Fixed-Needle vs Luer-Lock Retractable Syringes

The structural difference

A fixed-needle retractable syringe integrates the needle with the syringe structure. A Luer-lock retractable syringe uses a threaded connection structure. Both Xingxu Kangda product families use a manually activated retraction sequence, but they differ in connection format and documented configurations.

Capacity ranges in the current catalog

• Fixed-needle retractable safety syringe: 0.3 ml, 0.5 ml, 1 ml, 2 ml, 2.5 ml, 3 ml and 5 ml.
• Luer-lock retractable safety syringe: 3 ml, 5 ml and 10 ml.
• Retractable insulin safety syringe: 0.5 ml and 1 ml, shown separately because its fine-gauge configurations and graduations serve a distinct evaluation path.

When buyers review fixed-needle models

The integrated structure can simplify configuration review because the product code already identifies the barrel capacity and documented needle option. Buyers should still verify gauge, cannula diameter, needle length, packaging and intended use for their market.

When buyers review Luer-lock models

The Luer-lock family may be relevant where the connection format is part of the purchasing specification. A familiar connection does not mean that every needle or accessory is automatically compatible with the retractable mechanism. Review only the combinations listed in the applicable catalog and confirmed by the supplier.

A defensible B2B selection process

• Start with the required barrel capacity.
• Confirm fixed-needle or Luer-lock structure.
• Match the documented gauge and length to the purchasing specification.
• Check the product code and carton configuration.
• Confirm target-market registration and tender requirements independently before purchase.