MINIJECTOR Injection Molding Machines represent more than 40 years of experience in designing and building quality plastic injection molding machinery. The low price of the MINIJECTOR, combined with its low tooling costs, make small production runs of 100 pieces as economically efficient and practical as runs of thousands.
Minijectors are available in pneumatic, electric servo, and hydraulic versions, as well as plunger or reciprocating screw plasticizing systems. Minijector machines may be used with any and all thermoplastics. Some of the typical application scenarios include:
- Prototypes of new or experimental parts
- Color mix testing
- Insert Molding
- ATSM tensile specimens
- Educational programs
Versatile Features & Benefits
Ability to Save Recipes
Manual Setpoint Adjustment
PLC Controlled
Potentiometer for Improved Accuracy
Low Noise*
Upgraded PLC and HMI*
Internal Cooling System
Three Heating Zones
All-Electric Servo Accuracy*
Reciprocating Screw
*Depending on Model
The Model 55 MiniJector features a reciprocating screw injection unit and a unique self-clamping “V” mold system for consistent molding results. Its independent hydraulic cylinder delivers full clamp force, and precision Siemens PLC/HMI controls enable easy manual adjustment of pressure, screw speed, and cycle timing. Compact and efficient, the Model 55 needs only 230V power and just 3.5 sq. ft. of bench space. Our Model 55 comes in three variations: the base Model 55, the Model 55P, and the Model 55E.
Model 55 Standard Specifications
Max Heat (°F)
700
Max Mold Size (W x L x H)
7.00” x 3.00” x 2.125” *
Power Requirement
220 V
Overall Dimensions (W x L x H)
20.5” x 27.0” x 45.0” §
Available Options ›
Reciprocating screw
Three heating zones
Manual setpoint adjustment
Potentiometer added to track screw position for improved accuracy
Upgrades to PLC and HMI
More control given to PLC
Ability to save Recipes
All-electric servo driven for best accuracy and precision
Low noise
Self-contained cooling system
Ability to save Recipes
Compact and efficient, the Model 45 MiniJector is our smallest benchtop injection molding machine. Our Model 45 requires just an air supply and 115V outlet, making for a quick setup. With interchangeable heating cylinders and multiple shot capacities, this model delivers maximum flexibility in only 55 square feet of space. An integrated 12 lb. material hopper automatically meters material for consistent production cycles.
Product Specifications:
Machine Type
Pneumatic
Max Heat (°F)
600
Max Mold Size (W x L x H)
7.0” x 3.0“ x 2.125” *
Power Requirement
115 V
Overall Dimensions (W x L x H)
22.4“ x 29.8” x 43.375
Available Options ›
The Model 50 MiniJector is a hydraulic benchtop injection molding machine with a fully self-contained system, meaning no external air is required. Powered by 230V single phase, it delivers precise 2,000 PSI injection with manual or semi-automatic controls for reliable, repeatable results. Built-in relief valve and pressure gauge help fine-tune every run.
Product Specifications:
Machine Type
Hydraulic
Max Heat (°F)
600
Max Mold Size (W x L x H)
7.0” x 3.0“ x 2.125” *
Power Requirement
220 V
Overall Dimensions (W x L x H)
33.25” x 25.63” x 43”
Available Options ›
The Model 70 MiniJector is a precision semi-automatic injection molding machine with a vertical 10-ton hydraulic clamp and injection unit. It supports center sprue molds including DME and universal bases, and fits compact production spaces at just 11 square feet. With 1 or 2 ounce injection capacities, the Model 70 easily integrates into assembly lines and handles both small and larger molded parts.
Product Specifications:
Machine Type
Hydraulic
Max Heat (°F)
700
Max Mold Size (W x L x H)
8.0” x 8.0” x 6.5”
Power Requirement
220 V
Max Shot Size (OZ)
Max Injection Pressure (PSI)
Overall Dimensions
1
16,000
48.0” x 36.0” x 85.5”
2
16,593
48.0” x 36.0” x 91.3”
Available Options ›
Download Our Brochure
Looking for full product specifications and a more detailed breakdown of our mini injection molding machines? Download a digital copy of our MINIJECTOR product brochure that features valuable information on our MODEL45, MODEL50, MODEL55, and MODEL70 products. Product specifications include:
Model Differences
Clamping Pressure
Maximum Mold Size
Injection Pressure
Power Requirements
Production Dimensions
Retrofit Services for Minijector Machines
Upgrade your existing MiniJector machines with our expert retrofitting services. Retrofitting extends the operating life of your equipment, enhances precision and reliability, and integrates modern controls or automation features for improved productivity. By updating legacy systems and components, you can achieve reduced downtime, lower maintenance costs, and substantial increases in output quality. Retrofits are tailored to your workflow, ensuring compatibility with current molds and production needs for maximum efficiency. Contact us to learn more about retrofitting opportunities for your business.
Contact Us
We’ll send you a production sample from one of our MINIJECTOR machines in the material of your choice! Choose between ABS, nylon, polycarbonate, polypropylene, or polystyrene (depending on availability at the time of your request) and we’ll ship the sample directly to you!