Prefilled Syringe Filling Machine-ZONESUN

Syringe Filling Machines

Prefilled Syringe Packaging Solution

ZONESUN syringe filling machine is designed to fill and assemble prefilled syringes used in pharmaceutical and medical production, covering processes such as filling, stoppering, capping, and related downstream operations.We offer customized solutions for glass, COP, COC, and other polymer syringes, as well as cartridge vials. From standalone equipment to complete production lines, every machine is configured according to your syringe specifications, fill volumes, cleanliness standards, and output requirements. The production line can integrate denesting, filling, stoppering, capping, labeling, and other processes as needed.

4 products

automatic cartridge vial filling machine

ZONESUN ZS-AFC60 Automatic Glass Carpules Dental Cartridge Vial Filling & Capping Machine for 1.5 - 3 ml Injection Bottles

ZONESUN ZS-AFY2 Automatic Double-Head Prefilled Syringe Vacuum Filling and Stoppering Machine

ZONESUN ZS-YTCP12V Ceramic Plunger Pump Cosmetic Essence Pre-filled Syringe Liquid Paste Filling Machine

ZONESUN ZS-ZFC2 Monoblock Automatic Prefilled Syringe Filling and Capping Machine for Liquid & Gel

Common Challenges in Prefilled Syringe Filling

Different products and production plans bring different requirements, but there are a few issues that come up again and again when manufacturers choosing a syringe filling machine for prefilled syringe production.

Frequent Changeovers Between Syringe Sizes

Many manufacturers don't run a single product all year round. Different fill volumes, syringe formats, or customer orders mean that changeovers happen regularly. If adjustments take too long, it can reduce available production time and make smaller batches less economical.

Air Bubbles Showing Up After Filling

Air can get trapped during filling, especially with gels or thicker products. The problem isn't only appearance. Excess air may affect fill consistency and create additional concerns for products that require high process stability.

One Filling System Doesn't Work for Every Product

Some products flow like water, while others are much thicker. Changing from one products to another often brings new challenges, from filling accuracy to filling speed and product changeover. What works well for one product may not be the best option for another.

Stoppering Issues

Poor stopper placement may lead to leakage, loose components, or problems in later packaging steps, resulting in more rejects and downtime.

Siliconization Processing Issue

Siliconization has a direct impact on how the plunger moves inside the syringe. Too much silicone oil, uneven coating, or differences between batches can all affect the final product, making process control more difficult.

Meeting GMP Expectations Without Slowing Production

Cleanroom production involves more than the room itself. Material selection, manual handling, and process consistency all matter. The challenge is finding a balance between meeting GMP requirements and maintaining efficient production.

Why Choose ZONESUN Syringe Filling Machines

ZONESUN syringe filling machines are designed to adapt to different products, syringe formats, and production requirements. Instead of fixed configurations, each solution can be customized according to filling materials, production targets, cleanliness standards, and future expansion plans.

Flexible for Different Syringe Types

Every project starts with the actual syringe, fill volume, and production requirements. Change syringe filling machine parts such as tooling, guide rails, and feeding systems can be configured for different specifications and future product expansion.

Filling Solutions for Different Products

Liquid products, gels, and higher-viscosity materials require different filling systems. Ceramic piston pumps and peristaltic pumps can be selected according to product characteristics, with disposable tubing options available for faster changeovers and reduced contamination risks.

Better Air Bubble Control

Top filling from the syringe head helps minimize trapped air, while vacuum filling provides additional control for products that require more consistent filling quality and lower residual air levels.

Reliable Stoppering Options

Conventional and vacuum stoppering systems can be configured based on product requirements. Vacuum stoppering is suitable for applications that need more stable sealing and better contact between the liquid surface and stopper.

Consistent Siliconization

Japanese micro-atomization spray valves help achieve stable, splash-free siliconization for syringe diameters from 3 mm to 20 mm, reducing uneven coating and excess silicone oil.

Built for GMP Production

Product-contact parts can be manufactured from SUS316L stainless steel and medical-grade materials, with optional Class 100 laminar flow protection available for higher cleanliness requirements. Modular designs also make future line expansion easier as production needs grow.

1

Automatic Denesting: Remove nested syringes from tubs and transfer them into next poduction station automatically.
2

Syringe Assembly: Prepare syringes and complete required assembly processes before filling.
3

Siliconization: Apply a controlled silicone coating to ensure smooth plunger movement and product performance.
4

Precision Filling: Accurately fill each syringe with the required volume of product.
5

Vacuum Stoppering or Capping: Seal syringes using vacuum stoppering or tip capping according to product requirements.
6

Plunger Rod Insertion: Insert and position plunger rods to complete syringe closure according to syringe type and production need.
7

Labeling: Apply labels and prepare finished syringes for downstream packaging.

The modular structure allows customers to start with individual machines and gradually develop complete prefilled syringe production lines as manufacturing requirements evolve. Supporting equipment for cartridge filling applications, labeling, inspection, and other downstream processes can also be integrated according to specific project needs.

Our systems can be customized for:
- Luer Lock syringes
- Luer Slip syringes
- Catheter tip syringes
- Cartridge vials
- Staked needle syringe
Machine configurations are developed according to specific product requirements rather than fixed formats.
Yes. Different pump technologies and filling methods are available for water-based products, medical gels, lubricants, and other semi-viscous formulations.
Typical configurations include:
- 600–800 units per hour
- 1,200–1,500 units per hour
- 1,800–2,400 units per hour
- 3,000–3,500 units per hour
Additional customization is available for specific projects and production requirements.
Yes. All ZONESUN syringe packaging machines are built with a modular design, allowing manufacturers to add processes such as assembly, labeling, and other related equipment to upgrade production line as production capacity grows. This flexibility helps support manufacturers at different stages of production and future expansion.
The following information helps our engineering team recommend suitable equipment:
- Container specifications
- Filling materials
- Filling volumes
- Production capacity targets
- Stopper or cap samples
- Cleanroom requirements
- Downstream packaging processes
Providing samples, drawings, or product photos can further improve customization efficiency.
No. ZONESUN syringe filling machines support recipe storage for different specifications. Once the parameters have been set, they can be saved and recalled directly during future changeovers, reducing setup time and avoiding repeated adjustments.