Full Specifications for This PVC Pipe and Profile Extrusion
These are the figures for the reference section. On a custom order every one of them is set by your drawing instead.
| Material | Rigid PVC, SG-5 grade |
|---|---|
| Section size | 20 mm × 10 mm on the reference profile |
| Wall thickness | 1.3 mm |
| Weight | 85 g per metre |
| Cut length | 1000 mm, or cut to your assembly length |
| Colour | Origin (natural) as standard, colour matched on custom runs |
| Fire rating | UL 94 V-0 |
| Geometry | Hollow pipe and chamber sections, solid strips, channels and combined shapes |
| Production route | Melting, die forming, cooling, haul-off traction, cutting |
| Supply mode | Wholesale stock sections plus OEM and ODM custom extrusion |
In-house tooling
Dies designed and trialled on site
No export limit
Shipped worldwide on agreed terms
Since 1998
Over 20 years of export trade
One plant
Compound, extrusion, cutting, packing
Hollow and Solid PVC Extruded Profiles From One Production Source
A hollow section and a solid section are two different die problems. The hollow one needs a mandrel and a sizing sleeve holding wall thickness all the way round the void. The solid one needs balanced melt flow across an uneven cross-section so it does not sink or bow. Most buyers hand those two jobs to two different suppliers, then pay for it twice in tooling time, colour batches and tolerance arguments.
The section shown here does both in one part: a closed chamber, a bulb groove for a gasket or keder, and a flat mounting flange, all extruded together from a single rigid PVC compound. That is what this line is set up for. If your assembly needs a tube, a trim strip and a channel that all have to match, they can come off the same resin lot in the same colour, on the same shipment.
Why Buyers Choose Dachang for Wholesale PVC Profile Extrusion
Matching parts, one resin lot
Colour is set in the compound, not corrected afterwards. A chamber section and the trim that clips into it are extruded from the same batch, so they arrive the same shade. Colour mismatch between components bought from two plants is the single most common reason a plastics kit gets rejected on the assembly bench, and single-source supply removes it.
Wall thickness held by the tool
Grams per metre is the fastest wall check on any extrusion line. The reference profile runs to an 85 g/m target at 1.3 mm wall, and drift shows up in the weight before it shows up in a caliper reading. Your incoming inspection can verify a delivery with a scale and a tape measure instead of sectioning parts in a lab.
UL 94 V-0 built into the material
The fire rating comes from the compound, not from a coating, so it survives your cutting, drilling and machining. For anyone quoting into electrical enclosures, lighting housings or fitted interiors, that keeps a flame-treatment step out of the bill of materials and out of the cost sheet.
Ask Dachang for Wholesale PVC Profile Pricing
Rigid SG-5 PVC Extrusion Material and Fire Performance Explained
SG-5 is a general-purpose suspension PVC resin. Its molecular weight range processes cleanly through both a hollow mandrel die and a complex solid die, which is the practical reason one compound can serve both halves of a pipe and profile order rather than forcing a material change halfway through the project.
In service the rigid sections give you high strength for the weight, corrosion resistance, electrical insulation, UV resistance suitable for outdoor exposure, and the UL 94 V-0 fire rating. Weathering is worth specifying carefully: manufacturers now treat consistent colour and gloss over ten, fifteen or twenty years as the line that separates a serious extruder from a cheap one, so tell us the exposure conditions and the compound gets chosen against them.
Processing runs end to end here. Pellets are melted in the extruder, formed through the die, cooled and dimensionally fixed, drawn by haul-off traction and cut to length. Traction speed and cooling decide whether a hollow chamber stays concentric, and both stay under one process owner instead of being split between a tube shop and a trim shop.
Background reading from our engineers: Pipe, Profile and Tubing Extrusion and The Plastic Extrusion Process.
Project Ready PVC Extruded Profiles for Building, Lighting and Industrial Programmes
Building and window systems
More than half the windows installed worldwide are now plastic framed, and the reason is exactly the geometry in these photos: closed chambers add stiffness and a thermal break without adding weight, while an integrated groove holds the gasket without a second component. Frame, sash, sill trim and glazing bead can all be quoted as one tooling package.
Lighting and electrical housings
A V-0 rated insulating section that can carry a wire chamber and a snap groove in the same part suits fixture bodies, cable routing and terminal covers. When the fixture also needs a light-transmitting cover, the acrylic and polycarbonate profiles run on our neighbouring lines can be matched to the same footprint.
Industrial fittings and OEM assemblies
Cut-to-length sections drop straight into an assembly jig with no resizing step. The corrosion resistance holds up in wash-down and chemically loaded areas where coated metal trim is usually the first thing to fail and the first thing your service team is called back for.
Custom PVC Pipe and Profile Extrusion Made to Your Drawing
Send a 2D cross-section, a physical sample, or a competitor part you need matched. What comes back is an engineering review on the points that actually move cost and risk: whether the wall thickness is uniform enough to extrude without sink marks, whether your tolerance band is realistic on a hollow chamber or over-constrained, where the mandrel legs will place weld lines, and whether the shape needs one die or a two-stage calibration.
- Cross-section - hollow, multi-chamber, channel, angle, bulb groove, snap-fit and combined shapes in rigid PVC.
- Colour - matched to your reference chip and repeated across reorders.
- Length - cut to your fixture or your carton, not to a standard bar size.
- Tooling - die design, trial extrusion and sample correction before any batch is released.
- Finishing - cutting, punching and secondary operations agreed at quotation, not invoiced later.
The cheapest place to fix a hollow profile is on the print. The second cheapest is the first trial. After that it stops being cheap, so send the drawing early even if the design is not frozen.
Send Your Drawing to Dachang for OEM Extrusion
How Every Batch of Factory Tested PVC Extrusion Is Checked
Three checks catch the faults that buyers actually complain about. Section dimensions are verified against the die drawing. Running weight is tracked through the shift as a live indicator of wall drift. Cut length is checked at the saw so parts land inside your assembly window rather than needing to be trimmed on arrival.
Fire performance is specified at material level through the UL 94 V-0 rated compound. Nothing beyond that is claimed on this page. If your programme needs a third-party test report or an additional standard, raise it in the enquiry and it gets answered before tooling is committed, which is a far better place to find out than after a container has landed.
Packaging and Shipping for Bulk Order PVC Profile Extrusion
Sections are packed to protect edges and prevent bowing in transit, then bundled or cartoned by cut length. Hollow and solid parts from the same order travel together on one document set, so you get one packing list, one bill of lading and one arrival date instead of reconciling two shipments before assembly can start.
There is no restriction on destination. Wherever secure and mutually agreed payment terms can be set, the order can be exported by sea or by air. Tell us the incoterm you work on and freight is quoted alongside the unit price rather than appearing afterwards.
MOQ and Lead Times for Custom PVC Extruded Profiles
Minimum order is driven by the cross-section and the tooling status, not by a fixed carton count. A shape already sitting on tooling has a low entry quantity. A new die means the first order carries enough metres to justify the tool and the trial run, and repeat orders on that same tool drop to normal production economics.
Lead time splits the same way: tooling and sample approval first, then batch production scheduled against line availability. Both are quoted against your real drawing and quantity, so ask for them in the enquiry and you get dates rather than a range.
Dachang Is Your Factory Direct PVC Profile Extrusion Manufacturer and Supplier
Dachang Plastic Hardware Processing Factory has been extruding custom plastic profiles since 1998 from Tangxia Town, Dongguan, Guangdong, with more than twenty years of international trade behind it. Development, tooling, extrusion, cutting and export sit in one building, so you are dealing with the people who run the die rather than an agent placing your order somewhere else.
Capacity covers both sample-scale trials and repeat volume, and the material range runs well past rigid PVC into soft PVC, clear PVC, co-extruded PVC, acrylic, polycarbonate, ABS and the PP, HIPS, POM and TPE families. For a buyer consolidating a plastics bill of materials, that means the chamber section, the matching trim and the clear cover can all come back on one quotation from one supplier.
Related ranges: Rigid PVC Profile, PVC Plastic Tube, Co-Extrusion PVC Profile.
Procurement FAQs About PVC Pipe and Profile Extrusion
How are your extruded profiles actually produced?
Pellets are heated and melted in the extruder, formed through a die that defines the cross-section, cooled and dimensionally set, drawn by traction and cut to length. Hollow shapes add a mandrel and a sizing stage to hold the internal geometry. Dachang runs all of those stages in house, so tooling, extrusion and cutting are not subcontracted out to three different workshops.
Can you extrude a hollow chamber and a matching solid trim for the same assembly?
Yes, and that is the main reason buyers come to this page. Both geometries run from the same compound and the same colour batch, so mating parts arrive matched. Send both cross-sections together and they are quoted, tooled and shipped as a single order.
Do you work from my drawing, or only from your existing sections?
Both. Stock shapes ship as wholesale sections with no tooling charge. Custom work starts from your 2D drawing, a physical sample, or an existing part to be copied, and Dachang returns an engineering opinion on tolerance and wall uniformity before any steel is cut.
What performance can I specify from rigid PVC sections?
High strength, corrosion resistance, electrical insulation, UV resistance for outdoor service and a UL 94 V-0 fire rating on the SG-5 grade used here. Tell us which of those governs your application and the compound is selected against that property rather than against a generic spec.
Which countries do you export to?
There is no destination restriction. Wherever secure and mutually trusted payment terms can be agreed, the order goes out. Freight mode and incoterm are fixed at quotation so your landed cost is clear before you place the order.
What do you need from me to give a firm quote?
Six things: cross-section drawing or sample, required tolerance, colour reference, cut length, first-order and annual quantity, and destination port. With those, you get unit price, tooling cost and lead time. Without the drawing, only an indicative figure is possible.
Request a Quote From Dachang, a PVC Profile Extrusion Manufacturer
Drawings are reviewed by the engineer who will run the tool, not by a sales inbox. Reply usually goes out the same working day.