China Injection Molding Machine Manufacturers Suppliers Factory - Wholesale Service

Injection Molding Machines for High-Volume and Precision Plastic Production

Lisong manufactures plastic injection molding machines for packaging, PET preforms, household products and industrial plastic components. The product range includes precision, hydraulic, high-speed and application-specific machine configurations.

Machine selection depends on product weight, material, mold dimensions, required clamping force and production output. Compare the representative specifications below or contact our team for an initial machine selection review based on your product and mold requirements.

Pet Preform Injection Moulding Machine
The PET Preform Injection Moulding Machine is a specialized injection molding machine for producing PET bottle preforms. It is designed for PET preform manufacturers requiring reliable equipment...
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Precision Injection Molding Machine
The Lisong Precision Injection Molding Machine is designed for manufacturers requiring controlled and repeatable molding conditions in continuous production. The range includes the LS170G and...
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Water Bottle Injection Molding Machine
Product Parameter(specification) Product feature and application The LISONG PET Water bottle injection molding machine is stable, efficient, and future-ready (Center). Direct Pressure Clamping:...
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Bucket Injection Molding Machine
The Bucket Injection Molding Machine is a specialized injection molding machine for producing plastic buckets, pails and industrial containers. It is mainly used in industries such as paint...
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Hydraulic Injection Molding Machine
The Hydraulic Injection Molding Machine is a plastic molding machine that uses a hydraulic drive system to produce thermoplastic parts through injection molding.
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Beverage Bottle Injection Molding Machine
The Beverage Bottle Injection Molding Machine is a specialized injection molding machine for producing PET preforms used in bottled water, soft drinks, juice and other beverage packaging applications.
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20L Bucket Injection Moulding Machine
20L Bucket Injection Moulding Machine is a servo-hydraulic solution for high-volume production of rigid 20L plastic buckets in PP and HDPE.
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Pet High-Speed Series Precision Injection System
The PET High-Speed Series Precision Injection System is a high-speed PET preform injection molding machine developed specifically for PET preform production.
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High-speed Precision Injection System
The High-speed Precision Injection System is designed for high-cavity, high-volume PET preform production.
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Specialized Injection Molding Machine for Buckets
The Specialized Injection Molding Machine for Precision Buckets is a hydraulic injection molding machine developed for producing rigid plastic buckets and other large-capacity molded containers....
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Two-Platen Ingection Molding Machine
A hydraulic two-platen injection molding machine designed for large-mold and large-format plastic production. The 1,000-ton configuration is intended for applications where mold projected area,...
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PET-Preform Injection System
The PET Preform Injection System is a specialized injection molding system designed for producing PET bottle preforms with consistent quality and stable production performance. It is mainly used...
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Representative Injection Molding Machine Specifications

Compare the key specifications of these two representative models.

Specification	Unit	LS170G	LS290G
Model Description	—	170/470-400	290/580-770
International Size Description	—	1700-400	2900-770
Clamping Force	kN	1,870	3,190
Maximum Mold Opening Stroke	mm	430	550
Distance Between Tie Bars (H × V)	mm	470 × 410	580 × 515
Screw Diameter	mm	40	50
Specific Injection Pressure (up to 400°C)	bar	1,663	1,710
Maximum Shot Weight (PS)	g	217	411
Injection Speed (at 1,000 bar Injection Pressure)	mm/s	401	434
Electric Drive Capacity	kW	≈45	≈99.9
Net Weight (Without Oil)	kg	≈6,500	≈11,000
Machine Dimensions (L × W × H)	m	≈5.5 × 1.4 × 2.0	≈6.65 × 1.62 × 2.1

Comparing LS170G and LS290G
The LS170G and LS290G differ in clamping force, tie-bar spacing, screw diameter, maximum shot weight and mold opening stroke. The LS290G has higher listed clamping force and shot capacity, while the LS170G has smaller overall dimensions and a lower listed drive capacity.
Buyers should compare these specifications against the projected area of the molded parts, total shot weight, mold dimensions and target production conditions before selecting a machine.

Injection Molding Machines by Application

Thin-Wall Packaging

Thin-wall food containers, disposable cups and lunch boxes place particular demands on mold filling and cycle time. Machine evaluation should consider part geometry, resin properties, shot capacity, injection performance and the requirements of the intended mold.

PET Preforms and Bottles

PET preform production requires careful matching of preform weight, cavity count, mold dimensions and target output. Machine selection should also account for the resin's processing requirements and the injection unit configuration.
When requesting a machine recommendation, provide the preform weight, mold cavity count, mold dimensions and required production output where available.

Buckets and Large Plastic Containers

For buckets and larger containers, projected part area, total shot weight, clamping force and mold opening dimensions are important selection criteria. Mold installation requirements and the intended production cycle should be checked before confirming a machine configuration.

Industrial Plastic Components

For industrial plastic components, machine selection depends on part dimensions, material behavior, mold design and required product tolerances. Where dimensional consistency is critical, buyers should also define the relevant product acceptance criteria and production requirements before selecting a machine.

How to Select the Right Injection Molding Machine

Selecting an injection molding machine requires evaluating the molded part, resin, mold and production requirements together. The following information helps establish an initial basis for machine selection.

Product and Material Requirements

Provide the product drawing or photo, resin type, approximate part weight and any critical product tolerances.

Mold Compatibility

Confirm mold dimensions, mold height, tie-bar spacing, mold weight and required opening stroke. Other machine-mold interface requirements should also be reviewed where applicable.

Injection and Clamping Requirements

Evaluate total shot weight, including runners where applicable, against the machine's usable injection capacity under the intended processing conditions. Clamping force should be assessed based on projected part area, cavity layout, resin characteristics and molding conditions.

Production and Automation Requirements

Specify target output, expected cycle time, part-removal requirements, auxiliary equipment and available factory utilities.

Technical Review Before Ordering

The initial information supports preliminary machine screening. Final selection should be confirmed against the complete machine specifications, mold requirements, material processing conditions and intended production targets.

Manufacturing and Engineering Capability

Manufacturing Facility
Lisong manufactures injection molding machines at its production facility in Yuyao, Zhejiang, China. The facility covers 40,000 m² and supports the production of injection molding machines and related control and automation systems.

Lead Time and Delivery

Standard Injection Molding Machines
The typical manufacturing lead time for standard injection molding machines is 30–45 days after order confirmation.

PET Preform Injection Molding Machines
The typical manufacturing lead time for PET preform injection molding machines is 45–60 days after order confirmation.

Delivery Schedule
Actual lead times depend on the selected model, machine configuration, customization requirements and production schedule. Manufacturing lead time is separate from international transit time unless otherwise specified in the quotation or contract. The confirmed production and shipping schedule should be agreed upon before order placement.

Technical Support and After-Sales Service

Installation and Operation

Technical guidance and training are provided for machine installation and operation.

Maintenance and Spare Parts

Maintenance guidance and spare-parts support are available subject to machine model, parts availability and service arrangements.

Technical Consultation

Our technical team provides consultation related to machine operation, maintenance and production requirements.

Overseas Project Support

For overseas projects, we confirm the support scope and installation arrangements according to the machine configuration and project requirements.

Frequently Asked Questions

Q: Can an existing mold be used with a Lisong injection molding machine?

A: Existing molds can be evaluated for compatibility based on mold dimensions, tie-bar spacing, mold height, opening stroke, mold weight and other relevant machine interfaces.

Q: Can Lisong recommend a suitable machine before an order is placed?

A: Yes. Share your product details, material, part weight, mold specifications and target output. Lisong can review your requirements and suggest suitable machine options for further evaluation.

Q: Can Lisong machines be integrated with existing production lines?

A: Integration requirements can be reviewed based on the production setup, including part removal, material handling, auxiliary equipment and relevant machine interfaces.

Q: What should buyers verify before purchasing an injection molding machine?

A: Buyers should verify machine specifications, mold compatibility, injection capacity, clamping force, safety features, installation requirements, delivery terms and the scope of after-sales service.

Q: What technical support is available after delivery?

A: Lisong can provide technical consultation on machine operation, maintenance and spare parts. Installation and on-site support arrangements should be confirmed based on the project requirements.

Q: Can one machine process different plastic materials?

A: Compatibility depends on the resin's processing requirements and the machine's injection-unit configuration, including the screw and barrel. Confirm material compatibility for the intended application before ordering.

Q: What is the difference between shot weight and finished-part weight?

A: Shot weight describes injection capacity under specified measurement conditions. Finished-part weight is the weight of the molded component. The usable shot size depends on the resin, runner system and molding conditions.

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