Precision Injection Molding for a World of Possibilities.
Welcome to Sound Plastic, the leading supplier of injection molding machines, molds, auxiliary equipment, tools, and packaging materials in the USA and Mexico. With over 15 years of experience and a team of qualified specialists, we provide custom moldworking solutions and use only quality materials for all our products.
![plastic cog items](/_next/image?url=%2Fhero.png&w=1920&q=75)
Trusted Partnerships with Industry Leaders
About Us
Sound Plastic, Factory Source, and Tubos y Empaques de Matamoros are three separate but interconnected businesses that work together to provide comprehensive manufacturing solutions to customers in the USA and Mexico.
Sound Plastic is a leading supplier of plastic molding products, offering custom moldworking services using high-quality materials. With 15 years of experience and partnerships with 35 companies worldwide, Sound Plastic has established itself as a trusted source of plastic molding equipment and solutions.
Factory Source is a manufacturing equipment and machinery supplier that offers everything from custom-made molds to auxiliary equipment and tools. With a strategic location near two seaports in Brownsville and Altamira, Factory Source is able to efficiently supply and serve businesses in both the USA and Mexico.
Tubos y Empaques de Matamoros specializes in the sale and distribution of a wide range of packaging materials, from stretch film and bubble wrap to cardboard boxes and corrugated materials. Their high-quality and eco-friendly packaging solutions provide essential protection to products during transport and storage.
Together, Sound Plastic, Factory Source, and Tubos y Empaques de Matamoros offer a comprehensive set of manufacturing solutions, from custom molding services to high-quality packaging materials. With a focus on quality and customer satisfaction, these businesses have established themselves as trusted partners to businesses looking to improve their manufacturing processes and boost their productivity.
- Years of Experience
- 20+
- Partners Worldwide
- 14
- Qualified Specialists
- 30
Products and Services
![Haijing-logo](/haijing.png)
![Sindon-logo](/sindon.jpg)
![Golden-Tiger-Moulds-logo](/gtm.png)
![CED-logo](/ced.png)
![YUDO-logo](/yudo.png)
![Stoner-logo](/stoner.png)
![Parker-logo](/parker.png)
- Injection Molding Machines
- This category refers to the machines that are used to produce plastic products through the injection molding process. These machines range in size and complexity depending on the needs of the manufacturer, and they are a critical component of the plastic molding process.
- Auxiliary Equipment
- This includes all of the equipment and tools that are used in conjunction with injection molding machines. This can include temperature control units, material dryers, conveyors, granulators, and more. This equipment is necessary to ensure that the injection molding process runs smoothly and efficiently.
- Production
- This category encompasses all of the processes and techniques involved in producing high-quality plastic products. This includes everything from design and engineering to tooling and assembly. Our production services are tailored to meet the unique needs of each customer, and we strive to deliver exceptional quality and value in every project we undertake.
- Parts & Molds
- Moulds are an essential part of the injection molding process, as they are used to shape the plastic material into the desired form. Our team of experienced engineers and technicians specialize in the design, fabrication, and maintenance of moulds, ensuring that our customers receive high-quality, reliable products that meet their exact specifications.
Injection Molding Machines
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Injection molding machines (Haijing)
Advanced and reliable molding machines
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Extrusion molding machines (Qing Chen Yu)
High-performance extrusion molding machines
Technical Specifications from Haijing
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Auxiliary Equipment
Dehumidifiying Drying Series
This category is applicable to plastic material drying to ensure that the material is properly dried and perfect products are produced. The 3-in-1 dehumidifier dryer combines three functions: dehumidifying, drying, and feeding. The hopper dryer and Euro dryer have the drying function only. The honeycomb dehumidifier dryer needs to be used with a dryer.
![Hopper Dryer](/hopper-dryer.png)
Hopper Dryer
![Eurochem Dryer](/eurochem-dryer.png)
Eurochem Dryer (Standard Payment)
![Large Dryer](/large-dryer.png)
Large Dryer
![Honeycomb rotary wheel type Three machine integrated dehumidification dryer (Integrated)](/honeycomb-rotary.png)
Honeycomb rotary wheel type Three machine integrated dehumidification dryer (Integrated)
![Honeycomb rotary wheel type Three machine integrated dehumidification dryer (Split type)](/honeycomb-rotary-wheel.png)
Honeycomb rotary wheel type Three machine integrated dehumidification dryer (Split type)
![XD-H Honeycomb rotor dehumidifier](/honeycomb-rotor-dehumidifier.png)
XD-H Honeycomb rotor dehumidifier
![XD-H Honeycomb rotor dehumidifier](/honeycomb-rotor-dehumidifier.png)
XD-H Honeycomb Rotor Dehumidifier
The Honeycomb rotary dehumidifier is mainly used to efficiently dehumidify engineering plastics with strong hygroscopicity. Under ideal conditions, the dew point of the honeycomb runner can reach below -40 ℃, and the maximum drying air volume can reach 4000m3/hr. This series features a P.I.D. temperature control system for precise regeneration temperature control and a cooler structure to ensure lower return air temperature and dew point. It also includes a return air filter to prevent pollution of the honeycomb runner by raw material dust. Honeycomb wheel dehumidification is preferred over silica gel adsorption honeycomb dehumidification.
![](/honeycomb-specs.png)
![XD-H Honeycomb rotor dehumidifier](/xhd-hopper-dryer.png)
XHD Hopper Dryer
This category includes equipment suitable for the ordinary drying of non-hygroscopic materials such as PE, PP, ABS, etc. The equipment is easy to install and operate. It features a high-performance hot air diffusion device that ensures uniform dispersion and improves drying efficiency. The curved design of the hot air pipe prevents dust accumulation and potential combustion of the bucket. The internal parts are made of stainless steel to prevent material contamination. The bucket is separated from the hopper for easy cleaning, and the series is equipped with exposed power switches for rapid refueling.
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Crushing & recycling
The crushing series products have a wide range of applications, primarily used for crushing leftover materials, defective products, and nozzle materials for injection molding. There are two types of crushers available: slow and low-speed (medium speed) crushers that are small in size and can be placed next to the injection molding machine for direct crushing and immediate recycling, and powerful crushers that are suitable for centralized crushing when the amount to be crushed exceeds 30Kg, and the size of the crushing material is large.
![Slow Speed Granulator](/slow-speed-granulator.png)
Slow Speed Granulator
![Slow Speed Granulator](/slow-speed-granulator-1.png)
Slow Speed Granulator
![Slow Speed Granulator](/low-speed-granulator.png)
Low Speed Granulator
![Slow Speed Granulator](/crusher.png)
Powerful Crusher
![Slow Speed Granulator](/slow-speed-granulators.png)
Slow Speed Granulator
The XG Slow Speed Granulator is ideal for crushing nozzle materials and leftover materials from injection molding with its slow grinding speed, making it suitable for plastics with strong hardness such as ABS, nylon, POM, HDPE, and more. It produces small grinding sounds and dust, and the crushed particles are at least 4-6mm, making it convenient for secondary recycling. The Zhao knife and adjustable free movable blade design, along with the slice type cutter and tapered integrated moving cutter, ensure stable and smooth operation. The low-speed rotation and acute angle moving knife design also improve cutting efficiency, and the aggregate box around the crushing chamber effectively prevents crushed materials from leaking out. Optional features include the T8 immediate recovery system, proportional valve, and hopper.
![Slow Speed Granulator](/slow-speed-granulator-specs.png)
![Low Speed Granulator](/low-speed-granulator.png)
Low Speed Granulator
The XG Low Speed Granulator is designed for fast and efficient crushing of soft plastics, such as PP, PE, PVC, and silica gel, and is suitable for use with nozzle materials/leftover materials from injection molding. It has a low crushing sound, less dust, and produces particles as small as 6mm, which can be easily recycled. The machine features a new claw-type cutter and an adjustable, free-movable blade design, with a low-speed rotary design using a slice cutter and tapered integrated moving cutter. The acute angle moving knife design helps to ensure stable and smooth operation, with an aggregate box that is designed around the crushing chamber to prevent the leakage of crushed materials during crushing. The optimum shearing angle and small resistance improve cutting efficiency, and the optimized design reduces the vibration generated during crushing. The low speed operation and sound insulation material box effectively reduce noise, and the machine is easy to disassemble and assemble, saving time and effort in maintenance. It can be equipped with a T8 immediate recycling system, proportional valve, and receiving hopper for supporting use.
![Slow Speed Granulator](/low-speed-granulator-specs.png)
![Slow Speed Granulator](/crusher.png)
XG-E Powerful Crusher
XG-E Powerful Crusher is designed for centralized crushing of large-sized materials or crushing amounts exceeding 30 kg/hr. Its advantages include a large crushing output, high efficiency, and an economical price. The machine has a solid structure, and its body is fully enclosed with a sound insulation box to reduce noise during crushing. The crushing chamber is made of high-hardness materials with a large thickness, high strength, strong wear resistance, no pollution, long service life, and convenient maintenance. The feeding space in the crushing chamber is also large, suitable for crushing large volume shell chip type cutters with a gradual cutting integrated design. The cutting tool is made of imported high-quality steel, which is wear-resistant, high hardness, and can be ground and reused.
![Slow Speed Granulator](/crusher-specs.png)
Mixing & Dosing
The weighing and metering products are designed to help in the mixing of plastic raw material particles and color masterbatch, resulting in evenly colored and beautifully shaped products. The color masterbatch machine is suitable for general mixing accuracy requirements and can be directly installed on the host to measure and mix according to the set proportion. For higher mixing accuracy requirements, the weighing type measuring machine is more suitable.
![Slow Speed Granulator](/double-color-volumetric-doser.png)
Double Color Volumetric Doser
![Volumetric Doser](/volumetric-doser.png)
Volumetric Doser
![Slow Speed Granulator](/gravimetric-blender.png)
Gravimetric Blender
![Slow Speed Granulator](/mono.png)
Monochrome master/two-color Master
The monochrome/two-color masterbatch machine is designed with a screw that is chrome plated for durability. The modular assembly structure makes it easy to disassemble, clean, and exchange. The standard base of the color masterbatch machine is the magnet of the batching hopper to prevent damage to the screw of the molding machine. It has the ability to meet external signal input requirements and can record the existing operation mode, which resumes operation after power restoration. The forced clearing function makes it convenient to change the color masterbatch, and it is suitable for extruders, requiring only a few wiring conversions. The rotating speed can be automatically adjusted with the processing speed of the extruder to maintain a fixed color masterbatch ratio. It has 50 groups of parameter formulas, which permanently record the discharge time and weight of finished products (per minute for the extruder's maximum output of the clock). The DC brushless motor requires no maintenance. It can detect the jam and overload of color masterbatch and automatically stop for protection and alarm. It can meet the micrometering requirements, and XCM-4 is equipped with a main hopper and agitator as standard.
![Slow Speed Granulator](/empty.png)
![Slow Speed Granulator](/gravimetric-blender.png)
XGB Gravimetric Blender
The XGB Gravimetric Blender is a highly accurate and efficient machine for blending plastic raw materials. The specification sheet notes that the output is determined based on the model selected by the customer, with the monochrome master data serving as a reference. The screw outer diameter is also dependent on the customer's model selection. An agitator can be added by including "MS" in the model name. If a screw with a diameter of 30mm is selected, "L" is added to indicate the difference between the screw with large output and the other interchangeable screws. The output of these models is measured by continuous operation of color masterbatch particles with a bulk density of 1.2kg/L and a diameter of 2-3 mm. Finally, the machine voltage specification is 1φ, 230VAC, 50Hz.
![Slow Speed Granulator](/gravi-specs.png)
Cooling & Heating
Cooling & Heating products are essential for maintaining consistent and optimal temperatures in industrial processes. Water Mold Temperature Machines and Oil Mold Temperature Machines are used to regulate the temperature of molds during production, ensuring high quality products. Water Cooled Chillers and Air Cooled Chillers are used to cool equipment and maintain normal temperatures in industrial settings, such as factories and manufacturing plants. These products offer reliable and efficient cooling solutions for a variety of applications.
![Slow Speed Granulator](/water.png)
Water Mold Temperature Machine
![Slow Speed Granulator](/oil.png)
Oil Mold Temperature Machine
![Slow Speed Granulator](/water-chiller.png)
Water Cooled Chiller
![Slow Speed Granulator](/air-chiller.png)
Air Cooled Chiller
![Slow Speed Granulator](/water-chiller.png)
XWC-A Water Cooled Chiller
XWD Water Temperature Controller is designed to maintain stable mold temperature and accurate temperature control, with a temperature control accuracy of ± 0.5 ℃. It adopts a full digital P.I.D. segmented temperature control system and has a 3.2" LCD for intuitive and easy operation. The machine is equipped with a high efficiency water circulation pump, suitable for precision molds and small diameter molds. Its internal parts are made of stainless steel and have high pressure explosion-proof properties. It also has power supply reverse phase protection, pump overload protection, over temperature protection, and low liquid level protection. The standard heating temperature can reach 120 ℃, and the high temperature heating temperature can reach 160 ℃. The machine also features high pressure protection, safe pressure relief, automatic water supply and exhaust function, and an indicator light for abnormal conditions. The high temperature type adopts magnetic pump, with stable performance and no possibility of leakage, especially suitable for long-term heating and constant temperature requirements.
![Slow Speed Granulator](/water-chiller-specs.png)
![Slow Speed Granulator](/air-chiller.png)
XWC-A Air Cooled Chiller
The XWC-A Air Cooled Chiller features a microcomputer control panel with PID digital temperature setting and display, as well as maximum and minimum temperature control delay protection. Its high efficiency shell and tube condenser and evaporator ensure excellent conductivity and long service life, while the USUNHOME/SANYO or French Mayurle/Bafoma compressor provide safety protection, low noise, power saving, and durability. The chiller also has high and low voltage safety protection switches, overload protection, over temperature safety protection, and antifreeze protection switch. It is ideal for cooling molds to reduce product forming cycles and maintaining equipment at normal temperatures, as well as for other industrial areas that require cooling.
![Slow Speed Granulator](/air-chiller-specs.png)
![Slow Speed Granulator](/water.png)
XWD Water Temperature Controller
XWD Water Temperature Controller is designed to maintain stable mold temperature and accurate temperature control, with a temperature control accuracy of ± 0.5 ℃. It adopts a full digital P.I.D. segmented temperature control system and has a 3.2" LCD for intuitive and easy operation. The machine is equipped with a high efficiency water circulation pump, suitable for precision molds and small diameter molds. Its internal parts are made of stainless steel and have high pressure explosion-proof properties. It also has power supply reverse phase protection, pump overload protection, over temperature protection, and low liquid level protection. The standard heating temperature can reach 120 ℃, and the high temperature heating temperature can reach 160 ℃. The machine also features high pressure protection, safe pressure relief, automatic water supply and exhaust function, and an indicator light for abnormal conditions. The high temperature type adopts magnetic pump, with stable performance and no possibility of leakage, especially suitable for long-term heating and constant temperature requirements.
![Slow Speed Granulator](/empty.png)
![Slow Speed Granulator](/oil.png)
XWD Oil Temperature Controller
The oil temperature controller XWD is equipped with several standard features to ensure precise and stable temperature control. The controller features a 3.2" LCD for intuitive operation, and allows for switching on and off at a fixed time of one week, with the temperature unit switchable between ℃/F. The full digital P.I.D. segmented temperature control system ensures temperature control accuracy of ± 0.5 ℃. It also comes with a high efficiency and high temperature pump suitable for precision and small diameter mold circuits, ensuring precise temperature control and high efficiency heat exchange. Safety features include power supply reverse phase protection, pump overload protection, over temperature protection, and low liquid level protection. The machine can automatically detect and display abnormalities, and the heating tubes are made of stainless steel. The standard heating temperature can reach 200 ℃, and the high temperature type can reach 350 ℃, with its interior also made of stainless steel for high pressure explosion-proof.
![Slow Speed Granulator](/oil-specs.png)
![Slow Speed Granulator](/loaders.png)
XAL Hopper Loaders
XAL hopper loaders have several features that make them efficient and user-friendly. They use a high-performance hot air diffusion device with uniform dispersion, which ensures that the plastic drying temperature remains even, and this leads to an improvement in the drying efficiency. The curved design of the hot air pipe prevents dust accumulation at the bottom of the electric heating pipe, which can cause combustion. All the parts inside and inside the barrel are easy to access and clean. The machines have rapid feeding and exposed power switches. XHD-25-150 electric heating tube is connected with aluminum sheet, and other machine models have temperature protectors to prevent fan failure and dry burning of faulty electric heating tube. The machines have excitation tripping over-temperature protection function that automatically cuts off the main power supply when the drying temperature exceeds the set deviation value. The machines use thermal insulation fans that prolong the service life of the machine. They also have 24-hour timers and use P.I.D board controllers, which are intuitive and easy to operate.
![Slow Speed Granulator](/hopper-specs.png)
Other Products
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Face shields (For COVID-19 prevention)
High-quality protective gear for safety
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Safety glasses
Protective glasses for eye safety
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Nitrile gloves
Durable gloves for hand protection
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End mill, taps, drills, burrs
High-quality cutting tools for precision
![](/products/mold-release.png)
Mold release, mold saver, and mold cleaner
Essential products for mold maintenance
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Mold spares (Ejectors, water connectors, springs, etc.)
Replacement parts for mold repairs
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PP, PE, POM, PC, ABS, TPO, Nylon, PBT
Diverse range of plastic materials for molding processes
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Pigments and additives
Colorants and functional additives for plastic products
Sale and Distribution of Tubes and Materials for Packaging
Tubos y Empaques de Matamoros
![](/products/stretch.png)
Stretch film
Durable and flexible packaging material
![](/products/polyfoam.png)
Polyfoam
Lightweight and protective packaging material
![](/products/pp-bands.png)
PP strapping bands
Strong and secure strapping for product shipping
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Bubble wrap
Protective packaging material for fragile items
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Cardboard boxes and corrugated
Versatile and eco-friendly packaging solutions
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Wood and plastic pallets
Durable pallets for efficient transport and storage
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Cardboard edge protectors
Essential protection for product edges during shipping
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Sticky tapes
Strong and reliable adhesive tapes for packaging and sealing
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Floor tapes
Marking and safety tapes for workplace organization and safety
Factory Source
Our manufacturing plant, situated in the industrial city of Matamoros, boasts exceptional assembly and fabrication capabilities. Over time, we have expanded and earned certifications such as ISO 9001:2015 and IMMEX, which demonstrate our commitment to meeting our customers' ever-evolving needs and requirements.
- Assembly and fabrication processes
- Range
- 45-550 tonnage
- Shifts
- 3 shifts: 6x24
- Production and Service Part Numbers
- 120 part numbers in production, 95 part numbers in services
- Direct and Indirect Employees
- 45 direct employees, 36 indirect employees (both tool shops)
- Molds
- 55 molds in production, 35 molds in service
- Machines
- 14 machines: 1 vertical (Insert Molding) and 13 horizontals
- Volume
- 35 million parts per year
Equipment Utilization
Machine # | Brand | Year of Manufacturing | Tonnage | Location | Type | Distance Betwen Bars | Shot Size Oz | Utilization | Utilization Forcasted Next 6 Months |
---|---|---|---|---|---|---|---|---|---|
24 | Haijing | 2016 | 45 | Matamoros | Vertical | - | - | 10% | 20% |
21 | Cincinnati | 1998 | 85 | Matamoros | Horizontal | 16.5'' x 14'' | 2.9 | 50% | 50% |
26 | Haijing | 2018 | 128 | Matamoros | Horizontal | 15.5'' x 15.5'' | 8.1 | 100% | 100% |
5 | Engel | 1996 | 150 | Matamoros | Horizontal | 19'' x 16'' | 8 | 70% | 0% |
11 | Haitian | 2014 | 150 | Matamoros | Horizontal | 18'' x 18'' | 10.8 | 100% | 100% |
12 | Haitian | 2014 | 150 | Matamoros | Horizontal | 18'' x 18'' | 10.8 | 100% | 50% |
22 | Cincinnati | 1997 | 150 | Matamoros | Horizontal | 18'' x 16.5'' | 7 | 50% | 0% |
13 | Haitian | 2014 | 250 | Matamoros | Horizontal | 22'' x 22'' | 19 | 100% | 50% |
18 | Cincinnati | 1998 | 440 | Matamoros | Horizontal | 29.5'' x 28.5'' | 21 | 30% | 20% |
25 | Cincinnati | 1998 | 550 | Matamoros | Horizontal | 34.5'' x 35.5'' | 54 | 20% | 20% |
27 | Haijing | 2022 | 398 | Matamoros | Horizontal | 730x700 | 1498 (gr) | 0% | 90% |
1 | Haijing | 2022 | 168 | Matamoros | Horizontal | 460 x 460 mm | 65 g | 25% | 90% |
2 | Haijing | 2022 | 128 | Matamoros | Horizontal | 15.5'' x 15.5'' | 8.1 | 100% | 100% |
3 | Haijing | 2022 | 128 | Matamoros | Horizontal | 15.5'' x 15.5'' | 8.1 | 0% | 90% |
1 | Haijing | 2022 | 55 | Brownsville | Horizontal | 280 x 277 mm | 65 g | 25% | 25% |
2 | Haijing | 2022 | 168 | Brownsville | Horizontal | 460 x 460 mm | 319 g | 100% | 100% |
3 | Engel | 2002 | 70 | Brownsville | 2 shot | - | - | 0% | 20% |
4 | Haijing | 2001 | 700 | Brownsville | Horizontal | - | - | 0% | TBD |
5 | Haijing | 2022 | 278 | Brownsville | Horizontal | - | - | 25% | 50% |
Metrology Lab
Our factory source metrology lab is equipped with a wide range of measuring equipment, including coordinate measuring machines, vision systems, surface roughness testers, and more. Our team of experienced metrologists ensures that all products meet strict quality standards by conducting thorough inspections and tests. We are committed to providing accurate and reliable measurements to our customers, and we continually invest in new equipment and training to stay up-to-date with the latest technology.
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![](/metro-2.png)
![Walnut desk organizer set with white modular trays, next to porcelain mug on wooden desk.](/metro-3.png)
Parts & Molds
We specialize in the design, manufacture, and maintenance of high-quality injection molds and precision parts. Our team of experienced engineers and technicians work closely with clients to ensure their unique specifications are met, using state-of-the-art technology and software such as Unigraphics, SolidWorks, and Pro/Engineer. Additionally, we have local workshops in Matamoros and Brownsville, as well as partnerships with Chinese workshops to provide cost-effective and efficient solutions for our clients. Our commitment to quality, precision, and customer satisfaction ensures that we deliver only the best products and services to our clients.
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![](/m-9.png)
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Contact Us
Contact us today to learn more about our products and services. Send us a message or give us a call and we'll get back to you as soon as possible.
Sound Plastic
2685B N. Indiana Ave. Brownsville Tx 78526
Factory Source
Av. Lauro Villar esquina con Norte 2 #7651. Ciudad Industrial. H. Matamoros Tamaulipas, Mexico
Calle 14 #143C Entre Calle Iturbide e Hidalgo Colonia Centro. H. Matamoros Tamaulipas, Mexico