PET Preform Injection Molding Machine

 

This PET Preform Injection Molding Machine is designed for stable, continuous production of PET preforms used in beverage and food packaging.

 

It focuses on process stability, cavity balance, and long-term running reliability in high-output manufacturing environments. The system is built for factories where production downtime, weight variation, and quality inconsistency directly affect operating cost.

 

 

Specifications	UNIT	NTPET500
International size rating		5540
INJECTION UNIT
Screw diameter	mm	110
Screw L/D ratio	L/D	25
Theoretical shot volume	cm³	4467
Shot weight (PET)	g	5181
Max.screw speed	rpm	133
CLAMPING UNIT
Clamping force	kN	5100
Opening stroke	mm	770
Distance between tie-bars	mm	880 × 800
Movable platen size	mm	1260 × 1180
Max.mold height	mm	920
Min.mold height	mm	350
Ejector stroke	mm	300
Ejector force	kN	300
Number of ejector pins		16+1
OTHERS
Drive power	kW	37+37
Heating capacity	kW	45
Machine dimensions	m	9.58 × 2.2 × 2.35
Machine weight	t	23
Oil tank capacity	L	900

 

 

All key components are selected based on long-term industrial operation requirements to ensure stable performance under continuous production loads.

	Name	Brand Name
Electrical unit	Computer	TECHMATION
	Air master switch	SCHNEIDER
	Servo driver	Inovance
	Servo motor	Italy PHASE
	AC contactor	SCHNEIDER
	Thermal overload protector	SCHNEIDER
	Electronic ruler	VISHAY
Hydraulic unit	Hydraulic Motor	Italy INTEMOT
	Gear pump	Sumitomo
	Proportional pressure valve flow valve	YUKEN
	Directional valve	YUKEN
	Pressure transducer	Danfoss
	Proportional back pressure valve	HNC
	Oil seal	HALLITE
	Dust Seals	HALLITE
	Lubricating oil pump	HERG
	Name	National standard
Mechanical unit	Platens & Clamping Castings	QT500-7
	Tie-bars	40Cr
	Pin shaft	42CrMo
	Screw barrel	38CrMoAI
	Screw head, rubber ring, rubber ring gasket	SKD61(JIS)

 

 

A specialized 25:1 L/D screw and double-loop hydraulic system allow simultaneous charging and mold opening to achieve 11–15 second cycle times for 24g preforms.

 

Integrated patented hot runner controls maintain temperature within ±0.5°C to reduce Acetaldehyde (AA) levels and eliminate gate-sealing defects.

 

A high-rigidity five-point toggle clamping mechanism minimizes platen deformation to keep preform wall-thickness eccentricity within ±0.05mm.

 

Premium components from YUKEN, Phase, and Schneider ensure reliable operation and straightforward local sourcing for global buyers.

 

 

The NTPET500 system is optimized for high-cavity PET preform molds.

 

Balanced hydraulic distribution and ejector design (16+1 ejector pins) support stable operation with standard 24, 32, 48, and up to 72-cavity hot runner molds.

 

The system is engineered for compatibility with mainstream global PET preform mold standards, allowing integration into existing production lines with minimal modification.

 

Final integration performance depends on mold design, hot runner balance, and downstream cooling system configuration.

 

 

 

Ocean Freight Preparation: Every machine is prepped using a strict, multi-step process to ensure it arrives at your factory in factory-new condition:

Rust Prevention: High-grade anti-rust coating on all bare metal surfaces, platen faces, and tie-bars.

 

Moisture Protection: Heavy-duty vacuum plastic wrapping packed with industrial desiccant bags to block sea dampness.

 

Container Securing: Bolted onto reinforced steel or heavy wooden skids, then cross-braced and tension-strapped inside the container with high-tensile steel wire ropes to eliminate shipping movement.

 

 

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