Disposable PT tube double wall vacuum blood collection tubes are widely used in coagulation testing, where stable vacuum level and precise reagent control are critical.
Compared with single wall tubes, PT double wall tubes require higher manufacturing accuracy, including concentric tube assembly, reliable vacuum sealing, and long-term vacuum retention.
Our PT tube double wall making machine is designed as a complete automatic production solution, covering injection molding, double wall tube assembly, vacuum extraction, sealing, and online quality inspection.
This production line is suitable for medical manufacturers aiming to produce high-quality PT vacuum blood collection tubes with stable performance and consistent output.
A PT double wall vacuum blood collection tube consists of an inner functional tube and an outer protective tube.
The double wall structure enhances mechanical strength, vacuum stability, and safety during blood collection and transportation.
PT tubes are mainly used for prothrombin time (PT) testing, which requires:
Accurate vacuum volume
Stable inner pressure
Reliable sealing performance
Precise reagent dosage
Because of these strict requirements, PT tube manufacturing demands specialized production equipment, rather than standard blood tube machines.
The PT tube double wall production process includes the following key steps:
Injection molding of inner tube
Injection molding of outer tube
Automatic double wall tube alignment & assembly
Vacuum extraction and sealing
PT reagent dosing (optional integration)
Cap assembly
Online vacuum and leakage inspection
Finished tube output and packaging
Each process is automatically controlled to ensure consistent tube quality and vacuum stability.
Producing PT double wall vacuum blood collection tubes involves several technical challenges:
Precise concentric alignment of inner and outer tubes
Avoiding deformation during high-speed assembly
Stable vacuum extraction without leakage
Long-term vacuum retention during storage
Compatibility between tube materials and PT reagents
Our machine design focuses on solving these issues through mechanical precision, vacuum control systems, and online inspection technology.
Our PT tube double wall making machine integrates multiple systems into one automatic line:
High-precision tube alignment mechanism
Servo-driven assembly system for stable operation
Vacuum extraction unit with controlled pressure accuracy
Reliable sealing technology for long shelf life
Online leakage and vacuum inspection system
The entire line is designed for continuous, stable, and efficient production, suitable for medical-grade manufacturing standards.
Typical production capacity:
Output range: customizable according to configuration
Automation level: fully automatic
Tube size compatibility: standard PT tube specifications
Operation: 1–2 operators
Control system: PLC + touch screen
Technical parameters can be customized based on customer requirements and local standards.
Vacuum stability is the core requirement of PT tubes.
Our production line includes:
Real-time vacuum monitoring
Automatic leakage detection
Consistent sealing quality control
Stable vacuum retention testing logic
This ensures every PT tube meets medical laboratory testing requirements.
We provide not only the PT tube making machine, but also a complete production line solution, including:
Injection molding machines for inner and outer tubes
Mold design and optimization
Vacuum system
Assembly and inspection units
Auxiliary equipment integration
Customers receive a one-stop PT tube production solution, reducing risk and setup time.
Specialized experience in medical tube production lines
Engineering-focused solutions, not generic machines
Stable and scalable production design
Factory-direct technical support
Suitable for new factories and capacity expansion projects
We focus on helping customers successfully start and stabilize PT tube production, not just selling equipment.
Q1: Can this machine produce PT double wall vacuum blood collection tubes?
Yes, the production line is specifically designed for PT double wall tube structure with stable vacuum control.
Q2: Does the line include vacuum extraction and leakage testing?
Yes, vacuum extraction, sealing, and online leakage inspection are integrated.
Q3: Can you provide a complete PT tube production line?
Yes, we supply a complete solution including injection molding, assembly, vacuum system, and auxiliary equipment.
Q4: Is customization available?
Yes, machine configuration and output capacity can be customized according to customer requirements.