Vertical Injection Molding Machine (25T)

Name: EW-9050 Vertical Injection Molding Machine 25T
Brand: WENZHOU EAST WORLD AUTOMATION EQUIPMENT CO.,LTD
SKU: EW-9050
Availability: InStock

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Model：Vertical Injection Molding Machine (25T)

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Model:EW-9050
Clamping  force:25T
Max  shot  volume:49CM3
Injection  mode:Vertical  injection
Clamping  mode:vertical  clamping

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Model		EW-9050
Injection Unit	Screw Diameter	mm	22 26 28
	Injection Pressure	kg/cm2	1853 1328 1145
	Max Shot Weight	g	45 64 74
	Injection Rate	mm	120
	Screw Speed Max	Turn	0-255
	Nozzle Retraction	mm	135
	Number of temperature Control	Snt	2/3
Clamping unit	Clamping Force	tons	20/25
	Platen Size	mm	490*320
	Distance Between Tie Bar	mm	320*160
	Min Mold Height	mm	60/100
	Opening Stroke	mm	193
	Max Open Daylight	mm	253/293
	Ejector Force	tons	2
Power Heading unit	Max Hydraulic Pressure	kg/cm2	140
	Pump Output	L /min	28
	Pump Motor power	kw/HP	3.0./4.0HP
	Berrel Heating Power	kw	2
	Total Weight	KW	5.3
Other	Machine Weight	Kg	880
	Machine Dimension	m	1.4.92.4

● Vertical Clamp & Vertical Injection Architecture:Gravity holds pre-placed wire leads, terminals, and metal inserts firmly in the lower mold during closing. Ideal layout for strain relief grommets, plug overmolding, and wire harness encapsulation.

● Low-Pressure Mold Closing Protection:Switches to a low-pressure phase during the final closing stroke before full clamping force engages. If an insert or wire is misaligned, the machine automatically halts before applying 25 tonnes of pressure—preventing mold face damage and insert crushing.

● Three-Stage Independent Thermal Profiling:3-zone barrel and nozzle heating control provides precise temperature gradients. Prevents material burning, nozzle drool, or structural degradation when processing engineering thermoplastics like PVC, PA, ABS, and PE.

● Liftable Barrel & Nozzle Assembly:The barrel and nozzle can be lifted clear of the mold area via an integrated mechanism, allowing rapid nozzle purging, color changes, or maintenance without removing the mold tool.

● Automotive Wire Harness Connector Overmolding:Precision molding of waterproof connectors, sensor plugs, rubber grommets, and strain relief boots onto pre-stripped wire assemblies.

● Consumer Electronics & Power Cord Manufacturing:High-speed overmolding of USB-C plugs, DC power jacks, AC line plugs, and audio connectors.

● Industrial Automation & Sensor Encapsulation:Encapsulating M8/M12 industrial connectors, proximity switch housings, and PCB relay terminals.

● Medical Equipment Cable Assemblies: Low-pressure, cleanroom-ready overmolding of medical cable strain reliefs and custom probe connectors.

Q: What is the difference between vertical and horizontal injection molding machines?
In a vertical injection molding machine like the EW-9050, the clamping unit opens and closes vertically and the injection unit shoots downward into the mold. This configuration allows gravity to hold insert components (wire terminals, metal contacts) in position in the open mold cavity during the close phase — making vertical machines the standard choice for insert molding and cable connector overmolding applications. Horizontal machines are better suited for larger, non-insert single-material parts.
Q: What shot size is the EW-9050 capable of?
Maximum shot weight depends on the screw diameter selected: 45g (Ø22mm screw), 64g (Ø26mm screw), or 74g (Ø28mm screw). Maximum shot volume is 49cm³. This range covers the majority of cable connector, strain relief, and plug body applications in the 1–70g finished part weight range.
Q: What screw diameters are available for the EW-9050?
Three screw diameters are available: Ø22mm (highest injection pressure — 1853 kg/cm², best for thin-wall or long-flow parts), Ø26mm (balanced pressure and volume), and Ø28mm (largest shot capacity — 74g, best for larger connector housings). Screws are interchangeable on the same machine platform.
Q: Is the EW-9050 suitable for PVC cable connector overmolding?
Yes. The EW-9050's vertical clamp/vertical injection configuration is the industry-standard layout for PVC and PA overmolding onto pre-assembled wire harness components. The low-pressure mold closing system protects pre-loaded wire assemblies and terminal inserts from damage during the mold-close phase — a critical feature for insert overmolding applications.
Q: What does low-pressure mold protection do and why does it matter?
Low-pressure mold protection automatically reduces hydraulic closing pressure during the final phase of mold closure before full clamping force is applied. If a wire assembly or insert is misaligned in the cavity, the reduced closing force is insufficient to damage the mold face or the insert — the machine stops automatically. This feature prevents mold damage from misloaded inserts and reduces scrap rates in insert molding operations, directly lowering tooling maintenance costs in high-volume connector production.

Model：Vertical Injection Molding Machine (25T)