The clean room compatible design ensures that components meet stringent medical device manufacturing standards.

Automotive Sealing Solutions

Automotive applications demand LSR components that can withstand extreme temperatures, chemical exposure, and mechanical stress. The APSX-LSR produces high-quality seals, gaskets, and vibration dampeners for automotive systems including engine compartments, fuel systems, and HVAC applications. The precision molding capabilities ensure consistent sealing performance and long service life.

Consumer Electronics and Appliances

The electronics industry increasingly relies on LSR components for waterproof seals, keypads, protective covers, and cable management solutions. The APSX-LSR's precision molding capabilities enable production of thin-wall components with complex geometries required for modern electronic devices. The material's electrical insulation properties and chemical resistance make it ideal for these demanding applications.

Food and Beverage Industry

Food processing equipment in consumer goods industry requires seals and components that can withstand cleaning chemicals, high temperatures, and repeated sterilization cycles. The APSX-LSR produces FDA-compliant components for food processing machinery, beverage dispensing systems, and commercial kitchen equipment. The material's non-toxic properties and resistance to bacterial growth make it essential for food safety applications.

USER MANUAL (PDF)

BROCHURE (PDF)

	Compact Size - APSX Machines feature a space-saving and streamlined design, perfect for desktop or limited workspaces. It can be moved into nearly any workbench and requires only basic 115VAC (US) or 230VAC (EU) wall outlet to operate. Standard mold size is 6" by 4.8".
	Optimized Risk Control: APSX Machines are engineered for simplicity in mind to maximize efficiency with minimal learning curve to save time and initial investment costs. APSX-PIM machines are user-friendly and intuitive, allowing your team to quickly adapt and operate them with ease. By minimizing the risk associated with complex machinery, APSX Machines empower your workforce to explore new product possibilities with no fear.
	Minimal Waste: APSX Machines facilitate eco-friendly production, promoting lean manufacturing and minimizing waste generation. We understand the importance of sustainability in today's world, and our machines are built to reduce material waste during the production process.
	Precision and Accuracy: APSX Machines ensure consistent industrial-quality outputs, delivering precise and accurate production results. Smaller doesn't mean less capable. The repeatability is an important process parameter that most of the benchtop injectors can not offer.
	Adaptability to Changing Requirements: APSX Machines seamlessly adapt to flexible and responsive production needs with quick setup times. As a business, you understand the importance of being agile and responsive to market demands. APSX Machines offer the flexibility you need to switch between different production requirements with ease.
	Cost-Effective Performance: APSX Machines offer cost-effective performance by minimizing both initial and ongoing operational costs. Their small batch capabilities enable optimal production efficiency while maintaining cost control.
	Time to Market Faster: APSX Machines enable rapid manufacturing with a short learning curve and simple setup procedures, ensuring agility and fast time-to-market. In today's competitive landscape, being the first to market can make all the difference. APSX Machines empower you to accelerate your production process, reduce lead times, and gain a competitive edge.

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All components of this machine are made in Cincinnati, OH USA. CE compliant. 

Showroom meeting is available with appointment. Please SCHEDULE a call or showroom demo day.

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