General-purpose Injection Molding Machine

General-Purpose Injection Molding Machines

Versatile, Energy-Efficient Plastic Injection Molding Systems for High-Yield Manufacturing
Our General-Purpose Injection Molding Machines (90T to 1500T) provide a highly stable, flexible manufacturing platform for processors handling diverse thermoplastic components. Designed to balance high clamping rigidity, precision melt control, and fast cycle times, this series allows contract manufacturers and OEM suppliers to run multiple molds and resins on a single machine—eliminating the need for capital-intensive, niche-specific equipment.

Whether you are producing high-volume packaging closures, automotive interior trims, electronic enclosures, or consumer durable goods, our engineering team configures every system around your target part weight, material rheology, and mold architecture.

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Technical Specifications

Technical Parameter	Specification
Clamping Force Range	90 Ton – 1,500 Ton
Shot Weight Range	45 g – 8,500 g (PS)
Compatible Resins	PP, PE, ABS, PS, PC, PA6/66, POM, PMMA, PBT, PC/ABS, TPE, TPU
Hydraulic Drive System	Electro-Hydraulic Servo System (Standard) / Fixed-Displacement Hydraulic System (Optional)
Control System	Techmation / Gefran High-Performance PLC with Multi-Language HMI
Hydraulic Components	Rexroth / Yuken Hydraulic Valves
Electrical Components	Schneider Electric Components
Bearings	NSK Bearings
Automation Interface	EUROMAP 12 / EUROMAP 68 Compatible
International Compliance	CE, ISO 9001

Key Performance Advantages

1. High-Rigidity Clamping Unit
Optimized Platen Kinematics: Finite Element Analysis (FEA) designed cast-iron platens ensure even clamping force distribution, minimizing platen deflection and extending mold life.

Mold Protection Logic: Low-pressure mold protection detects micro-obstructions before locking, preventing costly core and cavity damage.

Flexible Mold Accommodation: Generous tie-bar spacing, wide mold-height adjustment ranges, and long stroke capabilities support multi-cavity and deep-draw molds.

2. Precision Plasticizing & Injection Control
Nitrided Bimetallic Screw & Barrel: Standard nitrided configuration resists wear from standard resins; optional bimetallic or chrome-plated alloys available for abrasive or glass-filled polymers.

Multi-Stage Injection Control: PID multi-zone barrel heating combined with closed-loop injection pressure and speed profiling prevents sink marks, flash, and short shots.

Stable Back-Pressure Control: Proportional back-pressure valves ensure precise melt homogenization and shot-to-shot consistency.

3. Servo-Hydraulic Energy Savings (Up to 30%-75%)
Dynamic Power Response: High-response AC servo motors drive internal gear pumps, delivering hydraulic fluid strictly on demand and drawing near-zero power during cooling and idle stages.

Reduced Cooling Overhead: Lower hydraulic oil heat generation extends oil seal longevity, reduces oil degradation, and lowers plant cooling-water load.

4. Industrial Controller & Recipe Management
Recipe Storage: Save up to 200 distinct mold process profiles for rapid changeovers and immediate production setup.

Process Monitoring: Real-time tracking of injection time, cushion position, cycle duration, and temperature curves with integrated alarm logging.
Smart Connectivity: Ready for Industry 4.0 integration, central material feeding systems, and robotic end-of-arm tooling (EOAT).

General-Purpose vs. Application-Specific Machines

Requirement	General-Purpose Machine	Dedicated/Specialized Machine
Product Line Diversity	High: Ideal for contract molders running various molds	Low: Optimized for single-product manufacturing
Mold Change Frequency	Frequent: Designed for fast mechanical set-up	Infrequent: Set up for dedicated long runs
Capital Investment (CAPEX)	Balanced: Higher return on investment across multiple projects	High: Customized for specific ultra-high-speed needs
Resin Compatibility	Broad: PP, ABS, PC, Nylon, TPE, etc.	Narrow: Optimized for single-resin processing (e.g., PET preforms)
High-Speed Thin-Wall Packaging	Suitable for standard cycle times (<3.5s requires custom speed package)	Dedicated: Built specifically for ultra-high injection speeds (>800mm/s)

Target Component Applications

Automotive Parts

Door handles, dashboard clips, fuse boxes, brackets, light housings, HVAC ducts.

Electrical & Electronics

Terminal blocks, switch boxes, power tool casings, cable organizers, computer bezels.

Household & Consumer Goods

Storage bins, kitchenware handles, furniture fittings, toys, personal care housings.

Packaging & Closures

Threaded caps, flip-top lids, heavy-duty buckets, container handles, crates.

Industrial Components

Pipe fittings, valve bodies, nylon gears, cable ties, agricultural spray nozzles.

Complete Factory Cell & Automation Integration

We supply standalone machines or fully integrated, turn-key molding cells tailored to your output goals:

120T Plastic Injection Moulding Machine suppliers

Part Removal Robots

3-axis / 5-axis servo robots for automated part extraction, stacking, and sprues sorting.

Auxiliary Auxiliaries

Dehumidifying dryers, auto-loaders, mold temperature controllers (oil/water), industrial chillers, and granulators.

Downstream Automation

Conveyor belts, vision inspection systems, and automated packaging lines.

Factory Acceptance Testing (FAT) & Quality Assurance

Before any machine leaves our facility, it undergoes a 12-point Quality Verification Process:

Mechanical Alignment & Platen Parallelism Check
Hydraulic Pressure Leakage & Relief Valve Calibration
High-Voltage Electrical & Ground Safety Inspection
Temperature Control PID Stability Testing
Dry-Cycle Continuous Running Test (Minimum 24 Hours)
Mold Clamping & Low-Pressure Protection Verification
Ejector Force & Stroke Limit Calibration
Core-Pull Program & Hydraulic Sequencing Check
Servo Drive Energy Consumption Profiling
Lubrication System Pressure Distribution Test
HMI Alarm, Password, & Safety Door Interlock Audit
Optional Customer Mold Trial Run & Sample Inspection
Global Service, Installation & Spare Parts Support

Commissioning & On-Site Setup: Our field engineers assist with machine leveling, hydraulic oil filling, electrical wiring connection, and trial production at your facility.

Technical Training: Comprehensive operator training covering HMI parameter optimization, mold protection setup, and preventative maintenance schedules.

Spare Parts Security: Critical replacement parts (heaters, thermocouples, hydraulic seals, solenoid valves, directional valves) are stocked for immediate international dispatch.

Selection Guide: Request a Technical Proposal

To avoid undersizing or overpaying for unnecessary tonnage, submit your project details below. Our application engineers will calculate required clamping force, injection volume, tie-bar clearance, and cooling cycle times to provide an exact machine recommendation and official commercial quotation.

Please Provide the Following Parameters in Your Inquiry:

Plastic Material & Resin Grade (e.g., ABS, PP, PC+30% GF)
Part Dimensions (Length x Width x Height in mm)
Part Weight (g) & Wall Thickness (mm)
Mold Dimensions (Length x Width x Height in mm) & Total Weight (kg)
Number of Cavities (e.g., 1x2, 1x4, 1x16)
Target Cycle Time & Annual Output Quantity
Automation Requirements (e.g., Robot interface, Conveyor, Auto-loader)

FAQ

Q: How do I accurately determine the clamping force needed for my mold?

A: Clamping force is calculated based on the total projected area of the part plus the runner system, multiplied by the average cavity pressure required by the resin (e.g., 3-5 tons/sq.inch for PC, 2-3 tons/sq.inch for PP). Our engineering team can perform this calculation for you based on your part drawings or 3D CAD files.

Q: Can this general-purpose machine handle engineering plastics like Glass-Filled Nylon (PA66+GF)?

A: Yes. For glass-filled, corrosive, or flame-retardant resins, we supply reinforced bimetallic screws and barrels, specialized nozzle tips, and ceramic heating bands to resist wear and maintain melt homogeneity.

Q: What is the advantage of a servo-hydraulic system over a standard hydraulic machine?

A: A servo system uses a variable-speed motor that only turns at the exact speed required for the current phase of the cycle. During cooling and pressure holding, motor speed decreases significantly, reducing energy consumption by 30% to 75% while keeping hydraulic oil temperatures low.

Q: How quickly can process settings be adjusted during product changeovers?

A: Operators can instantly call up previously saved parameters from the PLC recipe library. With quick-change hydraulic oil connectors and standard EUROMAP ejector interfaces, physical mold changeovers can be completed efficiently.

Q: What technical documentation is provided with international shipments?

A: Every exported machine includes full English operator manuals, electrical circuit schematics, hydraulic pipeline diagrams, spare parts catalogs, CE compliance certificates, and foundation installation drawings.

Ningbo Yalishi(Arlex) Plastic Machinery Co., Ltd. is one of the most reliable general-purpose injection molding machine 1 manufacturers and suppliers in China, featured by quality products and low price. Please rest assured to wholesale cheap general-purpose injection molding machine 1 made in China here from our factory. Customized orders are welcome.