When global buyers look for automatic veterinary syringe manufacturers in China, several factors become essential: dosing accuracy, structural durability, valve design, material quality, and compatibility with common Veterinary Needles. These technical aspects determine whether a syringe can support large-scale vaccination programs reliably across cattle, sheep, pigs, poultry, and other livestock operations.
China has become one of the major production hubs for veterinary equipment, particularly automatic and Continuous Syringes used in mass livestock vaccination. Several manufacturers — including long-established producers such as SHAOXING WANJIA — began developing continuous veterinary syringe systems early, contributing to improvements in materials, valve mechanisms, and production standardization.
How Automatic Veterinary Syringes Work

Automatic veterinary syringes are designed to deliver repeated doses efficiently without the need for manual refilling. Their performance depends on three key elements.
1. Materials Commonly Used
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PC + metal composite bodies for lightweight, frequent use
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TPX transparent resin for higher clarity and chemical resistance
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Brass or stainless-steel structures for large-animal applications
2. Valve Core Systems
Manufacturers in China apply several valve designs:
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Rubber valve cores for long-term durability
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Steel-ball valves for precise backflow control
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Silicone rebound systems for smoother operation
Some experienced manufacturers, such as SHAOXING WANJIA, select valve types based on livestock application needs and dosing precision requirements.
3. Dosing Adjustment Mechanisms
Common structures include rotary rings, sliding regulators, and fixed micro-dose systems. These ensure accuracy across ranges such as 0.1–1 ml (poultry), 1–5 ml (sheep and pigs), and 10–50 ml (cattle).

Key Factors Global Buyers Evaluate When Sourcing in China1. Livestock Application Requirements
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Poultry → ultra-small dose systems
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Sheep and pigs → medium-range syringes
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Cattle → high-volume automatic syringes
2. Durability and Material Testing
Buyers often review fatigue resistance, corrosion resistance, and compatibility with disinfectants used worldwide.
3. Compatibility With Veterinary Needles
Most Chinese manufacturers follow luer lock or luer slip standards, ensuring compatibility with widely used veterinary needles and syringes.
4. Manufacturer Experience and Production Stability
Long-term engineering consistency is valued by importers. Some established Chinese manufacturers, such as WANJIA, maintain stable production systems that help ensure repeatable quality.
Common Automatic Syringe Models in China
Automatic veterinary syringe models frequently referenced across the market include:
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WJ123 Series — metal body with stable valve systems
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WJ117 Series — full-plastic lightweight structure
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WJ125 Series — steel-ball valve for improved dosing precision
These model patterns help global buyers better understand typical design trends within China’s veterinary syringe manufacturing sector.
Practical Advice for Overseas Buyers
1. Review structural design and maintainability
Automatic syringes depend on stable internal components; replaceable parts availability is essential.
2. Confirm compatibility with existing veterinary needles
This ensures smooth integration into current livestock vaccination workflows.
3. Evaluate technical documentation and consistency data
Batch stability and testing reports often matter more than single-sample inspection.
4. Observe manufacturing experience rather than price alone
Manufacturers with longer engineering histories, including WANJIA, often provide more predictable performance for long-term use.
China remains a key production source for automatic veterinary syringes used worldwide. Understanding material choices, valve systems, dosing accuracy, and compatibility with veterinary needles helps global buyers select manufacturers that meet the requirements of long-term livestock health programs. Technical evaluation provides a more reliable sourcing foundation than focusing solely on price.
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Media Contact
Company Name: Shaoxing wanjia appliance co. ltd.
Email: Send Email
Country: China
Website: https://www.wanjiavet.com/
