Soft PVC (Vinyl) Tube Extrusion Line for Medical Tubing

A custom complete line for producing smooth, single-layer soft PVC oxygen, infusion and other medical tubing without braid or steel-wire reinforcement.

Single-layer, non-braided tubingSoft PVC / vinyl tubingPreviously tested down to 1.6 mmServo cutting or optional winding

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Quick Facts

Answer card

A soft PVC tube extrusion line is a continuous production system that turns pre-compounded flexible PVC pellets into single-layer tubing. Some buyers call the finished product vinyl tube or clear vinyl tubing. The line plasticizes the material in a single-screw extruder, forms the tube through dedicated tooling, cools it in water, pulls it at a controlled speed and then cuts it to length or winds it into coils.

Jinxin supplies the configured extrusion equipment, not finished PVC tubing and not only a standalone extruder.

Quick facts table

Field	Reference
Line type	Soft PVC tube extrusion line / vinyl tube extrusion machine
Tube structure	Single-layer, single-chamber, non-braided and non-reinforced
Material	Pre-compounded soft PVC grade reviewed for the buyer's product
Finished products	Soft PVC oxygen tubing, infusion / IV tubing and other smooth single-layer medical tubing
Small-tube reference	A previous Jinxin project tested tube production down to 1.6 mm; final feasibility depends on material, wall thickness, tolerance and tooling review
Main process	Material feeding -> single-screw extrusion -> tube die forming -> water cooling -> haul-off -> servo cutting or optional winding
Base downstream	Water cooling tank plus combined haul-off and servo cutting unit
Optional dimensional control	Vacuum sizing tank and online laser diameter gauge selected when the tube drawing, tolerance and acceptance plan require them
Quote basis	Material grade, OD, ID, wall thickness, tolerance, output, cut length or coil format, end-product standard and cleanliness requirement

Base line: single-screw extruder, tube tooling, open water cooling, synchronized haul-off and servo cutting; winding is optional.

Smooth, single-layer oxygen, infusion / IV and similar medical tubing confirmed by sample or drawing.

Key Control Points for Flexible Small Tubing

Small flexible tubes can show size drift or deformation even when the extruder is running steadily. The line therefore needs coordinated control from the die through final collection.

Tube Quality Parameters Buyers Should Specify

These are finished-tube targets used to configure and test the line. They are not fixed values that one machine can guarantee for every compound and tube size.

Tube Quality Target	What It Means for the Line
Concentricity and roundness	Die/core alignment, sizing or cooling stability and downstream alignment affect how evenly the wall is distributed around the tube
OD, ID and wall tolerance	Tooling, stable melt delivery, cooling and haul-off synchronization work together; optional laser measurement monitors OD but does not replace ID and wall inspection
Transparency and clarity	Approved compound, thermal control, tooling condition, cooling-water quality and clean handling affect visual appearance
Flexibility and kink resistance	Compound grade, hardness and wall geometry define the product target; haul-off and winding should preserve it without flattening or stretching
Surface quality	Melt stability, die condition, water condition, guides and belt contact can create or prevent lines, drag marks and contamination
Cut-end quality	Tube support, blade motion, servo timing and line speed affect squareness, burrs, flattening and readiness for downstream assembly

Soft PVC Compound and Temperature Window

Soft PVC compounds do not share one universal processing recipe. Formulation, hardness and thermal behavior affect screw selection, barrel settings, surface appearance and output stability. Jinxin confirms the starting settings through material review and project testing rather than publishing one temperature profile for every compound.

If the end product requires a DEHP-free compound or another plasticizer restriction, the buyer should identify that requirement and provide or approve the corresponding pre-compounded grade. Jinxin can configure the line around the approved material, but the equipment quotation does not certify the compound chemistry.

OD, ID and Wall Consistency

The die and core establish the basic tube geometry. Cooling stability and the balance between extrusion output and haul-off speed then affect the final OD, ID and wall thickness. Buyers with tight tolerances should provide both nominal dimensions and allowed variation.

Surface Quality and Cooling

Water condition, guide alignment and downstream contact can affect marks on transparent or soft tubing. The cooling and pulling sections are selected to support a clean surface without claiming a medical cleanliness class that has not been specified by the buyer.

Cut Deformation

A soft tube can flatten or distort during cutting if support, blade motion and line speed are poorly matched. The servo cutting configuration is reviewed against tube hardness, wall thickness, required cut length and acceptable end shape.

Winding Tension

For coiled tubing, excessive tension can stretch or flatten the product. The winder and haul-off are configured together according to coil size, tube softness and packaging method.

Soft PVC Tube Extrusion Process

The process is continuous, but the die, cooling length, pulling speed and collection method are configured around the actual tube rather than copied from a generic machine list.

01
Material review and feeding

Confirm the pre-compounded soft PVC grade. Resin supplier instructions and the buyer's end-product requirements are reviewed before the temperature and handling plan is set.
02
Single-screw extrusion

The single-screw extruder plasticizes the material and delivers a stable melt to the tube die. Screw selection and temperature settings are confirmed during project engineering and testing.
03
Tube die forming

A matched die and core form the tube OD, ID and wall. Tooling is prepared according to the approved sample or drawing.
04
Cooling and sizing

The base line uses an open water cooling tank so the tube shape and surface can stabilize. A vacuum sizing tank can be added when the tube geometry and tolerance target require vacuum calibration.
05
Synchronized haul-off

Pulling speed is matched to extrusion output. Stable synchronization helps control diameter, wall consistency and deformation on flexible small tubing.
extruder output and haul-off speed synchronization
06
Servo cutting or winding

The combined haul-off and servo cutter produces fixed lengths. When the tube is supplied in coils, a suitable winder is added instead.
07
Factory verification

When the agreed resin and tooling are available, the configured line can be test-run against the confirmed tube target before shipment.

Process flow: Soft PVC pellets -> single-screw extrusion -> tube die -> open water cooling or project-specific vacuum sizing -> synchronized haul-off -> servo cutting or optional winding -> finished single-layer tube

Complete Soft PVC Tube Extrusion Line Scope

Jinxin quotes a complete, project-configured soft PVC tube extrusion line. The final equipment list follows the tube sample or drawing, resin and collection method rather than a generic catalog model.

Single-Screw Extruder

The extrusion core plasticizes the buyer-approved soft PVC compound and supplies a stable melt to the tooling. Screw selection, temperature-zone setup and output are reviewed against compound behavior, tube dimensions and the surface target.

Buyer confirmation: compound data, hardness, transparency target, tube size family and target output.

Tube Die and Core Tooling

The die and core establish the basic OD, ID, wall distribution and concentricity. Each tube family needs tooling matched to the approved drawing; a diameter alone is not enough to define the flow path or core geometry.

Buyer confirmation: dimensioned drawing, OD/ID tolerances, wall target, concentricity or roundness requirement and approved sample where available.

Cooling and Sizing Section

The base line uses an open water cooling tank with guides selected for the tube size and cooling time. Stable water condition, guide alignment and controlled tube contact help preserve roundness and surface quality. A vacuum sizing tank can be added when the drawing and tolerance target require vacuum calibration.

Buyer confirmation: tube geometry, roundness and tolerance target, surface acceptance method, cooling-water conditions and whether vacuum sizing is required.

Synchronized Haul-Off and Servo Cutter

The belt haul-off matches pulling speed to extrusion output so the soft tube is transported with controlled deformation. The servo cutter is configured around tube hardness, wall thickness, line speed, required length and the buyer's cut-end acceptance method.

Buyer confirmation: cut length and tolerance, acceptable end shape, tube softness, surface-mark limit and required production format.

Optional Winder

For tubing supplied in coils, the winder is matched to tube softness, coil dimensions and packaging method. Haul-off and winding tension must be coordinated so the finished tube is not stretched, flattened or marked during collection.

Buyer confirmation: coil ID and OD, target length, reel or reel-free format, packaging method and acceptable winding tension.

Optional Online Laser Diameter Gauge

An online laser diameter gauge can be added when the buyer requires continuous OD monitoring or a defined inspection record. The quotation must state the measurement range, data or alarm requirement and acceptance method; no unverified precision figure is implied.

Buyer confirmation: nominal OD, tolerance band, monitoring frequency, alarm or feedback requirement and required QC records.

Typical Applications

This page focuses on smooth, single-layer medical tubing made from a buyer-approved soft PVC compound. The line produces the tubing, not complete medical assemblies.

Smooth green oxygen tubing shown in a respiratory application. The extrusion line produces the tubing, not the connector, cannula, mask or strap components.

Clear infusion tubing shown within an IV application assembly. The extrusion line produces the tubing, not the valve, connector, needle or complete infusion set.

Oxygen / respiratory tubing

Connector-fit OD/ID, wall uniformity, flexibility or kink target, clarity, surface, cleanliness, cut or coil format and buyer's end-product standard

Infusion / IV tubing

ID and wall target, allowed variation, clarity, surface, cut-end acceptance, cleanliness, collection method and device-validation target

Other smooth single-layer medical tubing

Approved sample or drawing, dimensions, concentricity or roundness target, compound, surface and required downstream format

Clear medical vinyl tubing

Clarity requirement, tube geometry, surface expectation, cleanliness requirement and coil or cut format

This page does not cover catheter, multi-lumen, multilayer, radiopaque-stripe or cleanroom production systems. Corrugated, steel-wire, suction, braided / reinforced and food-contact tubing are also excluded.

Technical Parameters

The table below is a quotation framework. It intentionally avoids publishing unverified fixed output, speed or tolerance figures.

Parameter	Jinxin Reference
Tube structure	Single-layer / single-chamber flexible tube; no braid or reinforcement
Tube material	Pre-compounded soft PVC pellets reviewed by grade, hardness, clarity and any buyer-specified plasticizer restriction
Finished products	Smooth single-layer soft PVC medical tubing, including buyer-specified oxygen and infusion tube projects
Smallest tested reference	Down to 1.6 mm on a previous project; subject to material, wall thickness, tolerance and project confirmation
Extrusion platform	Single-screw extruder selected by material, tube size and target output
Tooling	Dedicated die and core matched to OD, ID and wall thickness
Cooling and sizing	Open water cooling tank as the base configuration; vacuum sizing tank available when the drawing and tolerance target require it
Haul-off and cutting	Combined synchronized haul-off with servo cutting for fixed lengths
Winding	Optional, selected according to tube and coil format
Online measurement	Optional laser diameter gauge selected according to OD tolerance, monitoring and acceptance requirements
Output and line speed	Confirmed after tube, material and quality review
Electrical standard	Voltage, frequency and component requirements confirmed by destination and project scope
Factory test	Agreed according to available resin, tooling and acceptance target

Soft PVC Medical Tube Extrusion Line Running

See the single-screw extrusion, open water cooling and synchronized cutting platform in operation.

Watch the Soft PVC Medical Tube Line on YouTube

Equipment-platform reference only. The final line follows the approved compound, tube drawing, tolerance, output target and cutting or winding method.

Why Choose Jinxin for Soft PVC Tube Extrusion

Configured from Your Tube

The extruder, tooling, cooling and downstream units are selected from the actual sample or drawing, compound grade, dimensions, tolerance, output and collection method.

Product review: Sample or drawing, compound, OD, ID, wall thickness and tolerance are reviewed first.
Line selection: Single-screw extrusion, open water cooling and cutting or winding are matched to the confirmed tube; vacuum sizing and online laser measurement are added only when required.
Test basis: Agreed material and tooling can be used for factory verification.

Electrical cabinet and prepared wear-parts kit for project handover

Itemized Equipment Scope

The quotation lists the selected line modules, options and service scope so buyers can compare complete configurations.

Base line: Extruder, tooling, water cooling, haul-off and servo cutting.
Options: Winding, vacuum sizing, online laser diameter measurement and other project-specific additions are listed separately.
Delivery scope: Electrical requirements, packing, installation and training are confirmed by project.

Export packing and container loading

Factory Test and Handover

When the approved compound and tooling are available, Jinxin can verify stable running before shipment and record practical startup settings.

Verification target: Dimensions, surface and cutting or winding are checked against the agreed tube target.
Startup settings: Temperature, screw speed and haul-off speed can be recorded after stable running.
Buyer approval: The factory test scope and acceptance method are agreed before testing.

Die and line adjustment during a factory test run

FAQ

01 What is a soft PVC tube extrusion line?

It is a complete production system for making flexible single-layer PVC tubing from pre-compounded pellets. A Jinxin line combines a single-screw extruder, tube die tooling, water cooling, synchronized haul-off and servo cutting or optional winding. “Vinyl tube extrusion machine” is an English search variant for the same soft PVC equipment category.

02 Is this line for single-layer tubing, corrugated hose or PVC braided hose?

It is for smooth, single-layer, non-braided medical tubing. It cannot make corrugated tube, steel-wire helix / spiral hose or suction hose. PVC braided hose contains textile reinforcement and needs inner-tube extrusion, a braiding unit and an outer coating stage; that separate Jinxin product is covered by the PVC braided hose extrusion line.

PVC braided hose extrusion line

03 Can this line make PVC oxygen tubing and infusion / IV tubing?

Yes. It can be configured for buyer-specified smooth, single-layer oxygen / respiratory tubing and infusion / IV tubing. The buyer should provide the approved resin, tube drawing, tolerance, cleanliness requirement, cutting requirement and applicable end-product standard. The equipment quotation does not by itself certify the finished tube as sterile, biocompatible or compliant with a specific medical regulation.

04 What tube sizes can this line produce?

Jinxin has a previous tested reference down to 1.6 mm, but there is no universal size range for every soft PVC compound and wall thickness. The usable range is confirmed from the OD, ID, wall, approved compound, tolerance, tooling, cooling method and target output. Send a dimensioned drawing rather than only a nominal diameter.

05 Are vacuum sizing and online laser measurement standard?

No. The base configuration uses an open water cooling tank followed by synchronized haul-off. A vacuum sizing tank can be added when the drawing, roundness and tolerance target require vacuum calibration. An online laser diameter gauge can be added for continuous OD monitoring or defined QC records. Both are project-dependent options, and the quotation must state the required measurement and acceptance method.

06 Which tube quality parameters should I specify?

Specify nominal OD, ID and wall thickness together with their allowed variation. Also state any concentricity or roundness target, transparency or color requirement, flexibility or kink target, surface acceptance, cut-end requirement, cleanliness requirement and whether continuous OD records are needed. These inputs determine the tooling, cooling or sizing, haul-off, cutting and optional measurement scope.

07 What information is required for a quotation?

Send the soft PVC compound grade, hardness and any DEHP-free or other plasticizer restriction; tube OD, ID, wall thickness and tolerance; quality targets; cut length or coil format; output target; application; end-product standard; cleanliness requirement and factory voltage. A sample, drawing or short production video is also useful.

Quotation inputs

For a faster quotation, send

Send the soft PVC compound, dimensioned tube drawing and required cut or coil format. Jinxin will confirm the product boundary and return an itemized line configuration.

Product: Oxygen / respiratory tube, infusion / IV tube or another smooth single-layer medical tubeStructure check: Smooth single-layer tubing only; corrugated, steel-wire, spiral, suction and braided structures are not supported by this lineMaterial: Soft PVC compound grade, hardness, supplier data and any DEHP-free or other plasticizer restrictionSize: OD, ID, wall thickness and toleranceCollection: Required cut length or coil formatProduction: Target output and operating hoursQuality: Concentricity or roundness, clarity, flexibility, surface, cut-end quality, cleanliness, end-product standard and acceptance methodFactory: Voltage, frequency and destination country

Soft PVC tube extrusion line quote

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